Tunnel assembly type lining structure

Abstract

The utility model provides a tunnel assembly type lining structure, and relates to the technical field of tunnel engineering. The structure comprises a plurality of lining rings, a water diversion structure is arranged between the side walls of every two adjacent lining rings, joints between every two adjacent lining rings are surrounded by the water diversion structures and located in cavities of the water diversion structures, the two ends of each water diversion structure extend into side ditches at the two ends of a tunnel respectively, and the cavities of the water diversion structures communicate with the side ditches at the two ends of the tunnel. The lining ring comprises a plurality of lining sections, the two ends of each lining section are provided with a protruding block and a groove correspondingly, and the lining sections are connected end to end through the protruding blocks and the grooves at the ends to form the annular lining. The water receiving structure is arranged at the joint of the two adjacent lining sections, the joint of the adjacent lining sections is surrounded by the water receiving structure and located in the cavity of the water receiving structure, the end of the water receiving structure is arranged in the water diversion structure, and the cavity of the water receiving structure is communicated with the cavity of the water diversion structure. The structure solves the problem that a waterproof layer is poor in water stopping effect due to geological changes.

Description

Technical Field

[0001] This utility model relates to the field of tunnel engineering technology, and more specifically, to a prefabricated tunnel lining structure. Background Technology

[0002] In the current field of tunnel engineering technology, traditional tunnel lining structures generally consist of two main parts: initial support and secondary lining. When facing complex geological conditions with risks of deformation or collapse, advanced support measures are typically added to ensure ground stability and construction safety during tunnel excavation. A waterproof layer is then installed between the initial support and the secondary lining to ensure a dry tunnel environment. Currently, it is common practice to separately install initial support, secondary lining, and advanced support, all working together to provide load-bearing capacity, with each playing a different role at different construction stages. However, this approach is relatively complex and time-consuming, and its effectiveness is easily affected by changes in geological conditions or construction operations. Particularly concerning is ensuring the effectiveness of the waterproof layer; geological changes or improper construction can lead to poor water-stopping properties due to these factors.

[0003] Therefore, there is an urgent need for a prefabricated tunnel lining structure to solve the problem of poor water-stopping effect of the waterproof layer due to geological changes or improper construction. Utility Model Content

[0004] The purpose of this utility model is to provide a prefabricated tunnel lining structure to improve the above-mentioned problems. To achieve the above objective, the technical solution adopted by this utility model is as follows:

[0005] A prefabricated tunnel lining structure includes: the lining assembly structure comprising multiple lining rings, a water diversion structure disposed between two adjacent lining rings, the side walls of the water diversion structure being connected to the side walls of the two adjacent lining rings respectively, the joint between two adjacent lining rings being surrounded by the water diversion structure and located within the cavity of the water diversion structure, the two ends of the water diversion structure extending to the side ditches at both ends of the tunnel respectively, and the cavity of the water diversion structure communicating with the side ditches at both ends of the tunnel, each lining ring comprising multiple lining segments, each lining segment having a protrusion and a groove at both ends respectively, the multiple lining segments being connected end-to-end through the protrusions and grooves at the ends to form a ring lining; a water receiving structure disposed at the joint between two adjacent lining segments, the joint between the two adjacent lining segments being surrounded by the water receiving structure and located within the cavity of the water receiving structure, the end of the water receiving structure being disposed within the water diversion structure, and the cavity of the water receiving structure communicating with the cavity of the water diversion structure.

[0006] Preferably, the protrusion is a tenon structure, and the protrusion is connected to the groove by a mortise and tenon joint.

[0007] Preferably, the plurality of lining sections are an arch lining structure, two sidewall lining structures, and an inverted arch lining structure, wherein the two ends of the arch lining structure are respectively connected to one end of the two sidewall lining structures, and the two ends of the inverted arch lining structure are respectively connected to the other end of the two sidewall lining structures.

[0008] Preferably, the invert arch lining structure includes a first invert arch lining section and a second invert arch lining section, wherein there is at least one first invert arch lining section and at least two second invert arch lining sections, and the first invert arch lining section is connected to the second invert arch lining section.

