Pipe piece, assembly type lining structure and assembling method of lining structure

Abstract

The invention provides a pipe piece, an assembly type lining structure and an assembling method of the lining structure, and relates to the technical field of assembly type lining structures. The pipe piece comprises a pipe piece body, a waterproof sealing gasket and a connecting assembly. The segment body comprises an inner cambered surface, an outer cambered surface, a front end face, a rear end face, a first longitudinal seam end face and a second longitudinal seam end face, a first included angle alpha between the first longitudinal seam end face and the front end face is not equal to 90 degrees, and a second included angle beta between the second longitudinal seam end face and the front end face is not equal to 90 degrees. The waterproof sealing gaskets are arranged on the first longitudinal seam end face and the second longitudinal seam end face. The connecting assembly comprises a socket female part and a socket male part, the socket male part and the socket female part are arranged on the first longitudinal seam end face and the second longitudinal seam end face respectively, and the socket female part is provided with an insertion hole matched with at least part of the socket male part. By using the duct piece provided by the invention, the waterproof potential safety hazard at the joint of the duct piece can be reduced, and continuous and automatic assembly of an assembly type lining structure can be realized.

Description

Technical Field

[0001] This application relates to the technical field of prefabricated lining structures, and particularly relates to a segment, a prefabricated lining structure, and an assembling method for the lining structure. Background Art

[0002] Prefabricated linings are usually formed by connecting precast segments through a number of joints. The commonly adopted forms of current joint structures include: bolt joints, hinge joints, pin insertion joints, wedge joints, tenon joints, etc.

[0003] Combined with existing engineering examples, when the existing socket joint structure is applied to segments, the following problems will occur:

[0004] (1) The joint structure on the segment restricts the construction process during segment installation. Usually, the segment to be assembled needs to be first moved along the direction parallel to the longitudinal joint to one side of the previously assembled segment, and at the position where the longitudinal joint end faces of the two segments are opposite, the moving direction of the segment to be assembled is adjusted so that the longitudinal joint between the segment to be assembled and the previously assembled segment gradually becomes narrower. During this process, the waterproof gasket between the two segments is compressed. When the width of the longitudinal joint reaches the preset requirement, the joint structures on the two segments are connected to complete the assembly of the segment. In this process, the movement route of the segment is complex, it is difficult to achieve automated assembly, and the assembly efficiency is relatively low.

[0005] (2) As Figure 1 shown, Figure 1 is a schematic diagram of the segment assembly process in the prior art. In the figure, M1 is the moving direction of the segment to be assembled. In the direction M1 parallel to the longitudinal joint as shown in the figure, the segment 01 to be assembled is directly moved at one time to a preset distance from the previously assembled lining ring 03, and then the joint structure between the segment 01 to be assembled and the previously assembled segment 02 is connected. By installing the segment in this way, although the movement route of the segment is simple and it is easy to achieve automation, however, since a waterproof gasket is provided on the longitudinal joint end face of the segment, the waterproof gasket protrudes about 10 mm above the longitudinal joint end face of the segment. In a prefabricated lining structure, the distance between adjacent segments is about 1 - 2 mm. Therefore, the waterproof gasket needs to be almost completely compressed before the segment 01 to be assembled can be inserted. This results in a large resistance during segment assembly and may cause the bonding between the waterproof gasket and the segment to fail, and the waterproof gasket accumulates at the corners of the segment, becoming a potential safety hazard for the waterproofing of the segment joint.

[0006] (3) The water pressure resistance and long-term durability of the segment joint waterproof system: Due to the existence of the conflicts described in (1) and (2), the solution in existing engineering cases is to use a water-swellable rubber waterstop strip instead of the waterproof gasket. Research shows that the structure of the water-swellable material tends to be loose after swelling. Under the long-term high water pressure at the prefabricated lining joint, the waterproof reliability needs to be further verified.

[0007] In summary, in view of the problems existing in the existing prefabricated lining structure, it is necessary to optimize the existing segment structure to ensure the reliability of the prefabricated lining structure during construction and use. Summary of the Invention

[0008] The present application provides a segment, a prefabricated lining structure and an assembling method of the lining structure to solve the problems of complex assembling process of the lining structure and waterproof hidden danger after assembling.

[0009] In a first aspect, the present application provides a segment, which includes a segment body, a waterproof gasket and a connecting component.

[0010] The segment body includes an inner arc surface, an outer arc surface, a front end surface, a rear end surface, a first longitudinal joint end surface and a second longitudinal joint end surface. The inner arc surface is used to form the inner wall of the lining, the outer arc surface is used to form the outer wall of the lining, the front end surface and the rear end surface are two end surfaces parallel to each other along the axis direction of the segment, and the first longitudinal joint end surface and the second longitudinal joint end surface are two opposite end surfaces in the circumferential direction of the segment body; the first included angle α between the first longitudinal joint end surface and the front end surface is not equal to 90°, and the second included angle β between the second longitudinal joint end surface and the front end surface is not equal to 90°.

[0011] The waterproof gasket is arranged on the first longitudinal joint end surface and the second longitudinal joint end surface.

[0012] The connecting component includes a socket female part and a socket male part. One of the socket male part and the socket female part is arranged on the first longitudinal joint end surface, and the other is arranged on the second longitudinal joint end surface. The socket female part has a socket adapted to at least part of the socket male part, and the depth direction of the socket is parallel to the axis direction of the segment.

[0013] Through the segment provided by the first aspect, the front end face of the segment body can be in contact with the previously installed lining ring, and the rear end face of the segment body is used to be in contact with the next lining ring to be installed. Usually, the front end face and the rear end face of the segment body are parallel and both are perpendicular to the axis of the segment. The first angle α between the first longitudinal joint end face and the front end face is not equal to 90°, that is to say, the first longitudinal joint end face is not perpendicular to the front end face. This setting is different from the structure of the segment body on the market. When assembling the lining ring, when the segment is inserted along the axis direction of the segment, the waterproof gaskets between two adjacent segments will not be squeezed and rubbed from the beginning. Instead, as the assembly process progresses, squeezing gradually occurs, and finally the waterproof gasket is squeezed to the required degree, and the assembly of the segment is completed. Thus, when the segment can move in a single straight line direction, the resistance of the segment movement is reduced, the damage to the waterproof gasket on the segment is eliminated or reduced, and the possibility of local accumulation of the waterproof gasket is reduced, and the potential safety hazard of waterproofing at the segment joint is reduced, which is beneficial to realizing the automatic assembly of the lining structure. Similarly, the second angle β between the second longitudinal joint end face and the front end face is not equal to 90°. Through this setting, when assembling the lining ring, after the segment is assembled, the assembled segment and the next segment to be assembled can also be gradually squeezed and contacted through the inclined plane, which is beneficial to reducing the resistance of the movement of the next segment, eliminating or reducing the damage to the waterproof gasket on the second longitudinal joint end face, and reducing the possibility of local accumulation of the waterproof gasket, and reducing the potential safety hazard of waterproofing at the segment joint, which is beneficial to realizing the continuous automatic assembly of the lining structure.

[0014] By providing the above-mentioned connection assembly, during the process of assembling the segment by moving it along the axis direction, the cooperation between the male socket part and the female socket part can be achieved without changing the movement direction, so as to realize the connection between adjacent segments, and further facilitate the automatic assembly of the segments without damaging the waterproof gaskets on the segments.

[0015] In a possible design, the first angle α and the second angle β are complementary.

[0016] Through the above solution, when assembling the segments, in two adjacent segments, the first angle of one segment and the second angle of the other segment form a flat angle, realizing the neat assembly of adjacent segments.

[0017] In a possible design, the first angle α is equal to the second angle β.

[0018] Through the above solution, when assembling the segments, the directions of the front end face and the rear end face of two adjacent segments are reversed, and the neat assembly of adjacent segments can also be realized.

[0019] In a possible design, the absolute value of the difference between the first angle α and 90° is between 5° and 22°.

[0020] Through the above solution, the absolute value of the difference between the first included angle α and 90° characterizes the inclination degree of the end face of the first longitudinal joint. When the absolute value is larger, it indicates that the inclination degree of the end face of the first longitudinal joint is larger. During the segment assembly process, the waterproof gasket on the segment is extruded and rubbed for a shorter time, which can reduce the possibility of local accumulation of the waterproof gasket and reduce the potential safety hazard of waterproofing at the segment joint. However, the acute angle formed between the end face of the first longitudinal joint and the front end face or between the end face of the first longitudinal joint and the rear end face will be sharper, and the possibility of this acute angle being knocked and broken is greater. When the absolute value is smaller, it indicates that the inclination degree of the end face of the first longitudinal joint is smaller. During the segment assembly process, the waterproof gasket on the segment is extruded and rubbed for a longer time, increasing the possibility of local accumulation of the waterproof gasket, thereby increasing the potential safety hazard of waterproofing at the segment joint. However, the angle of the acute angle formed between the end face of the first longitudinal joint and the front end face or between the end face of the first longitudinal joint and the rear end face will be larger, and the possibility of this acute angle being knocked and broken is smaller. Therefore, in this solution, the absolute value of the difference between the first included angle α and 90° is controlled between 5° and 22°, so that the inclination degree of the end face of the first longitudinal joint is moderate, and the angle of the acute angle formed between the end face of the first longitudinal joint and the front end face or between the end face of the first longitudinal joint and the rear end face is also moderate. While reducing the potential safety hazard of waterproofing at the segment joint, it reduces the possibility of the acute angle formed between the end face of the first longitudinal joint and the front end face or between the end face of the first longitudinal joint and the rear end face being damaged.

