CN214994115U

CN214994115U - Waterproof structure of combined water stop belt at deformation joint of fracture zone tunnel

Info

Publication number: CN214994115U
Application number: CN202120724133.9U
Authority: CN
Inventors: 黄玉彬; 易祖辉
Original assignee: Sichuan Chuanjiao Road and Bridge Co Ltd
Current assignee: Sichuan Chuanjiao Road and Bridge Co Ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-12-03
Anticipated expiration: 2031-04-09

Abstract

The utility model provides a rupture area tunnel movement joint department combination waterstop waterproof construction, includes first mounting, and first mounting cross-section is the T metalwork, respectively is connected with the one end of a first waterstop in the both sides of T type bottom plate, the other end of two first waterstops is connected in tunnel secondary lining structure, the T type top pterygoid lamina of first mounting through a plurality of first bolted connection in tunnel primary lining structure's bottom, is equipped with tunnel secondary lining distribution muscle in tunnel secondary lining structure, and the second waterstop passes tunnel secondary lining structure, and its both ends are connected on tunnel secondary lining distribution muscle.

Description

Waterproof structure of combined water stop belt at deformation joint of fracture zone tunnel

Technical Field

The utility model belongs to the technical field of tunnel engineering construction is waterproof, concretely relates to rupture zone tunnel deformation joint department makes up waterstop waterproof construction.

Background

The earthquake fracture zone activity is the main reason for damaging the tunnel and is caused by the uneven deformation of the tunnel caused by the uneven settlement of soil bodies on two sides of the crack, so that the influence of the fracture zone on the subway tunnel is mainly caused by the bending deformation of the tunnel due to the stress change; when the fracture zone moves, soil around the tunnel moves up and down to generate displacement, and the tunnel structure of the earthquake fracture zone prevents the soil at the position from displacing, so that the tunnel structure is sheared, and the shearing stress is increased along with the increase of the settlement amount of the earth surface; secondly, the longitudinal stress on two sides of the fracture zone is sharply increased, the top of the tunnel in the upper disc range is pressed, the bottom of the tunnel is pulled, and the lower disc is reversed; the maximum tensile stress and the maximum compressive stress basically appear on two sides of the tunnel 15-20 m away from the crack, so that the maximum tensile stress and the maximum compressive stress are the most dangerous sections of the longitudinal stress of the tunnel in the range; when the activity of the fracture zone reaches 200mm, the subway tunnel lining structure is cracked and damaged, so that the subway tunnel lining structure must be provided with special deformation joints to adapt to large deformation of the fracture zone. Chinese utility model ] CN202020651677.2 provides a rupture zone tunnel movement joint department makes up waterstop waterproof construction, nevertheless it when the movement joint gap is great, surpasss waterproof restriction easily, breaks the waterproof area, so the utility model provides a rupture zone tunnel movement joint department makes up waterstop waterproof construction that can be applicable to great deformation volume.

SUMMERY OF THE UTILITY MODEL

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a rupture area tunnel movement joint department combination waterstop waterproof construction, includes first mounting, and first mounting cross-section is the T metalwork, respectively is connected with the one end of a first waterstop in the both sides of T type bottom plate, the other end of two first waterstops is connected in tunnel secondary lining structure, the T type top pterygoid lamina of first mounting through a plurality of first bolted connection in the bottom of tunnel primary lining structure (be equipped with tunnel secondary lining distribution muscle in tunnel secondary lining structure, the second waterstop passes tunnel secondary lining structure, and its both ends are connected on tunnel secondary lining distribution muscle.

Preferably, the first water stop is a W-shaped water stop, one end of the first water stop is embedded into the tunnel secondary lining structure, and the other end of the first water stop is connected with the first fixing piece (in a sealing manner).

Preferably, be equipped with the connector link in the tunnel secondary lining structure, the connector link is put into when tunnel secondary lining structure is pour, the one end of connector link is connected on tunnel secondary lining distribution muscle, and the other end is connected in the one end of second waterstop, the second waterstop is U type waterstop.

Preferably, the first bolt is a chemical fastening bolt having a diameter of 18mmX55 mm.

Preferably, the deformation joint bottom is equipped with the water receiving box, and the water receiving box still is equipped with waterproof rubber on the contact surface of water receiving box and tunnel secondary lining structure through second bolt butt in the bottom of tunnel secondary lining structure.

