Wedging type prefabricated shield segment waterproof structure

Abstract

The utility model relates to the technical field of shield construction, in particular to a wedged type prefabricated shield segment waterproof structure which comprises a plurality of prefabricated shield segments and wedge-shaped waterproof strips installed between every two adjacent prefabricated shield segments. A plurality of prefabricated shield segments are connected to form a prefabricated shield segment unit; a wedge-shaped mounting hole is formed in the longitudinal cutting face of each prefabricated shield segment, the two wedge-shaped mounting holes in every two adjacent prefabricated shield segments are buckled to form a double-wedge-shaped mounting hole, and the wedge-shaped waterproof strips are mounted in the double-wedge-shaped mounting holes. An arc-shaped protrusion is arranged on the front transverse cutting face of each prefabricated shield segment, an arc-shaped groove is formed in the rear transverse cutting face of each prefabricated shield segment, and the arc-shaped protrusions are matched with the arc-shaped grooves. Underground water can be effectively prevented from permeating from longitudinal gaps and transverse gaps of the segment units, potential safety hazards of a tunnel are eradicated, the safety of the tunnel is improved, and the later maintenance cost of the tunnel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of shield construction, in particular to a wedge-type prefabricated shield segment waterproof structure. Background Art

[0002] The shield construction method is a fully mechanized construction method in the underground excavation method. During the shield construction process, after the shield machine is pushed forward, prefabricated shield segment units are used to support the surrounding rock or soil layers to prevent tunnel collapse and ensure tunnel safety. The prefabricated shield segment units used are composed of multiple prefabricated shield segments. These prefabricated shield segments have a certain curvature and form a cylindrical prefabricated shield segment unit after synthesis. Then, during the installation and connection of the prefabricated shield segments, if the longitudinal gaps between two adjacent prefabricated shield segments and the transverse gaps between two adjacent prefabricated shield segment units are not waterproofed, groundwater will seep into the interior of the prefabricated shield segment units. Once such leakage occurs, it may cause a huge safety hazard to the tunnel and increase the subsequent repair and maintenance costs of the tunnel. Utility Model Content

[0003] Therefore, in order to solve the problem that groundwater easily seeps into the interior of the prefabricated shield segment unit during the existing shield construction process, thereby causing major safety hazards in the tunnel, the utility model provides a wedge-type prefabricated shield segment waterproof structure.

[0004] The technical solutions adopted by the present invention to solve the technical problems are as follows:

[0005] The utility model provides a wedge-type prefabricated shield segment waterproof structure, which mainly includes: multiple prefabricated shield segments and wedge-shaped waterproof strips installed between two adjacent prefabricated shield segments; multiple prefabricated shield segments are connected to form a prefabricated shield segment unit; a wedge-shaped mounting hole is provided in the longitudinal cutting surface of each prefabricated shield segment, and the two wedge-shaped mounting holes on the two adjacent prefabricated shield segments are buckled to form a double wedge-shaped mounting hole, and the wedge-shaped waterproof strip is installed in the double wedge-shaped mounting hole; an arc-shaped protrusion is provided on the front transverse cutting surface of each prefabricated shield segment, and an arc-shaped groove is provided in the rear transverse cutting surface of each prefabricated shield segment, and the arc-shaped protrusion cooperates with the arc-shaped groove.

[0006] Furthermore, as a preferred embodiment, the wedge-shaped waterproof strip is composed of four wedge-shaped strip structures, the two wedge-shaped strip structures at the upper end are symmetrically arranged, and the two wedge-shaped strip structures at the lower end are symmetrically arranged. The wedge-shaped waterproof strip is a left-right symmetrical structure and an up-down symmetrical structure.

[0007] Furthermore, as a more preferred embodiment, a pad is provided on the outer wall of each wedge-shaped strip structure.

[0008] Furthermore, as a more preferred embodiment, the gasket is made of silicone rubber material or rubber material.

[0009] Furthermore, as a more preferred embodiment, the four wedge-shaped strip structures can be formed by mechanical integration processing.

[0010] Furthermore, as a more preferred embodiment, the cross-section of each wedge-shaped strip structure is wedge-shaped.

[0011] Furthermore, as a more preferred embodiment, a rectangular protrusion is provided in the wedge-shaped mounting hole, rectangular mounting holes are provided on both sides of the wedge-shaped waterproof strip, and the rectangular protrusion is installed in the rectangular mounting hole.

[0012] Furthermore, as a preferred embodiment, two adjacent prefabricated shield segment units are connected through the matching relationship between the arc-shaped protrusion and the arc-shaped groove, that is, the arc-shaped protrusion can be inserted into the arc-shaped groove.

[0013] The beneficial effects of the utility model are:

[0014] The utility model provides a wedge-type prefabricated shield segment waterproof structure, and its use method is as follows:

[0015] The wedge-shaped waterproof strip is installed as a whole in the double wedge-shaped mounting hole formed by the two wedge-shaped mounting holes of two adjacent prefabricated shield segments. At this time, the arc-shaped protrusion on the front transverse cutting surface of the prefabricated shield segment is embedded in the rectangular mounting hole on the wedge-shaped waterproof strip. According to this method, the connection and installation of multiple prefabricated shield segments are completed to form a complete prefabricated shield segment unit; then the two prefabricated shield segment units are connected in a front-to-back connection manner, specifically, the arc-shaped protrusion at the front end of the first prefabricated shield segment unit is correspondingly inserted into the arc-shaped groove at the rear end of the second prefabricated shield segment unit, thereby completing the connection and installation of the two prefabricated shield segment units.