[0021] In a possible design, the absolute value of the difference between the second included angle β and 90° is between 5° and 22°.

[0022] Through the above solution, the inclination degree of the end face of the second longitudinal joint can be made moderate, and the angle of the acute angle formed between the end face of the second longitudinal joint and the front end face or the rear end face is also moderate. While reducing the potential safety hazard of waterproofing at the segment joint, it reduces the possibility of the acute angle formed between the end face of the second longitudinal joint and the front end face or between the end face of the second longitudinal joint and the rear end face being damaged.

[0023] In a possible design, the top surface of the waterproof gasket on the end face of the first longitudinal joint is at least 4 mm higher than the end face of the first longitudinal joint, and the top surface of the waterproof gasket on the end face of the second longitudinal joint is at least 4 mm higher than the end face of the second longitudinal joint.

[0024] Through the above solution, it is ensured that the waterproof gasket can be fully compressed after the segment assembly.

[0025] In a possible design, the socket sub-component includes a flange section and a web section. The web section is located between the flange section and the segment body. The socket sub-component has a width direction and a thickness direction. The width direction is parallel to the axial direction of the segment body, and the thickness direction is parallel to the thickness direction of the segment body. In the thickness direction, the size of the flange section is larger than that of the web section.

[0026] The socket female part includes an engaging section and a female part connection section. The female part connection section is located between the engaging section and the segment body. The socket is provided in the engaging section. The shape of the socket is adapted to the flange section, and a receiving groove is provided on one side of the socket away from the female part connection section, and the receiving groove penetrates the side wall of the socket.

[0027] Through the above solution, when the socket male part of one segment is inserted into the socket female part of another segment, the flange section of the socket male part is located in the socket of the socket female part, and the web section of the socket male part is connected to the flange section and the segment body through the receiving groove. Since in the thickness direction, the size of the flange section is larger than that of the web section, after the socket male part and the socket female part are matched, the movement of two adjacent segments in the direction of approaching each other, the movement in the direction of moving away from each other, the movement in the thickness direction, and the rotational movement in each direction can be restricted, so that the assembled lining structure using the segment is more firm and the structural stability is stronger.

[0028] In a possible design, when the first included angle α is an acute angle, the socket male part located on the first longitudinal joint end face is configured such that in the direction from the front end face to the rear end face, the thickness dimensions of the flange section and the web section gradually decrease.

[0029] When the first included angle α is an obtuse angle, the socket male part located on the first longitudinal joint end face is configured such that in the direction from the front end face to the rear end face, the thickness dimensions of the flange section and the web section gradually increase.

[0030] When the second included angle β is an acute angle, the socket male part located on the second longitudinal joint end face is configured such that in the direction from the front end face to the rear end face, the thickness dimensions of the flange section and the web section gradually decrease.

[0031] When the second included angle β is an obtuse angle, the socket male part located on the second longitudinal joint end face is configured such that in the direction from the front end face to the rear end face, the thickness dimensions of the flange section and the web section gradually increase.

[0032] Through the above scheme, in order to facilitate construction, when the two matching segments are assembled, the segment assembled first will expose at least one longitudinal seam end face, which is inclined toward the rear end face, that is, the angle between the longitudinal seam end face and the front end face is an acute angle, and the angle between the longitudinal seam end face and the rear end face is an obtuse angle. The longitudinal seam end face of the segment assembled later, which is used to match the previously assembled segment, is inclined toward the front end face, that is, the angle between the longitudinal seam end face and the front end face is an obtuse angle, and the angle between the longitudinal seam end face and the rear end face is an acute angle. In this way, the segment assembled later exerts pressure on the segment assembled earlier in the direction of the front end face, which facilitates construction. In the above case, by making the above changes in the thickness direction of the flange section and the web section, when the flange section is inserted into the insertion hole, the end of the flange section with a smaller thickness dimension is first inserted into the insertion hole, and the end of the rear flange section with a larger thickness dimension is gradually inserted into the insertion hole, which is conducive to the rapid matching of the socket sub-component and the socket mother component.

[0033] In a possible design, the socket sub-component further includes a transition section arranged on a side of the web section away from the flange section, a sub-component connecting section and a sub-component anchoring section.

[0034] The dimensions of the sub-component connecting section in the width direction and the thickness direction are both larger than the dimensions of the web section in the corresponding directions. The transition section is arranged between the web section and the sub-component connecting section to achieve a smooth transition between the web section and the sub-component connecting section.

[0035] The sub-component anchoring section is arranged on a side of the sub-component connecting section away from the transition section, and the sub-component anchoring section is arranged in the pipe segment body, so as to realize the fixation of the pipe segment body and the socket sub-component.

[0036] Through the above scheme, by setting the sub-component anchoring section, the sub-component anchoring section is arranged in the pipe segment body, which can achieve a deeper and firmer connection between the pipe segment body and the socket sub-component, and further help to improve the firmness and reliability of the connection between the pipe segments. The dimensions of the sub-component connecting section in the width direction and the thickness direction are larger than the dimensions of the web section in the corresponding directions, so that when the sub-component anchoring section is connected to the sub-component connecting section, the connection area is larger, which is conducive to achieving a more reliable connection between the sub-component anchoring section and the sub-component connecting section. The transition section is arranged between the web section and the sub-component connecting section, so that the dimensions between the web section with different sizes and the sub-component connecting section can gradually change, achieve a smooth transition, and prevent stress concentration between the web section and the sub-component connecting section and fracture.

[0037] In a possible design, the flange segment, the web segment and the sub-component connecting segment are coaxially arranged in the width direction.

[0038] Through the above solution, the socket sub-component will not be eccentric when subjected to force, which is conducive to the stable load-bearing of the socket sub-component.

[0039] In a possible design, multiple sets of connecting components are provided, and each set of connecting components includes a socket female part and a socket male part respectively disposed on the end face of the first longitudinal joint and the end face of the second longitudinal joint.

[0040] Through the above solution, adjacent segments are connected by multiple connecting components, and the connection is more firm and stable, and the segments are not prone to flipping.

[0041] In a second aspect, the present application provides a lining structure, including multiple lining rings, and at least one lining ring is assembled by the segments in any of the above solutions. In the same lining ring, the front faces of the segments face the same direction.

[0042] Through the above solution, when assembling the lining ring, the segments can be directly moved in place along the direction parallel to the axis, which is beneficial to realizing the continuous automatic assembly of the lining structure. During the process of the segments moving in a straight line direction, the insertion of the socket male part and the socket female part can be realized, as well as the compression of the waterproof gasket, and the compression of the waterproof gasket is a gradual compression rather than a one-time compression. Therefore, the movement resistance of the segments is small, the damage to the waterproof gasket on the segments can be avoided or reduced, and the possibility of local accumulation of the waterproof gasket can be reduced, and the potential safety hazard of waterproofing at the segment joints can be reduced.

[0043] In a possible design, at least one lining ring includes one first trapezoidal block, one second trapezoidal block, and multiple first standard blocks. The first included angle α of the first trapezoidal block is an acute angle, and the second included angle β is an acute angle; the first included angle α of the second trapezoidal block is an obtuse angle, and the second included angle β is an obtuse angle; the first included angle α of the first standard block is an acute angle, and the second included angle β is an obtuse angle. One side of the first trapezoidal block is adjacent to the first standard block, and the other side is adjacent to the second trapezoidal block.

[0044] The present application also provides a method for assembling the first lining structure, which is used to assemble the lining ring in the above solution. The method includes:

[0045] Provide one first trapezoidal block, one second trapezoidal block, and multiple first standard blocks.

[0046] Assemble the first trapezoidal block, and the front face of the first trapezoidal block faces the previously assembled lining ring.

[0047] Sequentially assemble multiple first standard blocks on the side where the end face of the first longitudinal joint of the first trapezoidal block is located, and the front faces of the first standard blocks face the previously assembled lining ring.

[0048] Assemble the second trapezoidal block on the side where the end face of the second longitudinal joint of the first trapezoidal block is located, and the front face of the second trapezoidal block faces the previously assembled lining ring.

[0049] Among any two adjacent segments, a longitudinal joint is formed between the first longitudinal joint end face of one segment and the second longitudinal joint end face of the other segment.

