CN216811714U - Thixotropic slurry anti-drag grouting system - Google Patents
Thixotropic slurry anti-drag grouting system Download PDFInfo
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- CN216811714U CN216811714U CN202220193902.1U CN202220193902U CN216811714U CN 216811714 U CN216811714 U CN 216811714U CN 202220193902 U CN202220193902 U CN 202220193902U CN 216811714 U CN216811714 U CN 216811714U
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- grouting
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- pipes
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- 230000009974 thixotropic effect Effects 0.000 title claims abstract description 30
- 239000002002 slurry Substances 0.000 title claims abstract description 17
- 239000002689 soil Substances 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 4
- 239000011440 grout Substances 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 2
- 238000007569 slipcasting Methods 0.000 abstract description 27
- 238000009434 installation Methods 0.000 abstract description 2
- 210000001503 joint Anatomy 0.000 description 15
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model provides a thixotropic slurry anti-drag grouting system, which comprises: the grouting branch pipe is a flexible pipe body, and a plurality of grouting joints are arranged on the grouting branch pipe; the grouting joints are used for injecting thixotropic slurry between the top pipe and the peripheral soil after extending into the grouting holes, and the plurality of grouting joints are uniformly distributed along the same bus of the grouting branch pipe; the grouting main pipe extends along the axial direction of the jacking pipe, and the plurality of grouting branch pipes are correspondingly communicated with the grouting main pipe and are distributed at equal intervals in the length direction of the grouting main pipe; the grouting main pipe is correspondingly connected with a grouting pump. Simple structure, the installation of being convenient for is equipped with a plurality of slip casting on the slip casting branch pipe and connects, and the slip casting branch pipe is flexible body, can carry out slip casting position adjustment according to actual demand to be applicable to the push pipe of different pipe diameters.
Description
Technical Field
The utility model belongs to the technical field of pipe jacking construction, and particularly relates to a thixotropic slurry anti-drag grouting system.
Background
Along with the development of domestic underground engineering, pipe-jacking tunnels are longer and longer, when pipe-jacking construction is carried out, thixotropic slurry needs to be injected into gaps on the periphery of a pipeline in time by a member in the process of excavating a cutter head of a pipe-jacking machine, and after the pipe-jacking is finished, the thixotropic slurry is solidified and enhanced to protect ground buildings under shallow soil so as to reduce the friction force between pipe joints of the pipe-jacking and the ground.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a thixotropic slurry drag-reduction grouting system.
In order to achieve the above purpose, the utility model provides the following technical scheme:
a thixotropic slurry drag reducing grouting system comprising:
the grouting branch pipe is a flexible pipe body, and a plurality of grouting joints are arranged on the grouting branch pipe;
the grouting joints are used for injecting thixotropic slurry between the top pipe and peripheral soil after extending into the grouting holes, and the plurality of grouting joints are uniformly distributed along the same bus of the grouting branch pipe;
the grouting main pipe extends along the axial direction of a jacking pipe, and the plurality of grouting branch pipes are correspondingly communicated with the grouting main pipe and are distributed at equal intervals in the length direction of the grouting main pipe;
the grouting main pipe is correspondingly connected with a grouting pump.
Preferably, the grouting branch pipe comprises a plurality of sections of first splicing pipes connected end to end, two first splicing pipes which are connected randomly are respectively connected to connectors at two ends of the three-way pipe in a detachable mode, and a connector in the middle of the three-way pipe is correspondingly connected with the grouting joint.
Preferably, a control valve is arranged between the joint in the middle of the three-way pipe and the grouting joint.
Preferably, the main grouting pipe comprises a plurality of sections of second splicing pipes connected end to end, two second splicing pipes which are connected randomly are respectively connected to connectors at two ends of the three-way pipe in a detachable mode, and a connector in the middle of the three-way pipe is correspondingly connected with one end of the branch grouting pipe.
Preferably, the other end of the grouting branch pipe is detachably connected with a plugging head.
