CN219081611U

CN219081611U - Lining waterproof board exposes and cavity is planted muscle grout and is repaired structure

Info

Publication number: CN219081611U
Application number: CN202320117452.2U
Authority: CN
Inventors: 包振江; 赵光红; 潘丽; 梁云飞
Original assignee: Hubei Provincial Road & Bridge Co ltd
Current assignee: Hubei Provincial Road & Bridge Co ltd
Priority date: 2023-01-12
Filing date: 2023-01-12
Publication date: 2023-05-26
Anticipated expiration: 2033-01-12

Abstract

The scheme comprises repairing the waterproof board, wherein the repairing waterproof board is used for replacing a damaged old waterproof board in a waterproof layer of surrounding rock; the secondary lining chiseling layer is dug at a gap where the secondary lining of the surrounding rock exists, and is provided with a notch groove; reinforcing steel mesh sheets are implanted in the gaps; the sizing hole sealing steel plate is embedded in the notch groove and can seal and control the air space, and a plurality of anchor rod holes are formed in the sizing hole sealing steel plate so as to be fixed on the secondary lining through anchor rods; grouting holes are reserved at the top of the finalized hole sealing steel plate, so that shrinkage-free self-compaction concrete closed gaps can be injected through the grouting holes. The method can solve the problem of later-stage water seepage of lining reinforcement, the finalized hole sealing steel plate cannot invade the limit of a tunnel, normal use of the tunnel is not affected, grouting reinforcement effect is guaranteed, safety is good, construction cost is low, and good economic and technical benefits are achieved.

Description

Lining waterproof board exposes and cavity is planted muscle grout and is repaired structure

Technical Field

The application relates to the technical field of constructional engineering, in particular to a grouting repairing structure for exposed lining waterproof plates and hollow bar planting.

Background

Along with the vigorous development of highway construction in China, the tunnel has increasingly remarkable effects for improving linearity and overcoming elevation barriers, and the scale of the tunnel is continuously increased. Tunnel defects such as insufficient lining thickness, lining cracks, lining voids and leakage water, however, can severely reduce lining structure durability and even jeopardize tunnel safety.

The current reinforcement scheme has two lining concrete structure reinforcements, stock adds the ripple steel sheet and consolidates, two lining local demolishs the rework, two lining full ring demolishs the rework, establishes reinforced concrete sleeve lining, takes off the position slip casting filling etc. and there are following several problems in the traditional mode work progress: (1) The two liners are usually only reinforced, so that the repair of the waterproof board is neglected, and the water seepage is serious in the later period of maintenance and reinforcement; (2) The reinforced steel plate protrudes too much and seriously invades the tunnel limit, which affects normal use; (3) In the grouting process of the void part, cement slurry leaks seriously, so that the workability of concrete is affected, the honeycomb phenomenon of the concrete is generated, and the reinforcing effect is affected.

In order to solve the problems, a simple and effective structure for repairing exposed lining waterproof plates and hollow embedded rib grouting is needed, and the problems in the reinforcement process of the active tunnel are solved.

Disclosure of Invention

The purpose of this application is to the above-mentioned problem that exists among the prior art, provides lining waterproof board and exposes and cavity planting muscle grout repair structure.

In order to achieve the purpose of the application, the application adopts the following technical scheme: the structure for repairing the exposed lining waterproof plate and the hollow embedded bar grouting comprises:

repairing the waterproof board, wherein the repairing waterproof board is used for replacing a damaged old waterproof board in a waterproof layer of surrounding rock;

the secondary lining chiseling layer is dug at a gap where the secondary lining of the surrounding rock exists, and is provided with a notch groove;

reinforcing steel mesh sheets are implanted in the gaps;

the sizing hole sealing steel plate is embedded in the notch groove and can seal and control the air space, and a plurality of anchor rod holes are formed in the sizing hole sealing steel plate so as to be fixed on the secondary lining through anchor rods;

grouting holes are reserved at the top of the finalized hole sealing steel plate, so that shrinkage-free self-compaction concrete closed gaps can be injected through the grouting holes.

