CN215633019U - Grout stopping plug with exhaust and pressure stabilizing functions - Google Patents

Abstract

The utility model relates to the technical field of grouting equipment for tunnel engineering, in particular to a grout stop plug with an exhaust and pressure stabilization function, which comprises a grouting pipe, a supporting bearing, a three-way pipe, a grout inlet valve, a grout outlet valve and an exhaust pipe, wherein the supporting bearing is sleeved at one end of the grouting pipe, the three-way pipe is arranged at the end part of the grouting pipe close to the supporting bearing, the grout inlet valve and the grout outlet valve are connected with the grouting pipe through the three-way pipe, one end of the exhaust pipe is connected with the grout inlet valve, and the other end of the exhaust pipe penetrates through the interior of the grouting pipe and extends out of the grouting pipe. The utility model has the characteristics of simple structure, convenient and quick assembly and disassembly, can discharge gas in time during grouting, and improves the compactness of slurry, thereby reducing the labor intensity and improving the assembly efficiency; the phenomenon that slurry flows back to the outside of the flow hole along the drill hole after grouting can be reduced, the grouting plug is suitable for grouting holes of different sizes, and the applicability and the flexibility of the grouting plug are further improved.

Description

Grout stopping plug with exhaust and pressure stabilizing functions

Technical Field

The utility model relates to the technical field of grouting equipment in tunnel engineering, in particular to a grout stop plug with an exhaust and pressure stabilization function.

Background

At present, grouting engineering is widely applied to good surrounding rock flexible support and projects such as advance support, side slope support, foundation pit support and the like of highways, railways, water conservancy and tunnels. The tunnel grouting comprises backfilling and consolidation, and the pore space between the lining and the surrounding rock can be filled by pressure grouting, backfilling and grouting, so that the lining and the surrounding rock are tightly combined and stressed together, the elastic resistance of the surrounding rock is exerted, and the leakage is reduced. The consolidation grouting can consolidate broken rock mass, improve the integrity of surrounding rock, reduce the pressure of surrounding rock, guarantee the elastic resistance of surrounding rock, reduce the seepage, cut off groundwater and the body of rod is anticorrosive to reach good supporting purpose.

When the tunnel engineering adopts the basement rock surface pre-grouting, a grout control device is installed at the section of the grouting hole where grouting is temporarily stopped, and due to the plugging effect of grout on cracks or pores of a rock body, the cracks or the pores are gradually reduced, the grout absorption amount is gradually reduced, and the corresponding grouting pressure presents an increasing trend. And gas exists in the slurry, and the gas can affect the compactness of the slurry.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems that the gas in the prior art can not be completely removed and the compactness of the slurry is influenced, the utility model provides the slurry stop plug with the functions of exhausting and stabilizing pressure.

The utility model is realized by the following technical scheme:

the utility model provides a only thick liquid stopper with exhaust steady voltage function, includes grout pipe, props power bearing, three-way pipe, advances the thick liquid valve, goes out thick liquid valve and blast pipe, prop the one end that power bearing housing located the grout pipe, the three-way pipe sets up in the tip that the grout pipe is close to propping power bearing, advance thick liquid valve and go out thick liquid valve and pass through three-way pipe and grout union coupling, the one end of blast pipe with advance thick liquid valve and be connected, the other end runs through inside the grout pipe to stretch out the grout pipe.

Preferably, the outer side of the end part of the grouting pipe is provided with a screw thread, and the supporting force bearing is connected with the grouting pipe through the screw thread.

Preferably, the outer side of the grouting pipe is further provided with a compression ring connected through a screw thread, and the compression ring is located above the supporting bearing and is in contact with the supporting bearing.

Preferably, a rotating handle is arranged on the outer side of the compression ring.

Preferably, the outer side of the grouting pipe is further sleeved with an auxiliary ring, the auxiliary ring is located on one side, far away from the compression ring, of the supporting bearing, and the auxiliary ring is made of water-swelling materials.

Preferably, the auxiliary ring is provided in plurality.

Preferably, a gasket is arranged between two adjacent auxiliary rings.

Preferably, the spacer is made of a flexible material.

Preferably, the outer side of the grouting pipe is further sleeved with a connecting sleeve, and the connecting sleeve is located between the auxiliary ring and the supporting bearing.

Compared with the prior art, the utility model has the following beneficial effects:

the grout pipe is connected each part as supporting the main part, and the power bearing is in order to assist the grout stopper to insert the injected hole, and the operating personnel of being convenient for exerts pressure to the grout pipe, can play the effect of protection and support to the grout pipe. When the slip casting, open the grout pipe valve, the thick liquid gets into the injected hole from the grout pipe, and gas in the thick liquid can be followed the blast pipe and discharged to can promote the closely knit degree of thick liquid, and then reduce intensity of labour, promote work efficiency, should end thick liquid stopper simple structure moreover, it is comparatively convenient to use.

The clamp ring can play the effect that compresses tightly and extend to propping power bearing, rotates the clamp ring, and the clamp ring removes along the axis direction of grout pipe under the effect of screw thread, props power bearing and removes simultaneously under the effect of clamp ring to the personnel of being convenient for will prop during power bearing extrudees into the injected hole.