[0050] In a possible design, at least one lining ring includes one first trapezoidal block, one second trapezoidal block, and multiple second standard blocks. The first included angle α of the second standard block is an obtuse angle, and the second included angle β is an acute angle. One side of the first trapezoidal block is adjacent to the second standard block, and the other side is adjacent to the second trapezoidal block.

[0051] The present application also provides an assembling method for the second lining structure, which is used to assemble the lining ring in the above solution. The method includes:

[0052] Provide one first trapezoidal block, one second trapezoidal block, and multiple second standard blocks.

[0053] Assemble the first trapezoidal block with the front end face of the first trapezoidal block facing the previously assembled lining ring.

[0054] Sequentially assemble multiple second standard blocks on the side where the second longitudinal joint end face of the first trapezoidal block is located, with the front end faces of the second standard blocks facing the previously assembled lining ring.

[0055] Assemble the second trapezoidal block on the side where the second longitudinal joint end face of the last second standard block is located, with the front end face of the second trapezoidal block facing the previously assembled lining ring.

[0056] Among any two adjacent segments, a longitudinal joint is formed between the first longitudinal joint end face of one segment and the second longitudinal joint end face of the other segment.

[0057] In a possible design, at least one lining ring includes one first trapezoidal block, one second trapezoidal block, at least one first standard block, and at least one second standard block. One side of the first trapezoidal block is adjacent to the first standard block, and the other side is adjacent to the second standard block.

[0058] The present application also provides an assembling method for the third lining structure, which is used to assemble the lining ring in the above solution. The method includes:

[0059] Provide one first trapezoidal block, one second trapezoidal block, at least one first standard block, and at least one second standard block.

[0060] Assemble the first trapezoidal block with the front end face of the first trapezoidal block facing the previously assembled lining ring.

[0061] Assemble at least one first standard block on the side where the first longitudinal joint end face of the first trapezoidal block is located, with the front end faces of the first standard blocks facing the previously assembled lining ring.

[0062] Assemble at least one second standard block on the side where the second longitudinal joint end face of the first trapezoidal block is located, and the front end face of the second standard block faces the previously assembled lining ring.

[0063] Assemble a second trapezoidal block between the first standard block and the second standard block, and the front end face of the second trapezoidal block faces the previously assembled lining ring.

[0064] Among them, between any two adjacent segments, a longitudinal joint is formed between the first longitudinal joint end face of one segment and the second longitudinal joint end face of the other segment.

[0065] In a possible design, at least one lining ring includes multiple first trapezoidal blocks and multiple second trapezoidal blocks. The first trapezoidal blocks and the second trapezoidal blocks are arranged alternately.

[0066] The present application also provides an assembling method for the fourth lining structure, which is used to assemble the lining ring in the above solution. The method includes:

[0067] Provide multiple first trapezoidal blocks and multiple second trapezoidal blocks.

[0068] Assemble multiple first trapezoidal blocks, leaving an installation space between adjacent first trapezoidal blocks, and the front end face of the first trapezoidal block faces the previously assembled lining ring.

[0069] Insert a second trapezoidal block into the installation space, and the front end face of the second trapezoidal block faces the previously assembled lining ring.

[0070] Among them, between any two adjacent segments, a longitudinal joint is formed between the first longitudinal joint end face of one segment and the second longitudinal joint end face of the other segment.

[0071] The above solution provides four different precast lining structures and their corresponding assembling methods, all of which can enable the segments in at least one lining ring to move directly into place along the direction parallel to the axis, and can avoid or reduce the damage to the waterproof gaskets on the segments, and reduce the possibility of local accumulation of the waterproof gaskets, reducing the potential safety hazards of waterproofing at the segment joints. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] Figure 1 It is a schematic diagram of the segment assembling process in the prior art.

[0073] Figure 2 It is an axonometric schematic diagram of a segment provided by an embodiment of the present application.

[0074] Figure 3 It is a cross-sectional view of a waterproof gasket at the longitudinal joint end face of a segment provided by an embodiment of the present application.

[0075] Figure 4 It is a schematic diagram of the segment assembling process provided by an embodiment of the present application.

[0076] Figure 5 View of one side of the inner arc surface of a first standard block provided by an embodiment of the present application.

[0077] Figure 6 View of one side of the inner arc surface of a second standard block provided by an embodiment of the present application.

[0078] Figure 7 View of one side of the inner arc surface of a first trapezoidal block provided by an embodiment of the present application.

[0079] Figure 8 View of one side of the inner arc surface of a second trapezoidal block provided by an embodiment of the present application.

[0080] Figure 9 Schematic structural diagram of a socket sub - part provided by an embodiment of the present application.

[0081] Figure 10 Schematic structural diagram of a socket mother - part provided by an embodiment of the present application.

[0082] Figure 11 Schematic structural diagram of the cooperation between a socket sub - part and a socket mother - part provided by an embodiment of the present application.

[0083] Figure 12 Cross - sectional view of the joint of two adjacent segments after assembly according to an embodiment of the present application.

[0084] Figure 13 Expanded view of the first type of lining ring provided by an embodiment of the present application.

[0085] Figure 14 Flowchart of the assembling method for the first type of lining ring.

[0086] Figure 15 Expanded view of the second type of lining ring provided by an embodiment of the present application.

[0087] Figure 16 Flowchart of the assembling method for the second type of lining ring.

[0088] Figure 17 Expanded view of the third type of lining ring provided by an embodiment of the present application.

[0089] Figure 18 Flowchart of the assembling method for the third type of lining ring.

[0090] Figure 19 Expanded view of the fourth type of lining ring provided by an embodiment of the present application.

[0091] Figure 20 Flowchart of the assembling method for the fourth type of lining ring.

[0092] Prior art reference numerals: 01, segment being assembled; 02, assembled segment; 03, assembled lining ring.

[0093] Reference numeral descriptions in this application: 10, segment being assembled; 20, assembled segment; 30, assembled lining ring;

[0094] 100, segment body; 101, inner arc surface; 102, outer arc surface; 103, front end face; 104, rear end face; 105, first longitudinal joint end face; 106, second longitudinal joint end face; 107, groove; α, first included angle; β, second included angle; 110, first standard block; 120, second standard block; 130, first trapezoidal block; 140, second trapezoidal block;

[0095] 200, waterproof gasket;

[0096] 300, connection assembly; 310, male socket part; 311, flange section; 312, web section; 313, transition section; 314, sub - part connection section; 315, sub - part anchoring section; 320, female socket part; 321, socket; 322, accommodation groove; 323, engaging section; 324, mother - part connection section; 325, mother - part anchoring section; Y, width direction; Z, thickness direction. Detailed implementation manners

[0097] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are some but not all of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art without making creative efforts based on the embodiments in this application belong to the scope of protection of this application.

[0098] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used in the description of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the description and claims of this application and the drawings are intended to cover non - exclusive inclusion.

[0099] Referring to "embodiment" herein means that a specific feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase "embodiment" appearing in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0100] In this text, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: the existence of A, the simultaneous existence of A and B, and the existence of B. Additionally, in this text, the character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0101] The orientation terms appearing in the following descriptions are all the directions shown in the figures, and do not limit the specific structure of the segment or precast lining structure of this application. For example, in the description of this application, terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application.

[0102] In addition, terms such as "first", "second", etc. in the description, claims or the above-mentioned drawings of this application are used to distinguish different objects, rather than to describe a specific order, and may explicitly or implicitly include one or more of such features.

[0103] In the description of this application, unless otherwise specified, the meaning of "a plurality of" refers to two or more (including two). Similarly, "a plurality of groups" refers to two or more groups (including two groups).

[0104] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, the "connection" or "coupling" of mechanical structures can refer to a physical connection. For example, a physical connection can be a fixed connection, such as a fixed connection through screws, bolts, or other spacer members; a physical connection can also be a detachable connection, such as a snap connection or a snap-fit connection; a physical connection can also be an integral connection, such as welding, bonding, or integral molding. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. The "connection" or "coupling" of circuit structures can refer not only to a physical connection but also to an electrical connection or a signal connection. For example, it can be a direct connection, that is, a physical connection, or it can be indirectly connected through at least one intermediate element as long as the circuit is connected. It can also be the connection inside two components; in addition to the signal connection through the circuit, the signal connection can also refer to the signal connection through a media medium, such as radio waves. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0105] The precast lining is formed by transporting several precast segments into a tunnel or shaft and assembling them mechanically. Once assembled, it can bear the pressure of the surrounding rock. To prevent water outside the lining from seeping into the lining, a waterproof structure is usually provided between the segments to withstand a certain water pressure for a long time without leakage.

[0106] The problems existing in the construction of the existing precast lining structure include low assembly efficiency and waterproof hidden dangers. However, it is difficult to solve these two problems simultaneously with the current construction technology. In view of this, the present application provides a segment, a precast lining structure, and an assembly method of the lining structure to solve the problems of complex assembly process of the lining structure and waterproof hidden dangers after assembly.

