Pipe piece for bypass channel punching construction in tunnel structure, pipe piece ring set and tunnel structure

Abstract

The utility model provides a duct piece and a duct piece ring set for bypass channel punching construction in a tunnel structure and the tunnel structure. The duct piece comprises a framework, the framework is provided with a notch, and the notch is used for forming at least part of a cutting hole for punching operation; the machinable part is arranged at a position corresponding to the notch; and the pouring object is poured and solidified on the side, facing the interior of the tunnel structure, of the framework and in at least part of the gap of the machinable part. The pipe piece can facilitate punching construction operation of a mechanical method bypass channel. In addition, after the duct pieces are assembled into the duct piece ring group, the structural strength of the duct piece ring group is better guaranteed, and the metal structure is relatively low in material consumption and relatively low in cost.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, specifically to a segment, a segment ring assembly, and a tunnel structure used for drilling holes in a bypass passage in a tunnel structure. Background Technology

[0002] With the continuous development of urban construction, many regions have successively begun to develop subway networks and are paying increasing attention to the development and utilization of urban underground space. In addition, the renovation of urban water supply and drainage systems and the laying of underground utility tunnels are also important aspects of urban construction.

[0003] The above-mentioned urban construction projects all involve tunnel construction. Mechanical tunneling is a commonly used method in tunnel construction, and tunnel lining segments are crucial assembly components used in mechanical tunnel construction. Tunnel lining segments form the inner barrier of the tunnel, resisting soil pressure, groundwater pressure, and other special loads. As the permanent lining structure of the tunnel, they directly affect the overall quality and safety of the tunnel.

[0004] Tunnel construction often involves the construction of side passages. For example, according to the "Metro Design Code", a connecting passage should be provided between two single-track tunnel sections when the continuous length of the tunnel is greater than 600m. The connecting passage is a typical side passage.

[0005] To create a bypass tunnel within a tunnel, holes need to be cut into the tunnel segments at the location of the bypass. Conventional tunnel segments are reinforced concrete structures with high steel density and high concrete strength, making them difficult to cut using tunnel boring machines (TBMs) and thus unsuitable for mechanical bypass excavation. Therefore, providing a tunnel segment design that facilitates bypass drilling is a problem that needs to be solved by those skilled in the art. Utility Model Content

[0006] Therefore, this utility model provides a segment, a segment ring assembly, and a tunnel structure for drilling in a bypass in a tunnel structure, in order to solve the technical problem that segments are not suitable for mechanical bypass excavation operations in the prior art.

[0007] To address the aforementioned problems, this utility model provides a segment for drilling construction of a bypass passage in a tunnel structure. The segment includes: a skeleton having a notch for forming at least a portion of a cutting hole for drilling operations; a cuttable portion disposed at a corresponding position of the notch; and a cast-in-place material cast and cured in the side of the skeleton facing the interior of the tunnel structure and in at least a portion of the gap of the cuttable portion.

[0008] In any of the above technical solutions, the skeleton includes: a back plate having a notch for forming a notch; and ribs connected to the surface of the back plate; wherein the casting is cast and cured on the side of the back plate where the ribs are provided.

[0009] In any of the above technical solutions, the frame further includes: a partition, which is connected to at least one of the back plate or the rib plate and is arranged around the notch; wherein the partition is provided with an opening for the cuttable part to pass through.

[0010] In any of the above technical solutions, the back plate has a pouring port covered by a cover plate; and / or the frame further includes: studs, which are provided on the surface of the back plate on the side where the ribs are provided; and / or studs are provided on the ribs.

[0011] In any of the above technical solutions, the ribs include: circumferential ribs, which are arranged at intervals around the circumference of the tunnel structure; and transverse ribs, which intersect with the circumferential ribs to jointly enclose and define at least one cavity; wherein the casting is poured and solidified in at least a portion of the cavity.

[0012] In any of the above technical solutions, the rib plate includes: multiple circumferential rib plates, which are arranged at intervals along the circumference of the tunnel structure; multiple transverse rib plates, which intersect with the multiple circumferential rib plates to jointly enclose and define multiple cavities; wherein, at least a portion of the cavities are provided with studs, which are connected to the back plate and / or the rib plates, and the back plate has multiple spaced pouring ports, at least a portion of which are connected to the cavities.

