CN214997696U

CN214997696U - Subway tunnel segment wall post-grouting pipe

Info

Publication number: CN214997696U
Application number: CN202121153100.XU
Authority: CN
Inventors: 刘振帅; 曹印琪; 张珺; 张辉; 顾荣进; 刘文金; 陈乾
Original assignee: China Railway 11th Bureau Group Urban Rail Engineering Co Ltd
Current assignee: China Railway 11th Bureau Group Urban Rail Engineering Co Ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-12-03
Anticipated expiration: 2031-05-27

Abstract

The utility model discloses a subway tunnel section of jurisdiction post-mural grouting pipe, including the slip casting inner tube, the top of slip casting inner tube is glued there is the gag pipe, and the inner wall of slip casting inner tube splices there is the baffle, and the baffle splits into two the same semicircle chambeies with the cavity of slip casting inner tube, and the lateral wall equidistance of slip casting inner tube has seted up a plurality of interior pipe orifice, the slip casting outer tube has been cup jointed to the outer wall of slip casting inner tube, the top of baffle is glued there is the fixed plate, and the last fixed surface of fixed plate has compression spring one, and the top of compression spring one is fixed with the roof, gag pipe assembly has the feed plug, and the upper surface of feed plug is provided with the inlet pipe, and the lower part of feed plug sets up horizontal feeding side tube. The utility model discloses a set up feeding stopper and stopper mouth pipe sealed slip casting inner tube before slip casting and make external stone impurity can not fall into the slip casting inner tube, the baffle and the flabellum of cooperation slip casting inner tube stir the thick liquid and make the thick liquid intensive mixing improve the slip casting effect.

Description

Subway tunnel segment wall post-grouting pipe

Technical Field

The utility model relates to a subway construction technical field especially relates to a subway tunnel section of jurisdiction post grouting pipe.

Background

Subways are increasingly popularized in cities, some cities are located on soft soil foundations, the soft soil foundations are rheological weak strata with high water content, high void ratio, high sensitivity and low strength, and due to the influence of factors such as soil property of the strata around tunnels and construction activities of surrounding buildings, the integral settlement of the operating tunnels is easy to cause uneven differential settlement. At present, the water leakage disease of the pipe piece standard block is mainly treated by adopting the method of grouting behind the wall to fill the gap of the upstream face of the pipe piece, a protective layer is formed outside the pipe piece, and the permeation of underground water to the pipe piece is blocked.

Through the retrieval, chinese patent application number is CN 202021389801.9's patent, discloses a subway tunnel section of jurisdiction wall post-grouting pipe, including interior sleeve pipe, outer tube, ball valve and elastic ring, the section of jurisdiction on open and to have the blind hole, blind hole bottom open and to have the through-hole that link up the blind hole, interior sleeve pipe one end be equipped with the baffle, during the slip casting interior sleeve pipe arrange the blind hole in, elastic ring and outer tube cover on interior sleeve pipe, outer tube, elastic ring and baffle connect gradually, ball valve and interior bushing, outer tube and interior bushing threaded connection. A subway tunnel section of jurisdiction post-grouting pipe in above-mentioned patent exists following not enough: lack the condition that mixing arrangement easily appears the thick liquid separation to two thick liquids slip casting in-process during the slip casting pipe slip casting, the slip casting pipe does not seal, easily sneaks into dregs before the slip casting, all can influence the slip casting effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a subway tunnel segment wall post-grouting pipe.

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

a subway tunnel segment wall post-grouting pipe comprises a grouting inner pipe, wherein a plug pipe is glued at the top of the grouting inner pipe, and the inner wall of the grouting inner pipe is glued with a clapboard which divides the cavity of the grouting inner pipe into two identical semicircular cavities, and the side wall of the inner grouting pipe is equidistantly provided with a plurality of inner pipe ports, the outer wall of the inner grouting pipe is sleeved with an outer grouting pipe, the top end of the partition board is glued with a fixed plate, a first compression spring is fixed on the upper surface of the fixing plate, a top plate is fixed at the top end of the first compression spring, a feeding plug is matched with the plug opening pipe, the upper surface of the feeding plug is provided with a feeding pipe, the lower part of the feeding plug is provided with a horizontal feeding side pipe, the positions of the partition board at the two sides below the fixed plate are all connected with a support rod in a gluing way, and the one end that baffle was kept away from to branch is connected with the pivot, and the one end that branch was kept away from in the pivot is provided with the flabellum, the both sides equidistance of baffle is spliced has a plurality of rubber bag.

