CN107420639A - The passageway excavation method of city gas long distance pipeline - Google Patents
The passageway excavation method of city gas long distance pipeline Download PDFInfo
- Publication number
- CN107420639A CN107420639A CN201710507457.5A CN201710507457A CN107420639A CN 107420639 A CN107420639 A CN 107420639A CN 201710507457 A CN201710507457 A CN 201710507457A CN 107420639 A CN107420639 A CN 107420639A
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- China
- Prior art keywords
- pipeline
- excavation
- push pipe
- passageway
- gas long
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The present invention discloses a kind of passageway excavation method of city gas long distance pipeline, comprises the following steps：Soil property and all kinds of pipeline positions are definitely descended, and warning mark and fence operation are set at excavation, it is ensured that safety work；At the passageway process of pipeline, the embedded direction of extension and the direction of excavation of natural gas long pipeline are identified by spray painting；Push pipe is installed on plant equipment push-bench, and determines to excavate position at front end.The process of the present invention is reduced investment outlay expense, reduce working procedure link, accelerating construction progress, compared with individually completing Directional Drilling and pipeline Crossing by Pipe Pushing Construction, it can preferably ensure construction quality due to reducing even head work, reduce the risk in engineering, and the excavation in hole is received due to reducing push pipe, construction activities are not carried out in special localized ground, there is good social benefit.
Description
Technical field
The present invention relates to pipeline welding technical field, the passageway of specifically a kind of city gas long distance pipeline is excavated
Method.
Background technology
Determining three big key elements of long defeated pressure pipeline service life is：The welding quality of pipeline, the anticorrosive quality of pipeline, pipe
Road is washing away the construction quality in location, wherein comparing crucially pipeline is washing away the construction quality of bottom, and wherein needs pair
The passageway of pipeline is excavated, and is that Directional Drilling is engaged the construction party being combined with push pipe mostly in the excavation operation of conventional pipeline
Method, Directional Drilling and push pipe pass through can not unaided crossing project；And, it is necessary to excavate top when push pipe operation is carried out
Pipe operation hole and push pipe receive hole, and flow is complex, and cannot be used for big-and-middle-sized crossing project and Special zone.
The content of the invention
The purpose of the present invention is in view of the deficienciess of the prior art, providing a kind of passageway of city gas long distance pipeline
Excavation method.
Technical scheme：It is of the present invention solve the problems, such as used by technical scheme be：A kind of mistake of city gas long distance pipeline
Road excavation method, comprises the following steps：
(1) soil property and all kinds of pipeline positions are definitely descended, and warning mark and fence operation are set at excavation, it is ensured that peace
Full operation；
(2) at the passageway process of pipeline, direction and excavation are buried in the extension that natural gas long pipeline is identified by spray painting
Direction；Push pipe is installed on plant equipment push-bench, and determines to excavate position at front end；
(3) first push pipe operation hole at excavation is brought out before excavation, the push pipe of push-bench is put at push pipe operation hole, it is fixed
Behind position, Directional Drilling is installed, the position according to natural gas line mark is oriented the guiding and reaming construction working of brill；
(4) after the completion for the treatment of Directional Drilling reaming construction, Directional Drilling is transform as in the position in the push pipe operation hole that push pipe passes through
Ditch is sent, carries out back dragging operation afterwards；Go back to later radian and the position being responsible for when dragging, it is ensured that after supervisor passes through in place, Zhu Guanke
Hauled out from push pipe operation hole.
(5) after being all welded outside tubing, by grinding apparatus by after the solder joint polishing cooling at tubing outside weldings
Pipeline finished product after being welded.
Preferably, the radian for starting ditch that the Directional Drilling drills out is arranged to 30-60 °；And described supervisor return drag
When radian be arranged to 45 °.
Delayed preferably, described supervisor returns, described push pipe operation hole is changed into push pipe and receives hole.
Preferably, the gap setting between the external diameter for the transmission ditch that described Directional Drilling excavates and supervisor is 4-10mm.
Beneficial effect：The present invention compared with prior art, has advantages below：The process of the present invention is reduced investment outlay expense
With reducing working procedure link, accelerating construction progress, compared with individually completing Directional Drilling and pipeline Crossing by Pipe Pushing Construction, due to subtracting
Construction quality can preferably be ensured by having lacked even head work, reduce the risk in engineering, and receive hole due to reducing push pipe
Excavate, do not carry out construction activities in special localized ground, there is good social benefit.
Embodiment
With reference to specific embodiment, the present invention is furture elucidated, and the present embodiment is premised on technical solution of the present invention
Under implemented, it should be understood that these embodiments are only illustrative of the invention and is not intended to limit the scope of the invention.
