CN216892414U

CN216892414U - New old basement concrete junction pressure grouting is from waterproof construction

Info

Publication number: CN216892414U
Application number: CN202122776173.0U
Authority: CN
Inventors: 陈新军; 陈伟; 房庆海; 唐丽虹
Original assignee: Zhuhai Huaxin Development And Construction Co ltd
Current assignee: Zhuhai Huaxin Development And Construction Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-07-05
Anticipated expiration: 2031-11-12

Abstract

The utility model discloses a pressure grouting self-waterproof structure for a concrete joint of a new basement and an old basement, and relates to the technical field of building waterproof structures. According to the utility model, through the arrangement of the grouting pipe and the plurality of internal grouting holes on the grouting pipe, during pouring, epoxy polymer cement concrete mortar is used for pressure grouting, so that wood calcium or a water building agent can be properly added into the flowable cement slurry until uniform slurry emerges from each pressurizing section joint, the compactness of concrete at the joint surface of new and old concrete can be effectively improved, the new and old concrete can be well fused together, the self waterproof performance of the structure at the joint surface is improved, the safety degree is improved, the basement property maintenance is easier, and through the arrangement of the plurality of stop valves and the external grouting holes, sectional grouting can be carried out, and the overlong grouting surface is prevented.

Description

New old basement concrete junction pressure grouting is from waterproof construction

Technical Field

The utility model relates to the technical field of building waterproof structures, in particular to a pressure grouting self-waterproof structure for a concrete joint of a new basement and an old basement.

Background

In the engineering, the connection condition of a newly-built basement and an old basement is more, the conventional treatment method generally adopts measures of manually chiseling the joint surface of the old basement, pouring and tamping concrete after bar planting, and performing leakage repairing and the like if a water leakage phenomenon occurs in the subsequent use process. The method has the advantages that the durability of the leakage repair measures is poor, the waterproof leakage repair is needed after more than 10 years generally, and in addition, the concrete compactness at the new and old concrete joint of the side wall of the basement is poor, so the reinforcing steel bars are easy to corrode.

Therefore, it is necessary to invent a pressure grouting self-waterproofing structure for concrete joints of new and old basements to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pressure grouting self-waterproof structure for a concrete joint of a new basement and an old basement so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: new old basement concrete joint department pressure grout is from waterproof construction, including new wall body and old wall body, the inside wall of old wall body is provided with new wall body, the installation is provided with the slip casting pipe between new wall body and the old wall body, the fixed reinforcement muscle that is provided with in one side that the slip casting pipe is close to old wall body, and inside the one end fixed insertion old wall body of reinforcement muscle, the inside slip casting hole of offering a plurality of equidistant distributions that are is run through to one side symmetry that the slip casting pipe is close to old wall body, the fixed a plurality of outside slip casting holes that run through of one side that old wall body was kept away from to the slip casting pipe, the inside fixed mounting of slip casting pipe is provided with a plurality of flow stopping valves.

Preferably, the slots are symmetrically formed in the inner side wall of the old wall body, new wall side wall reinforcing steel bars are fixedly arranged on two sides of the new wall body, and one ends of the new wall side wall reinforcing steel bars extend to the bottoms of the slots.

Preferably, the reinforcing ribs are arranged in a plurality of and are distributed at equal intervals.

Preferably, the joint surface of the old wall body and the new wall body is roughened, and grouting pipe seals are fixedly arranged at two ends of each grouting pipe.

The utility model has the technical effects and advantages that:

according to the utility model, through the arrangement of the grouting pipe and the plurality of internal grouting holes on the grouting pipe, during pouring, epoxy polymer cement concrete mortar is used for pressure grouting, so that calcium lignosulfonate or a water building agent can be properly added into the flowable cement paste until uniform slurry emerges from each pressurizing section joint, the compactness of concrete at the joint surface of new and old concrete can be effectively improved, the new and old concrete can be well fused together, the self waterproof performance of the structure at the joint surface is improved, the safety degree is improved, the basement property maintenance is easier, and through the arrangement of the plurality of stop valves and the external grouting holes, sectional grouting can be carried out, and the grouting surface is prevented from being overlong.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural diagram of a connection mode of a new wall and an old wall.

Fig. 3 is an enlarged view of the structure at a in fig. 2 according to the present invention.