[0013] In any of the above technical solutions, a lifting arm hole is formed on the cast-in-place material; and / or a hand hole is formed on the cast-in-place material; and / or a tenon and mortise are formed on the cast-in-place material; and / or a sealing groove is formed on the cast-in-place material.

[0014] In any of the above technical solutions, the notch is formed as a rectangle, a near-rectangular shape, a circle, a near-circular shape, or a fan shape; and / or the skeleton is a metal frame; and / or the skeleton also includes ribs penetrating the casting; and / or the machinable part is a machinable fiber, the material of which is at least one or a combination of glass fiber, basalt fiber, carbon fiber, and metal fiber.

[0015] This utility model also provides a segment ring assembly, which includes segments as described in any of the above technical solutions.

[0016] This utility model also provides a tunnel structure, which includes the segment ring assembly of any of the above technical solutions.

[0017] Beneficial effects

[0018] The tunnel segment of this invention mainly comprises a skeleton, a machinable portion, and a cast-in-place material. The skeleton, as the main structure of the segment, provides high structural strength. The gaps in the skeleton are filled by the machinable portion and the cast-in-place material, making the gaps in the segment relatively easy to cut. This allows tunnel boring machines (TBMs) and other equipment to more easily cut and drill into the segment, thereby improving construction efficiency, protecting the equipment's cutting head, and preventing the segment from breaking or being damaged by violent excavation and drilling. Furthermore, after the segments are assembled into rings, the skeleton fits against the tunnel soil, while the cast-in-place material faces inwards as a lining structure. The skeleton structure, with its higher strength than the cast-in-place material, can better withstand the pressure from the soil, thus ensuring greater structural strength. Compared to steel box segments where the main structure is entirely machined from pure metal, the segments of this invention use a sheet-like skeleton for load-bearing and are then filled with concrete. This not only ensures structural strength but also reduces the amount of metal material used, resulting in relatively lower costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of multiple segments of this utility model assembled together (rectangular hole, already cast, main view direction).

[0020] Figure 2 This is a schematic diagram of multiple segments of this utility model assembled together (rectangular hole, already cast, rear view).

[0021] Figure 3 This is a schematic diagram of multiple segments of this utility model assembled together (rectangular holes, already cast, three-dimensional). Figure 1 );

[0022] Figure 4 This is a schematic diagram of multiple segments of this utility model assembled together (rectangular holes, already cast, three-dimensional). Figure 2 );

[0023] Figure 5 This is a schematic diagram of multiple segments of this utility model assembled together (rectangular hole, already cast, right view).

[0024] Figure 6 This is a schematic diagram of multiple skeletons of this utility model assembled together (rectangular holes, uncast, front view).

[0025] Figure 7 This is a schematic diagram of multiple skeletons of this utility model assembled (rectangular holes, uncast, rear view).

[0026] Figure 8 This is a schematic diagram of multiple skeletons of this utility model assembled (rectangular holes, uncast, right view).

[0027] Figure 9A schematic diagram of multiple assembled skeletons of this utility model (rectangular holes, uncast, three-dimensional view);

[0028] Figure 10 This is a schematic diagram of multiple skeletons and machinable parts of this utility model after they are installed together (rectangular holes, uncast, front view).

[0029] Figure 11 This is a schematic diagram of multiple skeletons and machinable parts of this utility model after they are installed together (rectangular holes, uncast, rear view).

[0030] Figure 12 This is a schematic diagram showing the interconnection of multiple frames and machinable parts of this utility model (rectangular holes, uncast, three-dimensional). Figure 1 );

[0031] Figure 13 This is a schematic diagram showing the interconnection of multiple frames and machinable parts of this utility model (rectangular holes, uncast, three-dimensional). Figure 2 );

[0032] Figure 14 This is a schematic diagram of multiple segments of this utility model assembled together (circular holes, already cast, main view).

[0033] Figure 15 This is a schematic diagram of multiple segments of this utility model assembled together (circular holes, already cast, three-dimensional view).

