CN211314242U

CN211314242U - Shield tunnel composite waterproof structure

Info

Publication number: CN211314242U
Application number: CN202020015916.5U
Authority: CN
Inventors: 刘斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-08-21
Anticipated expiration: 2030-01-06

Abstract

The utility model discloses a shield tunnel composite waterproof construction, including the shield tunnel, the shield tunnel is formed by the concatenation of a plurality of shield structure section of jurisdiction of group, the drainage canal has been seted up under the shield tunnel, install the water guide backup pad in the drainage canal, the whole i-shaped structure that is of water guide backup pad just includes the water deflector and fixes the cambered surface backup pad at both ends about the water deflector, place in the drainage canal in the water deflector and inside machine-shaping has the water guide runner, the cambered surface backup pad that is located the top is connected with the bottom of shield tunnel, the junction of adjacent two sets of shield structure sections of jurisdiction is provided with waterproof construction, waterproof construction is including offering the seal groove in the shield structure section of jurisdiction junction outside and placing the waterproof spacer in the seal groove in. The utility model discloses pre-open in the bottom of shield tunnel and be equipped with the drainage canal and be provided with the water guide backup pad in the inside of drainage canal, can guarantee the intensity of shield tunnel bottom on the one hand, on the other hand can reach the purpose of drainage, avoids shield tunnel bottom to appear the condition of ponding.

Description

Shield tunnel composite waterproof structure

Technical Field

The utility model relates to a shield tunnel technical field specifically is a shield tunnel composite waterproof structure.

Background

The shield method is a fully mechanical construction method in the construction of the subsurface excavation method, which is a mechanical construction method that a shield machine is propelled in the ground, surrounding rocks around the shield machine are supported by a shield shell and segments to prevent collapse into a tunnel, meanwhile, a cutting device is used for excavating soil in front of an excavation surface, the soil is transported out of the tunnel by an unearthing machine, is pressed and jacked at the rear part by a jack, and precast concrete segments are assembled to form a tunnel structure, and the shield tunnel is generally formed by splicing a plurality of groups of shield segments.

However, the existing shield tunnel has the following problems in the using process: (1) in the long-time use process of the shield tunnel, water seepage is easy to occur in a gap connected by shield segments; (2) the shield tunnel is arranged in the condition that the underground bottom easily generates accumulated water, the bottom structure of the shield tunnel is easily loosened to influence the stability, and a corresponding drainage mechanism is lacked. For this reason, a corresponding technical scheme needs to be designed to solve the existing technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a shield tunnel composite waterproof structure has solved the problem that proposes in the background art, satisfies the in-service use demand.

In order to achieve the above object, the utility model provides a following technical scheme: a composite waterproof structure of a shield tunnel comprises the shield tunnel which is formed by splicing a plurality of groups of shield segments, a drainage channel is arranged right below the shield tunnel, a water guide supporting plate is arranged in the drainage channel, the water guide supporting plate is integrally of an I-shaped structure and comprises a water guide plate and cambered surface supporting plates fixed at the upper end and the lower end of the water guide plate, the water guide plate is arranged in the drainage channel, a water guide flow channel is formed in the water guide plate, the cambered surface supporting plate positioned above the water guide plate is connected with the bottom of the shield tunnel, a waterproof structure is arranged at the joint of two adjacent groups of shield segments, the waterproof structure comprises a sealing groove arranged at the outer side of the connecting part of the shield segments and a waterproof spacer arranged in the sealing groove, the both sides of seal groove are provided with the draw-in groove, the draw-in groove is seted up on the shield pipe piece, just place in the draw-in groove in the outside both ends of waterproof shock insulator.

As an optimal implementation manner of the present invention, a plurality of sets of water inlets have been evenly seted up on the lateral wall of the water guide plate, the water inlets are linked together with the water guide runner, the bottom machine-shaping of the water guide runner has the drainage runner, the drainage runner is the concave cambered surface structure.

As a preferred embodiment of the utility model, a plurality of groups of water inlet channels are evenly seted up on the surface of cambered surface backup pad.

As a preferred embodiment of the present invention, the whole sealing groove is of a T-shaped structure and includes an auxiliary groove located at the lower end and a main groove located at the upper end, the auxiliary groove is communicated with the main groove, and the specification of the main groove is greater than the auxiliary groove.

As an optimal implementation mode of the utility model, the surface of waterproof shock insulator is ARC structure and both sides and shield constructs the section of jurisdiction veneer, waterproof shock insulator adopts rubber materials.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. this scheme is opened in advance in the bottom of shield tunnel and is equipped with the drainage canal and be provided with the water guide backup pad in the inside of drainage canal, can guarantee the intensity of shield tunnel bottom on the one hand, and on the other hand can reach the purpose of drainage, avoids the shield tunnel bottom the condition that ponding appears.

2. The shield is provided with compound waterproof construction between the section of jurisdiction, can improve the leakproofness and the water-proof effects of section of jurisdiction junction to a great extent.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a partial structural view of the utility model A;

fig. 3 is the test chart of the water guide support plate of the present invention.