[0016] The utility model provides a wedge-type prefabricated shield segment waterproof structure, in which a wedge-shaped waterproof strip is installed in the longitudinal gap between two adjacent prefabricated shield segments. Due to the structural design of the wedge-shaped waterproof strip, it can prevent water seepage in the longitudinal direction of the segment to the greatest extent, and effectively prevent groundwater from seeping in from the longitudinal gap of the segment unit. At the same time, the utility model also provides an arc-shaped protrusion and an arc-shaped groove between the two adjacent prefabricated shield segment units, that is, in the transverse gap. The connection and installation of the two prefabricated shield segment units are completed by inserting the arc-shaped protrusion into the arc-shaped groove, which can greatly prevent groundwater from seeping in from the transverse gap of the segment unit.

[0017] The utility model provides a wedge-type prefabricated shield segment waterproof structure, which can effectively prevent groundwater from seeping into the interior of the segment unit through the longitudinal and transverse gaps of the segment unit, eliminating tunnel safety hazards, improving tunnel safety, and reducing the later maintenance costs of the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention provides a schematic structural diagram of a prefabricated shield segment unit in a wedge-type prefabricated shield segment waterproof structure.

[0019] Figure 2 The present invention provides a structural schematic diagram of a wedge-type prefabricated shield segment waterproof structure.

[0020] Figure 3 The present invention provides a three-dimensional structural schematic diagram of a wedge-shaped waterproof strip in a wedge-type prefabricated shield segment waterproof structure.

[0021] Figure 4 This is a schematic cross-sectional view of a wedge-shaped waterproof strip in a wedge-type prefabricated shield segment waterproof structure provided by the utility model.

[0022] Figure 5 This is a structural schematic diagram of the arc-shaped protrusion in a wedge-type prefabricated shield segment waterproof structure provided by the utility model.

[0023] In the figure,

[0024] 1. Prefabricated shield segment, 101, wedge-shaped mounting hole, 102, rectangular protrusion;

[0025] 2. Arc-shaped bulge;

[0026] 3. Wedge-shaped waterproof strip, 301, gasket, 302, rectangular mounting hole;

[0027] A. Wedge-shaped strip structure. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below with reference to the accompanying drawings.

[0029] See also Figures 1 to 5 As shown, the utility model provides a wedge-type prefabricated shield segment waterproof structure, which specifically includes:

[0030] Multiple prefabricated shield segments 1, arc-shaped protrusions 2 and wedge-shaped waterproof strips 3.

[0031] Among them, multiple prefabricated shield segments 1 are connected to form a complete prefabricated shield segment unit.

[0032] A wedge-shaped waterproof strip 3 is installed between every two adjacent prefabricated shield segments 1 (in the longitudinal direction).

[0033] A wedge-shaped mounting hole 101 is provided in the longitudinal cutting surface of each prefabricated shield segment 1 , and the cross section of the wedge-shaped mounting hole 101 is in the shape of two wedges.

[0034] The two wedge-shaped mounting holes 101 on two adjacent prefabricated shield segments 1 are fastened together to form a complete double-wedge-shaped mounting hole, and the wedge-shaped waterproof strip 3 is installed in the double-wedge-shaped mounting hole.

[0035] As a preferred embodiment, the wedge-shaped waterproof strip 3 is composed of four wedge-shaped strip structures A, the two wedge-shaped strip structures A at the upper end are symmetrically arranged, and the two wedge-shaped strip structures A at the lower end are also symmetrically arranged. The wedge-shaped waterproof strip 3 formed by combining these four wedge-shaped strip structures A is both a left-right symmetrical structure and a top-down symmetrical structure.

[0036] As a preferred embodiment, a gasket 301 may be provided on the outer wall of each wedge-shaped strip structure A. The gasket 301 may be made of silicone rubber or rubber material.

[0037] As a preferred embodiment, the four wedge-shaped strip structures A can be formed by mechanical integration processing.

[0038] As a preferred embodiment, the cross section of each wedge-shaped strip structure A can be set to be wedge-shaped.

[0039] A circular arc-shaped protrusion 2 is provided on the front transverse cutting surface of each prefabricated shield segment 1, and a circular arc-shaped groove (not shown in the figure) is provided in the rear transverse cutting surface of each prefabricated shield segment 1. The circular arc-shaped protrusion 2 cooperates with the circular arc-shaped groove, that is, the circular arc-shaped protrusion 2 can be inserted into the circular arc-shaped groove.

[0040] As a preferred embodiment, a rectangular protrusion 102 is provided in the wedge-shaped mounting hole 101, and rectangular mounting holes 302 are provided on both sides of the wedge-shaped waterproof strip 3. The rectangular protrusion 102 can be installed in the rectangular mounting hole 302 to achieve a more secure connection between the wedge-shaped waterproof strip 3 and the prefabricated shield segment 1.