[0034] Explanation of reference numerals in the attached figures:

[0035] Segment: 100; Frame: 110; Notch: 110a; Cast-in-place: 110b; Chamber: 110c; Back plate: 111; Rib: 112; Circumferential rib: 1121; Transverse rib: 1122; Partition: 113; Opening: 113a; Stud: 114; Machinable section: 120; Cast-in-place material: 130; Lifting arm hole: 130a; Hand hole: 130b; Sealing groove: 131; Cutting hole: 200. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] This invention provides a segment for drilling holes in a side passage in a tunnel structure, which forms part of a segment ring assembly. During tunnel construction, tunneling equipment, such as a tunnel boring machine (TBM), excavates the tunnel and carries, transports, and grabs segments, assembling them along the tunnel's inner wall. Multiple segments are joined circumferentially along the TBM to form a ring-shaped segment assembly, and multiple segment ring assemblies are joined axially along the TBM, i.e., the tunnel's extension direction, to form the tunnel's inner wall. The construction of side passages is frequently involved in tunnel construction; for example, connecting passages in subway networks are typical side passages. If a side passage is to be constructed in a tunnel, holes need to be drilled in the segments at the location of the side passage, and further excavation along these holes forms the side passage. In tunnel structures, segments that need to be drilled for side passage construction are called "special segments." The segment provided by this invention is precisely a "special segment" for drilling holes in side passages.

[0038] Drilling of the aforementioned "special tunnel segments" can generally be carried out by tunneling equipment or manually. Regardless of the drilling method, the existing technology faces the following problems: conventional tunnel segments are reinforced concrete structures with high steel reinforcement density and high concrete strength, making it difficult to use equipment such as tunnel boring machines for cutting operations. Manual excavation and drilling are also not easy to carry out, and drilling can easily cause the "special tunnel segments" to break or be damaged.

[0039] One of the objectives of this invention is to provide a segment for easy bypass drilling construction, enabling tunnel boring machines and other equipment to perform cutting and drilling operations more easily, thereby improving construction efficiency, protecting the equipment cutter head, and preventing the segment from breaking or being damaged due to violent excavation and drilling.

[0040] like Figures 1 to 5 As shown, multiple segments 100 of this invention can be joined together to form a single unit, serving as a "special segment". A hole 200 can then be drilled in the central area of ​​this "special segment". The shape and size of the cutting hole 200 can be selected and adjusted according to the size and shape of the bypass channel. For example, the cutting hole 200 can be circular, elliptical, rectangular, rectangular-like with rounded corners, polygonal, etc. Figure 14 and Figure 15 This demonstrates the case where the cutting hole 200 is circular.

[0041] In addition to using multiple segments 100 of this invention to be assembled together to form a "special segment", a single segment of this invention can also be used directly as a "special segment". In this case, it is necessary to drill holes in the central area of ​​the segment of this invention to form cutting holes.

[0042] like Figures 6 to 9As shown, the segment 100 of this utility model includes a skeleton 110. The skeleton 110 is the main structure of the segment 100, which functions as a skeleton to provide structural strength for the segment 100. Preferably, the skeleton 110 is a metal frame.

[0043] like Figure 6 and Figure 7 As shown, the frame 110 has a notch 110a. The position and size of the notch 110a can be determined according to the position of the segment 100 during splicing and the size requirements of the bypass channel. Preferably, the notch 110a is formed as a rectangle, a near-rectangular shape, a circle, a near-circular shape, or a fan shape. Figure 1 The case where both the cutting hole 200 and the notch 110a are rectangular is shown. Figure 14 and Figure 15 This illustrates a case where the cutting hole 200 is circular in shape, and at least a portion of the edge of the notch 110a is arc-shaped. Exemplarily, two, four, six, or eight segments 100 can be joined together to form a single unit, serving as a "special segment." Figure 1 and Figure 2 Taking a structure consisting of 6 segments (100mm each) joined together as an example: for the segments joined together... Figure 1 and Figure 2 The four segments 100 at the left and right corners of the frame 110 have corresponding notches 110a shaped as elongated notches located at the edges; for those assembled into Figure 1 and Figure 2 For the two segments 100 in the middle position, the area of ​​the gap 110a of the corresponding skeleton 110 is about half of the area of ​​the entire skeleton 110, and it is formed into a square or rectangle.

[0044] The function of notch 110a is to form at least a portion of the cutting hole 200 for the drilling operation. For example... Figure 3 and Figure 4 As shown, after the six segments 100 are assembled together, the notches 110a of each segment 100 together form a complete rectangle. After the drilling operation, the position of this rectangle is as shown. Figure 6 , Figure 7 and Figure 9 The cutting hole is 200. It is understandable that... Figure 6 , Figure 7 and Figure 9 The cutting hole 200 in the text only indicates the location of the cutting hole 200. In fact, the cutting hole 200 is to be drilled by tunneling equipment such as a tunnel boring machine after the segments are cast, demolded, and assembled.

