Wing-shaped structure duct piece and assembly type lining structure

Abstract

The invention provides a wing-shaped structure duct piece and an assembly type lining structure, and relates to the technical field of shield tunnel and assembly type vertical shaft engineering, the wing-shaped structure duct piece comprises a first piece body and a second piece body, the first piece body and the second piece body are integrally connected in the first direction, and the lengths of the first piece body and the second piece body in the first direction are equal; the length of the first sheet body in the first circumferential direction is greater than that of the second sheet body; the end face, in the first circumferential direction, of the first sheet body can be connected with the end face, in the first circumferential direction, of the second sheet body in a matched mode. The top end face of the first sheet body can be connected with the bottom end faces of the first sheet body and the second sheet body in an inserted mode in the first direction. After the wing-shaped structure duct pieces are spliced, no through seam is generated in the circumferential direction and the longitudinal direction, meanwhile, in the splicing process, insertion connection is adopted in the first direction, end faces of the first piece bodies and the second piece bodies of the different wing-shaped structure duct pieces are connected in a matched mode in the first circumferential direction, and compared with a traditional bolt connection mode, the splicing process is simpler, and the splicing efficiency is improved. The construction efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of shield tunnels and prefabricated shaft engineering, and particularly relates to a segment with a wing-shaped structure and a prefabricated lining structure. Background Art

[0002] In recent years, with the continuous development of construction equipment technology in China, industrialized engineering construction using factory precast segment structures for on-site assembly construction, such as shield tunnels and prefabricated shafts, has become increasingly common. Currently, rectangular, trapezoidal and other quadrilateral segments are commonly used in shield tunnels and prefabricated shafts. The circumferential bolts and longitudinal bolts are respectively used for circumferential and longitudinal joint connections between segment blocks. The segment assembly connection process is cumbersome, the construction efficiency is low, the assembly accuracy is poor, and the circumferential joints of the assembled segments are through joints, resulting in poor longitudinal stiffness and integrity of the structure. Summary of the Invention

[0003] The object of the present invention is to address the above problems and provide a segment with a wing-shaped structure and a prefabricated lining structure.

[0004] In a first aspect, the present invention provides a segment with a wing-shaped structure, which includes a first sheet body and a second sheet body. The first sheet body and the second sheet body are integrally connected along a first direction and have equal lengths in the first direction. The length of the first sheet body in a first circumferential direction is greater than the length of the second sheet body, and the first circumferential direction is perpendicular to the first direction; the end surface of the first sheet body along the first circumferential direction can be mutually and matchingly connected with the end surface of the second sheet body along the first circumferential direction, and the top end surface of the first sheet body can be inserted and connected with the bottom end surfaces of the first sheet body and the second sheet body along the first direction.

[0005] According to the technical solution provided by the present invention, the segment with a wing-shaped structure is an axisymmetric structure.

[0006] According to the technical solution provided by the present invention, there is a first included angle between the two side end surfaces of the first sheet body along the first circumferential direction and the first direction, and there is a second included angle between the two side end surfaces of the second sheet body along the first circumferential direction and the first direction. The first included angle and the second included angle are of the same size.

[0007] According to the technical solution provided by the present invention, the opening direction of the first included angle faces the side of the second sheet body, and the opening direction of the second included angle faces the side of the first sheet body.

[0008] According to the technical solution provided by the present invention, the angle size of the first included angle is 8° - 15°.

[0009] According to the technical solution provided by the present invention, both end faces of the first sheet body along the first circumferential direction are provided with concave tenon parts, both end faces of the second sheet body along the first circumferential direction are provided with convex tenon parts, and the concave tenon parts and the convex tenon parts can be matched and connected with each other.

[0010] According to the technical solution provided by the present invention, a plurality of insertion holes are formed in the top end face of the first sheet body, and insertion members corresponding to the plurality of insertion holes are provided on the bottom end faces of the first sheet body and the second sheet body, and the insertion members can be inserted and fixed with the insertion holes.

[0011] According to the technical solution provided by the present invention, a sealing groove is formed in the circumferential end face of the wing-shaped segment, and the sealing groove is used for arranging a sealing gasket.