[0107] In a first aspect, the present application provides a segment Figure 2 which is an axonometric schematic diagram of the segment provided by an embodiment of the present application. As Figure 2 shown, the segment includes a segment body 100, a waterproof gasket 200, and a connection assembly 300.

[0108] The segment body 100 includes an inner arc surface 101, an outer arc surface 102, a front end surface 103, a rear end surface 104, a first longitudinal joint end surface 105 and a second longitudinal joint end surface 106. The inner arc surface 101 is used to form the inner wall of the lining, and the outer arc surface 102 is used to form the outer wall of the lining. The front end surface 103 and the rear end surface 104 are two end surfaces parallel to each other along the axis direction of the segment body 100. The first longitudinal joint end surface 105 and the second longitudinal joint end surface 106 are two opposite end surfaces in the circumferential direction of the segment body 100. The first included angle α between the first longitudinal joint end surface 105 and the front end surface 103 is not equal to 90°, and the second included angle β between the second longitudinal joint end surface 106 and the front end surface 103 is not equal to 90°.

[0109] The waterproof gasket 200 is provided on the first longitudinal joint end surface 105 and the second longitudinal joint end surface 106.

[0110] The segment is the basic unit that constitutes the precast lining. The segment body 100 is the main component of the segment. The inner arc surface 101, the outer arc surface 102, the front end surface 103, the rear end surface 104, the first longitudinal joint end surface 105 and the second longitudinal joint end surface 106 are the surfaces of the segment body 100 in six directions, and they jointly enclose to form the segment body 100.

[0111] The connection assembly 300 is fixed on the segment body 100, and the connection assemblies 300 of adjacent segments are connected to each other, so as to realize the connection and assembly of different segments.

[0112] When the segments are assembled to form the lining structure, the inner arc surfaces 101 all face the inner side of the precast lining structure, and the inner arc surfaces 101 of multiple segments are assembled to form the inner wall of the lining. Similarly, all the outer arc surfaces 102 of the segments face the outer side of the precast lining structure, and the outer arc surfaces 102 of multiple segments are assembled to form the outer wall of the lining.

[0113] The axis of the segment is the axis formed by the bending of the segment body 100. The axis of the segment is a virtual straight line, and the direction in which this axis extends is the axis direction of the segment.

[0114] When forming the lining structure, it is necessary to first form a lining ring with multiple segments. Usually, this lining ring is a closed ring. The position where the first lining ring is located is defined as the starting position of the precast lining structure. Then, another lining ring is assembled on one side of this lining ring, and so on, so that the lining structure has a certain length. The axis of each lining ring usually coincides with the axis of the segments that make up this lining ring, and the axes of adjacent two lining rings are parallel or continuous.

[0115] In this application, the front end surface 103 of the segment refers to the end surface close to the starting position, and the rear end surface 104 of the segment refers to the end surface far from the starting position. Usually, the front end surface 103 of the segment is parallel to the rear end surface 104 of the segment.

[0116] The circumferential direction of the segment body 100 refers to the direction in which the segment body 100 bends.

[0117] The first longitudinal joint end face 105 and the second longitudinal joint end face 106 are arranged opposite to each other along the circumferential direction of the segment body 100, so that they can be opposite to adjacent segments respectively and form a longitudinal joint between two adjacent segments.

[0118] The waterproof gasket 200 is arranged at least on the first longitudinal joint end face 105 and the second longitudinal joint end face 106 of the segment body 100, and can also be arranged on the front end face 103 and the rear end face 104 to achieve a good waterproof and sealing effect between the segment and adjacent segments around it.

[0119] The waterproof gasket 200 can be fixed on the segment body 100 by various possible means such as bonding, screw connection, embedding, etc.

[0120] Figure 2 The cross-sectional view of the waterproof gasket at the first longitudinal joint end face of a segment provided by the embodiment of the present application is shown.

[0121] As Figure 1 and Figure 2 shown, in a possible design, a groove 107 communicating with the first longitudinal joint end face 105, the front end face 103, the second longitudinal joint end face 106 and the rear end face 104 is arranged on the segment body 100, and the waterproof gasket 200 is sleeved in the groove as a whole.

[0122] Please continue to refer to Figure 2 , the height of the waterproof gasket 200 is higher than the depth of the groove 107 by at least a first preset distance h, so that the waterproof gasket 200 can have a maximum compression amount of h between two adjacent segments, improving the waterproof and sealing effect between the segments. The size of the first preset distance h can be set according to the material of the waterproof gasket 200 and the sealing requirements of the assembled lining structure, as long as it is ensured that the height of the waterproof gasket 200 is higher than the depth of the groove 107.

[0123] The first included angle α between the first longitudinal joint end face 105 and the front end face 103 is not equal to 90°, and the second included angle β between the second longitudinal joint end face 106 and the front end face 103 is not equal to 90°. That is to say, the first longitudinal joint end face 105 is not perpendicular to the front end face 103, and the second longitudinal joint end face 106 is also not perpendicular to the front end face 103. Since the front end face 103 is usually parallel to the rear end face 104, it can be further obtained that the first longitudinal joint end face 105 is not perpendicular to the rear end face 104, and the second longitudinal joint end face 106 is also not perpendicular to the rear end face 104.

[0124] The segment body 100 of this structure is different from the segment body 100 on the market. With this setting, when assembling the lining ring, when the segments are inserted along the axial direction, the waterproof gaskets 200 on adjacent segments will not be squeezed and rubbed from the very beginning. Instead, as the assembly process progresses, squeezing gradually occurs, and finally the waterproof gaskets 200 are squeezed to the required degree, and the assembly of the segments is completed. Thus, when the segments can move in a single straight line direction, the resistance to the movement of the segments is reduced, damage to the waterproof gaskets 200 on the segments is eliminated or reduced, and the possibility of local accumulation of the waterproof gaskets 200 is reduced, reducing the potential safety hazard of waterproofing at the segment joints, which is conducive to realizing the automatic assembly of the lining structure.

[0125] Figure 4 The schematic diagram of the assembling process of a segment provided by an embodiment of the present application is shown. Figure 4 where M2 is the moving direction of the segment. From Figure 4 it can be seen that during the assembling process, the segment 10 to be assembled is directly inserted along the M2 direction. At the initial stage of the movement of the segment 10 to be assembled, there is a certain distance between it and the segment 20 that has been assembled. As the segment 10 to be assembled gradually approaches the already assembled lining ring 30, the distance between the segment 10 to be assembled and the segment 20 that has been assembled gradually shortens until the two come into contact. After that, the segment 10 to be assembled continues to move closer to the already assembled lining ring 30. During this process, the waterproof gasket 200 is squeezed, enhancing the waterproof sealing effect between adjacent segments until the segment 10 to be assembled moves into place.

[0126] In the above situation, the first angle α may be an acute angle or an obtuse angle. Similarly, the second angle β may be an acute angle or an obtuse angle.

[0127] In addition, the first angle α and the second angle β may be the same or different, as long as it is ensured that in the same lining ring, the angles at which two adjacent segments approach each other are complementary. For example, the first segment and the second segment are adjacent in the same lining ring, and the first angle α of the first segment and the second angle β of the second segment approach each other. At this time, the first angle α of the first segment and the second angle β of the second segment should be complementary.

[0128] Exemplarily, the first angle α of the first segment is 80 degrees, and the second angle β of the second segment is 100 degrees.

[0129] In a possible design, the first angle α and the second angle β of the segment are complementary.

[0130] In the above situation, two types of segment structures can be formed, which are as follows:

[0131] Such as Figure 5As shown, the first structure is: the first included angle α of the segment is an acute angle, and the second included angle β is an obtuse angle.

[0132] As Figure 6 shown, the second structure is: the first included angle α of the segment is an obtuse angle, and the second included angle β is an acute angle.

[0133] Define the segment with the first structure above as the first standard block 110, and the segment with the second structure above as the second standard block 120.

[0134] During segment assembly, when the shapes of two adjacent segments are the same, the first included angle α of one segment and the second included angle β of the other segment form a straight angle, achieving neat assembly of adjacent segments.

[0135] In another possible design, the first included angle α is equal to the second included angle β.

[0136] In the above case, two types of segments can also be formed, as follows:

[0137] As Figure 7 shown, the first structure is: the first included angle α of the segment is an acute angle, and the second included angle β is also an acute angle.

[0138] As Figure 8 shown, the second structure is: the first included angle α of the segment is an obtuse angle, and the second included angle β is also an obtuse angle.

[0139] Define the segment with the first structure above as the first trapezoidal block 130, and the segment with the second structure above as the second trapezoidal block 140.

[0140] The projections of the segments of the above two structures in the direction of the inner arc surface 101 or the outer arc surface 102 are trapezoid - shaped.