Preferably, the one end intercommunication grouting pump of grouting main pipe, the other end is connected with the shutoff head with the detachable mode.
Preferably, the grouting branch pipe and the grouting main pipe are both rubber pipes, and the pipe diameter of the grouting main pipe is larger than that of the grouting branch pipe.
Preferably, the grouting joint is a metal pipe, and the pipe diameter of the metal pipe is matched with the inner diameter of the grouting pipe.
Preferably, the grout inlet end of the grouting pump is correspondingly connected to the grout stirring barrel.
Preferably, the plurality of grouting branch pipes are arranged along the axial direction of the top pipe, and the plurality of grouting joints on the same grouting branch pipe are respectively and correspondingly connected to the plurality of grouting pipes on the same section of the same top pipe;
at least one lamp strip is arranged in parallel with the axial direction of the jacking pipe and connected to the grouting branch pipes.
Has the advantages that: simple structure, the installation of being convenient for is equipped with a plurality of slip casting on the slip casting branch pipe and connects, and the slip casting branch pipe is flexible body, can carry out slip casting position adjustment according to actual demand to be applicable to the push pipe of different pipe diameters.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. Wherein:
fig. 1 is a schematic structural diagram of a grouting system provided by the utility model.
In the figure: 1. jacking pipes; 2. grouting a main pipe; 3. grouting branch pipes; 4. a three-way pipe; 5. grouting joints; 6. a control valve; 7. a light strip; 8. plugging a plug; 9. a walkway plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are for convenience of description of the present invention only and do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected" and "connected" used herein should be interpreted broadly, and may include, for example, a fixed connection or a detachable connection; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
As shown in fig. 1, a thixotropic mud drag reduction grouting system comprises a grouting branch pipe 3, grouting joints 5, a grouting main pipe 2 and a grouting pump, wherein a plurality of grouting joints 5 are arranged on the grouting branch pipe 3; the grouting joints 5 can extend into the grouting holes and then thixotropic slurry is injected between the top pipe 1 and the peripheral soil, and the plurality of grouting joints 5 are uniformly distributed along the same bus of the grouting branch pipe 3; the grouting branch pipes 3 are flexible pipes and can be bent and deformed according to actual requirements, so that the grouting position is adjusted to be suitable for jacking pipes 1 with different pipe diameters, the grouting main pipe 2 extends axially along the jacking pipes 1, and the plurality of grouting branch pipes 3 are correspondingly communicated with the grouting main pipe 2 and are distributed at equal intervals in the length direction of the grouting main pipe 2; the main grouting pipe 2 is correspondingly connected with a grouting pump so as to inject thixotropic slurry between the top pipe 1 and peripheral soil through the main grouting pipe 2, the branch grouting pipes 3 and the grouting joints 5 in sequence.
In this embodiment, slip casting joint 5 connects on slip casting branch pipe 3 with detachable mode to increase and decrease according to the quantity of slip casting hole in the use, satisfy and carry out the slip casting to the push pipe 1 of different models, shape.
In another optional embodiment, the grouting branch pipe 3 comprises a plurality of sections of first splicing pipes connected end to end, the grouting branch pipe 3 is formed by a plurality of first splicing pipes, so that the length of the grouting branch pipe 3 can be selected according to the actual pipe diameter of the jacking pipe 1, the flexible grouting branch pipe 3 can be bent at will, the problems of grouting hole precision and adjacent grouting hole distance do not need to be considered, only the distance between two adjacent grouting joints 5 is required to be larger than the distance between two conventional adjacent grouting holes, in the grouting branch pipe 3, two first splicing pipes connected at will are connected to the interfaces at the two ends of the three-way pipe 4 in a detachable mode respectively, and the middle interface of the three-way pipe 4 is correspondingly connected with the grouting joints 5. Connect slip casting joint 5 and first concatenation pipe through three-way pipe 4, simple structure can splice wantonly according to actual demand, is to have stronger application scope.
