CN103234078A - Laying method of long distance coal conveying pipeline at debris flow gully section - Google Patents
Laying method of long distance coal conveying pipeline at debris flow gully section Download PDFInfo
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- CN103234078A CN103234078A CN2013101740314A CN201310174031A CN103234078A CN 103234078 A CN103234078 A CN 103234078A CN 2013101740314 A CN2013101740314 A CN 2013101740314A CN 201310174031 A CN201310174031 A CN 201310174031A CN 103234078 A CN103234078 A CN 103234078A
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- pipe
- pipeline
- debris flow
- laying
- coal
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Abstract
The invention discloses a pipeline laying method and particularly relates to a laying method of a long distance coal conveying pipeline at a debris flow gully section. The laying method includes the following steps: 1) a pipe ditch on a coal paste laying line is dug to the bed rock, and width of the pipe ditch is two times of that of a designed pipe ditch; 2) a pipe ditch is dug on the bed rock, and depth and width of the pipe ditch meet requirements of pipeline laying; and 3) when the pipeline is laid well, prevention measures of flood drainage and flow guidance are performed on the section so as to reduce damage of debris flow on the coal conveying pipeline. Due to the fact that the pipeline is buried deeply, the pipeline is arranged in the bed rock with underlaying stability, the risk that the pipeline is damaged by the debris flow in a debris flow season is reduced, the top of the pipeline is buried under the frost line, and thermal insulation performance of the pipeline is improved.
Description
Technical field
The present invention relates to a kind of pipe laying method, be specifically related to the defeated coal of long-distance pipe at the laying method of debris flow cheuch section.
Background technique
This class special geographical environment all adopts the suspension cable system to tradition in the debris flow district, the suspension cable system is stressed mainly to be born by main rope, the stressed maximum of main rope, main rope must have the anchoring pier in the two sides in debris flow district, and the anchoring pier will build on the lithology geologic structure, can not be based upon on the decomposed rock geologic structure.Amount of deflection is offset down in the bridge floor arch camber that must make progress in main rope middle part.The amount of deflection of suspension cable system can exert an influence to pipe safety operation, and outside goes out, vibrates, and blows etc. to cause that all the suspension cable system trembles and vibrate, and this all can influence the safe operation of pipeline system.Ore slurry pipeline is two-phase fluid (solid and liquid), and fluid ratio is great, the pressure height, and flow velocity is fast, and slurry has the momentum conversion.Require external impact little to pipeline system, vibrate little, pipe laying will be laid by the hydraulic gradient of strict regulations, generally all be to adopt buried-pipe laying, the degree of depth is at 0.8 ~ 1.2m, local location can reach 2.0m, and this buried-pipe laying adopts the degree of depth below basement rock, can avoid going out, shaking and destroying pipeline system such as agricultural production, vehicle, hunting like this.
Summary of the invention
The object of the invention provides the defeated coal of a kind of long-distance pipe at the laying method of debris flow cheuch section.
In order to overcome above-mentioned deficiency, technological scheme of the present invention is to solve like this: the defeated coal of long-distance pipe is at the laying method of debris flow cheuch section, and this method is carried out according to the following steps:
1), lay on the route at the coal slurry pipe pipe trench dug to basement rock, width is 2 times of the design pipe trench;
2), excavate pipe trench at basement rock, the degree of depth of pipe trench and width reach the requirement of pipe laying;
3), when pipe laying is good, to this location drain off floodwaters, the water conservancy diversion protection method, thereby reduce debris flow to the destruction of convey coal pipe.
Described pipe laying is stablized in the basement rock underliing, and reduces the destruction of debris flow mud-stone flow disaster in season to the coal convey pipe line with this.
Described pipe laying must meet design requirement.
The present invention has compared with prior art improved the ability of pipeline adaptation to the ground, has avoided crossing over the potential safety hazard of the later stage operation that brings, and reduces investment outlay, and reduces difficulty of construction, guarantees operation security.
Embodiment
Embodiment given below further specifies so that the present invention is made; but given embodiment can not be interpreted as limiting the scope of the invention, thereby nonessential improvement and adjustment that the professional and technical personnel has done according to content and the design philosophy of foregoing invention also belong to protection scope of the present invention.
