CN101141054A - Compaction grouting method for preventing land subsidence after non-digging horizontal drilling - Google Patents
Compaction grouting method for preventing land subsidence after non-digging horizontal drilling Download PDFInfo
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- CN101141054A CN101141054A CNA2006100308041A CN200610030804A CN101141054A CN 101141054 A CN101141054 A CN 101141054A CN A2006100308041 A CNA2006100308041 A CN A2006100308041A CN 200610030804 A CN200610030804 A CN 200610030804A CN 101141054 A CN101141054 A CN 101141054A
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- grouting
- horizontal drilling
- compaction
- land subsidence
- borehole
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Abstract
The invention relates to a compaction grouting method for preventing the ground settlement after trenchless horizontal drilling, which is characterized in that: when laying pipelines after completing drilling, a grouting tube is laid in a borehole with the pipelines; a grouting machine is communicated with the grouting tube after laying the pipeline and the grout is poured in the borehole. The grouting tube is positioned in the middle upper part of the laid pipeline. A grouting tube of a compaction grouting method for preventing the settlement after trenchless drilling is implemented, which is characterized in that: small grouting holes are evenly distributed on the grouting tube and have diameters of 0.5cm to 1.5cm and distances of 1m to 2m. The utility model has the advantages that the intensity of the soil horizon surrounding the borehole after grouting is greatly strengthened to prevent the ground road settlement at the borehole and have good protective effect on the pipelines and the adjacent pipelines.
Description
Technical field
The present invention relates to a kind of construction method that prevents surface subsidence behind the horizontal drilling, particularly a kind of compaction grouting method that prevents land subsidence after non-digging horizontal drilling.
Background technology
At present in the city when carrying out pipe installations such as electric power, communication cable, need excavate on the road surface, then with pipe installation the excavation the hole groove in, treat again the road surface to be recovered after the pipe installation, but when the pipeline of laying will pass through facilities such as road, bridge, building, when particularly needing to pass through busy traffic major trunk roads, above-mentioned traditional excavation road surfacing pipeline will directly have influence on normally carrying out of urban transportation, and the pollution of environment is also caused in the job site simultaneously.Present development along with technology, favourable excavating equipment with horizontal orientation carries out non-excavating construction, exactly when passing through traffic route, both sides at road are provided with the job site, utilize non-excavation equipment to hole then on both sides, electric power is laid in reaming then, the communication cable pipeline, can carry out the construction that pipeline passes through not influencing under the unobstructed situation of traffic like this, but because the difference of geological conditions, the difference of pipe diameter and reaming aperture and drilling tool, construction is passed through regional ground and can be produced sedimentation, need carry when road under the situation of big load, road produces serious depression, the traffic safety of harm road.
Summary of the invention
The objective of the invention is to solve the problem of existing surface subsidence behind the pipeline construction of existing trenchless technology.A kind of compaction grouting method that prevents land subsidence after non-digging horizontal drilling is provided.Technical scheme of the present invention is a kind of compaction grouting method that prevents land subsidence after non-digging horizontal drilling of design, it is characterized in that: during pipelining after boring is finished, together be applied in boring with pipeline a Grouting Pipe, treat pipelining grouting behind shaft or drift lining machine connection Grouting Pipe, cement mortar is injected in the boring.Grouting Pipe is arranged in the top of laying the line.Implement a kind of Grouting Pipe that prevents the compaction grouting method of non-excavation boring back surface subsidence, it is characterized in that: be distributed with the slip casting aperture on the Grouting Pipe equably, the diameter of described slip casting aperture is at 0.5-1.5 centimetre, and the spacing of slip casting aperture is a 1-2 rice.Advantage of the present invention is that soil layer intensity is strengthened greatly around holing after slip casting, and the gap reduces, and prevents the surface road sedimentation of drill hole, simultaneously pipeline and adjacent lines thereof has been played good protective effect.