[0045] like Figures 10 to 13As shown, to facilitate cutting and drilling of the segment 100, the segment 100 also includes a machinable portion 120, which fills the corresponding position of the notch 110a. It should be noted that the machinable portion 120 filling the corresponding position of the notch 110a means that the machinable portion 120 can fill exactly where the notch 110a is located, or it can fill a position above or below the notch 110a corresponding to it. Compared to the skeleton 110, the machinable portion 120 has lower strength and hardness, and is therefore easier to cut.

[0046] The cuttable part 120 is specifically an intertwined fiber cage or fiber strip. The cages or strips can be arranged transversely, longitudinally, or crisscrossed. The cages or strips can be arranged in an orderly manner or intertwined randomly. This is understandable. Figures 9 to 13 The machinable portion 120 shown is schematic and does not necessarily represent an interlaced mesh structure. A portion of the rib cages or ribs in the machinable portion 120 are inserted into the skeleton 110. Preferably, the machinable portion 120 is a machinable fiber, and the material of the machinable fiber is at least one or a combination of glass fiber, basalt fiber, carbon fiber, and metal fiber.

[0047] In addition to the frame 110 and the cuttable portion 120, the segment 100 of this utility model also includes a casting 130, which is cast and solidified in the side of the frame 110 facing the interior of the tunnel structure and in at least part of the gaps in the cuttable portion 120.

[0048] It is understood that the cast-in-place 130 is obtained by casting materials such as concrete or cement. In the prior art, the cast-in-place is an important component of the tunnel segment, which not only provides structural strength to the tunnel segment but also provides waterproofing and moisture protection. In the tunnel segment 100 of this utility model, in addition to the above-mentioned functions, the cast-in-place 130 can also fix the machinable portion 120 to the corresponding position of the notch 110a of the skeleton 110, so that the skeleton 110, the machinable portion 120, and the cast-in-place 130 form a whole. As mentioned above, the machinable portion 120 is specifically intertwined fibers or ribs, and the cast-in-place 130 can fill the gaps in the rib cage or ribs. The hybrid structure of the machinable portion 120 and the cast-in-place 130 not only improves the structural strength of the tunnel segment 100 at the cutting position but also makes it relatively easy to cut and drill holes at the cutting position of the tunnel segment 100.

[0049] In summary, by providing a hybrid structure consisting of a cutable part 120 and a cast-in-place material 130 on the segment 100, this utility model makes it relatively easy to cut the notch 110a of the segment 100. This allows equipment such as tunnel boring machines to more easily cut and drill holes in the segment 100, thereby improving construction efficiency, protecting the equipment cutter head, and preventing the segment 100 from breaking or being damaged due to violent excavation and drilling.

[0050] Furthermore, if the non-cutting portion of the segment is set as a reinforcing cage, and the portion to be cut is set as a fiber cage, such as glass fiber or carbon fiber, and the reinforcing cage and fiber cage are bound together before pouring concrete, a segment with a specific cuttable portion can also be obtained. However, the above technical solution has the problem that since both the non-cutting portion and the portion to be cut are reinforcing cage structures, it is difficult to directly insert them together, binding them together is inconvenient, and the operation is complex, reducing construction efficiency. In contrast, this utility model sets the non-cutting portion of the segment 100 as a skeleton 110. The structural strength of the skeleton 110 is superior to that of the reinforcing cage structure, and it is easy to process. It only needs to be machined to obtain a skeleton 110 with more ideal mechanical strength and processing accuracy, and then placed in a mold for casting to obtain the segment 100.

[0051] It is particularly important to note that this invention allows the cast-in-place 130 to be cast and solidified on the side of the frame 110 facing the interior of the tunnel structure. In other words, for the pipe 100 of this invention, its frame 110 is attached to the soil layer of the tunnel structure, while its cast-in-place 130 faces the interior of the tunnel structure. Therefore, after the pipe segment 100 of this invention is assembled into a ring assembly, its frame 110 is attached to the soil layer of the tunnel, and its cast-in-place 130 faces the interior of the tunnel structure as a lining structure. The frame structure 110, with its higher strength than the cast-in-place 130, can better withstand the pressure from the soil layer. Therefore, the pipe segment 100 of this invention has better structural strength. Compared to steel box pipe segments whose main structure is entirely machined from pure metal, the pipe segment 100 of this invention uses a sheet-like frame 110 for load-bearing and is cast with concrete. This not only ensures structural strength but also uses less metal material, resulting in relatively lower costs. Figure 7 As shown, in some embodiments of the present invention, the skeleton 110 includes: a back plate 111, the back plate 111 having a notch for forming a notch 110a; a rib 112, the rib 112 being connected to the surface of the back plate 111; wherein, the casting 130 is cast and solidified on the side of the back plate 111 where the rib 112 is provided.