Further, the depth of the notch groove is the thickness of the finalized hole sealing steel plate.

Further, the size of the sizing hole sealing steel plate is the chiseling size of the gap, two ends of the sizing hole sealing steel plate are embedded into the notch grooves, and the bottom is flush with the surface of the secondary lining.

Further, a circle of waterproof rubber is arranged around the finalized hole sealing steel plate, and the waterproof rubber is positioned in a gap between the finalized hole sealing steel plate and the notch groove.

Compared with the prior art, the application has the following beneficial effects:

1. according to the method, the waterproof plates with the same model can be used for repairing, so that the problem of water seepage in the later stage of lining reinforcement is solved;

2. according to the method, the notch groove is arranged to embed the finalized hole sealing steel plate, the bottom surface of the finalized hole sealing steel plate is flush with the secondary lining, the tunnel limit cannot be invaded, and the normal use of the tunnel is not affected;

3. according to the method, the waterproof rubber is arranged around the finalized hole sealing steel plate, so that the problem of cement slurry leakage in the grouting process of the void part is effectively solved, and the grouting reinforcement effect is ensured;

the anchor rod and the hole sealing steel plate do not need to be dismantled in the later reinforcement period, and the lining reinforcement strength is effectively enhanced through grouting reinforcement and steel plate reinforcement double-layer insurance.

Drawings

FIG. 1 is a schematic illustration of an active tunnel lining void structure;

FIG. 2 is a schematic illustration of an active tunnel replacement flashing;

FIG. 3 is an overall view of a grouting repairing structure of an active tunnel lining cavity;

FIG. 4 is a partial enlarged view of a grouting repairing structure of an active tunnel lining cavity;

fig. 5 is a structural view of the finalized hole sealing steel plate of the present application.

Wherein: 1. surrounding rock; 2. primary support; 3. a waterproof layer; 4. a void; 5. secondary lining; 6-1, repairing the waterproof board; 6-2, old waterproof board; 7. chiseling the second lining layer; 8. reinforcing steel bar meshes; 9. non-shrinkage self-compaction concrete; 10. a bolt; 11. shaping the hole sealing steel plate; 12. a notch groove; 13. an anchor rod hole; 14. grouting pipe; 15. waterproof rubber; 16. grouting holes.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

It will be appreciated by those skilled in the art that in the disclosure of the present application, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present application.

Waterproof board installation standard and requirement, reinforcing bar net planting muscle mode, stock are beaten and are established the mode, from the mix proportion, grouting pressure, speed, the thick liquid volume of closely knit concrete slip casting, steel sheet embedding mode etc. this application is not repeated, the implementation of this application and structure is explained in focus.

As shown in fig. 1-2, the problem that the secondary lining 5 has a gap 4 is solved by the occurrence of breakage and water leakage of the tunnel waterproof layer 3 of surrounding rock of the current tunnel.

As shown in fig. 3 to 5, the grouting repairing structure for the exposed lining waterproof board and the hollow embedded bar comprises:

the repairing waterproof board 6-1 is used for replacing the damaged old waterproof board 6-2 in the waterproof layer 3 of the surrounding rock 1;

in this embodiment, the damaged old waterproof board 6-2 is cut off, the old waterproof board 6-2 is a damaged waterproof board, the chiseling depth and width of the two lining chiseling layers 7 at the two ends of the old waterproof board are determined according to the length and depth of the gap 4, the repair waterproof board 6-1 is replaced by reinstalling the repair waterproof board 6-1, and the repair waterproof board 6-1 is repaired by adopting the same type of waterproof board.