In the figure, the water-saving drainage device comprises 1-shield pipe piece, 2-drainage channel, 3-water guide plate, 4-cambered surface support plate, 5-water guide flow channel, 6-waterproof structure, 7-sealing groove, 8-waterproof spacer, 9-clamping groove, 10-water inlet hole, 11-drainage flow channel, 12-water inlet cavity channel, 13-auxiliary groove and 14-main groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a composite waterproof structure of a shield tunnel comprises the shield tunnel, the shield tunnel is formed by splicing a plurality of groups of shield segments 1, a drainage channel 2 is arranged under the shield tunnel, a water guide supporting plate is arranged in the drainage channel 2, the water guide supporting plate is integrally of an I-shaped structure and comprises a water guide plate 3 and cambered supporting plates 4 fixed at the upper end and the lower end of the water guide plate 3, the water guide plate 3 is arranged in the drainage channel 2 in a built-in mode, a flow guide runner 5 is formed in the water guide plate 3 in a processing mode, the cambered supporting plate 5 positioned above is connected with the bottom of the shield tunnel, a waterproof structure 6 is arranged at the joint of two adjacent groups of shield segments 1, the waterproof structure 6 comprises a sealing groove 7 arranged at the outer side of the joint of the shield segments 1 and a waterproof spacer 8 arranged in the sealing groove 7, clamping grooves 9 are arranged at the two sides of the sealing groove 7, the clamping grooves, the strip-shaped convex blocks are arranged in the clamping grooves 9.

In a further improvement, as shown in fig. 3: the side wall of the water guide plate 3 is uniformly provided with a plurality of groups of water inlet holes 10, the water inlet holes 10 are communicated with the water guide flow channel 5, the bottom of the water guide flow channel 5 is processed and formed with a drainage flow channel 11, and the drainage flow channel 11 is of a concave cambered surface structure.

In a further improvement, as shown in fig. 3: the surface of the cambered surface supporting plate 4 is uniformly provided with a plurality of groups of water inlet channels 12, and the cambered surface supporting plate 4 positioned below is of a curved surface structure with the middle part downwards concave, so that the water seepage along the upper edge of the outer wall of the shield tunnel can be concentrated and guided through the water inlet channels 12.

Further improved, as shown in fig. 2: the whole seal groove 7 that is T type structure and including the auxiliary tank 13 that is located the lower extreme and the main tank 14 that is located the upper end, auxiliary tank 13 is linked together with main tank 14, and the specification of main tank 14 is greater than auxiliary tank 13, divide into main tank 14 with auxiliary tank 13 seal groove 7 can be abundant place in seal groove 7 in the bottom with waterproof spacer 8, reach better sealed effect.

Specifically, the surface of waterproof shock insulator 8 is cambered surface structure and both sides and the veneer of shield structure section of jurisdiction 1, and waterproof shock insulator 8 adopts rubber materials, thereby such design is convenient for the periphery of waterproof shock insulator 8 and the surface of shield structure section of jurisdiction 1 closely laminate and reach better sealed purpose.

When in use: the utility model discloses shield constructs section of jurisdiction 1 is being convenient for to pre-open and is being equipped with seal groove 7 at the in-process of making, at the built-in waterproof shock insulator 8 of junction, place in seal groove 7 in the bottom of waterproof shock insulator 8 and place in the protruding position in the outside in draw-in groove 9 and through the mode of veneer with waterproof shock insulator 8 laminating in seal groove 7, drain channel 2 has been seted up in advance in the bottom in tunnel and will drain channel 2 to there being the water guide backup pad, the in-process that will be located the top of shield tunnel installation is laminated with the bottom in shield tunnel and is carried out fixed mounting through the bolt, it has water suction pipe to select to embed at water guide runner 5 as required, water suction pipe's the outside is connected with the pump and conveniently carries out mechanical drainage, avoid inside water to take place to be detained.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a shield tunnel composite waterproof structure, includes the shield tunnel, the shield tunnel is formed by a plurality of shield of group section of jurisdiction (1) concatenation, its characterized in that: a drainage channel (2) is arranged under the shield tunnel, a water guide supporting plate is arranged in the drainage channel (2), the water guide supporting plate is integrally of an I-shaped structure and comprises a water guide plate (3) and cambered surface supporting plates (4) fixed at the upper end and the lower end of the water guide plate (3), a water guide runner (5) is arranged in the drainage channel (2) in the water guide plate (3) in a processing mode, the cambered surface supporting plates (4) positioned above are connected with the bottom of the shield tunnel, a waterproof structure (6) is arranged at the joint of two adjacent sets of shield segments (1), the waterproof structure (6) comprises a sealing groove (7) arranged at the outer side of the joint of the shield segments (1) and a waterproof spacer (8) arranged in the sealing groove (7), clamping grooves (9) are arranged on two sides of the sealing groove (7), and the clamping grooves (9) are arranged on the shield segments (1), and the two ends of the outer side of the waterproof spacer (8) are arranged in the clamping grooves (9).

2. The composite waterproof structure of the shield tunnel according to claim 1, characterized in that: the side wall of the water guide plate (3) is uniformly provided with a plurality of groups of water inlet holes (10), the water inlet holes (10) are communicated with the water guide flow channel (5), the bottom of the water guide flow channel (5) is processed and formed with a drainage flow channel (11), and the drainage flow channel (11) is of a concave cambered surface structure.

3. The composite waterproof structure of the shield tunnel according to claim 1, characterized in that: the surface of the cambered surface supporting plate (4) is uniformly provided with a plurality of groups of water inlet channels (12).

4. The composite waterproof structure of the shield tunnel according to claim 1, characterized in that: the whole seal groove (7) is of a T-shaped structure and comprises an auxiliary groove (13) located at the lower end and a main groove (14) located at the upper end, the auxiliary groove (13) is communicated with the main groove (14), and the specification of the main groove (14) is larger than that of the auxiliary groove (13).

5. The composite waterproof structure of the shield tunnel according to claim 1, characterized in that: the surface of the waterproof spacer (8) is of an arc surface structure, two sides of the waterproof spacer are glued with the shield segment (1), and the waterproof spacer (8) is made of rubber materials.