CN218669400U

CN218669400U - Crowded native device of rubber bag slip casting

Info

Publication number: CN218669400U
Application number: CN202222952885.8U
Authority: CN
Inventors: 魏慧芬; 黄大维; 刘家璇; 詹涛; 张箭; 谢丽辉; 单生彪; 宋森; 赵梽錡
Original assignee: East China Jiaotong University
Current assignee: East China Jiaotong University
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-03-21
Anticipated expiration: 2032-11-07

Abstract

The utility model discloses a crowded native device of rubber bag slip casting, include the end cone and locate rubber bag on the end cone, install a bottom seal, open-top's card pipe in the rubber bag, card pipe open-top extends to outside the rubber bag and with slip casting union coupling, the rubber bag with slip casting outside of tubes be equipped with one can dismantle connect in the steel casing pipe of end cone, the grout outlet has been seted up on the lateral wall of card pipe middle part. The utility model has the advantages that: the grouting material is injected into the rubber bag, so that the phenomena that the slurry is subjected to osmotic diffusion and splitting diffusion in the stratum during grouting or runs along the outer wall of the grouting pipe can be avoided, a good extrusion effect can be generated on the stratum during grouting, and the method is particularly suitable for extruding and rectifying the underground structure by a grouting method.

Description

Crowded native device of rubber bag slip casting

Technical Field

The utility model belongs to the technical field of the technique of slip casting device and specifically relates to a crowded native device of rubber bag slip casting.

Background

The shield tunnel has the advantages that the number of segment joints is large, the longitudinal rigidity and the transverse rigidity of the shield tunnel are small, longitudinal deflection and overlarge deformation of the cross section are easy to occur under the influence of surrounding engineering activities after the tunnel is built, so that the segment joints are damaged, water leakage and line type deterioration are caused, track diseases are increased, the service performance of the shield tunnel is influenced, and even the operation safety of subway trains is endangered.

The existing research shows that when the shield tunnel is deformed excessively, the soil body can be extruded through grouting to enable the shield tunnel to be deformed again, compared with other tunnel deformation repairing methods, the grouting tunnel deformation recovery repairing technology has the advantages of being low in cost, high in efficiency and the like, and meanwhile the internal force of the tunnel can be improved. However, when grouting into the formation, the additional load generated by the grouting is limited due to the fact that the grout diffuses and splits into the surrounding formation or runs out along the outer wall of the grouting pipe, and thus the effect of recovering the deformation of the shield tunnel caused by the grouting is also very limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a crowded native device of rubber bag slip casting according to above-mentioned prior art, put into the stratum through the end cone with the rubber bag under the protection of steel casing pipe, after taking off the steel casing pipe, slip casting in the rubber bag is followed to the rethread slip casting pipe, and the thick liquid takes place the infiltration diffusion and splits diffusion in the stratum when can avoiding the slip casting, or takes place to run the thick liquid along the slip casting pipe outer wall.

The utility model discloses the purpose is realized accomplishing by following technical scheme:

the utility model provides a crowded native device of rubber bag slip casting which characterized in that: the grouting device comprises a bottom cone and a rubber bag arranged on the bottom cone, wherein a clamping pipe with a closed bottom and an open top is arranged in the rubber bag, the open top of the clamping pipe extends out of the rubber bag and is connected with a grouting pipe, a steel sleeve detachably connected with the bottom cone is arranged outside the rubber bag and the grouting pipe, and a grout outlet is formed in the side wall of the middle part of the clamping pipe.

The middle part of the clamping pipe is provided with an annular groove along the circumferential direction of the side wall of the clamping pipe, the slurry outlet hole is positioned on the annular groove, and a rubber hoop matched with the annular groove is installed in the annular groove to seal the slurry outlet hole.

The clamping pipe is connected with the grouting pipe through a clamping cap.

The bottom of the clamping pipe is in threaded connection with the bottom cone so as to fix the bottom of the rubber bag; the top of the clamping pipe is in threaded connection with the clamping cap so as to fix the top of the rubber bag.

The clamping cap is in threaded connection with the grouting pipe.

The utility model has the advantages that: the grouting material is injected into the rubber bag, so that the phenomena that the slurry is subjected to osmotic diffusion and splitting diffusion in the stratum during grouting or runs along the grouting pipe can be avoided, a good extrusion effect can be generated on the stratum during grouting, and the grouting pipe is particularly suitable for extruding and correcting the underground structure by a grouting method.