A secondary lining chiseling layer 7 which is dug at a gap 4 where the secondary lining 5 of the surrounding rock 1 exists, and the secondary lining chiseling layer 7 is provided with a notch groove 12;

reinforcing mesh 8, which is implanted in the gap 4;

a finalized hole sealing steel plate 11 embedded in the notch groove 12 and capable of sealing and controlling the gap 4, wherein a plurality of anchor rod holes 13 are arranged on the finalized hole sealing steel plate 11 so as to be fixed on the secondary lining 5 through anchor rods 10;

wherein, the shaping hole sealing steel plate 11 is locked in the notch groove 12 through the anchor rod 10, the end head of the anchor rod 10 is exposed short, the shaping hole sealing steel plate 11 is tightly attached to the secondary lining 5, and after grouting is finished, the anchor rod 10 and the shaping hole sealing steel plate 11 are not required to be removed in the later stage, so that the shaping hole sealing steel plate 11 seals the gap 4.

A grouting hole 16 is reserved at the top of the finalized hole sealing steel plate 11, so that the non-shrinkage self-compaction concrete 9 can be injected through the grouting hole 16 to seal the gap 4.

In this embodiment, the second lining chisel removing layer 7 is performed at the gap 4, the notch groove 12 is cut at the second lining chisel removing layer 7, the reinforcing steel mesh 8 is implanted after the gap 4 is cut, the reinforcing steel mesh 8 is implanted into the secondary lining 5 in a common reinforcing steel bar implanting mode, the shaped hole sealing steel plate 11 is embedded at the notch groove 12, the depth of the notch groove 12 is the thickness of the shaped hole sealing steel plate 11, the shaped hole sealing steel plate 11 seals the gap 4, the size of the shaped hole sealing steel plate 11 is the size of the gap 4 chisel, the two ends of the shaped hole sealing steel plate 11 are embedded into the notch groove 12, and the bottom of the shaped hole sealing steel plate is flush with the surface of the secondary lining 5.

Wherein, be provided with round waterproof rubber 15 around the shaping hole sealing steel sheet 11, waterproof rubber 15 is arranged in the gap between shaping hole sealing steel sheet 11 and notch groove 12, and grouting hole 16 is reserved to shaping hole sealing steel sheet 11 highest department, and grouting pipe 14 inserts grouting hole 16 back and pours into non-shrink self-compaction concrete 9 into the cavity into, and waterproof rubber 15 prevents the thick liquid effectively and runs off.

The detailed description of the present application is not prior art, and thus is not described in detail herein.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

Although specific terms are used more herein, the use of other terms is not precluded. These terms are used merely for convenience in describing and explaining the essence of the present application; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present application.

The present application is not limited to the above-mentioned preferred embodiments, and any person can obtain other products in various forms under the teaching of the present application, but any changes in shape or structure of the products are within the scope of protection of the present application.

Claims

1. Lining waterproof board exposes and cavity planting muscle grout repair structure, its characterized in that includes:

a reinforcing mesh implanted in the gap;

the finalized hole sealing steel plate is embedded and installed in the notch groove and can seal and control the gap, and a plurality of anchor rod holes are formed in the finalized hole sealing steel plate so as to be fixed on the secondary lining through anchor rods;

grouting holes are reserved at the top of the finalized hole sealing steel plate, so that non-shrinkage self-compaction concrete can be injected through the grouting holes to seal the gaps.

2. The structure according to claim 1, wherein the depth of the notch is the thickness of the finalized hole sealing steel plate.

3. The structure for grouting repairing the exposed lining waterproof plate and the hollow reinforcing bar according to claim 2, wherein the size of the sizing hole sealing steel plate is the chiseling size of the gap, two ends of the sizing hole sealing steel plate are embedded into the notch grooves, and the bottom is flush with the surface of the secondary lining.

4. The structure for repairing exposed and hollow reinforcing bar-embedded grouting of the lining waterproof plate according to claim 1, wherein a circle of waterproof rubber is arranged around the finalized hole-sealing steel plate, and the waterproof rubber is positioned in a gap between the finalized hole-sealing steel plate and the notch groove.