[0052] It is understood that the back panel 111 is a curved plate with a notch at the edge. The shape of the notch is consistent with the notch 110a. The specific shape and size can be selected and adjusted according to the size and shape of the bypass channel.

[0053] Ribs 112 protrude outward from the back surface of the back plate 111. The back plate 111 and ribs 112 can be connected to each other by welding, or directly machined by a machine tool, or die-cast. Ribs 112 enhance the strength of the frame 110 and the entire segment 100. In particular, the ribs 112 enable the frame 110 to withstand greater pressure from the soil. Preferably, the frame 110 also includes reinforcing bars (not shown) penetrating the casting 130. The reinforcing bars may be steel bars, which are wound around the side of the back plate 111 where the ribs 112 are located.

[0054] Preferably, such as Figure 7 and Figure 13 As shown, the rib 112 includes: circumferential ribs 1121, which are arranged at intervals along the circumference of the tunnel structure; and transverse ribs 1122, which intersect with the circumferential ribs 1121 to jointly enclose and define at least one cavity 110c; wherein, the casting 130 is cast and solidified in at least a portion of the cavity 110c.

[0055] The number of circumferential ribs 1121 and transverse ribs 1122 can each be one or more. For example... Figure 13 As shown, it can be understood that the cavity 110c can be a completely enclosed cavity that is sealed on all four sides, or a semi-enclosed cavity that is not completely sealed. When there is only one circumferential rib 1121 and one transverse rib 1122, four semi-enclosed cavities are formed on the back plate 111. When there are two circumferential ribs 1121 and two transverse ribs 1122, one enclosed cavity located in the central region and multiple semi-enclosed cavities surrounding this enclosed cavity are formed on the back plate 111. When there are two or more circumferential ribs 1121 and two or more transverse ribs 1122, multiple enclosed cavities located in the central region and multiple semi-enclosed cavities surrounding these enclosed cavities are formed on the back plate 111.

[0056] The cavity 110c is designed to facilitate the filling of the cast-in-place material 130, thereby enhancing the tightness of the connection between the frame 110 and the cast-in-place material 130, and giving the segment 100 better strength.

[0057] like Figure 9As shown, in some embodiments of this utility model, the frame 110 further includes a partition 113, which is connected to at least one of the back plate 111 or the rib plate 112 and is disposed around the notch 110a; wherein, the partition 113 has an opening 113a for the machinable part 120 to pass through. Preferably, the partition 113 is welded to the back plate 111. The function of the partition 113 is to separate the area where the notch 110a is located from other areas of the back plate 111. Furthermore, the opening 113a provided on the partition 113 allows the machinable part 120 to pass through and be initially fixed.

[0058] The specific shape of the opening 113a can be any shape, such as a round hole, a square hole, or a polygonal hole, as long as the cuttable part 120 can be inserted into it. There are multiple openings 113a, which are distributed on the partition 113 at the edge of the notch 110a. The multiple openings 113a can be arranged in an orderly and equidistant manner or in a disordered and non-equidistant manner.

[0059] like Figure 6 and Figure 7 As shown, to facilitate pouring concrete onto the side of the frame 110 facing the interior of the tunnel structure, the back plate 111 of this invention has pouring ports 110b. Preferably, there are multiple pouring ports 110b. The pouring ports 110b can be arranged at intervals along a straight line on the frame 110. Providing pouring ports 110b on the frame 110 facilitates the pouring of concrete into the non-cuttable areas of the segment 100 to form part of the cast-in-place 130. The pouring ports 110b are mainly used for large-area pouring before the excavation of the main tunnel and connecting passages.

[0060] Before pouring, the machinable portion 120 is inserted into the frame 110 to initially connect the two. During pouring, the frame 110 with the side having the ribs 112 facing down is placed into the mold. Grout is injected from top to bottom into the side of the frame 110 with the ribs 112 through the pouring port 110b. Concrete can be directly poured into the parts with the machinable portion 120; after the concrete dries and sets to form the casting 130, it is demolded to obtain the segment 100 of this utility model.