After meeting water, the supplementary circle that water absorption inflation's material was made absorbs moisture, the volume inflation, make supplementary circle depend on slip casting downthehole wall, and simultaneously, the gasket is in between two expanded supplementary circles, can be to strengthening connection compactness and stability between two adjacent supplementary circles, the phenomenon of slip casting in-process thick liquid along the slip casting hole flowback has not only been reduced, can also make the slip casting hole of only filling up a stopper adaptation different diameters, the leakproofness of only filling up a stopper has been promoted, it then is for the sake of convenience to adjust the length of supplementary circle on the slip casting pipe to set up a plurality of supplementary circles, make the slip casting hole that only filling up a stopper and can adapt to the different degree of depth, the flexibility of only filling up a stopper has been promoted.

The connecting sleeve can play a bearing role to the grouting pipe, so that the grouting pipe can be vertically placed in the grouting hole, and the grout stop plug is parallel to the direction of the grouting anchor rod.

Drawings

FIG. 1 is a schematic structural diagram of a stop-grouting plug with air-exhausting and pressure-stabilizing functions according to the present invention;

fig. 2 is a schematic perspective view of a grout stop plug with air-discharging and pressure-stabilizing functions according to the present invention.

In the figure: 1. grouting pipes; 2. a connecting sleeve; 3. an auxiliary ring; 4. an exhaust pipe; 5. a compression ring; 6. a support bearing; 7. a gasket; 8. rotating the handle; 9. a three-way pipe; 10. a slurry inlet valve; 11. and a pulp outlet valve.

Detailed Description

The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the utility model.

The utility model discloses a grout stop plug with an exhaust and pressure stabilization function, which comprises a grout pipe 1, a support bearing 6, a three-way pipe 9, a grout inlet valve 10, a grout outlet valve 11 and an exhaust pipe 4 by referring to fig. 1 and 2, wherein the grout pipe 1 is made of Q235 steel and has the diameter of 32 mm.

The three-way pipe 9 is in threaded connection with the end part, close to the support bearing 6, of the grouting pipe 1, the grout inlet valve 10 and the grout outlet valve 11 are connected with the grouting pipe 1 through the three-way pipe 9, the grout inlet valve 10 is a two-piece ball valve in the embodiment, and the grout outlet valve 11 is a ball valve.

One end and the grout inlet valve 10 of blast pipe 4 are connected, and the other end runs through grout pipe 1 inside to stretch out grout pipe 1, the diameter of blast pipe 4 is 15mm in this embodiment.

Prop power bearing 6 cover and locate the one end of grout pipe 1, the tip outside of grout pipe 1 is equipped with the screw thread, prop power bearing 6 and pass through the screw thread and connect in the grout pipe 1 outside, prop power bearing 6 and insert the injected hole for supplementary grout stopper, the operating personnel of being convenient for exerts pressure to grout pipe 1, can play the effect of protection and support to grout pipe 1, rotate and prop power bearing 6 and can realize grout pipe 1 and prop being connected and the adjustment of power bearing 6.

The outer side of the grouting pipe 1 is also provided with a pressing ring 5 connected through a screw thread, and the pressing ring 5 is positioned above the supporting bearing 6 and is in contact with the supporting bearing 6. The compression ring 5 can compress and extend the support force bearing 6, so that the support force bearing 6 can be conveniently extruded into the grouting hole by a person. In order to operate clamp ring 5 for the convenience of personnel, the clamp ring 5 outside is equipped with integrated into one piece's rotation handle 8, rotates handle 8 in this embodiment and has two, and follows the perpendicular setting of clamp ring 5 outside symmetry.

The end of the grouting pipe 1 far away from the supporting force bearing 6 is also sleeved with an auxiliary ring 3, and the auxiliary ring 3 is made of water-swelling material, in this embodiment, water-swelling rubber. After meeting water, the supplementary circle 3 that the expanded material of absorbing water made absorbs moisture, and the volume inflation for supplementary circle 3 is attached to on the slip casting hole inner wall, has not only reduced the slip casting in-process thick liquid and has returned the phenomenon of outflow along the slip casting hole, can also make the grout stopping stopper adapt to the slip casting hole of different diameters, has promoted the use flexibility of grout stopping stopper.

Supplementary circle 3 is equipped with a plurality ofly, and a plurality of supplementary circles 3 are for the convenience adjust supplementary circle 3's length according to the degree of depth in grout hole, help promoting the flexibility of only filling in the thick liquid stopper, and supplementary circle 3 has three in this embodiment. Be provided with gasket 7 between two adjacent supplementary circle 3, can reduce the thick liquid and follow the possibility that supplementary circle 3 gap spills over to strengthening the connection compactness and the stability between two adjacent supplementary circles 3, help promoting the leakproofness of only starching the stopper. The gasket 7 is made of flexible materials, the gasket 7 is made of epoxy resin materials in the embodiment, and the gasket made of the flexible materials can protect the auxiliary ring and is beneficial to prolonging the service life of the auxiliary ring.