[0041] Therefore, two adjacent prefabricated shield segment units are connected through the matching relationship between the arc-shaped protrusion 2 and the arc-shaped groove, that is, the arc-shaped protrusion 2 can be inserted into the arc-shaped groove.

[0042] The utility model provides a wedge-type prefabricated shield segment waterproof structure, and its use method is as follows:

[0043] The wedge-shaped waterproof strip 3 is installed as a whole in the double wedge-shaped mounting hole formed by the two wedge-shaped mounting holes 101 of two adjacent prefabricated shield segments. At this time, the arc-shaped protrusion 2 on the front transverse cutting surface of the prefabricated shield segment 1 is embedded in the rectangular mounting hole 302 on the wedge-shaped waterproof strip 3. According to this method, the connection and installation of multiple prefabricated shield segments 1 are completed to form a complete prefabricated shield segment unit; then the two prefabricated shield segment units are connected in a front-to-back connection manner, specifically, the arc-shaped protrusion 2 at the front end of the first prefabricated shield segment unit is correspondingly inserted into the arc-shaped groove at the rear end of the second prefabricated shield segment unit, thereby completing the connection and installation of the two prefabricated shield segment units.

[0044] The utility model provides a wedge-type prefabricated shield segment waterproof structure, in which a wedge-shaped waterproof strip 3 is installed in the longitudinal gap between two adjacent prefabricated shield segments. Due to the structural design of the wedge-shaped waterproof strip 3, it can prevent water seepage in the longitudinal direction of the segment to the greatest extent, and effectively prevent groundwater from seeping into the longitudinal gap of the segment unit. At the same time, the utility model also provides an arc-shaped protrusion 2 and an arc-shaped groove between the two adjacent prefabricated shield segment units, that is, in the transverse gap. The connection and installation of the two prefabricated shield segment units are completed by inserting the arc-shaped protrusion 2 into the arc-shaped groove, which can greatly prevent groundwater from seeping into the transverse gap of the segment unit.

[0045] The utility model provides a wedge-type prefabricated shield segment waterproof structure, which can effectively prevent groundwater from seeping into the interior of the segment unit through the longitudinal and transverse gaps of the segment unit, eliminating tunnel safety hazards, improving tunnel safety, and reducing the later maintenance costs of the tunnel.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 on the protection content of the present invention.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A wedge-type prefabricated shield segment waterproof structure, characterized in that: include: A plurality of prefabricated shield segments (1) and a wedge-shaped waterproof strip (3) installed between two adjacent prefabricated shield segments (1); the plurality of prefabricated shield segments (1) are connected to form a prefabricated shield segment unit; a wedge-shaped mounting hole (101) is provided in the longitudinal cutting surface of each prefabricated shield segment (1); the two wedge-shaped mounting holes (101) on the two adjacent prefabricated shield segments (1) are buckled to form a double wedge-shaped mounting hole, and the wedge-shaped waterproof strip (3) is installed in the double wedge-shaped mounting hole; a circular arc protrusion (2) is provided on the front transverse cutting surface of each prefabricated shield segment (1), and a circular arc groove is provided in the rear transverse cutting surface of each prefabricated shield segment (1), and the circular arc protrusion (2) cooperates with the circular arc groove.

2. A wedge-type prefabricated shield segment waterproof structure according to claim 1, characterized in that: The wedge-shaped waterproof strip (3) is composed of four wedge-shaped strip structures (A), two wedge-shaped strip structures (A) at the upper end are symmetrically arranged, and two wedge-shaped strip structures (A) at the lower end are symmetrically arranged. The wedge-shaped waterproof strip (3) is a left-right symmetrical structure and a top-bottom symmetrical structure.

3. A wedge-type prefabricated shield segment waterproof structure according to claim 2, characterized in that: A liner (301) is provided on the outer wall of each wedge-shaped strip structure (A).

4. A wedge-type prefabricated shield segment waterproof structure according to claim 3, characterized in that: The liner (301) is made of silicone rubber material or rubber material.

5. The wedge-type prefabricated shield segment waterproof structure according to claim 2, characterized in that: The four wedge-shaped strip structures (A) are formed by mechanical integration processing.

6. The wedge-type prefabricated shield segment waterproof structure according to claim 2, characterized in that: Each wedge-shaped strip structure (A) has a wedge-shaped cross section.

7. The wedge-type prefabricated shield segment waterproof structure according to claim 2, characterized in that: A rectangular protrusion (102) is provided in the wedge-shaped installation hole (101), and rectangular installation holes (302) are provided on both sides of the wedge-shaped waterproof strip (3), and the rectangular protrusion (102) is installed in the rectangular installation hole (302).

8. The wedge-type prefabricated shield segment waterproof structure according to claim 1, characterized in that: Two adjacent prefabricated shield segment units are connected via a matching relationship between a circular arc-shaped protrusion (2) and a circular arc-shaped groove, that is, the circular arc-shaped protrusion (2) can be inserted into the circular arc-shaped groove.

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