[0141] If the first trapezoidal block 130 and the second trapezoidal block 140 are to be used simultaneously in a lining ring, the first trapezoidal block 130 and the second trapezoidal block 140 can be exactly the same. As long as the segment is rotated 180 degrees during construction, the first trapezoidal block 130 can be converted into the second trapezoidal block 140, or the second trapezoidal block 140 can be converted into the first trapezoidal block 130, and the two types of segments can finally be assembled into a complete lining ring.

[0142] It can be understood that when the first trapezoidal block 130 and the second trapezoidal block 140 are exactly the same, using a set of molds can manufacture the first trapezoidal block 130 and the second trapezoidal block 140, saving the production cost of the segments. When assembling the lining structure, there is no need to deliberately distinguish between the first trapezoidal block 130 and the second trapezoidal block 140, saving the management cost of the segments and improving the assembly efficiency.

[0143] If the first trapezoidal block 130 and the second trapezoidal block 140 are to be used simultaneously in a lining ring, the first trapezoidal block 130 and the second trapezoidal block 140 may also be different. However, in order to enable any first trapezoidal block 130 to be assembled adjacent to any second trapezoidal block 140, the first included angle α of the first trapezoidal block 130 should be supplementary to the second included angle β of the second trapezoidal block 140. It can be understood that in this case, the second included angle β of the first trapezoidal block 130 is also supplementary to the first included angle α of the second trapezoidal block 140.

[0144] For example, both the first included angle α and the second included angle β of the first trapezoidal block 130 are 80 degrees, and both the first included angle α and the second included angle β of the second trapezoidal block 140 are 100 degrees. In this way, when assembling the segments, any second trapezoidal block 140 can be assembled on either the side where the first longitudinal joint end face 105 of any first trapezoidal block 130 is located or the side where the second longitudinal joint end face 106 is located, reducing the assembly difficulty of the lining structure.

[0145] It can be understood that although in this application, by controlling the first included angle α between the first longitudinal joint end face 105 and the front end face 103, and the second included angle β between the second longitudinal joint end face 106 and the front end face 103, such that α≠90° and β≠90°, to achieve the purpose of the segment moving in a straight line, to assist in realizing the automatic assembly of the lining structure and reducing the safety hazard of waterproofing at the segment joints. However, it does not mean that the larger the absolute value of the difference between the first included angle α or the second included angle β and 90° is, the better.

[0146] Taking the first included angle α as an example, the absolute value of the difference between the first included angle α and 90° characterizes the inclination degree of the first longitudinal joint end face 105. When this absolute value is larger, it indicates that the inclination degree of the first longitudinal joint end face 105 is larger. During the segment assembly process, the time for the waterproof gasket 200 on the segment to be squeezed and rubbed is shorter, which can reduce the possibility of local accumulation of the waterproof gasket 200 and reduce the safety hazard of waterproofing at the segment joints. However, the acute angle formed between the first longitudinal joint end face 105 and the front end face 103 or between the first longitudinal joint end face 105 and the rear end face 104 will be sharper, and when this acute angle is knocked, the possibility of fracture is greater. When this absolute value is smaller, it indicates that the inclination degree of the first longitudinal joint end face 105 is smaller. During the segment assembly process, the time for the waterproof gasket 200 on the segment to be squeezed and rubbed is longer, increasing the possibility of local accumulation of the waterproof gasket 200, thus increasing the safety hazard of waterproofing at the segment joints. However, the angle of the acute angle formed between the first longitudinal joint end face 105 and the front end face 103 or between the first longitudinal joint end face 105 and the rear end face 104 will be larger, and when this acute angle is knocked, the possibility of fracture is smaller.

[0147] Based on the above situation, the specific set angles of the first included angle α and the second included angle β need to take into account the waterproof reliability between the segments and the scrap rate of the segments themselves.

[0148] In a possible design, the absolute value of the difference between the first included angle α and 90° is between 5° and 22°.

[0149] The above design includes two cases. The first case is that the first included angle α is an acute angle, and 68° ≤ α ≤ 85°.

[0150] The second case is that the first included angle α is an obtuse angle, and 95° ≤ α ≤ 112°.

[0151] By controlling the absolute value of the difference between the first included angle α and 90° within the range of 5° - 22°, the inclination degree of the first longitudinal joint end face 105 can be made appropriate, and the angle of the acute angle formed between the first longitudinal joint end face 105 and the front end face 103 or between the first longitudinal joint end face 105 and the rear end face 104 is also appropriate. While reducing the potential safety hazards of waterproofing at the segment joints, the possibility of damage to the acute angle formed between the first longitudinal joint end face 105 and the front end face 103 or between the first longitudinal joint end face 105 and the rear end face 104 is reduced, and the scrap rate of the segments during transportation and assembly is lowered.

[0152] In a possible design, the absolute value of the difference between the second included angle β and 90° is between 5° and 22°.

[0153] Similarly, the above design also includes two cases. The first case is that the second included angle β is an acute angle, and 68° ≤ β ≤ 85°.

[0154] The second case is that the second included angle β is an obtuse angle, and 95° ≤ β ≤ 112°.

[0155] By controlling the absolute value of the difference between the second included angle β and 90° within the range of 5° - 22°, the inclination degree of the second longitudinal joint end face 106 can be made appropriate, and the angle of the acute angle formed between the second longitudinal joint end face 106 and the front end face 103 or the rear end face 104 is also appropriate. While reducing the potential safety hazards of waterproofing at the segment joints, the possibility of damage to the acute angle formed between the second longitudinal joint end face 106 and the front end face 103 or between the second longitudinal joint end face 106 and the rear end face 104 is reduced, and the scrap rate of the segments during transportation and assembly is lowered.

[0156] In a specific embodiment, among two adjacent segments, the first longitudinal joint end face 105 of the first segment is close to the second longitudinal joint end face 106 of the second segment, and a longitudinal joint is formed therebetween. Among them, the first included angle α of the first segment is 78.84°, and the second included angle β of the second segment is 101.16°. When the second segment is assembled with the first segment along the axial direction, the front end face 103 of the second segment and the rear end face 104 of the first segment are in the same plane, which is recorded as the starting point of the stroke. The front end face 103 of the second segment and the front end face 103 of the first segment are in the same plane, which is recorded as the end point of the stroke. When the stroke reaches 97%, the waterproof gaskets 200 on the two segments just start to contact. Only within the last 3% of the stroke, the waterproof gaskets 200 on the two segments are in a state of mutual extrusion.

[0157] In the related art, the waterproof gaskets 200 on two adjacent segments start to mutually extrude from the starting point of the stroke until the end point of the stroke.

[0158] It can be seen that by adopting the segment structure of the present application, during the segment assembly process, the stroke of mutual extrusion of the waterproof gaskets 200 on the segments is reduced by 97%, thereby effectively reducing the possibility of damage and local accumulation caused by the mutual extrusion of the waterproof gaskets 200, and improving the waterproof sealing reliability of the precast lining structure.

[0159] Based on this, it can be concluded that the resistance of the waterproof gasket 200 to segment assembly is small, and the thickness of the waterproof gasket 200 can be appropriately increased to ensure that the waterproof gasket 200 can be fully compressed after the segment assembly, further improving the waterproof sealing effect of the precast lining structure.

[0160] For example, in a possible design, the top surface of the waterproof gasket 200 on the first longitudinal joint end face 105 is at least 4 mm higher than the first longitudinal joint end face 105, and the top surface of the waterproof gasket 200 on the second longitudinal joint end face 106 is at least 4 mm higher than the second longitudinal joint end face 106.

[0161] As Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 shown, the segment further includes a connection component 300. The connection component 300 includes a socket female part 320 and a socket male part 310. The socket male part 310 and the socket female part 320 are respectively arranged on the first longitudinal joint end face 105 and the second longitudinal joint end face 106. The socket female part 320 has a socket adapted to at least part of the socket male part 310, and the depth direction of the socket is parallel to the axial direction of the segment.

[0162] By providing the above-mentioned connecting component 300, during the process of assembling the segments by moving them along the axial direction, the cooperation between the male socket member 310 and the female socket member 320 can be achieved without changing the movement direction, thereby realizing the connection between adjacent segments. Furthermore, the automated assembly of the segments can be facilitated without damaging the waterproof gasket 200 on the segments.

[0163] The following specifically describes the connecting component 300 based on the segment with the aforementioned structure.

[0164] Figure 9 It is a schematic structural diagram of a male socket member provided by an embodiment of the present application. Figure 10 It is a schematic structural diagram of a female socket member provided by an embodiment of the present application. Figure 11 It is a schematic structural diagram of the cooperation between a male socket member and a female socket member provided by an embodiment of the present application. Figure 12 It is a cross-sectional view of the joint of two adjacent segments assembled and completed according to an embodiment of the present application.

[0165] As Figure 9 shown, in a possible design, the male socket member 310 includes a flange section 311 and a web section 312. The web section 312 is located between the flange section 311 and the segment body 100. The male socket member 310 has a width direction Y and a thickness direction Z. The width direction Y is parallel to the axial direction of the segment body 100, and the thickness direction Z is parallel to the thickness direction of the segment body 100. In the thickness direction Z, the size of the flange section 311 is larger than that of the web section 312.