A kind of passageway excavation method of city gas long distance pipeline, comprises the following steps：
(1) soil property and all kinds of pipeline positions are definitely descended, and warning mark and fence operation are set at excavation, it is ensured that peace
Full operation；
(2) at the passageway process of pipeline, direction and excavation are buried in the extension that natural gas long pipeline is identified by spray painting
Direction；Push pipe is installed on plant equipment push-bench, and determines to excavate position at front end；
(3) first push pipe operation hole at excavation is brought out before excavation, the push pipe of push-bench is put at push pipe operation hole, it is fixed
Behind position, Directional Drilling is installed, the position according to natural gas line mark is oriented the guiding and reaming construction working of brill；
(4) after the completion for the treatment of Directional Drilling reaming construction, Directional Drilling is transform as in the position in the push pipe operation hole that push pipe passes through
Ditch is sent, carries out back dragging operation afterwards；Go back to later radian and the position being responsible for when dragging, it is ensured that after supervisor passes through in place, Zhu Guanke
Hauled out from push pipe operation hole.
(5) after being all welded outside tubing, by grinding apparatus by after the solder joint polishing cooling at tubing outside weldings
Pipeline finished product after being welded.
What the Directional Drilling drilled out starts the radian of ditch to be arranged to 30-60 °；And described supervisor is returning arc when dragging
Degree is arranged to 45 °；Described supervisor returns and delayed, and described push pipe operation hole is changed into push pipe and receives hole；Described Directional Drilling is opened
Gap setting between the external diameter of the transmission ditch of digging and supervisor is 4-10mm.
The process of the present invention is reduced investment outlay expense, reduces working procedure link, accelerating construction progress, and individually complete
Compared into Directional Drilling with pipeline Crossing by Pipe Pushing Construction, can preferably ensure construction quality due to reducing even head work, reduce in engineering
Risk, and receive due to reducing push pipe the excavation in hole, construction activities do not carried out in special localized ground, with very
Good social benefit.
Above-mentioned embodiment is a preferred embodiment of the present invention, is not the implementation for limiting the present invention
The equivalence changes made with right, all contents according to described in the present patent application scope of patent protection and modification,
It all should be included in the range of present patent application.
Claims (4)
- A kind of 1. passageway excavation method of city gas long distance pipeline, it is characterised in that：Comprise the following steps：(1) soil property and all kinds of pipeline positions are definitely descended, and warning mark and fence operation are set at excavation, it is ensured that safety is made Industry；(2) at the passageway process of pipeline, the embedded direction of extension and the side of excavation of natural gas long pipeline are identified by spray painting To；Push pipe is installed on plant equipment push-bench, and determines to excavate position at front end；(3) first push pipe operation hole at excavation is brought out before excavation, the push pipe of push-bench is put at push pipe operation hole, positioned Afterwards, Directional Drilling is installed, the position according to natural gas line mark is oriented the guiding and reaming construction working of brill；(4) after the completion for the treatment of Directional Drilling reaming construction, the transmission of Directional Drilling is transform as in the position in the push pipe operation hole that push pipe passes through Ditch, carry out back dragging operation afterwards；Go back to later radian and the position being responsible for when dragging, it is ensured that after supervisor passes through in place, supervisor can be from top Pipe operation is hauled out in hole.(5) after being all welded outside tubing, will be obtained by grinding apparatus after the solder joint polishing cooling at tubing outside weldings Pipeline finished product after welding.
- A kind of 2. passageway excavation method of city gas long distance pipeline according to claim 1, it is characterised in that：It is described What Directional Drilling drilled out starts the radian of ditch to be arranged to 30-60 °；And described supervisor return drag when radian be arranged to 45 °.
- A kind of 3. passageway excavation method of city gas long distance pipeline according to claim 1, it is characterised in that：It is described Supervisor return delay, described push pipe operation hole be changed into push pipe receive hole.
- A kind of 4. passageway excavation method of city gas long distance pipeline according to claim 1, it is characterised in that：It is described Directional Drilling excavate transmission ditch external diameter and supervisor between gap setting be 4-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710507457.5A CN107420639A (en) | 2017-06-28 | 2017-06-28 | The passageway excavation method of city gas long distance pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710507457.5A CN107420639A (en) | 2017-06-28 | 2017-06-28 | The passageway excavation method of city gas long distance pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107420639A true CN107420639A (en) | 2017-12-01 |
Family
ID=60426827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710507457.5A Pending CN107420639A (en) | 2017-06-28 | 2017-06-28 | The passageway excavation method of city gas long distance pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107420639A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345309A (en) * | 2019-07-18 | 2019-10-18 | 江苏环宇建设工程有限公司 | A kind of natural gas line laying built-in process |
-
2017
- 2017-06-28 CN CN201710507457.5A patent/CN107420639A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345309A (en) * | 2019-07-18 | 2019-10-18 | 江苏环宇建设工程有限公司 | A kind of natural gas line laying built-in process |
| CN110345309B (en) * | 2019-07-18 | 2021-04-20 | 江苏环宇建设工程有限公司 | Natural gas pipeline laying and pre-embedding method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171201 |