[0061] Preferably, the pouring opening 110b is covered with a cover plate (not shown in the figure). When there are multiple pouring openings 110b, each pouring opening 110b is covered with a cover plate at its corresponding position. After grouting and demolding are completed, the cover plate is welded to the corresponding position of the pouring opening 110b. The shape and size of the cover plate correspond to the pouring opening 110b, and may be slightly larger than the pouring opening 110b. The function of the cover plate is to seal the pouring opening 110b, preventing water seepage or leakage of the tunnel segment 100 inside the tunnel. Therefore, since the back plate 111 can cover and shield the soil layer of the tunnel inner wall over a large area, and the pouring opening 110b is sealed by the cover plate, the structural strength of the tunnel segment 100 of this invention can be further improved.

[0062] like Figure 9 and Figure 11 As shown, the frame 110 further includes: studs 114, which are disposed on the surface of the back plate 111 on the side where the ribs 112 are provided; and / or studs 114 are disposed on the ribs 112. The studs 114 are used to enhance the tightness of the connection between the frame 110 and the casting 130. Preferably, there are multiple studs 114, which are distributed at intervals on both the back plate 111 and the ribs 112.

[0063] In some embodiments of this utility model, the rib plate 112 includes: a plurality of circumferential rib plates 1121 and a plurality of transverse rib plates 1122. The plurality of circumferential rib plates 1121 are arranged at intervals along the circumference of the tunnel structure, and the plurality of transverse rib plates 1122 intersect with the plurality of circumferential rib plates 1121. Through their intersecting, they jointly enclose and define a plurality of cavities 110c. At least a portion of the cavities 110c are provided with studs 114, which are connected to the back plate 111 and / or the rib plates 112. The back plate 111 also has a plurality of spaced-apart pouring ports 110b, at least a portion of which communicate with the cavities 110c.

[0064] In the above scheme, since the pouring port 110b is connected to the cavity 110c, grout can be injected into the cavity 110c through the pouring port 110b, so that the cast material 130 fills the cavity 110c to enhance the strength of the frame 110. Since the cavity 110c is provided with studs 114, the cast material 130 in the cavity 110c can achieve a tighter connection with the frame 110 through the studs 114.

[0065] Preferably, such as Figure 2 As shown, the segment 100 also has a lifting arm hole 130a provided on the cast-in-place 130. The lifting arm hole 130a is used for hoisting the segment 100 for transporting and moving the segment 100. The lifting arm hole 130a can be formed on the cast-in-place 130 by designing the mold.

[0066] Preferably, such as Figure 2 As shown, the segment 100 also has a handhole 130b provided on the cast-in-place 130. Multiple segments can be assembled to form annular segment rings, and multiple segment rings can be assembled to form a tunnel structure. Since the connection method between segments in the same segment ring group or between different segment ring groups is to insert a connector, such as a stud, into the connection hole of each segment and then fix it, the handhole 130b facilitates the operation of the operator to insert the stud connector into the segment 100. Through the design of the mold, the handhole 130b can be formed on the cast-in-place 130.

[0067] Preferably, a tenon and countersunk tenon are also formed on the cast-in-place 130. Specifically, the tenon and countersunk tenon are recesses and / or protrusions formed on the sidewalls surrounding the segment 100. The tenon and countersunk tenon facilitates the tenon-and-counter jointing of the segment 100 with adjacent segments, thereby improving the strength of the segment ring assembly or tunnel structure. Forming the tenon and countersunk tenon on the cast-in-place 130 also facilitates the processing and manufacturing of the segment 100. Specifically, compared to cutting the tenon and countersunk tenon onto the frame 110, if the tenon and countersunk tenon are formed on the cast-in-place 130 through mold design, the tenon and countersunk tenon structure does not require machine tool processing, resulting in faster forming and relatively lower cost.

[0068] Preferably, such as Figure 3 As shown, a sealing groove 131 is formed on the cast-in-place 130. Specifically, the sealing groove 131 is a strip-shaped groove formed on the outer edge of the outer wall of the segment 100, which is used to install a sealing strip to improve the waterproof sealing effect of the segment 100 of this utility model.