Furthermore, the outer wall of the inner grouting pipe is provided with a threaded ring at a position close to the upper end, a clamping block is arranged at the center of the outer wall of the bottom end of the inner grouting pipe, the side wall of the clamping block is provided with threads, the inner wall of the bottom end of the outer grouting pipe is provided with a threaded groove, and the clamping block is in threaded connection with the threaded groove.

Furthermore, a first thread groove is formed in the position, close to the top end, of the side wall of the grouting outer pipe, the first thread groove is matched with the thread ring in size, a plurality of outer pipe openings are formed in the side wall of the grouting outer pipe at equal intervals, the outer pipe openings are coaxial with the inner pipe openings, and grout is injected into external soil through the inner pipe openings and the outer pipe openings.

Furthermore, the position of the circumferential hole wall of the outer pipe orifice close to the inner pipe orifice is connected with a plurality of elastic ropes in an adhesive manner, one end of each elastic rope far away from the inner pipe orifice is connected with a stop block in an adhesive manner, the stop block is a hemisphere, and the port of one end of the outer pipe orifice far away from the inner pipe orifice is arranged to be hemispherical in size matched with the stop block.

Furthermore, the outer wall of the upper end of the grouting inner tube and the outer wall of the plug opening tube are provided with air bags, the air bags surround the outer wall of the plug opening tube, and the upper surface of each air bag is provided with an inflation inlet.

Furthermore, the inner wall of the bottom of the grouting inner tube is connected with a first compression spring, one end, close to the partition plate, of the first compression spring is connected with a bottom plate, and after slurry is injected, the bottom plate connected with the first compression spring plays a role in buffering, so that the pipe wall of the grouting pipe is prevented from bursting due to the fact that the pressure of the slurry is too high.

Furthermore, the outer wall of the outer grouting pipe is provided with a spiral ring groove at a position close to the lower end, the bottom end of the outer grouting pipe is welded with a conical head, and the conical head and the outer wall of the outer grouting pipe with the spiral part are convenient for forward installation of the outer grouting pipe in a grouting hole.

The utility model has the advantages that:

1. through the device that sets up feeding stopper and stopper mouth pipe, after the slip casting pipe installation advances to set up good slip casting hole in advance, the roof blocks the slip casting inner tube in the lumen of stopper mouth pipe under compression spring two's effect, make external stone impurity can not fall into the slip casting inner tube, when slip casting, in the feeding stopper inlet mouth pipe, press down the roof and make the feeding side pipe pass the upper portion that stopper mouth pipe inner chamber got into the slip casting inner tube, pour into the thick liquid that has pressure into the inlet pipe, the flabellum rotates under the impact of thick liquid, play the stirring thick liquid and make its effect of mixing more even, the rubber bag on the cooperation baffle, after the thick liquid pours into the slip casting inner tube into, the rubber bag has reduced the volume of slip casting inner tube, inwards the mouth of pipe with the thick liquid simultaneously, be convenient for go out the thick liquid.

2. Through the device that sets up slip casting inner tube and slip casting outer tube, slip casting inner tube and slip casting outer tube pass through threaded connection fixed, make slip casting inner tube and slip casting outer tube separation through rotatory slip casting inner tube after slip casting finishes, but reuse after the slip casting inner tube clearance, the dog of the hemisphere that the stretch cord that the while set up through the outer tube mouth of slip casting outer tube lateral wall makes the thick liquid can permeate soil through pushing away the dog to prevent during external impurity gets into the slip casting outer tube.

3. Through setting up the gasbag, after slip casting outer tube and slip casting inner tube installed, make the gasbag be full of gas, full gasbag plays support and cushioning effect, because the thick liquid has the higher pressure when preventing the slip casting and makes stopper mouthful pipe and slip casting inner tube vibrations make the not hard up influence slip casting effect of soil structure.

Drawings

Fig. 1 is a sectional view of a subway tunnel segment wall post-grouting pipe provided by the utility model;

fig. 2 is a schematic structural view of a grouting inner pipe of a subway tunnel segment wall post-grouting pipe provided by the utility model;

fig. 3 is the utility model provides a subway tunnel section of jurisdiction post grouting pipe's baffle and the schematic structure of flabellum.