In another alternative embodiment, a control valve 6 (such as a hemispherical valve) is arranged between the interface of the middle part of the three-way pipe 4 and the grouting joint 5 so as to open and close the grouting joint 5 according to requirements, and thus grouting can be stopped or started selectively.
In another optional embodiment, the main grouting pipe 2 comprises a plurality of sections of second splicing pipes connected end to end, the length of each second splicing pipe is greater than the distance between two adjacent grouting holes in the axial direction of the top pipe 1, each second splicing pipe is also a flexible pipe body, two second splicing pipes connected randomly are respectively connected to the interfaces at the two ends of the three-way pipe in a detachable mode, and the interface at the middle part of the three-way pipe is correspondingly connected with one end of the branch grouting pipe 3.
In the above embodiment, the three-way pipe is a T-shaped three-way pipe, and the specific caliber of the three-way pipe is selected according to the sizes of the grouting branch pipe 3 and the grouting main pipe 2.
In another alternative embodiment, the other end of the grouting branch pipe 3 is detachably connected with a plugging head 8, and the other end of the grouting branch pipe 3 can be plugged, so that thixotropic slurry is guaranteed to be injected into a grouting hole from the grouting joint 5.
In another alternative embodiment, one end of the grouting main pipe 2 is communicated with a grouting pump, and the other end of the grouting main pipe is detachably connected with a plugging head 8, so that thixotropic slurry is guaranteed to be injected into a grouting hole from the grouting joint 5 through the plugging head 8.
In another optional implementation, the grouting branch pipe 3 and the grouting main pipe 2 are both rubber pipes, and the pipe diameter of the grouting main pipe 2 is larger than that of the grouting branch pipe 3, so that the flow rate of thixotropic slurry in the grouting main pipe 2 is larger than that of the grouting branch pipe 3, and the grouting effect is ensured.
In another alternative embodiment, the slip casting joint 5 is a metal pipe with a pipe diameter adapted to the inner diameter of the slip casting pipe. In this implementation, can be at the downthehole pre-buried slip casting pipe of slip casting, the slip casting intraductal internal thread that is equipped with of slip casting, slip casting joint 5 outer wall is equipped with the external screw thread to this threaded connection slip casting pipe realizes the butt joint of slip casting joint 5 and slip casting hole, makes this slip casting system can carry out the slip casting of great pressure with this.
In this embodiment, the thick liquid end of advancing of grouting pump corresponds and connects on mud agitator, and mud agitator is uncovered staving, and this has the (mixing) shaft of following its axial extension in its middle part, and it is internal that the thixotropic mud that the ratio is good pours into uncovered staving to supply with mud to the grouting pump through mud agitator, the (mixing) shaft lasts the stirring at this in-process, can avoid thixotropic mud to condense, guarantees thixotropic mud quality.
In another optional embodiment, a plurality of grouting branch pipes 3 are arranged along the axial direction of the top pipe 1, and a plurality of grouting joints 5 on the same grouting branch pipe 3 are respectively and correspondingly connected to a plurality of grouting pipes on the same section of the same top pipe 1; at least one lamp area 7 is on a parallel with push pipe 1 axial and arranges to be connected on a plurality of slip casting branch pipes 3, and lamp area 7 corresponds to be connected on the power to 1 inside illumination of push pipe, specifically can carry out the ligature on slip casting branch pipe 3 through ribbon, steel wire etc..
In another optional embodiment, the grouting main pipe 2 extends axially parallel to the top pipe 1, four grouting holes are distributed in the top pipe 1, the four grouting holes are uniformly distributed along the circumference of the top pipe 1, and the two lowermost grouting holes are bilaterally symmetrical with respect to the longitudinal diameter of the top pipe 1 (taking the top pipe 1 as an example), at this time, the grouting main pipe 2 is located at one lowermost grouting hole and extends, the grouting branch pipe 3 extends upwards along the top pipe 1 to the other lowermost grouting hole (forming a 270-degree arc corresponding to the top pipe 1), it is ensured that no grouting branch pipe 3 exists between the two lowermost grouting holes, the walkway plate 9 can be laid, and the grouting pipe and the mud outlet pipe corresponding to the head of the top pipe 1. It should be understood that the above description is only exemplary, and the embodiments of the present application do not limit the present invention.