[0009] Preferably, the lining section includes a steel shell and a concrete layer, wherein the concrete layer is disposed within the steel shell.

[0010] Preferably, a water-receiving rubber pad is provided between the water-receiving structure and the lining section, and the water-receiving rubber pad and the water-receiving structure are set on the side wall of the lining section by a rivet structure.

[0011] Preferably, the water receiving structure is a steel trough structure, and a water receiving groove is provided in the middle of the water receiving structure. The cross-section of the water receiving groove is rectangular, trapezoidal or arc-shaped.

[0012] Preferably, the water diversion structure is a steel trough structure, and a water diversion ring is provided in the middle of the water diversion structure, the cross-section of the water diversion ring being rectangular.

[0013] The beneficial effects of this structure are:

[0014] This invention introduces lining sections, a water-receiving structure, and a water-draining structure. A water-receiving structure is installed at the joints between multiple lining sections to collect groundwater seeping into the joints of adjacent lining sections, solving the problem of seepage between adjacent lining sections. Multiple lining sections are connected to form lining rings, effectively replacing the complex construction process of existing composite linings. The lining sections achieve the support effect of composite linings. The water-draining structure is located between adjacent lining rings, draining seepage water between the lining rings and water collected by the water-receiving structure, thus achieving a dry tunnel environment. The combined use of the water-draining and water-receiving structures ensures the comprehensiveness and efficiency of the drainage system. This invention also solves the problem of poor waterproofing effect due to geological changes or improper construction.

[0015] Other features and advantages of this invention will be set forth in the following description, and in part will be obvious from the description or may be learned by practicing the embodiments of this invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 For based on Figure 1 A magnified structural diagram of region A;

[0019] Figure 3 This is a schematic diagram of the specific structure of the lining section described in this utility model;

[0020] Figure 4 This is a cross-sectional view of the structure of this utility model;

[0021] Figure 5 This is a schematic diagram showing the specific arrangement of the lining section described in this utility model;

[0022] Figure 6 This is a longitudinal sectional view of the structure of this utility model;

[0023] Figure 7 For based on Figure 6 A magnified structural diagram of region B;

[0024] Marked in the image:

[0025] 1. Lining ring; 2. Water diversion structure; 3. Water receiving structure; 4. Protrusion; 5. Groove; 6. Water receiving rubber pad; 7. Rivet structure; 8. Lining section; 9. Joint; 11. Arch lining structure; 12. Side wall lining structure; 13. Invert arch lining structure; 21. Water diversion ring; 31. Water receiving trough; 131. First invert arch lining section; 132. Second invert arch lining section. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] like Figures 1 to 3 As shown, a prefabricated tunnel lining structure includes: the lining assembly structure comprising multiple lining rings 1, a water diversion structure 2 disposed between two adjacent lining rings 1, the side walls of the water diversion structure 2 being connected to the side walls of the two adjacent lining rings 1 respectively, the joint 9 between two adjacent lining rings 1 being surrounded by the water diversion structure 2 and located within the cavity of the water diversion structure 2, the two ends of the water diversion structure 2 extending into the side ditches at both ends of the tunnel respectively, and the cavity of the water diversion structure 2 communicating with the side ditches at both ends of the tunnel, each lining ring 1 comprising: Multiple lining segments 8, each of which has a protrusion 4 and a groove 5 at both ends, are connected end to end by the protrusion 4 and groove 5 to form a ring lining; a water receiving structure 3 is set at the joint 9 of two adjacent lining segments 8, the joint 9 of the two adjacent lining segments 8 is surrounded by the water receiving structure 3 and located in the cavity of the water receiving structure 3, the end of the water receiving structure 3 is set in the water diversion structure 2 and the cavity of the water receiving structure 3 is connected to the cavity of the water diversion structure 2.

[0029] Compared with the prior art, the lining structure of this utility model adopts a single-layer lining design. Multiple lining segments 8 are connected end to end to form a ring lining, which replaces the complicated construction process of advance support, initial support and secondary lining in the traditional technology. The lining segments 8 achieve the support effect of composite lining. During the excavation process, the lining segments 8 can provide pre-support for the surrounding rock and bear the permanent load capacity of the structure.