In the figure: 1-grouting inner pipe, 2-grouting outer pipe, 3-stop block, 4-elastic rope, 5-inner pipe orifice, 6-spiral ring groove, 7-compression spring I, 8-clamping block, 9-conical head, 10-bottom plate, 11-partition plate, 12-rubber bag, 13-fan blade, 14-support rod, 15-fixing plate, 16-stopper pipe, 17-compression spring II, 18-top plate, 19-feeding pipe, 20-leakage-proof ring, 21-feeding stopper, 22-air bag, 23-thread ring and 24-feeding side pipe.

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.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

Example 1

Referring to fig. 1-3, a subway tunnel segment wall post-grouting pipe comprises a grouting inner pipe 1, a stopper pipe 16 is glued to the top of the grouting inner pipe 1, a partition plate 11 is glued to the inner wall of the grouting inner pipe 1, the partition plate 11 divides the cavity of the grouting inner pipe 1 into two identical semicircular cavities, a plurality of inner pipe ports 5 are equidistantly arranged on the side wall of the grouting inner pipe 1, a grouting outer pipe 2 is sleeved on the outer wall of the grouting inner pipe 1, a fixing plate 15 is glued to the top end of the partition plate 11, a compression spring I7 is fixed to the upper surface of the fixing plate 15, a top plate 18 is fixed to the top end of the compression spring I7, a feed plug 21 is matched with the stopper pipe 16, a feed pipe 19 is arranged on the upper surface of the feed plug 21, a horizontal feed side pipe 24 is arranged on the lower portion of the feed plug 21, and supporting rods 14 are glued to the positions of the partition plate 11 on the two sides below the fixing plate 15, and the one end that branch 14 kept away from baffle 11 is connected with the pivot, and the one end that branch 14 was kept away from in the pivot is provided with flabellum 13, the both sides equidistance of baffle 11 is glued and is had a plurality of rubber bag 12.

The utility model discloses in, the position that the outer wall of slip casting inner tube 1 is close to the upper end has seted up the fillet 23, and the bottom outer wall center department of slip casting inner tube 1 is provided with fixture block 8, and the lateral wall of fixture block 8 is seted up threadedly, and the bottom inner wall of slip casting outer tube 2 has seted up the thread groove, and 8 spiro unions of fixture block are in the thread groove.

The utility model discloses in, the lateral wall of slip casting outer tube 2 is close to the position on top and has seted up thread groove one, and thread groove one and 23 size looks adaptations of thread circle, and the lateral wall equidistance of slip casting outer tube 2 has seted up a plurality of outer nozzle, and outer nozzle is coaxial with inner nozzle 5, and the thick liquid is through in outer nozzle 5 and the outer nozzle pours into external soil into.

The working principle of the embodiment is as follows: when the grouting pipe is installed into a grouting hole which is arranged in advance, the top plate 18 is clamped in the pipe cavity of the plugging pipe 16 under the action of the compression spring II 17 to seal the grouting inner pipe 1, so that external stone impurities cannot fall into the grouting inner pipe 1, when grouting is performed, the feeding plug 21 is plugged into the plugging pipe 16, the top plate 18 is pressed down to enable the feeding side pipe 24 to penetrate through the inner cavity of the plugging pipe 16 to enter the upper part of the grouting inner pipe 1, grout with pressure is injected into the feeding pipe 19, the fan blades 13 rotate under the impact of the grout to play a role of stirring the grout to enable the grout to be mixed more uniformly, the rubber bag 12 on the partition plate 11 is matched, after the grout is injected into the grouting inner pipe 1, the volume of the grouting inner pipe 1 is reduced by the rubber bag 12, and meanwhile, the grout is discharged towards the inner pipe opening 5 to facilitate grout discharging.

Example 2

Referring to fig. 1 and 2, the subway tunnel segment wall post-grouting pipe is different from embodiment 1 in that the pipe further comprises a plurality of elastic ropes 4 which are connected to the positions, close to an inner pipe orifice 5, of the circumferential hole wall of an outer pipe orifice in an adhesive manner, a stopper 3 is connected to one end, far away from the inner pipe orifice 5, of each elastic rope 4 in an adhesive manner, the stopper 3 is a hemisphere, and the end, far away from the inner pipe orifice 5, of the outer pipe orifice is hemispherical and is matched with the stopper 3 in size.

