CN101793333A - Construction method for crossing pipeline by single-sided directional drill - Google Patents
Construction method for crossing pipeline by single-sided directional drill Download PDFInfo
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- CN101793333A CN101793333A CN 201010126547 CN201010126547A CN101793333A CN 101793333 A CN101793333 A CN 101793333A CN 201010126547 CN201010126547 CN 201010126547 CN 201010126547 A CN201010126547 A CN 201010126547A CN 101793333 A CN101793333 A CN 101793333A
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Abstract
The invention discloses a construction method for crossing a pipeline by a single-sided directional drill, which comprises the following steps of: firstly drilling a guide hole inclining to the bottom of a canyon from a pipeline embedded point at one side of the canyon through a horizontal directional crossing drill, then carrying out pre-reaming, wherein the aperture is 1.2-1.5 times of the diameter of a crossing pipe, penetrating a prefabricated crossing pipeline into the hole and enabling the pipeline to reach one side at the bottom of the canyon; then drilling a guide hole inclining to the bottom of the canyon from a pipeline unearthed point at the other side of the canyon through the horizontal directional crossing drill, then carrying out pre-reaming, wherein the aperture is also 1.2-1.5 times of the diameter of the crossing pipe, penetrating the prefabricated crossing pipeline into the hole and enabling the pipeline to reach the other side at the bottom of the canyon; and then communicating and fixing the nozzles of the pipelines at both sides of the bottom of the canyon through a connecting pipe. The construction method avoids large-area earthwork evacuation, protects native vegetation and water and soil resources at both sides of the canyon, shortens the construction period and lowers the construction cost and the engineering cost.
Description
Technical field
The present invention relates to a kind of piping erection method of construction, particularly a kind of construction method for crossing pipeline by single-sided directional drill that is applicable to landform such as coombe, abrupt slope, valley.
Background technique
At present, for the piping erection of passing through the narrow landform of U type such as coombe, valley, abrupt slope, pipeline rout is bent downwardly along a side slope in valley earlier, after passing sole, upwards climb along the valley opposite side is domatic again, pipeline adopts method of construction such as heavy excavation, massif explosion along the line, after piping laying finishes, carries out the earthing backfill again.This method of construction, excavation area is big, will cause the destruction of surface water soil resource and natural vegetation, the infringement ecotope; The amount of earth and stone digging simultaneously is big, and the job execution environment is abominable, the difficulty of construction height, and construction safety hidden danger is many.In addition, the workload of water conservancy project protection and land restoration and difficulty of construction are also very big, and the pipe trench at especially domatic place is difficult to earthing, will cause soil erosion, often will just can finish by means of the method for concrete masonry units, cause fundamentally having destroyed the ecosystem environment.
Summary of the invention
For solving in the existing pipeline construction method for crossing; the earth and stone digging amount is big; the problem of difficulty of construction height and destruction ecotope; the invention provides a kind of construction method for crossing pipeline by single-sided directional drill; not only easy construction, safety, economy, and natural vegetation and the water and soil resources that can protect the valley to locate.
For solving above technical problem, construction method for crossing pipeline by single-sided directional drill provided by the present invention, this method of construction comprises the steps: that (1) pipeline of one side buries and a little passes through rig with horizontal orientation and make a pilot hole that tilts to sole from the valley, carry out pre-reaming then, the aperture is to pass through 1.2～1.5 times of caliber, prior prefabricated crossing pipeline is penetrated in this hole, make pipeline arrive a side of sole; (2) pass through rig from the pipeline unearthed point of valley opposite side with horizontal orientation and make a pilot hole that tilts to sole, carry out pre-reaming then, the aperture is similarly 1.2～1.5 times that pass through caliber, prior prefabricated crossing pipeline is penetrated in this hole, make pipeline arrive the opposite side of sole; (3), the mouth of pipe of both sides pipeline connected by connecting tube connect and fixing at sole.
With respect to prior art; the present invention has obtained following beneficial effect: this method of construction has been avoided two side slope large-area earthwork evacuation along the valley; protect the natural vegetation and the water and soil resources of both sides, valley, shortened the construction period, reduced construction cost and engineering cost.
Connecting tube to sole is buried, and one side is built waterwall by laying bricks or stones in current upstream, the valley of described connecting tube.Waterwall helps the protection to the sole connecting tube, prevents that it is subjected to washing away of valley current for a long time and damages.
Description of drawings
Fig. 1 is the pipe laying route map of existing method of construction.
Fig. 2 is a pipe laying route map of the present invention.
Among the figure: 1 heavy excavation pipeline position, 2 single-sided directional drilling pipe line positions.
Embodiment
At present, for the piping erection of passing through the narrow landform of U type such as coombe, valley, abrupt slope, pipeline rout is bent downwardly along a side slope in valley earlier, after passing sole, upwards climb along the valley opposite side is domatic, pipeline adopts method of construction such as heavy excavation, massif explosion along the line again, and heavy excavation pipeline position 1 as shown in fig. 1, after piping laying finishes, carry out the earthing backfill again.This method of construction, excavation area is big, will cause the destruction of surface water soil resource and natural vegetation, the infringement ecotope; The amount of earth and stone digging simultaneously is big, and the job execution environment is abominable, the difficulty of construction height, and construction safety hidden danger is many.In addition, the workload of water conservancy project protection and land restoration and difficulty of construction are also very big, and the pipe trench at especially domatic place is difficult to earthing, will cause soil erosion, often will just can finish by means of the method for concrete masonry units, cause fundamentally having destroyed the ecosystem environment.