Embodiment 1
Lay on the route at the coal slurry pipe pipe trench is dug to basement rock, width is 2 times of the design pipe trench.
Embodiment 2
Excavate pipe trench at basement rock, the degree of depth of pipe trench and width reach the requirement of pipe laying.
Embodiment 3
When pipe laying is good, to this location drain off floodwaters, the water conservancy diversion protection method, thereby reduce debris flow to the destruction of convey coal pipe.
Claims (3)
1. a long-distance pipe is failed coal at the laying method of debris flow cheuch section, and this method is carried out according to the following steps:
1), lay on the route at the coal slurry pipe pipe trench dug to basement rock, width is 2 times of the design pipe trench;
2), excavate pipe trench at basement rock, the degree of depth of pipe trench and width reach the requirement of pipe laying;
3), when pipe laying is good, to this location drain off floodwaters, the water conservancy diversion protection method, thereby reduce debris flow to the destruction of convey coal pipe.
2. the defeated coal of a kind of long-distance pipe according to claim 1 is characterized in that at the laying method of debris flow cheuch section: described pipe laying is stablized in the basement rock underliing, and reduces the destruction of debris flow mud-stone flow disaster in season to the coal convey pipe line with this.
3. the defeated coal of long-distance pipe according to claim 1 is characterized in that at the laying method of debris flow cheuch section described pipe laying must meet design requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101740314A CN103234078A (en) | 2013-05-11 | 2013-05-11 | Laying method of long distance coal conveying pipeline at debris flow gully section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101740314A CN103234078A (en) | 2013-05-11 | 2013-05-11 | Laying method of long distance coal conveying pipeline at debris flow gully section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103234078A true CN103234078A (en) | 2013-08-07 |
Family
ID=48882130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101740314A Pending CN103234078A (en) | 2013-05-11 | 2013-05-11 | Laying method of long distance coal conveying pipeline at debris flow gully section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103234078A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020119012A1 (en) * | 2001-02-27 | 2002-08-29 | Patrick Agnew | Method of constructing pipelines in shallow ice covered waters |
| CN101775826A (en) * | 2010-01-26 | 2010-07-14 | 济南金鼎信息技术有限公司 | Construction method for laying water pipes |
| CN102155583A (en) * | 2011-04-12 | 2011-08-17 | 中国十九冶集团有限公司 | Method and structure for laying ore pulp pipeline in landslide body, collapsed body and debris flow area |
| CN102878351A (en) * | 2012-10-18 | 2013-01-16 | 中煤科工集团武汉设计研究院 | Pipeline laying method of long-distance coal conveying pipeline |
-
2013
- 2013-05-11 CN CN2013101740314A patent/CN103234078A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020119012A1 (en) * | 2001-02-27 | 2002-08-29 | Patrick Agnew | Method of constructing pipelines in shallow ice covered waters |
| CN101775826A (en) * | 2010-01-26 | 2010-07-14 | 济南金鼎信息技术有限公司 | Construction method for laying water pipes |
| CN102155583A (en) * | 2011-04-12 | 2011-08-17 | 中国十九冶集团有限公司 | Method and structure for laying ore pulp pipeline in landslide body, collapsed body and debris flow area |
| CN102878351A (en) * | 2012-10-18 | 2013-01-16 | 中煤科工集团武汉设计研究院 | Pipeline laying method of long-distance coal conveying pipeline |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 430064 Hubei Province, Wuhan city Wuchang District Wuluo Road No. 442 Applicant after: Wuhan Design and Research Institute Co., Ltd. pf China Coal Technology & Engineering Group Address before: 430064 Hubei Province, Wuhan city Wuchang District Wuluo Road No. 442 Applicant before: Wuhan Design and Research Institute of China Coal Technology & Engineering Group |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: WUHAN DESIGN AND RESEARCH INSTITUTE OF CHINA COAL TECHNOLOGY + ENGINEERING GROUP TO: WUHAN DESIGN AND RESEARCH INSTITUTE CO., LTD. PF CHINA COAL TECHNOLOGY + ENGINEERING GROUP |
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| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130807 |