[0030] This structure can simultaneously perform the functions of advanced support, initial support, and secondary lining in conventional composite lining structures. While ensuring load-bearing capacity, it reduces the construction and material usage of multiple lining layers, especially eliminating the additional materials required for traditional secondary lining. Furthermore, the rapid assembly of prefabricated lining sections 8 simplifies the construction process, thus achieving the dual advantages of less material usage and higher construction efficiency. This effectively reduces project costs and time costs.

[0031] The water receiving structure 3 is used to collect the groundwater that seeps in through the joint 9, and then the collected groundwater flows into the water diversion structure 2. Subsequently, through the effective drainage of the water diversion structure 2, the groundwater is smoothly discharged into the side ditches at both ends of the tunnel and the central water ditch of the tunnel, thereby achieving efficient drainage. The water diversion structure 2 and the water receiving structure 3 ensure the comprehensiveness and efficiency of the drainage system.

[0032] like Figure 3 As shown, the protrusion 4 is a tenon structure, and the protrusion 4 is mortised and tenoned with the groove 5. The protrusion 4 and the groove 5 are used to achieve a firm connection between two adjacent lining sections 8.

[0033] like Figure 5 and Figure 6 As shown, the multiple lining segments 8 are an arch lining structure 11, two sidewall lining structures 12, and an inverted arch lining structure 13. The two ends of the arch lining structure 11 are connected to one end of each of the two sidewall lining structures 12, and the two ends of the inverted arch lining structure 13 are connected to the other ends of each of the two sidewall lining structures 12. In this structure, the arch lining structure 11 bears the vertical load from above, while the two sidewall lining structures ensure the horizontal stability and load-bearing capacity of the structure. This facilitates rapid and accurate assembly on-site, forming a continuous support surface and effectively resisting pressure from the side walls.

[0034] The arch lining structure 11, the two sidewall lining structures 12, and the invert arch lining structure 13 all form radial arcs with gradually increasing longitudinal radii. The radial angle is determined by factors such as the thickness of the lining segment 8 and the longitudinal length of the segment. The longitudinal length of the arch lining structure 11, the two sidewall lining structures 12, and the invert arch lining structure 13 is determined by comprehensively considering factors such as construction technology, geological conditions, and ease of hoisting and assembly.

[0035] In the structure, the invert lining structure 13 includes a first invert lining section 131 and a second invert lining section 132. There is at least one first invert lining section 131 and at least two second invert lining sections 132. The first invert lining section 131 and the second invert lining section 132 are connected. The first invert lining section 131 and the second invert lining section 132 effectively disperse and resist pressure from the tunnel floor, while optimizing the stress distribution of the structure and reducing potential crack and deformation risks. The first invert lining section 131 and the second invert lining section 132 enhance the load-bearing capacity and stability of the lining structure.

[0036] In this invention, the lining section 8 comprises a steel shell and a concrete layer, with the concrete layer disposed within the steel shell. The steel shell has grouting holes through which concrete is poured. The poured concrete is then vibrated to ensure its density and uniformity. This process aims to make the lining section 8 a steel-concrete composite structure, thereby enhancing its overall mechanical properties. Preferably, the concrete layer is formed by pouring concrete. The lining section 8 achieves a three-in-one support effect combining advanced support, initial support, and secondary lining, fully utilizing the material properties of both steel and concrete.

[0037] To clarify the specific structure of the water-receiving structure 3, a water-receiving rubber pad 6 is provided between the water-receiving structure 3 and the lining section 8. The water-receiving rubber pad 6 and the water-receiving structure 3 are set on the side wall of the lining section 8 by a rivet structure 7. The water-receiving rubber pad 6 is tightly attached between the water-receiving structure 3 and the lining section 8, forming an indestructible waterproof barrier, effectively dealing with the problem of water penetration in various complex environments.