The above description is only exemplary of the utility model and should not be taken as limiting the utility model, as any modification, equivalent replacement, or improvement made within the spirit and principle of the utility model is intended to be covered by the appended claims.
Claims (10)
1. A thixotropic mud drag reduction grouting system, comprising:
the grouting branch pipe is a flexible pipe body, and a plurality of grouting joints are arranged on the grouting branch pipe;
the grouting joints are used for injecting thixotropic slurry between the top pipe and peripheral soil after extending into the grouting holes, and the plurality of grouting joints are uniformly distributed along the same bus of the grouting branch pipe;
the grouting main pipe extends along the axial direction of a jacking pipe, and the plurality of grouting branch pipes are correspondingly communicated with the grouting main pipe and are distributed at equal intervals in the length direction of the grouting main pipe;
the grouting main pipe is correspondingly connected with a grouting pump.
2. The thixotropic slurry drag-reducing grouting system of claim 1, wherein the grouting branch pipes comprise a plurality of sections of first splicing pipes connected end to end, any two connected first splicing pipes are detachably connected to the interfaces at the two ends of the three-way pipe respectively, and the middle interface of the three-way pipe is correspondingly connected with the grouting joint.
3. The thixotropic mud drag-reducing grouting system of claim 2, wherein a control valve is arranged between the joint in the middle of the three-way pipe and the grouting joint.
4. The thixotropic mud drag-reducing grouting system of claim 1, wherein the main grouting pipe comprises a plurality of sections of second splicing pipes connected end to end, any two connected second splicing pipes are respectively connected to the interfaces at the two ends of the three-way pipe in a detachable manner, and the interface at the middle part of the three-way pipe is correspondingly connected to one end of the grouting branch pipe.
5. The thixotropic mud drag reducing grouting system of claim 4 wherein a choke plug is removably attached to the other end of the grouting branch.
6. The thixotropic mud drag-reducing grouting system of claim 1 wherein one end of the main grouting pipe is communicated with the grouting pump and the other end is detachably connected with a plugging head.
7. The thixotropic mud drag-reducing grouting system of claim 1 wherein the grouting branch pipes and the grouting main pipe are both rubber pipes and the pipe diameter of the grouting main pipe is greater than the pipe diameter of the grouting branch pipes.
8. The thixotropic mud drag reducing grouting system of claim 1 wherein the grouting joint is a metal tube having a tube diameter that is compatible with the inside diameter of the grouting tube.
9. The thixotropic mud drag reducing grouting system of claim 1 wherein the grout inlet end of the grouting pump is correspondingly connected to the mud agitator.
10. The thixotropic mud drag-reducing grouting system of claim 1, wherein a plurality of grouting branch pipes are arranged along the axial direction of a top pipe, and a plurality of grouting joints on the same grouting branch pipe are respectively and correspondingly connected to a plurality of grouting pipes on the same top pipe and on the same cross section;
at least one lamp strip is arranged in parallel with the axial direction of the jacking pipe and connected to the grouting branch pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220193902.1U CN216811714U (en) | 2022-01-24 | 2022-01-24 | Thixotropic slurry anti-drag grouting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220193902.1U CN216811714U (en) | 2022-01-24 | 2022-01-24 | Thixotropic slurry anti-drag grouting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216811714U true CN216811714U (en) | 2022-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220193902.1U Active CN216811714U (en) | 2022-01-24 | 2022-01-24 | Thixotropic slurry anti-drag grouting system |
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| Country | Link |
|---|---|
| CN (1) | CN216811714U (en) |
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- 2022-01-24 CN CN202220193902.1U patent/CN216811714U/en active Active
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