[0012] In a second aspect, the present invention provides an assembled lining structure, including a wing-shaped segment as described above. A plurality of the wing-shaped segments are equidistantly distributed along the first circumferential direction. A connection notch is formed between the first sheet bodies of two adjacent wing-shaped segments. The second sheet bodies of the wing-shaped segments with the same number as the connection notches are respectively connected to the plurality of connection notches to form a segment ring, and a plurality of the segment rings are sequentially connected along the first direction to form the assembled lining structure.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides a wing-shaped segment and an assembled lining structure. The wing-shaped segment includes a first sheet body and a second sheet body. The first sheet body and the second sheet body are integrally connected along a first direction, and their lengths in the first direction are equal. The length of the first sheet body in a first circumferential direction is greater than that of the second sheet body, and the first circumferential direction is perpendicular to the first direction. The end face of the first sheet body along the first circumferential direction and the end face of the second sheet body along the first circumferential direction can be mutually matched and connected. The top end face of the first sheet body can be inserted and connected with the bottom end faces of the first sheet body and the second sheet body along the first direction. By arranging a plurality of first groups of wing-shaped segments at equal intervals along the first circumferential direction, a connection notch is formed between the first sheet bodies of two adjacent wing-shaped segments. The second sheet bodies of the second group of wing-shaped segments with the same number as the connection notches are sequentially placed at the connection notches along the first direction, so that the second group of wing-shaped segments can be respectively fixed to two adjacent wing-shaped segments of the first group, and the two groups of wing-shaped segments are spliced into a segment ring. A plurality of segment rings are assembled into a lining structure along the first direction. The lining structure assembled in the above manner will not generate continuous joints in the circumferential and longitudinal directions. The end faces of each segment in the circumferential and longitudinal directions can be mutually engaged through corresponding connection structures, so that the connection strength and overall stability of the lining structure in the circumferential and longitudinal directions are improved. At the same time, during the assembly process, the connection is made by insertion in the first direction, and in the first circumferential direction, the end faces of the first sheet body and the second sheet body of different wing-shaped segments are matched and connected. Compared with the traditional bolt connection method, the wing-shaped segments of the present invention can automatically complete the connection during assembly, without leaving connection holes or grooves on the inner and outer surfaces of the segments. The construction process is simple, the degree of mechanization is high, and the structural integrity and waterproof performance are good.

[0014] It should be understood that the description of technical features, technical solutions, beneficial effects or similar languages in the present invention does not imply that all features and advantages can be achieved in any single embodiment. On the contrary, it can be understood that the description of features or beneficial effects means that at least one embodiment includes specific technical features, technical solutions or beneficial effects. Therefore, the description of technical features, technical solutions or beneficial effects in this specification does not necessarily refer to the same embodiment. Furthermore, the technical features, technical solutions and beneficial effects described in this embodiment can be combined in any appropriate manner. Those skilled in the art will understand that an embodiment can be implemented without one or more specific technical features, technical solutions or beneficial effects of a specific embodiment. In other embodiments, additional technical features and beneficial effects can also be identified in specific embodiments that do not embody all embodiments. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 Schematic diagram of a segment with a wing-shaped structure provided in Embodiment 1 of the present invention; Figure 2 Another schematic diagram of a segment with a wing-shaped structure provided in Embodiment 1 of the present invention; Figure 3 Schematic diagram of an assembled lining structure provided in Embodiment 2 of the present invention; Figure 4 Planar unfolded structure diagram of an assembled lining structure provided in Embodiment 2 of the present invention.

[0017] The text markings in the figure are represented as: 1. Segment with a wing-shaped structure; 2. Connection notch; 11. First sheet; 12. Second sheet; 13. Sealing groove; 111. Concave tenon part; 112. Insertion hole; 121. Convex tenon part; 122. Insertion piece. Detailed implementation manners

[0018] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present invention. Specifically, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those clearly listed steps or units, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0020] Embodiment 1 As mentioned in the background art, to solve the problems existing in the prior art, this embodiment provides a segment with a wing-shaped structure. The segment with a wing-shaped structure 1 includes a first sheet body 11 and a second sheet body 12. The first sheet body 11 and the second sheet body 12 are integrally connected along a first direction and have the same length in the first direction. The length of the first sheet body 11 in a first circumferential direction is greater than the length of the second sheet body 12, and the first circumferential direction is perpendicular to the first direction. The end face of the first sheet body 11 along the first circumferential direction can be connected to the end face of the second sheet body 12 along the first circumferential direction in a matching manner, and the top end face of the first sheet body 11 can be inserted and connected to the bottom end faces of the first sheet body 11 and the second sheet body 12 along the first direction.