The outer side of the grouting pipe 1 is further sleeved with a connecting sleeve 2, and the connecting sleeve 2 is located between the auxiliary ring 3 and the supporting bearing 6. Connecting sleeve 2 can play the bearing effect to grout pipe 1 for grout pipe 1 can vertically place in the injected hole, makes the direction of only filling in stopper and slip casting stock perpendicular. The length of connecting sleeve 2 can be adjusted by oneself according to the distance between 6 and the supplementary circle 3 of bearing power, has further promoted the flexibility and the practicality of only starching the stopper.

The utility model relates to a grout stop plug with the functions of exhausting and stabilizing pressure, which has the following implementation principle:

step 1: and rotating the support bearing 6 to the bottom along the screw thread of the grouting pipe 1, so that the support bearing 6 is fixed on the grouting pipe 1.

Step 2: the pressing ring 5 is screwed to the upper part of the supporting bearing 6 along the grouting pipe 1, and the rotating handle 8 is adjusted to fasten the pressing ring 5 on the grouting pipe 1.

And step 3: and a connecting sleeve 2 is arranged at the lower part of the grouting pipe 1, and the auxiliary ring 3 and the gasket 7 are connected in sequence.

And 4, step 4: the upper part of the grouting pipe 1 is provided with a three-way ball valve and a two-piece ball valve, and the exhaust pipe 4 is arranged on the grout inlet valve 10 in advance.

And 5: the grout stop plug is inserted into the grouting hole of the tunnel by using the rotating handle 8.

Step 6: grouting is carried out, and the grout stop plug can be fixed in the grouting hole after the auxiliary ring 3 meets water.

At the in-process of carrying out the slip casting, opening grout pipe 1 valve, the grout gets into the grout hole from grout pipe 1, and the thick liquid is gaseous to be discharged from blast pipe 4 to can promote the closely knit degree of thick liquid, and then reduce intensity of labour, promote work efficiency, should end thick liquid stopper simple structure moreover, it is comparatively convenient to use.

The grout stopping plug with the functions of exhausting and stabilizing pressure has the characteristics of simple structure, convenience and quickness in mounting and dismounting, and gas in grouting can be discharged in time by arranging the exhaust pipe 4, so that the compactness of grout is improved, the labor intensity is reduced, and the mounting efficiency is improved; still make the grout stopping stopper closely depend on the drilling wall through setting up supplementary circle 3, reduced the slip casting back thick liquid along the outer phenomenon of drilling backflow outlet, and be applicable to the slip casting hole of various not equidimensions, further promoted the suitability and the flexibility of grout stopping stopper.

Claims (9)

1. The utility model provides a only thick liquid stopper with exhaust steady voltage function, its characterized in that includes grout pipe (1), supporting bearing (6), three-way pipe (9), advances thick liquid valve (10), goes out thick liquid valve (11) and blast pipe (4), the one end of grout pipe (1) is located to supporting bearing (6) cover, three-way pipe (9) set up in grout pipe (1) and are close to the tip of supporting bearing (6), it is connected with grout pipe (1) through three-way pipe (9) with play thick liquid valve (11) to advance thick liquid valve (10), the one end of blast pipe (4) with advance thick liquid valve (10) and be connected, the other end runs through grout pipe (1) inside to stretch out grout pipe (1).

2. The grout stop plug with the functions of exhausting and stabilizing pressure according to claim 1, wherein the end of the grout pipe (1) is provided with a screw thread on the outer side, and the supporting bearing (6) is connected with the grout pipe (1) through the screw thread.

3. The grout stop plug with the functions of exhausting and stabilizing pressure according to claim 2, wherein a pressing ring (5) connected through a screw thread is further arranged on the outer side of the grouting pipe (1), and the pressing ring (5) is located above the supporting force bearing (6) and is in contact with the supporting force bearing (6).

4. The grout plug with air exhausting and pressure stabilizing functions is characterized in that a rotating handle (8) is arranged outside the compression ring (5).

5. The grout stop plug with the air exhausting and pressure stabilizing functions according to claim 3, wherein an auxiliary ring (3) is further sleeved on the outer side of the grouting pipe (1), the auxiliary ring (3) is located on one side, away from the compression ring (5), of the supporting bearing (6), and the auxiliary ring (3) is made of a water-swelling material.

6. The grout plug with the exhaust and pressure stabilizing functions according to claim 5, wherein a plurality of auxiliary rings (3) are provided.

7. The grout plug with the exhaust and pressure stabilizing functions according to claim 5, wherein a gasket (7) is arranged between two adjacent auxiliary rings (3).

8. Grout plug with venting and pressure stabilizing function according to claim 7, characterized in that said gasket (7) is made of flexible material.

9. The grout stop plug with the functions of exhausting and stabilizing pressure according to claim 5, wherein a connecting sleeve (2) is further sleeved outside the grout pipe (1), and the connecting sleeve (2) is located between the auxiliary ring (3) and the supporting bearing (6).

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