Drawings

Fig. 1 is an overall schematic view of the grouting device of the present invention;

FIG. 2 is a schematic view of the grouting device of the present invention after the steel casing is pulled out;

fig. 3 is a schematic diagram of the grouting device of the utility model after grouting into the rubber bag.

Detailed Description

The features of the present invention and other related features are described in further detail below by way of example in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:

as shown in figures 1-3, the marks 1-9 in the figures are respectively represented as a bottom cone 1, a rubber bag 2, a clamping tube 3, a clamping cap 4, a grouting tube 5, a steel sleeve 6, a grout outlet 7, a rubber hoop 8 and grout 9.

The embodiment is as follows: as shown in fig. 1-3, the embodiment relates to a rubber bag grouting soil squeezing device, which mainly comprises a bottom cone 1 and a rubber bag 2, wherein the rubber bag 2 is arranged on the bottom cone 1, a clamping tube 3 is arranged in the rubber bag 2, the bottom of the clamping tube 3 is closed, the top of the clamping tube is open, and the top of the clamping tube 3 extends out of the rubber bag 2 and is connected with a grouting tube 5. A steel sleeve 6 is arranged outside the rubber bag 2 and the grouting pipe 5, and the steel sleeve 6 is detachably connected with the bottom cone 1. The middle part of the clamping pipe 3 is provided with a plurality of annular grooves along the circumferential direction of the side wall of the clamping pipe, each annular groove is provided with a plurality of slurry outlet holes 7, wherein the slurry outlet holes 7 can be arranged along the whole length or the local part of the circumferential direction of the annular groove, and each annular groove is internally provided with the same rubber hoop 8 matched with the annular groove so as to seal the slurry outlet holes 7. In this embodiment, the number of the annular groove, the grout outlet 7 and the rubber collar 8 is one, and the grout outlet 7 is partially arranged along the circumferential direction of the annular groove.

As shown in fig. 1-3, the clamping tube 3 is connected with the grouting tube 5 through a clamping cap 4, wherein the bottom of the clamping tube 3 is connected with the bottom cone 1 through a thread so as to fix the bottom of the rubber bag 2; the top of the clamping pipe 3 is in threaded connection with the clamping cap 4 so as to fix the top of the rubber bag 2; the clamping cap 4 is in threaded connection with the grouting pipe 5.

As shown in fig. 1 to 3, the present embodiment further includes the following construction method: placing the rubber bag 2 into the stratum through the bottom cone 1 under the protection of the steel sleeve 6, and grouting the rubber bag 2 through the grouting pipe 5 after taking off the steel sleeve 6; and after grouting is finished, the grouting pipe 5 is screwed to be disconnected with the clamping cap 4, and finally the grouting pipe 5 is pulled out.

The beneficial technical effects of this embodiment do: the grouting material is injected into the rubber bag, so that the phenomena that the slurry is subjected to osmotic diffusion and splitting diffusion in the stratum during grouting or runs along the grouting pipe can be avoided, a good extrusion force effect can be generated on the stratum during grouting, and the grouting pipe is particularly suitable for extruding and correcting the underground structure by a grouting method.

Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, the description thereof is not repeated herein.

Claims

1. The utility model provides a crowded native device of rubber bag slip casting which characterized in that: the grouting device comprises a bottom cone and a rubber bag arranged on the bottom cone, wherein a clamping pipe with a closed bottom and an open top is arranged in the rubber bag, the open top of the clamping pipe extends out of the rubber bag and is connected with a grouting pipe, a steel sleeve detachably connected with the bottom cone is arranged outside the rubber bag and the grouting pipe, and a grout outlet is formed in the side wall of the middle part of the clamping pipe.

2. The rubber bag grouting soil-squeezing device as claimed in claim 1, wherein: the middle part of the clamping pipe is provided with an annular groove along the circumferential direction of the side wall of the clamping pipe, the slurry outlet hole is positioned on the annular groove, and a rubber hoop matched with the annular groove is installed in the annular groove to seal the slurry outlet hole.

3. The rubber bag grouting soil squeezing device as claimed in claim 1, wherein: the clamping pipe is connected with the grouting pipe through a clamping cap.

4. The rubber bag grouting soil squeezing device as claimed in claim 3, wherein: the bottom of the clamping pipe is in threaded connection with the bottom cone so as to fix the bottom of the rubber bag; the top of the clamping pipe is in threaded connection with the clamping cap so as to fix the top of the rubber bag.

5. The rubber bag grouting soil squeezing device as claimed in claim 3, wherein: the clamping cap is in threaded connection with the grouting pipe.