In the figure: 1. a new wall body; 2. an old wall body; 3. a grouting pipe; 4. an inner grouting hole; 5. reinforcing ribs; 6. a slot; 7. new wall sidewall reinforcement; 8. sealing the grouting pipe; 9. a flow stop valve; 10. and an outer grouting hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a pressure grouting self-waterproof structure at a concrete joint of a new basement and an old basement as shown in figures 1-3, which comprises a new wall body 1 and an old wall body 2, wherein the inner side wall of the old wall body 2 is provided with the new wall body 1, a grouting pipe 3 is arranged between the new wall body 1 and the old wall body 2, one side of the grouting pipe 3 close to the old wall body 2 is fixedly provided with a reinforcing rib 5, one end of the reinforcing rib 5 is fixedly inserted into the old wall body 2, one side of the grouting pipe 3 close to the old wall body 2 is symmetrically provided with a plurality of inner grouting holes 4 which are distributed at equal intervals in a penetrating way, one side of the grouting pipe 3 far away from the old wall body 2 is fixedly provided with a plurality of outer grouting holes 10 in a penetrating way, the inner part of the grouting pipe 3 is fixedly provided with a plurality of stop valves 9, and when pouring is carried out, the epoxy polymer cement concrete mortar is used for pressure grouting, wood calcium or a water-building agent can be properly added into the cement paste for increasing fluidity until uniform grout emerges from each pressurizing section joint, the compactness of concrete at the joint surface of new and old concrete can be effectively improved, the new and old concrete is well fused together, the waterproof performance of the structure at the joint surface is improved, the safety degree is improved, the basement property maintenance is easier, and by the arrangement of the plurality of stop valves 9 and the external grouting holes 10, sectional grouting can be performed, and the grouting surface is prevented from being overlong.

Further, slot 6 has been seted up to old wall body 2's inside wall symmetry, new wall body 1's both sides are all fixed and are provided with new wall lateral wall reinforcing bar 7, and the one end of new wall lateral wall reinforcing bar 7 extends to the slot 6 tank bottom, old wall body 2 sets up with the faying face department chisel hair of new wall body 1, and the chisel hair setting can increase concrete contact area, improves the stability that new wall body 1 and old wall body 2 are connected, reinforcement bar 5 is provided with a plurality ofly, and a plurality of reinforcement bar 5 are equidistant distribution, the both ends of slip casting pipe 3 are all fixed and are provided with the slip casting pipe and seal 8.

The working principle of the utility model is as follows:

when pouring, firstly, a grouting pipe 3 with the diameter of 50mm is pre-buried in the middle of the joint of new and old concrete, two rows of internal grouting holes 4 with the diameter of 3mm and the distance of 300mm are formed on the joint of the grouting pipe 3 and the old concrete, then, new wall pouring is carried out, before the initial setting of newly poured concrete, the grouting pipe 3 uses flowing clear water to wash an inner pipe to prevent the grouting holes 4 from being blocked by cement paste, before the final setting of the newly poured concrete, epoxy polymer cement concrete mortar is used for pressure grouting, in order to increase the fluidity cement paste, calcium wood or a water building agent can be properly added, the cement paste is filtered by a filter screen with the thickness of 3mmx3mm, the grouting pressure is generally 2-3MPa, until the uniform paste liquid emerges from each joint of a pressurizing section, in order to prevent the grouting surface, the grouting pipe can be sectionally set with the length of 9a, the method of sectional grouting is adopted, the sectional grouting is carried out through a plurality of 10a, and finally, the exposed part of the grouting pipe 3 can be cut after the strength of the grouting pipe reaches the grouting, and (5) making a decorative surface layer.

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 or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. New and old basement concrete joint pressure grout is from waterproof construction, its characterized in that: including new wall body (1) and old wall body (2), the inside wall of old wall body (2) is provided with new wall body (1), the installation is provided with slip casting pipe (3) between new wall body (1) and the old wall body (2), one side that slip casting pipe (3) are close to old wall body (2) is fixed and is provided with reinforcing bar (5), and inside the one end fixed insertion old wall body (2) of reinforcing bar (5), one side symmetry that slip casting pipe (3) are close to old wall body (2) runs through and sets up a plurality of inside slip casting holes (4) that are equidistant distribution, one side that old wall body (2) were kept away from in slip casting pipe (3) is fixed to run through and is provided with a plurality of outside slip casting holes (10), the inside fixed mounting of slip casting pipe (3) is provided with a plurality of flow stopping valves (9).

2. The new and old basement concrete joint pressure grouting self-waterproofing structure according to claim 1, characterized in that: slot (6) have been seted up to the inside wall symmetry of old wall body (2), the both sides of new wall body (1) are all fixed and are provided with new wall lateral wall reinforcing bar (7), and the one end of new wall lateral wall reinforcing bar (7) extends to slot (6) tank bottom.

3. The new and old basement concrete joint pressure grouting self-waterproofing structure according to claim 2, characterized in that: the reinforcing ribs (5) are arranged in a plurality of numbers, and the reinforcing ribs (5) are distributed at equal intervals.

4. The new and old basement concrete joint pressure grouting self-waterproofing structure according to claim 3, characterized in that: and the joint surface of the old wall body (2) and the new wall body (1) is roughened, and grouting pipe seals (8) are fixedly arranged at two ends of the grouting pipe (3).