[0166] As Figure 10 shown, the female socket member 320 includes a biting section 323 and a female member connecting section 324. The female member connecting section 324 is located between the biting section 323 and the segment body 100. The socket hole 321 is provided in the biting section 323. The shape of the socket hole 321 is adapted to the flange section 311, and a receiving groove 322 is provided on the side of the socket hole 321 away from the female member connecting section 324. The receiving groove 322 penetrates the side wall of the socket hole 321.

[0167] The size of the socket hole 321 in any direction can be about 1 mm larger than that of the flange section 311. Similarly, the width dimension of the receiving groove 322 is also slightly larger than the thickness of the web section 312 by about 1 mm to reduce the resistance when the flange section 311 is inserted into the socket hole 321.

[0168] The web section 312 is located between the flange section 311 and the segment body 100. The web section 312 can be directly connected to the segment body 100 or indirectly connected to the segment body 100 through other structures. The embodiments of the present application do not limit this.

[0169] Combined with Figure 9 、 Figure 10 、 Figure 11 andFigure 12 When the male socket member 310 of one segment is inserted into the female socket member 320 of another segment, the flange section 311 of the male socket member 310 is located within the socket 321 of the female socket member 320, and the web section 312 of the male socket member 310 connects the flange section 311 and the segment body 100 via the accommodation groove 322.

[0170] Since, in the thickness direction Z, the size of the flange section 311 is greater than that of the web section 312, after the male socket member 310 and the female socket member 320 are fitted together, they can restrict the movement of two adjacent segments in the direction of approaching each other, moving away from each other, in the thickness direction Z, and rotational movement in all directions, thereby making the assembled lining structure using these segments more firm and having stronger structural stability.

[0171] For the convenience of construction, when two segments that cooperate with each other are assembled, at least one longitudinal joint end face of the segment assembled first will be exposed. This longitudinal joint end face is inclined towards the rear end face 104, that is to say, the angle between this longitudinal joint end face and the front end face 103 is an acute angle, and the angle between it and the rear end face 104 is an obtuse angle. The longitudinal joint end face of the segment assembled later, which is used to cooperate with the previously assembled segment, is inclined towards the front end face 103, that is to say, the angle between this longitudinal joint end face and the front end face 103 is an obtuse angle, and the angle between it and the rear end face 104 is an acute angle. In this way, when the segment assembled later is being assembled, it has a pressure on the previously assembled segment in the direction towards the front end face 103, which is convenient for construction.

[0172] Here, still taking two adjacent segments as the first segment and the second segment as an example, a longitudinal joint is formed between the first longitudinal joint end face 105 of the first segment and the second longitudinal joint end face 106 of the second segment. When the first angle α of the first segment is an acute angle and the second angle β of the second segment is an obtuse angle, the first segment is assembled first and the second segment is assembled later. When the first angle α of the first segment is an obtuse angle and the second angle β of the second segment is an acute angle, the second segment is assembled first and the first segment is assembled later.

[0173] Based on the above assembly sequence, the end of the male socket member 310 and the female socket member 320 that first mates is the end close to the rear end face 104 of the segment assembled first, or the end close to the front end face 103 of the segment inserted later.

[0174] In view of this, in order to facilitate the insertion of the male socket member 310 into the female socket member 320, in a possible design, the male socket member 310 can be arranged as follows:

[0175] When the first angle α is an acute angle, the male socket member 310 located on the first longitudinal joint end face 105 is configured such that, in the direction from the front end face 103 to the rear end face 104, the dimensions in the thickness direction Z of the flange section 311 and the web section 312 gradually decrease.

[0176] When the first included angle α is an obtuse angle, the socket and spigot sub-component 310 located on the end face 105 of the first longitudinal seam is configured such that in the direction from the front end face 103 to the rear end face 104, the dimensions in the thickness direction Z of the flange section 311 and the web section 312 gradually increase.

[0177] When the second included angle β is an acute angle, the socket and spigot sub-component 310 located on the end face 106 of the second longitudinal seam is configured such that in the direction from the front end face 103 to the rear end face 104, the dimensions in the thickness direction Z of the flange section 311 and the web section 312 gradually decrease.

[0178] When the second included angle β is an obtuse angle, the socket and spigot sub-component 310 located on the end face 106 of the second longitudinal seam is configured such that in the direction from the front end face 103 to the rear end face 104, the dimensions in the thickness direction Z of the flange section 311 and the web section 312 gradually increase.

[0179] By making the above changes to the dimensions in the thickness direction Z of the flange section 311 and the web section 312, when the flange section 311 is inserted into the socket 321, the end with a smaller thickness dimension of the flange section 311 first inserts into the socket 321, and then the end with a larger thickness dimension of the flange section 311 gradually inserts into the socket 321, which is conducive to achieving the rapid mating of the socket and spigot sub-component 310 and the socket and spigot female component 320.

[0180] Please continue to refer to Figure 9 , in a possible design, the socket and spigot sub-component 310 further includes a transition section 313, a sub-component connection section 314, and a sub-component anchoring section 315 provided on the side of the web section 312 away from the flange section 311.

[0181] The dimensions of the sub-component connection section 314 in the width direction Y and the thickness direction Z are both larger than the dimensions of the web section 312 in the corresponding directions. The transition section 313 is provided between the web section 312 and the sub-component connection section 314 for achieving a smooth transition between the web section 312 and the sub-component connection section 314.

[0182] The sub-component anchoring section 315 is provided on the side of the sub-component connection section 314 away from the transition section 313, and the sub-component anchoring section 315 is provided inside the segment body 100 for achieving the fixation of the segment body 100 and the socket and spigot sub-component 310.

[0183] By providing the sub-component anchoring section 315, and the sub-component anchoring section 315 is provided inside the segment body 100, a more in-depth and firm connection between the segment body 100 and the socket and spigot sub-component 310 can be achieved, which is further conducive to improving the firmness and reliability of the connection between segments.

[0184] Optionally, the sub-component anchoring section 315 can be configured as multiple anchor bars, and the anchor bars are cast inside the segment body 100 to achieve the fixation of the socket and spigot sub-component 310 and the segment body 100.

[0185] The dimensions of the sub-component connecting section 314 in the width direction Y and the thickness direction Z are both larger than the dimensions of the web section 312 in the corresponding directions. Therefore, when the sub-component anchoring section 315 is connected to the sub-component connecting section 314, the connection area is larger, which is conducive to achieving a more reliable connection between the sub-component anchoring section 315 and the sub-component connecting section 314.

[0186] The transition section 313 is arranged between the web section 312 and the sub-component connecting section 314, so that the size between the web section 312 and the sub-component connecting section 314 with size difference can gradually change, achieving a smooth transition and preventing stress concentration between the web section 312 and the sub-component connecting section 314 and causing fracture.

[0187] Optionally, the sub-component connecting section 314 , the transition section 313 , the web section 312 and the flange section 311 are integrally formed to increase the reliable connection between the various parts of the socket sub-component 310 .

[0188] Optionally, the sub-component anchoring section 315 is connected to the sub-component connecting section 314 by welding or threading.

[0189] In some embodiments, the socket female component 320 also includes a female component anchoring section 325, which is arranged on the side of the female component connecting section 324 away from the bite section 323, and the female component anchoring section 325 is arranged in the segment body 100, for achieving the fixation of the segment body 100 and the socket female component 320.

[0190] Optionally, the mother component anchoring section 325 may also adopt a structure of multiple anchor bars, and the multiple anchor bars are connected to the mother component connecting section 324 by welding or threaded connection, and the multiple anchor bars are cast in the segment body 100 to achieve the connection between the socket mother component 320 and the segment body 100.

[0191] like Figure 9 As shown, in a possible design, the flange segment 311 , the web segment 312 and the sub-component connecting segment 314 are coaxially arranged in the width direction Y.

[0192] Through the above solution, the socket sub-component 310 will not be eccentric when subjected to force, which is conducive to the stable load-bearing of the socket sub-component 310.

[0193] In a possible design, a plurality of connection assemblies 300 are provided, and each group of connection assemblies 300 includes a socket female component 320 and a socket male component 310 respectively provided on the first longitudinal seam end surface 105 and the second longitudinal seam end surface 106 .

[0194] Through the above solution, adjacent segments are connected via multiple connection components 300, so the connection is more firm and stable, and the segments are not prone to flipping.

[0195] In a specific example, two sets of connecting components 300 are provided on a segment. The socket sub-component 310 of one set of connecting components 300 is located on the first longitudinal joint end face 105, and the socket mother-component 320 is located on the second longitudinal joint end face 106. The socket sub-component 310 of the other set of connecting components 300 is located on the second longitudinal joint end face 106, and the socket mother-component 320 is located on the first longitudinal joint end face 105. On the premise of meeting the distance requirement between the connecting component 300 and the edge of the segment body 100, the distance between the socket mother-component 320 and the socket sub-component 310 located on the same longitudinal joint end face should be as large as possible to enhance the anti-overturning effect of the segment.