[0021] As Figure 1 and Figure 2 shown, the first direction is Figure 1 the up-down direction in

[0022] i.e., the axial direction of the tunnel formed after splicing multiple segments. The first circumferential direction is the circumferential direction of the tunnel. Both the first sheet body 11 and the second sheet body 12 are arc-shaped structures, and their respective plane expansion figures are quadrilaterals. They are integrally formed along the axial direction (i.e., the first direction). The lengths of the first sheet body 11 and the second sheet body 12 along the axial direction are equal, and the length of the first sheet body 11 along the circumferential direction is greater than the length of the second sheet body 12. Preferably, the first sheet body 11 includes a main body part and wing-shaped parts connected to both ends of the main body part in the circumferential direction. The length of the second sheet body 12 is twice the length of one wing-shaped part. The end face shapes of the first sheet body 11 and the second sheet body 12 along the circumferential direction (i.e., the first circumferential direction) match each other, and the circumferential end faces of different segments with wing-shaped structures can be connected to each other. At the same time, the bottom end face of the segment with a wing-shaped structure 1 can be inserted and matched with the top end face of another segment with a wing-shaped structure 1. Figure 3 During assembly, a plurality of segments with wing-shaped structures 1 in the first group are evenly distributed along the circumferential direction. A connection notch 2 is formed between the first sheet bodies 11 of two adjacent segments with wing-shaped structures 1. A second group of segments with wing-shaped structures 1 having the same number as the connection notch 2 are also evenly arranged along the circumferential direction, and the second sheet bodies 12 of the second group of segments with wing-shaped structures 1 are sequentially placed at the connection notch 2, so that the second group of segments with wing-shaped structures 1 can be fixed to two adjacent segments with wing-shaped structures 1 in the first group respectively. The two groups of segments with wing-shaped structures 1 are spliced into a ring, and the segments with wing-shaped structures 1 in the next ring are continued to be spliced in the above manner, finally forming a shield tunnel as

[0023] In a preferred embodiment, the wing-shaped segment 1 has an axisymmetric structure.

[0024] As Figure 1 shown, the wing-shaped segment 1 is symmetric with respect to its center line extending in the axial direction. By assembling the wing-shaped segments 1 with a symmetric structure, the segments are evenly stressed during the assembly process, which can effectively reduce the construction difficulty, ensure the assembly quality of the joints between the segments, and make the formed tunnel more evenly and stably stressed.

[0025] In a preferred embodiment, there is a first angle between the two end faces of the first sheet 11 along the first circumferential direction and the first direction, and there is a second angle between the two end faces of the second sheet 12 along the first circumferential direction and the first direction, and the first angle and the second angle are of the same size.

[0026] In a preferred embodiment, the opening direction of the first angle faces the side of the second sheet 12, and the opening direction of the second angle faces the side of the first sheet 11.

[0027] As Figure 1 and Figure 2 shown, the plane development diagrams of the first sheet 11 and the second sheet 12 are both approximately trapezoidal structures. The lower bases of the first sheet 11 and the second sheet 12 are connected. When splicing, the connecting notch 2 formed between two adjacent first sheets 11 matches the shape of the second sheet 12, and the connecting notch 2 approximately in the trapezoidal structure enables the wing-shaped segment 1 to be inserted and spliced along the axial direction; the circumferential end faces of the first sheet 11 and the second sheet 12 have the same angle and can be engaged with each other during splicing, so that the formed tunnel has the advantages of high overall strength and large stiffness, further improving the bearing capacity and waterproof effect of the formed tunnel.

[0028] In a preferred embodiment, the angle of the first angle is 8° - 15°.