Description of drawings
Accompanying drawing 1 is a job site of the present invention schematic diagram,
Accompanying drawing 2 is the AA generalized section of Fig. 1 of the present invention,
Accompanying drawing 3 is a Grouting Pipe structural representation of the present invention,
Below in conjunction with embodiment the present invention is elaborated:
Embodiment
An example of practice of construction; there is busy traffic main artery, overpass limit 1 to pass through at one; 110 meters of construction length; the MPP pipe 2 that this project need be laid 200 millimeters of diameters amounts to 6; 1 the place of passing through, both sides excavates construction hole 3 on the traffic main artery; utilize non-excavation equipment to hole then; (diameter of slip casting aperture is at 0.5-1.5 centimetre with a Grouting Pipe 4 after the boring reaming is finished; the spacing of slip casting aperture is a 1-2 rice) together be applied in the boring 5 with the MPP of 200 millimeters of 6 diameters pipe 2; slip casting aperture 6 usefulness sealing tapes with Grouting Pipe 4 surfaces when laying seal; treat to connect Grouting Pipe 4 with slip casting machine after the pipelining; cement mortar (cement and water 1: 1) is injected in the Grouting Pipe 4; slip casting aperture 6 by Grouting Pipe 4 is injected into cement mortar in the boring 5 again; lay the line appropriate to the occasion Grouting Pipe 4 is arranged in pipeline in above in case can make cement mortar enter into equably boring 5 in; should be during slip casting with the mud cleaning of overflowing from 5 both sides of holing; prevent that it from pouring in down a chimney in the boring 5; the cement mortar that influence is injected is for the solidification of boring 5 walls; cement mortar with boring 5 walls soft earth mix after; its intensity strengthens greatly; not only reinforced 5 the intensity of holing; also pipeline is played a very good protection; the permanent buried bench mark of arranging by the distance about 100 meters at the construction field (site); can be in the sedimentation on construction period and observation ground, construction back; largest cumulative amount in ground is 0.3 millimeter of decline during whole construction, but cumulative amount rises 0.5 millimeter about nearly overhead bridge pier.Satisfy the requirement of construction largest cumulative sedimentation 8-10 millimeter.
Claims (3)
1. compaction grouting method that prevents land subsidence after non-digging horizontal drilling, it is characterized in that: when the pipelining of boring reaming after finishing, a Grouting Pipe together is applied in the boring with pipeline, treats pipelining grouting behind shaft or drift lining machine connection Grouting Pipe, cement mortar is injected in the boring.
2. by the described a kind of compaction grouting method that prevents land subsidence after non-digging horizontal drilling of claim 1, it is characterized in that: Grouting Pipe is arranged in the top of laying the line.
3. implement the described a kind of Grouting Pipe that prevents the compaction grouting method of land subsidence after non-digging horizontal drilling of claim 1, it is characterized in that: be distributed with the slip casting aperture on the Grouting Pipe equably, the diameter of described slip casting aperture is at 0.5-1.5 centimetre, and the spacing of slip casting aperture is a 1-2 rice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100308041A CN101141054A (en) | 2006-09-06 | 2006-09-06 | Compaction grouting method for preventing land subsidence after non-digging horizontal drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100308041A CN101141054A (en) | 2006-09-06 | 2006-09-06 | Compaction grouting method for preventing land subsidence after non-digging horizontal drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101141054A true CN101141054A (en) | 2008-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100308041A Pending CN101141054A (en) | 2006-09-06 | 2006-09-06 | Compaction grouting method for preventing land subsidence after non-digging horizontal drilling |
Country Status (1)
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| CN (1) | CN101141054A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701459B (en) * | 2009-10-16 | 2011-05-04 | 宝钢工程技术集团有限公司 | Method for processing soft soil foundation of intertidal belt to form construction working face |
| CN102522723A (en) * | 2011-12-15 | 2012-06-27 | 绍兴电力局 | Power cable crossing method without excavating ground surface |
| CN107938673A (en) * | 2017-12-12 | 2018-04-20 | 储茂松 | A kind of buried 35KV cross-linked polrvinyl chlorides insulated power cable automatic mounting machine |
| CN110080202A (en) * | 2019-05-23 | 2019-08-02 | 王海霖 | A kind of Foundation Pit bottom Horizontal Freezing structure and construction method |
| CN111946297A (en) * | 2020-08-19 | 2020-11-17 | 新地能源工程技术有限公司 | Filling and curing slurry and horizontal directional drilling grouting collapse prevention process |
-
2006
- 2006-09-06 CN CNA2006100308041A patent/CN101141054A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701459B (en) * | 2009-10-16 | 2011-05-04 | 宝钢工程技术集团有限公司 | Method for processing soft soil foundation of intertidal belt to form construction working face |
| CN102522723A (en) * | 2011-12-15 | 2012-06-27 | 绍兴电力局 | Power cable crossing method without excavating ground surface |
| CN102522723B (en) * | 2011-12-15 | 2014-08-27 | 绍兴电力局 | Power cable crossing method without excavating ground surface |
| CN107938673A (en) * | 2017-12-12 | 2018-04-20 | 储茂松 | A kind of buried 35KV cross-linked polrvinyl chlorides insulated power cable automatic mounting machine |
| CN110080202A (en) * | 2019-05-23 | 2019-08-02 | 王海霖 | A kind of Foundation Pit bottom Horizontal Freezing structure and construction method |
| CN111946297A (en) * | 2020-08-19 | 2020-11-17 | 新地能源工程技术有限公司 | Filling and curing slurry and horizontal directional drilling grouting collapse prevention process |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20080312 |