Construction method for crossing pipeline by single-sided directional drill of the present invention comprises the steps: that (1) pipeline of one side buries and a little passes through rig with horizontal orientation and make a pilot hole that tilts to sole from the valley, carry out pre-reaming then, the aperture is to pass through 1.2～1.5 times of caliber, prior prefabricated crossing pipeline is penetrated in this hole, make pipeline arrive a side of sole; (2) pass through rig from the pipeline unearthed point of valley opposite side with horizontal orientation and make a pilot hole that tilts to sole, carry out pre-reaming then, the aperture is similarly 1.2～1.5 times that pass through caliber, prior prefabricated crossing pipeline is penetrated in this hole, make pipeline arrive the opposite side of sole; (3), the mouth of pipe of both sides pipeline connected by connecting tube connect and fixing at sole; (4) connecting tube of sole is buried, one side is built waterwall by laying bricks or stones in current upstream, the valley of described connecting tube.Single-sided directional drilling pipe line position 2 as shown in Figure 2.
In addition to the implementation, the present invention can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop in the protection domain of requirement of the present invention.
Claims (2)
1. a construction method for crossing pipeline by single-sided directional drill is characterized in that, this method of construction comprises the steps:
(1) pipeline of one side buries a little and to pass through rig with horizontal orientation and make a pilot hole that tilts to sole from the valley, carry out pre-reaming then, the aperture is to pass through 1.2～1.5 times of caliber, and prefabricated crossing pipeline is in advance penetrated in this hole, makes pipeline arrive a side of sole;
(2) pass through rig from the pipeline unearthed point of valley opposite side with horizontal orientation and make a pilot hole that tilts to sole, carry out pre-reaming then, the aperture is similarly 1.2～1.5 times that pass through caliber, prior prefabricated crossing pipeline is penetrated in this hole, make pipeline arrive the opposite side of sole;
(3), the mouth of pipe of both sides pipeline connected by connecting tube connect and fixing at sole.
2. construction method for crossing pipeline by single-sided directional drill according to claim 1 is characterized in that, the connecting tube of sole is buried, and one side is built waterwall by laying bricks or stones in current upstream, the valley of described connecting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010126547 CN101793333A (en) | 2010-03-18 | 2010-03-18 | Construction method for crossing pipeline by single-sided directional drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010126547 CN101793333A (en) | 2010-03-18 | 2010-03-18 | Construction method for crossing pipeline by single-sided directional drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101793333A true CN101793333A (en) | 2010-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010126547 Pending CN101793333A (en) | 2010-03-18 | 2010-03-18 | Construction method for crossing pipeline by single-sided directional drill |
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| CN (1) | CN101793333A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870819A (en) * | 2017-03-24 | 2017-06-20 | 广州市恒盛建设工程有限公司 | A kind of high density polyethylene (HDPE) non-pressure pipe horizontal directional drilling construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5452967A (en) * | 1994-03-22 | 1995-09-26 | Fuller; Frank E. | Pipe laying system and method |
| CN1247284A (en) * | 1999-08-24 | 2000-03-15 | 范中明 | Underground construction method for installing pipeline with diameter of more than 0.8 m without excavating earth surface |
| CN1693668A (en) * | 2005-06-17 | 2005-11-09 | 上海市隧道工程轨道交通设计研究院 | Counter pulling method used in underground pipe culvert linear dark digging |
| CN101457853A (en) * | 2008-11-20 | 2009-06-17 | 江苏广宇建设集团有限公司 | Non-digging tube-pulling construction method |
-
2010
- 2010-03-18 CN CN 201010126547 patent/CN101793333A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5452967A (en) * | 1994-03-22 | 1995-09-26 | Fuller; Frank E. | Pipe laying system and method |
| CN1247284A (en) * | 1999-08-24 | 2000-03-15 | 范中明 | Underground construction method for installing pipeline with diameter of more than 0.8 m without excavating earth surface |
| CN1693668A (en) * | 2005-06-17 | 2005-11-09 | 上海市隧道工程轨道交通设计研究院 | Counter pulling method used in underground pipe culvert linear dark digging |
| CN101457853A (en) * | 2008-11-20 | 2009-06-17 | 江苏广宇建设集团有限公司 | Non-digging tube-pulling construction method |
Non-Patent Citations (1)
| Title |
|---|
| 《石油工程建设》 20080229 赵文明等 单边定向钻在大型黄土冲沟管道施工中的应用 , 2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870819A (en) * | 2017-03-24 | 2017-06-20 | 广州市恒盛建设工程有限公司 | A kind of high density polyethylene (HDPE) non-pressure pipe horizontal directional drilling construction method |
| CN106870819B (en) * | 2017-03-24 | 2017-12-26 | 广州市恒盛建设工程有限公司 | A kind of high density polyethylene (HDPE) non-pressure pipe horizontal directional drilling construction method |
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Open date: 20100804 |