[0029] As Figure 1 shown, the angles between the circumferential end faces of the first sheet 11 and the second sheet 12 and the axial direction are both 8° - 15°, which is convenient for assembly and can also make the connection between the circumferential end faces of the two segments more stable.

[0030] In a preferred embodiment, both end faces of the first sheet 11 along the first circumferential direction have concave tenon parts 111, and both end faces of the second sheet 12 along the first circumferential direction have convex tenon parts 121, and the concave tenon parts 111 and the convex tenon parts 121 can be connected with each other in a matching manner.

[0031] As Figure 2As shown, through-grooves, i.e., the above-mentioned mortise portions 111, are provided on both end faces of the first sheet body 11 in the circumferential direction. Through-raised portions, i.e., the above-mentioned tenon portions 121, are provided on both end faces of the second sheet body 12 in the circumferential direction. The circumferential end faces of the first sheet body 11 and the second sheet body 12 can be tenon-connected through the mortise portions 111 and the tenon portions 121.

[0032] In a preferred embodiment, a plurality of insertion holes 112 are provided on the top end face of the first sheet body 11, and insertion members 122 are provided on the bottom end faces of the first sheet body 11 and the second sheet body 12 corresponding to the plurality of insertion holes 112. The insertion members 122 can be inserted and fixed with the insertion holes 112.

[0033] As Figure 1 shown, a plurality of female connectors are embedded in the top end face of the first sheet body 11. The female connectors are evenly distributed in the circumferential direction and have the above-mentioned insertion holes 112. A plurality of male connectors are embedded in the bottom end faces of the first sheet body 11 and the second sheet body 12 corresponding to the plurality of female connectors. A connecting pin shaft, i.e., the above-mentioned insertion member 122, is inserted in the male connector. The free end of the connecting pin shaft extends out of the bottom end faces of the first sheet body 11 and the second sheet body 12 and can be inserted and fixed with the female connector. The connection and constraint between the segment linings are realized through the insertion between the axial end faces of the wing-shaped segment lining 1, and the connection between the segment linings is unified to the circumferential joint contact surface, simplifying the connection method of the segment lining structure.

[0034] In a preferred embodiment, a sealing groove 13 is provided on the circumferential end face of the wing-shaped segment lining 1. The sealing groove 13 is used for arranging a sealing gasket.

[0035] As Figure 2 shown, one or two sealing grooves 13 are provided on the circumferential end face of the wing-shaped segment lining 1. The sealing groove 13 can be provided on one side of the inner or outer arc surface of the wing-shaped segment lining 1, or the two sealing grooves 13 are respectively located on the inner and outer sides of the insertion hole 112 and the insertion member 122. A sealing gasket is arranged in the sealing groove 13, and the sealing gasket can further improve the waterproof effect at the circumferential joint and longitudinal joint of the wing-shaped segment lining 1 after assembly.

[0036] Working principle: In this embodiment, each segment ring includes ten wing-shaped segment structures 1. During assembly, the first group of five wing-shaped segment structures 1 are evenly distributed along the circumferential direction. A connecting notch 2 is formed between the first sheet bodies 11 of two adjacent wing-shaped segment structures 1. The second group of five wing-shaped segment structures 1 are sequentially inserted into the connecting notch 2 along the axial direction, so that the two circumferential end faces of the second sheet bodies 12 of the second group of wing-shaped segment structures 1 are tenoned to the circumferential end faces of the two first sheet bodies 11 of the adjacent first group of wing-shaped segment structures 1 respectively. The axial end faces of the second group of wing-shaped segment structures 1 and the second group of wing-shaped segment structures 1 are inserted and fixed through the insertion holes 112 and the insertion parts 122. The two groups of wing-shaped segment structures 1 are spliced into a segment ring, and the wing-shaped segment structures 1 of the next ring are continuously spliced in the above manner to finally form a lining structure. After the lining structure is assembled, the notches at both axial ends can be sealed by pouring without additional filling.