[0069] It should be noted that the tenon, sealing groove 131, lifting arm hole 130a, and hand hole 130b of the segment 100 of this utility model are all formed on the casting 130. In other words, the above structures are all formed by casting process through mold design. Compared with the structure formed by cutting metal (e.g., steel plate), casting is more suitable for mass production, its cost is relatively low, and the structure formed by casting 130 will not rust under long-term storage. This utility model also provides a segment ring assembly, which includes the segment 100 as described in any of the above technical solutions, and therefore has all the beneficial effects of the segment 100 as described in any of the above technical solutions, which will not be repeated here.

[0070] This utility model also provides a tunnel structure including the aforementioned segment ring assembly, thus possessing all the beneficial effects of the aforementioned segment ring assembly, which will not be repeated here. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A type of tunnel segment used for drilling holes in a bypass passage in a tunnel structure, characterized in that, The segment (100) includes: A skeleton (110) having a notch (110a) for forming at least a portion of a cutting hole (200) for a drilling operation; A machinable portion (120) is provided at a corresponding position of the notch (110a); Casting material (130) is cast and solidified in the side of the frame (110) facing the interior of the tunnel structure and in at least a portion of the gaps in the cuttable portion (120).

2. The segment for bypass drilling construction in a tunnel structure according to claim 1, characterized in that, The skeleton (110) includes: A back plate (111) having a notch for forming the notch (110a); Rib plate (112), the rib plate (112) being connected to the surface of the back plate (111); The casting (130) is cast and solidified on the side of the back plate (111) where the rib (112) is located.

3. The segment for bypass drilling construction in a tunnel structure according to claim 2, characterized in that, The skeleton (110) also includes: A partition (113) is connected to at least one of a back plate (111) or a rib (112) and is disposed around the notch (110a); The partition (113) is provided with an opening (113a) through which the cuttable part (120) passes.

4. The segment for bypass tunnel drilling construction according to claim 2, characterized in that, The back plate (111) has a pouring port (110b), which is covered by a cover plate; and / or The back plate (111) has a pouring port (110b), which is covered with a cover plate; and / or The frame (110) further includes: a stud (114) disposed on the surface of the back plate (111) on the side where the rib (112) is disposed; and / or the stud (114) is disposed on the rib (112).

5. The segment for bypass drilling construction in a tunnel structure according to claim 2, characterized in that, The rib (112) includes: Circumferential ribs (1121) are arranged at circumferential intervals along the tunnel structure; A transverse rib (1122) intersects with the circumferential rib (1121) to jointly enclose and define at least one cavity (110c). The casting (130) is cast and solidified in at least a portion of the cavity (110c).

6. The segment for bypass drilling construction in a tunnel structure according to claim 2, characterized in that, The rib (112) includes: Multiple circumferential ribs (1121) are arranged at circumferential intervals along the tunnel structure; Multiple transverse ribs (1122) intersect with multiple circumferential ribs (1121) to collectively enclose and define multiple cavities (110c). In this embodiment, at least a portion of the cavity (110c) is provided with studs (114), the studs (114) being connected to the back plate (111) and / or the rib plate (112), the back plate (111) having a plurality of spaced pouring ports (110b), at least a portion of the pouring ports (110b) being in communication with the cavity (110c).

7. The segment used for drilling in a bypass passage in a tunnel structure according to any one of claims 1 to 6, characterized in that, A lifting arm hole (130a) is formed on the cast-in-place material (130); and / or A handhole (130b) is formed on the cast-in-place (130); and / or A tenon and mortise are formed on the cast-in-place material (130); and / or A sealing groove (131) is formed on the cast-in-place material (130).

8. The segment used for drilling in a bypass passage in a tunnel structure according to any one of claims 1 to 6, characterized in that, The notch (110a) is formed in the form of a rectangle, a near-rectangular shape, a circle, a near-circular shape, or a fan shape; and / or The skeleton (110) is a metal frame; and / or The skeleton (110) also includes reinforcing bars that penetrate the cast-in-place (130); and / or The cuttable part (120) is a cuttable fiber, and the material of the cuttable fiber is at least one or a combination of glass fiber, basalt fiber, carbon fiber, and metal fiber.

9. A segment ring assembly, characterized in that, The segment ring assembly includes segments used for bypass drilling construction in tunnel structures as described in any one of claims 1 to 8.

10. A tunnel structure, characterized in that, The tunnel structure includes the segment ring assembly as described in claim 9.

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