[0196] Based on the segment provided above, an embodiment of the present application further provides a lining ring, which is assembled by the segments in any of the above embodiments.

[0197] When assembling the above-mentioned lining ring, the segment can be directly moved into place along the direction parallel to the axis, which is conducive to realizing the continuous automatic assembly of the lining structure. During the process of the segment moving in a straight line, the insertion of the socket sub-component 310 and the socket mother-component 320 can be achieved, as well as the compression of the waterproof gasket 200. And the compression of the waterproof gasket 200 is a gradual compression rather than a one-time compression. Therefore, the movement resistance of the segment is small, which can avoid or reduce the damage to the waterproof gasket 200 on the segment, and reduce the possibility of local accumulation of the waterproof gasket 200, reducing the potential safety hazard of waterproofing at the segment joint.

[0198] Based on the structures of the first standard block 110, the second standard block 120, the first trapezoidal block 130 and the second trapezoidal block 140 provided above, the present application further provides four specific structures of the lining ring and corresponding assembling methods.

[0199] Figure 13 This is the developed view of the first lining ring provided by the embodiment of the present application. As Figure 13 shown, in a possible design, the first lining ring includes one first trapezoidal block 130, one second trapezoidal block 140 and multiple first standard blocks 110. One side of the first trapezoidal block 130 is adjacent to the first standard block 110, and the other side is adjacent to the second trapezoidal block 140.

[0200] It should be noted that during the actual assembly process, Figure 13 the left side of the leftmost segment is spliced with the right side of the rightmost segment to form a ring. The same applies to those mentioned below Figure 15 、 Figure 17 and Figure 19 as well.

[0201] As Figure 14As shown in the figure, based on the first lining ring described above, the present application also provides an assembling method for the first lining structure, which is used to assemble the first lining ring in the above solution. The method includes:

[0202] S110: Provide one first trapezoidal block 130, one second trapezoidal block 140 and multiple first standard blocks 110.

[0203] S120: Assemble the first trapezoidal block 130, with the front end face 103 of the first trapezoidal block 130 facing the previously assembled lining ring.

[0204] S130: Sequentially assemble multiple first standard blocks 110 on the side where the first longitudinal joint end face 105 of the first trapezoidal block 130 is located, with the front end face 103 of the first standard block 110 facing the previously assembled lining ring.

[0205] S140: Assemble the second trapezoidal block 140 on the side where the second longitudinal joint end face 106 of the first trapezoidal block 130 is located, with the front end face 103 of the second trapezoidal block 140 facing the previously assembled lining ring.

[0206] Wherein, between any two adjacent segments, a longitudinal joint is formed between the first longitudinal joint end face 105 of one segment and the second longitudinal joint end face 106 of the other segment.

[0207] Figure 15 is the developed view of the second lining ring provided by the embodiment of the present application. As Figure 15 shown, in a possible design, the second lining ring includes one first trapezoidal block 130, one second trapezoidal block 140 and multiple second standard blocks 120. One side of the first trapezoidal block 130 is adjacent to the second standard block 120, and the other side is adjacent to the second trapezoidal block 140.

[0208] As Figure 16 shown, the present application also provides an assembling method for the second lining structure, which is used to assemble the second lining ring in the above solution. The method includes:

[0209] S210: Provide one first trapezoidal block 130, one second trapezoidal block 140 and multiple second standard blocks 120.

[0210] S220: Assemble the first trapezoidal block 130, with the front end face 103 of the first trapezoidal block 130 facing the previously assembled lining ring.

[0211] S230: Sequentially assemble multiple second standard blocks 120 on the side where the second longitudinal joint end face 106 of the first trapezoidal block 130 is located, with the front end face 103 of the second standard block 120 facing the previously assembled lining ring.

[0212] S240: Assemble the second trapezoidal block 140 on the side where the second longitudinal joint end face 106 of the last second standard block 120 is located, with the front end face 103 of the second trapezoidal block 140 facing the previously assembled lining ring.

[0213] Among any two adjacent segments, a longitudinal joint is formed between the first longitudinal joint end face 105 of one segment and the second longitudinal joint end face 106 of the other segment.

[0214] Figure 17 This is the developed view of the third type of lining ring provided by the embodiments of the present application. As Figure 17 shown, in a possible design, the third type of lining ring includes one first trapezoidal block 130, one second trapezoidal block 140, at least one first standard block 110, and at least one second standard block 120. One side of the first trapezoidal block 130 is adjacent to the first standard block 110, and the other side is adjacent to the second standard block 120.

[0215] As Figure 18 shown, the present application also provides an assembling method for the third type of lining structure, which is used to assemble the third type of lining ring in the above solution. The method includes:

[0216] S310: Provide one first trapezoidal block 130, one second trapezoidal block 140, at least one first standard block 110, and at least one second standard block 120.

[0217] S320: Assemble the first trapezoidal block 130, with the front end face 103 of the first trapezoidal block 130 facing the previously assembled lining ring.

[0218] S330: Assemble at least one first standard block 110 on the side where the first longitudinal joint end face 105 of the first trapezoidal block 130 is located, with the front end face 103 of the first standard block 110 facing the previously assembled lining ring.

[0219] S340: Assemble at least one second standard block 120 on the side where the second longitudinal joint end face 106 of the first trapezoidal block 130 is located, with the front end face 103 of the second standard block 120 facing the previously assembled lining ring.

[0220] S350: Assemble the second trapezoidal block 140 between the first standard block 110 and the second standard block 120, with the front end face 103 of the second trapezoidal block 140 facing the previously assembled lining ring.

[0221] Among any two adjacent segments, a longitudinal joint is formed between the first longitudinal joint end face 105 of one segment and the second longitudinal joint end face 106 of the other segment.

[0222] Figure 19 This is the developed view of the fourth type of lining ring provided by the embodiments of the present application. As Figure 19As shown, in a possible design, the fourth lining ring includes a plurality of first trapezoidal blocks 130 and a plurality of second trapezoidal blocks 140, and the first trapezoidal blocks 130 and the second trapezoidal blocks 140 are arranged alternately.

[0223] As Figure 20 shown, the present application also provides an assembling method for the fourth lining structure, which is used to assemble the fourth lining ring in the above solution. The method includes:

[0224] S410: Provide a plurality of first trapezoidal blocks 130 and a plurality of second trapezoidal blocks 140.

[0225] S420: Assemble a plurality of first trapezoidal blocks 130, leaving an installation space between adjacent first trapezoidal blocks 130, and the front end face 103 of the first trapezoidal block 130 faces the previously assembled lining ring.

[0226] S430: Insert the second trapezoidal block 140 into the installation space, and the front end face 103 of the second trapezoidal block 140 faces the previously assembled lining ring.

[0227] Wherein, in any two adjacent segments, a longitudinal joint is formed between the first longitudinal joint end face 105 of one segment and the second longitudinal joint end face 106 of the other segment.

[0228] The above solution provides four different prefabricated lining structures and their corresponding assembling methods, all of which can enable the segments in at least one lining ring to move directly into place along the direction parallel to the axis, and can avoid or reduce the damage to the waterproof gasket 200 on the segments, and reduce the possibility of local accumulation of the waterproof gasket 200, reducing the potential safety hazard of waterproofing at the segment joints.

[0229] The embodiment of the present application also provides a lining structure, including a plurality of lining rings, and at least one lining ring includes the segments described in the foregoing embodiments of the present application.

[0230] In summary, the present application provides a segment. The first longitudinal joint end face 105 of the segment is not perpendicular to the front end face 103, and the second longitudinal joint end face 106 is also not perpendicular to the front end face 103. Thus, the segment can move along the axial direction for assembly, and during the movement of the segment, the cooperation between the male insertion member 310 and the female insertion member 320 can be achieved without changing the movement direction, so as to realize the connection between adjacent segments, which is beneficial to the automatic assembly of the lining structure. At the same time, during the segment assembly process, the waterproof gaskets 200 between the segments do not start to be squeezed from the beginning, but start to be squeezed when the assembly process is about to end. Thus, the resistance to the movement of the segments is reduced, the damage to the waterproof gaskets 200 on the segments is avoided or reduced, and the possibility of local accumulation of the waterproof gaskets 200 is reduced, reducing the potential safety hazard of waterproofing at the segment joints.