[0038] Furthermore, the water receiving structure 3 is a steel trough structure, and a water receiving groove 31 is provided in the middle of the water receiving structure 3. The cross-section of the water receiving groove 31 is rectangular, trapezoidal or arc-shaped.

[0039] like Figure 4 and Figure 7 As shown, to clarify the specific configuration of the water diversion structure 2, the water diversion structure 2 is a steel trough structure, and a water diversion ring 21 is provided in the middle of the water diversion structure 2. The cross-section of the water diversion ring 21 is rectangular. A water diversion rubber pad is provided between the water diversion structure 2 and the lining ring 1. The two side walls of the water diversion rubber pad are connected to the side walls of the water diversion structure 2 and the side walls of the lining ring 1. The water diversion rubber pad and the water diversion structure 2 are connected to the lining ring 1 by a fastener. The lining ring 1 includes a front lining ring and a rear lining ring, and the water diversion ring 21 is disposed between the front lining ring and the rear lining ring.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0041] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A tunnel lining structure of the tunnel-assembled type, characterized in that, The application relates to a lining assembly structure, which comprises a plurality of lining rings (1), a water guide structure (2) arranged between two adjacent lining rings (1), two side walls of the water guide structure (2) are connected with two adjacent lining rings (1) respectively, a joint (9) between two adjacent lining rings (1) is surrounded by the water guide structure (2) and located in a cavity of the water guide structure (2), two ends of the water guide structure (2) extend into side trenches at two ends of a tunnel respectively, and the cavity of the water guide structure (2) is communicated with the side trenches at two ends of the tunnel, each lining ring (1) comprises a plurality of lining segments (8), two ends of each lining segment (8) are provided with a protruding block (4) and a recess (5) respectively, the plurality of lining segments (8) are connected in a head-to-tail mode through the protruding blocks (4) and the recesses (5) at the ends, and thus annular lining is formed. A water receiving structure (3) is arranged at a joint (9) between two adjacent lining segments (8), the joint (9) between two adjacent lining segments (8) is surrounded by the water receiving structure (3) and located in a cavity of the water receiving structure (3), and an end of the water receiving structure (3) is arranged in the water guide structure (2), and the cavity of the water receiving structure (3) is communicated with the cavity of the water guide structure (2). The protruding block (4) is in a tenon structure, and the protruding block (4) is connected with the recess (5) in a mortise and tenon mode.

2. The tunnel lining structure of claim 1, wherein The plurality of lining segments (8) are respectively an arch portion lining structure (11), two side wall lining structures (12) and a inverted arch lining structure (13), two ends of the arch portion lining structure (11) are connected with one end of two side wall lining structures (12) respectively, and two ends of the inverted arch lining structure (13) are connected with the other end of two side wall lining structures (12) respectively.

3. The tunnel lining structure of claim 1, wherein The inverted arch lining structure (13) comprises a first inverted arch lining segment (131) and a second inverted arch lining segment (132), the first inverted arch lining segment (131) is not less than one, the second inverted arch lining segment (132) is not less than two, and the first inverted arch lining segment (131) is connected with the second inverted arch lining segment (132).

4. The tunnel lining structure of claim 3, wherein The lining segment (8) comprises a steel shell and a concrete layer, and the concrete layer is arranged in the steel shell.

5. The tunnel lining structure of claim 1, wherein A water receiving rubber pad (6) is arranged between the water receiving structure (3) and the lining segment (8), and the water receiving rubber pad (6) and the water receiving structure (3) are arranged on the side wall of the lining segment (8) through a rivet structure (7).

6. The tunnel lining structure of claim 1, wherein The water receiving structure (3) is a steel tank structure, a water receiving groove (31) is arranged in the middle of the water receiving structure (3), and the cross section of the water receiving groove (31) is in a rectangular, trapezoidal or arc shape.

7. The tunnel lining structure of claim 1, wherein The water guide structure (2) is a steel tank structure, a water guide ring (21) is arranged in the middle of the water guide structure (2), and the cross section of the water guide ring (21) is in a rectangular shape.

8. The tunnel lining structure of claim 1, wherein, ​

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