[0037] Embodiment 2 This embodiment provides an assembled lining structure, including a wing-shaped segment structure as described in Embodiment 1. A plurality of wing-shaped segment structures 1 are evenly distributed along the first circumferential direction. A connecting notch 2 is formed between the first sheet bodies 11 of two adjacent wing-shaped segment structures 1. The second sheet bodies 12 of the wing-shaped segment structures 1 with the same number as the connecting notches 2 are respectively connected to the plurality of connecting notches 2 to form a segment ring, and a plurality of segment rings are sequentially connected along the first direction to form an assembled lining structure.

[0038] As Figure 3 and Figure 4 shown, the axial end face of the assembled segment ring is a notch-type joint surface. For a plurality of wing-shaped segment structures 1 at the same position in the axial direction, a connecting notch 2 is formed between the wing parts of two adjacent first sheet bodies 11. The second sheet body 12 of the wing-shaped segment structure to be assembled is inserted into the connecting notch 2 along the axial direction to be closed into a segment ring. The circumferential joint surfaces of each segment structure are connected by plug-in joints, and the longitudinal joint surfaces are connected by tenon and mortise joints.

[0039] In this article, specific examples are used to elaborate on the principles and implementation manners of the present invention. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present invention. The above are only the preferred implementation manners of the present invention. It should be noted that due to the limited nature of literal expression and objectively existing infinite specific structures, for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements, modifications or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, modifications, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, shall all be regarded as the protection scope of the present invention.

Claims

1. A wing-shaped structural segment, characterized in that: The wing-shaped structural segment (1) comprises a first segment (11) and a second segment (12); the first segment (11) and the second segment (12) are integrally connected along a first direction and have the same length in the first direction; the length of the first segment (11) in a first circumferential direction is greater than the length of the second segment (12); the first circumferential direction is perpendicular to the first direction; the end surface of the first segment (11) along the first circumferential direction and the end surface of the second segment (12) along the first circumferential direction can be matched and connected to each other; the top end surface of the first segment (11) can be plug-connected with the bottom end surfaces of the first segment (11) and the second segment (12) along the first direction.

2. The wing-shaped structural segment according to claim 1, characterized in that: The wing-shaped structural segment (1) is an axisymmetric structure.

3. The wing-shaped structural segment according to claim 1, characterized in that: A first angle is formed between the end surfaces of both sides of the first sheet body (11) along the first circumferential direction and the first direction, and a second angle is formed between the end surfaces of both sides of the second sheet body (12) along the first circumferential direction and the first direction, and the first angle and the second angle are of the same size.

4. The wing-shaped structural segment according to claim 3, characterized in that: The opening direction of the first angle is towards one side of the second sheet body (12), and the opening direction of the second angle is towards one side of the first sheet body (11).

5. The wing-shaped structural segment according to claim 3, characterized in that: The first angle is between 8° and 15°.

6. The wing-shaped structural segment according to claim 1, characterized in that: Both side end surfaces of the first sheet body (11) along the first circumferential direction have concave tenon portions (111), and both side end surfaces of the second sheet body (12) along the first circumferential direction have convex tenon portions (121), and the concave tenon portions (111) and the convex tenon portions (121) can be matched and connected to each other.

7. The wing-shaped structural segment according to claim 1, characterized in that: The top end surface of the first sheet (11) is provided with a plurality of insertion holes (112), and the bottom end surfaces of the first sheet (11) and the second sheet (12) are provided with insertion pieces (122) corresponding to the plurality of insertion holes (112), and the insertion pieces (122) can be inserted and fixed into the insertion holes (112).

8. The wing-shaped structural segment according to claim 1, characterized in that: A sealing groove (13) is provided on the circumferential end surface of the wing-shaped structural segment (1), and the sealing groove (13) is used to arrange a sealing gasket.

9. An assembled lining structure, characterized in that: It comprises a wing-shaped structure segment according to any one of claims 1 to 8, wherein a plurality of the wing-shaped structure segments (1) are distributed at equal intervals along the first circumferential direction, a connecting groove (2) is formed between the first plates (11) of two adjacent wing-shaped structure segments (1), and the second plates (12) of the wing-shaped structure segments (1) having the same number as the connecting grooves (2) are respectively connected to the plurality of connecting grooves (2) to form segment rings, and the plurality of segment rings are sequentially connected along the first direction to form the assembled lining structure.

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