To sum up, compared with the prior art, the utility model, have following advantage: through two first waterstops for the waterstop structure has better extensibility than single waterstop structure, makes it can be adapted to the great deformation gap department of deformation volume.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Wherein the reference numbers are as follows:

1-a tunnel primary lining structure; 2-a tunnel secondary lining structure; 3-tunnel secondary lining distribution ribs; 4-a first fixing member; 5-a housing; 6-lamp bowl; 7-electric lens; 8-a water receiving box; 9-connecting buckle.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Examples

The utility model provides a rupture area tunnel movement joint department combination waterstop waterproof construction, includes first mounting 4, and 4 cross-sections of first mounting are the T metalwork, respectively are connected with the one end of a first waterstop 6 in the both sides of T type bottom plate, the other end of two first waterstops 6 is connected in tunnel secondary lining structure 2. By such a design, the stretched length of the first water band 6 can be effectively increased.

The T-shaped top wing plate of the first fixing piece 4 is connected to the bottom of the primary tunnel lining structure 1 through a plurality of first bolts 5. The first bolt 5 is a chemical fastening anchor with a diameter of 18mmX55 mm. The chemical anchor bolt can effectively accelerate the construction process and is not easy to fall off when large deformation occurs. In the embodiment, the first water stop 6 is a W-shaped water stop, one end of the first water stop 6 is embedded into the tunnel secondary lining structure 2, and the other end is connected with the first fixing member 4 in a sealing manner. The W-shaped water stop has good stretchability.

Be equipped with two lining distribution muscle 3 in tunnel secondary lining structure 2, second waterstop 7 passes tunnel secondary lining structure 2, and connector link 9 is put into when tunnel secondary lining structure 2 is pour, the tunnel construction's of being convenient for process to the two lining distribution muscle 3 in tunnel of having avoided water corrosion has been avoided. One end of the connecting buckle 9 is connected to the tunnel secondary lining distribution rib 3, the other end is connected to one end of the second water stop belt 7, the second water stop belt 7 is a U-shaped water stop belt, the thickness of the second water stop belt is larger than that of the first water stop belt 3, and water leakage is further prevented.

Be equipped with water receiving box 8 bottom the movement joint, water receiving box 8 still is equipped with waterproof rubber on the contact surface of water receiving box 8 and tunnel secondary lining structure 2 through second bolt butt in tunnel secondary lining structure 2's bottom.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A combined waterstop waterproof structure at the deformation joint of a fracture zone tunnel, characterized in that: it comprises a first fixing member (4), and the cross-section of the first fixing member (4) is a T metal member, which is located on both sides of the T-shaped bottom plate. Each is connected with one end of a first waterstop (6), the other ends of the two first waterstops (6) are connected to the tunnel secondary lining structure (2), and the first fixing member (4) The T-shaped top wing plate is connected to the bottom of the tunnel primary lining structure (1) through a number of first bolts (5). The waterstop (7) passes through the tunnel secondary lining structure (2), and its two ends are connected to the tunnel secondary lining distribution bars (3).

2 . The waterproof structure of a combined waterstop at the deformation joint of a fractured zone tunnel according to claim 1 , wherein the first waterstop ( 6 ) is a W-shaped waterstop, and the first waterstop One end of (6) is embedded in the tunnel secondary lining structure (2), and the other end is sealed with the first fixing member (4).

3. The waterproof structure of a combined waterstop at the deformation joint of a tunnel in a fracture zone according to claim 2, characterized in that: the secondary lining structure (2) of the tunnel is provided with a connecting buckle (9), and the connecting buckle (9) When the secondary lining structure (2) of the tunnel is poured, one end of the connecting buckle (9) is connected to the distribution rib (3) of the secondary lining of the tunnel, and the other end is connected to one end of the second waterstop (7). The second waterstop (7) is a U-shaped waterstop.

4 . The waterproof structure of a combined waterstop at the deformation seam of a tunnel in a fracture zone according to claim 3 , wherein the first bolt ( 5 ) is a chemical fastening anchor bolt with a diameter of 18mm×55mm. 5 .

5. The waterproof structure of a combined waterstop at the deformation seam of a fractured zone tunnel according to claim 4, characterized in that: a water receiving box (8) is arranged at the bottom of the deformation seam, and the water receiving box (8) passes through the second The bolts abut on the bottom of the tunnel secondary lining structure (2), and waterproof rubber is also provided on the contact surface of the water receiving box (8) and the tunnel secondary lining structure (2).