Claims

1. A pipe segment, characterized in that: include: The segment body comprises an inner camber surface, an outer camber surface, a front end face, a rear end face, a first longitudinal seam end face and a second longitudinal seam end face, wherein the inner camber surface is used to form an inner wall of a lining, the outer camber surface is used to form an outer wall of a lining, the front end face and the rear end face are two end faces parallel to each other along the axial direction of the segment, the first longitudinal seam end face and the second longitudinal seam end face are two opposite end faces in the circumferential direction of the segment body; a first angle α between the first longitudinal seam end face and the front end face is ≠90°, and a second angle β between the second longitudinal seam end face and the front end face is ≠90°; A waterproof sealing pad, provided on the first longitudinal seam end surface and the second longitudinal seam end surface; A connection assembly, the connection assembly includes a socket mother component and a socket son component, one of the socket son component and the socket mother component is arranged on the end surface of the first longitudinal seam, and the other is arranged on the end surface of the second longitudinal seam, the socket mother component has a socket that is adapted to at least part of the socket son component, and the depth direction of the socket is parallel to the axial direction of the pipe segment.

2. The segment according to claim 1, characterized in that: The first angle α is complementary to the second angle β.

3. The segment according to claim 1, characterized in that: The first angle α is equal to the second angle β.

4. The segment according to claim 1, characterized in that: The absolute value of the difference between the first angle α and 90° is between 5° and 22°.

5. The segment according to claim 1, characterized in that: The absolute value of the difference between the second angle β and 90° is between 5° and 22°.

6. The segment according to claim 1, characterized in that: The top surface of the waterproof sealing pad on the end surface of the first longitudinal seam is at least 4 mm higher than the end surface of the first longitudinal seam, and the top surface of the waterproof sealing pad on the end surface of the second longitudinal seam is at least 4 mm higher than the end surface of the second longitudinal seam.

7. The segment according to any one of claims 1 to 6, characterized in that: The socket sub-piece includes a flange section and a web section, the web section is located between the flange section and the tube segment body, the socket sub-piece has a width direction and a thickness direction, the width direction is parallel to the axial direction of the tube segment body, the thickness direction is parallel to the thickness direction of the tube segment body, and in the thickness direction, the size of the flange section is larger than the size of the web section; The socket female part includes an engaging section and a female part connecting section, the female part connecting section is located between the engaging section and the pipe segment body, the socket is provided in the engaging section, the shape of the socket is adapted to the flange section, and a receiving groove is provided on the side of the socket away from the female part connecting section, the receiving groove runs through the side wall of the socket.

8. The tube segment according to claim 7, characterized in that: When the first angle is an acute angle, the socket sub-piece located on the end surface of the first longitudinal seam is configured such that: in the direction from the front end surface to the rear end surface, the thickness dimensions of the flange section and the web section gradually decrease; When the first angle is an obtuse angle, the socket sub-piece located on the end surface of the first longitudinal seam is configured such that: in the direction from the front end surface to the rear end surface, the thickness dimensions of the flange section and the web section gradually increase; When the second angle is an acute angle, the socket sub-piece located on the end surface of the second longitudinal seam is configured such that: in the direction from the front end surface to the rear end surface, the thickness dimensions of the flange section and the web section gradually decrease; When the second angle is an obtuse angle, the socket sub-component located on the end face of the second longitudinal seam is configured such that the dimensions of the flange section and the web section in the thickness direction gradually increase from the front end face to the rear end face.

9. The tube segment according to claim 7, characterized in that: The socket sub-component further comprises a transition section, a sub-component connecting section and a sub-component anchoring section, which are arranged on a side of the web section away from the flange section; The dimensions of the sub-component connecting section in the width direction and the thickness direction are both greater than the dimensions of the web section in the corresponding directions, and the transition section is provided between the web section and the sub-component connecting section to achieve a smooth transition between the web section and the sub-component connecting section; The sub-component anchoring section is arranged on a side of the sub-component connecting section away from the transition section, and the anchoring section is arranged in the pipe segment body to achieve the fixation of the pipe segment body and the socket sub-component.

10. The segment according to claim 9, characterized in that: The flange section, the web section and the sub-component connecting section are coaxially arranged in the width direction.

11. The pipe segment according to any one of claims 1 to 6, characterized in that: The connection components are provided in a plurality of groups, and each group of the connection components comprises a female socket component and a male socket component which are respectively arranged on the end surface of the first longitudinal seam and the end surface of the second longitudinal seam.

12. An assembled lining structure, characterized in that: It comprises a plurality of lining rings, at least one of which is assembled from the segments according to any one of claims 1 to 11, and in the same lining ring, the front end faces of the segments face the same direction.

13. The assembled lining structure according to claim 12, characterized in that: At least one of the lining rings includes a first trapezoidal block, a second trapezoidal block and a plurality of first standard blocks; The first included angle α of the first trapezoidal block is an acute angle, and the second included angle β is an acute angle; The first included angle α of the second trapezoidal block is an obtuse angle, and the second included angle β is an obtuse angle; The first included angle α of the first standard block is an acute angle, and the second included angle β is an obtuse angle; The first trapezoidal block is adjacent to the first standard block on one side and adjacent to the second trapezoidal block on the other side.

14. The assembled lining structure according to claim 12, characterized in that: At least one of the lining rings includes a first trapezoidal block, a second trapezoidal block and a plurality of second standard blocks; The first included angle α of the second standard block is an obtuse angle, and the second included angle β is an acute angle; The first trapezoidal block is adjacent to the second standard block on one side and adjacent to the second trapezoidal block on the other side.

15. The assembled lining structure according to claim 12, characterized in that: At least one of the lining rings includes a first trapezoidal block, a second trapezoidal block and at least one first standard block and at least one second standard block; The first trapezoidal block is adjacent to the first standard block on one side and adjacent to the second standard block on the other side.

16. The assembled lining structure according to claim 12, characterized in that: At least one of the lining rings includes a plurality of first trapezoidal blocks and a plurality of second trapezoidal blocks; The first trapezoidal blocks and the second trapezoidal blocks are arranged alternately.

17. A method for assembling a lining structure, characterized in that: For assembling at least one lining ring in the lining structure according to claim 13, the method comprises: Providing a first trapezoidal block, a second trapezoidal block and a plurality of first standard blocks; Assembling the first trapezoidal block, with the front end of the first trapezoidal block facing the last assembled lining ring; Sequentially assembling a plurality of the first standard blocks on the side where the first longitudinal seam end face of the first trapezoidal block is located, with the front end face of the first standard block facing the last assembled lining ring; Assembling the second trapezoidal block on the side where the second longitudinal seam end face of the first trapezoidal block is located, with the front end face of the second trapezoidal block facing the last assembled lining ring; Among them, in any two adjacent pipe segments, a longitudinal seam is formed between the first longitudinal seam end surface of one pipe segment and the second longitudinal seam end surface of the other pipe segment.

18. A method for assembling a lining structure, characterized in that: For assembling at least one lining ring in the lining structure according to claim 14, the method comprises: Providing a first trapezoidal block, a second trapezoidal block and a plurality of second standard blocks; Assembling the first trapezoidal block, with the front end of the first trapezoidal block facing the last assembled lining ring; Sequentially assembling a plurality of second standard blocks on the side where the second longitudinal seam end face of the first trapezoidal block is located, with the front end face of the second standard block facing the last assembled lining ring; Assembling the second trapezoidal block on the side where the second longitudinal seam end face of the last second standard block is located, with the front end face of the second trapezoidal block facing the last assembled lining ring; Among them, in any two adjacent pipe segments, a longitudinal seam is formed between the first longitudinal seam end surface of one pipe segment and the second longitudinal seam end surface of the other pipe segment.

19. A method for assembling a lining structure, characterized in that: For assembling at least one lining ring in the lining structure according to claim 15, the method comprises: Providing a first trapezoidal block, a second trapezoidal block, at least one first standard block, and at least one second standard block; Assembling the first trapezoidal block, with the front end of the first trapezoidal block facing the last assembled lining ring; Assembling the at least one first standard block on the side where the first longitudinal seam end face of the first trapezoidal block is located, with the front end face of the first standard block facing the last assembled lining ring; Assembling the at least one second standard block on the side where the second longitudinal seam end face of the first trapezoidal block is located, with the front end face of the second standard block facing the last assembled lining ring; Assembling the second trapezoidal block between the first standard block and the second standard block, with the front end of the second trapezoidal block facing the last assembled lining ring; Among them, in any two adjacent pipe segments, a longitudinal seam is formed between the first longitudinal seam end surface of one pipe segment and the second longitudinal seam end surface of the other pipe segment.

20. A method for assembling a lining structure, characterized in that: For assembling at least one lining ring in the lining structure according to claim 16, the method comprises: Providing a plurality of first trapezoidal blocks and a plurality of second trapezoidal blocks; Assembling a plurality of the first trapezoidal blocks, leaving installation spaces between adjacent first trapezoidal blocks, with the front end faces of the first trapezoidal blocks facing the last assembled lining ring; Inserting the second trapezoidal block into the installation space, with the front end of the second trapezoidal block facing the last assembled lining ring; Among them, in any two adjacent pipe segments, a longitudinal seam is formed between the first longitudinal seam end surface of one pipe segment and the second longitudinal seam end surface of the other pipe segment.

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