The working principle of the embodiment is as follows: slip casting inner tube 1 and slip casting outer tube 2 pass through threaded connection fixedly, make slip casting inner tube 1 and slip casting outer tube 2 separation through rotatory slip casting inner tube 1 after slip casting finishes, but 1 repetitious usage after the clearance of slip casting inner tube, the dog 3 of the hemispheroid of stretch cord 4 connection that sets up through the outer tube mouth of 2 lateral walls of slip casting outer tube makes the thick liquid can be through pushing away dog 3 infiltration soil simultaneously to prevent that external impurity from getting into in the slip casting outer tube 2.

In the description of this patent, it is to be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "one side," "top," "inner," "front," "center," "two ends," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the patent and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In this patent, unless expressly stated or limited otherwise, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate, or they may be connected internally or in an interactive relationship with each other, and unless otherwise specifically limited, the specific meaning of the above terms in this patent will be understood by those skilled in the art according to the specific circumstances.

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 subway tunnel segment wall post-grouting pipe comprises a grouting inner pipe (1), wherein a plug pipe (16) is connected to the top of the grouting inner pipe (1) in an adhesive mode, a partition plate (11) is connected to the inner wall of the grouting inner pipe (1) in an adhesive mode, a cavity of the grouting inner pipe (1) is divided into two identical semicircular cavities by the partition plate (11), a plurality of inner pipe openings (5) are formed in the side wall of the grouting inner pipe (1) in an equidistant mode, a grouting outer pipe (2) is connected to the outer wall of the grouting inner pipe (1) in a sleeved mode, the grouting inner pipe is characterized in that a fixing plate (15) is connected to the top end of the partition plate (11) in an adhesive mode, a compression spring I (7) is fixed to the upper surface of the fixing plate (15), a top plate (18) is fixed to the top end of the compression spring I (7), a feeding plug (21) is matched with the plug pipe (16), a feeding pipe (19) is arranged on the upper surface of the feeding plug (21), and a horizontal feeding side pipe (24) is formed in the lower portion of the feeding plug (21), the position that baffle (11) are located fixed plate (15) below both sides all is glued and is had branch (14), and the one end that baffle (11) were kept away from in branch (14) is connected with the pivot, and the one end that branch (14) were kept away from in the pivot is provided with flabellum (13), the both sides equidistance of baffle (11) is glued and is had a plurality of rubber bag (12).

2. The subway tunnel segment wall post-grouting pipe as claimed in claim 1, wherein a threaded ring (23) is formed in the position, close to the upper end, of the outer wall of the grouting inner pipe (1), a clamping block (8) is arranged at the center of the outer wall of the bottom end of the grouting inner pipe (1), threads are formed in the side wall of the clamping block (8), a threaded groove is formed in the inner wall of the bottom end of the grouting outer pipe (2), and the clamping block (8) is screwed in the threaded groove.

3. The subway tunnel segment wall post-grouting pipe as claimed in claim 1, wherein a first thread groove is formed in the side wall of the grouting outer pipe (2) near the top end, the first thread groove is matched with the thread ring (23) in size, a plurality of outer pipe openings are formed in the side wall of the grouting outer pipe (2) at equal intervals, and the outer pipe openings are coaxial with the inner pipe openings (5).

4. The subway tunnel segment wall post-grouting pipe as claimed in claim 3, wherein a plurality of elastic ropes (4) are glued to the circumferential hole wall of the outer pipe orifice close to the inner pipe orifice (5), a stopper (3) is glued to one end of each elastic rope (4) far away from the inner pipe orifice (5), the stopper (3) is a hemisphere, and the end of the outer pipe orifice far away from the inner pipe orifice (5) is hemispherical and is set to be matched with the size of the stopper (3).

5. A subway tunnel segment wall post-grouting pipe as claimed in claim 1, characterized in that said grouting inner pipe (1) upper end outer wall and said stopper pipe (16) outer wall are provided with air bags (22), and said air bags (22) surround the stopper pipe (16) outer wall, and the upper surface of said air bags (22) is provided with inflation ports.

6. The subway tunnel segment wall post-grouting pipe as claimed in claim 1, wherein a first compression spring (7) is connected to the inner wall of the bottom of the grouting inner pipe (1), and a bottom plate (10) is connected to one end, close to the partition plate (11), of the first compression spring (7).

7. The subway tunnel segment wall post-grouting pipe as claimed in claim 1, wherein a spiral ring groove (6) is formed in the outer wall of the grouting outer pipe (2) near the lower end, and a conical head (9) is welded at the bottom end of the grouting outer pipe (2).