CN104948833B - Mountainous region gas pipeline construction method - Google Patents
Mountainous region gas pipeline construction method Download PDFInfo
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- CN104948833B CN104948833B CN201510317275.2A CN201510317275A CN104948833B CN 104948833 B CN104948833 B CN 104948833B CN 201510317275 A CN201510317275 A CN 201510317275A CN 104948833 B CN104948833 B CN 104948833B
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- pipe
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- gas pipeline
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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)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a mountainous region gas pipeline construction method. The construction method comprises the following main steps of 1, construction operation zone cleaning, wherein large vegetation on a construction operation zone is removed, and static blasting is performed to shatter and remove stone on the construction operation zone; 2, construction road building, wherein a construction road is built beside a pipe ditch design line, the construction road on a flat mountain slope is in a linear shape, the construction road on a mountain slope is in the shape of a broken line, and operation platforms are arranged at the position, near a pipe ditch, on the construction road in the extending direction of the pipe ditch every a certain distance; 3, pipe ditch excavating, wherein the pipe ditch is excavated by utilizing an excavator according to the design line, and the bottom of the ditch is cleaned through manual cooperation; 4, pipeline lying, wherein steel pipes are transported and stacked on a mountain, and then placed in the excavated pipe ditch; 5, pipe ditch backfilling, wherein the pipe ditch is backfilled with backfill materials. By using the mountainous region gas pipeline construction method, the safety risk can be lowered, the construction progress can be sped up, and the cost can be saved.
Description
Technical field
The present invention relates to a kind of construction method, and in particular to a kind of mountain region gas pipeline engineering method, belongs to gas pipeline
Field of engineering technology.
Background technology
In domestic and international gas pipeline construction process in recent years, the more aobvious complexity of landform that pipeline passes through, the high slope in mountain is steep, ditch
Gully in length and breadth, brings very big difficulty to construction it is impossible to play the advantage of mechanized continuous productive process.Especially carry out mountain region construction
When, due to lacking mountain region construction technology and experience, when there is mountain region construction, speed is slow, the low problem of safety, serious restricts
Pipeline construction progress.
Rational construction method is the premise determining working security, and the construction environment of safety can guarantee that work progress
Be smoothed out, both are indispensable in whole work progress, complement each other.Selecting mountain region gas pipeline engineering method
When, should be according to the factor of a series of impact safety such as different landform, landforms, the soft degree of soil property, emergency of the gradient and progress
Start with, each detail in construction technology is given careful consideration, under the premise that security is guaranteed, using scientific and reasonable
Construction method.The correct selection of mountain region construction method is the key improving mountain region efficiency of construction, rational mountain region construction method energy
Enough reduction security risks, accelerating construction progress, cost-effective.
Content of the invention
The technical problem to be solved is: ensures gas pipeline smoothly laying in mountain region.
In order to solve above-mentioned technical problem, the invention provides a kind of mountain region gas pipeline engineering method, walk including following
Rapid:
Step one, clears up construction operation band, removes the large-scale vegetation on construction operation band, using static blasting, construction is made
The cubic meter of stone on industry band shatters removing.Using air compressor machine, the cubic meter of stone is holed, place cracking agent in the hole and carry out static blasting handle
The cubic meter of stone shatters, and then using disintegrating apparatus, the cubic meter of stone is crushed again, until being easy to excavation function all remove the cubic meter of stone；Quick-fried
Tumble direction setting prevention hole along the cubic meter of stone below breakpoint, play undertaking or cushioning effect when rock blasting tumbles, prevention hole
Depth is the depth of pipe trench, and the width in prevention hole is 1.2 times of pipe trench width, and the length in prevention hole is not less than the length of slope.
Step 2, builds builder's road, builds builder's road, builder's road is on massif flat slope by piping design circuit
For linear type, builder's road is fold-line-shaped on massif slope, presses pipe trench extending direction on builder's road near pipe trench
Set operating platform at a certain distance.
Preferably, builder's road sets operating platform by pipe trench extending direction every 12 meters near pipe trench, operation
Land lengths and width are all not less than 6 meters.Fold-line-shaped builder's road takies 35 meters of construction operation bandwidth, fold-line-shaped builder's road
Local width is less than 4 meters.After fold-line-shaped builder's road molding, the gradient is less than or close to 15 degree.
Step 3, pipe canal digging, excavates pipe trench according to designed lines excavator, hand fit clears up bottom of trench.Pipe trench is opened
After the completion of digging, the both sides heap along pipe trench bearing of trend builds sandbag；If on massif slope, sandbag heap is built height and is required more than mound height
Degree；If on massif flat slope, sandbag heap is built height and is 1 meter.Pipe trench cross section is inverted trapezoidal, upper wide 3.8 meters, lower wide 1.6 meters, deep
Degree is not less than 2.5 meters.
Step 4, pipeline laying, steel pipe is transported on mountain and stacks, then insert in the pipe trench having excavated.Steel pipe heap on mountain
When putting, the mouth of pipe two ends bottom of steel pipe must be lined with sandbag, the mouth of pipe two ends of steel pipe pipe cap used when must dispatch from the factory using steel pipe
Closure.
Step 5, backfilling of pipe canal, backfill pipe trench using backfilling material.Cubic meter of stone section backfilling of pipe canal material all using stone powder,
Pipeline bottom overlays 0.2 meter of thickness of stone powder.
The invention has the beneficial effects as follows: can reduce security risk, accelerating construction progress, cost-effective.
Technique effect below with reference to design, concrete structure and generation to the present invention for the accompanying drawing is described further, with
It is fully understood from the purpose of the present invention, feature and effect.
Brief description
Fig. 1 is the flow chart of a preferred embodiment of the present invention mountain region gas pipeline engineering method.
Specific embodiment
Example below is that the present invention is described in further detail, and embodiment is to be front with technical solution of the present invention
Put and implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to down
State embodiment.
Step one, clears up construction operation band
Remove the large-scale vegetation on construction operation band, using static blasting, the cubic meter of stone on construction operation band is shattered removing.
Using air compressor machine, the cubic meter of stone is holed, carry out static blasting in the hole placement cracking agent and the cubic meter of stone is shattered, then using broken
Equipment crushes again to the cubic meter of stone, until being easy to excavation function all remove the cubic meter of stone.
Cubic meter of stone cleaning construction method is divided into three steps:
First small-sized air compressor handling used is gone up a hill to position (the Air Compressor Equipment intact symbol of need of the required cleaning cubic meter of stone
Close used by safe construction, place place and need to steadily carry out non-skid feature).
Secondly the required removing cubic meter of stone is holed using small-sized air compressor (hole number with the actual determination of cubic meter of stone amount size,
In addition operative employee need to carry out training and must wear anti-gray mask in construction).
Finally all after the completion of perforatings, explosive carries out the quiet quick-fried cubic meter of stone and shatters (also needing using big gun machine to the cubic meter of stone after shattering
Cleared up again, until being easy to digging machine can all remove the cubic meter of stone).
Compared with general static blasting, the static blasting during gas pipeline engineering of mountain region, along the cubic meter of stone below blow-up point
Tumble direction and preset special " prevention hole ", the cubic meter of stone tumbles and constantly plays the effect accepting mountain stone or buffering in explosion.
The size of the required pipe trench according to roughing-in, calculates the equivalent of cubic meter of stone static blasting." prevention therefore generally described above
The dimensional depth in hole " is the depth of required pipe trench, and width is 1.2 times of required pipe trench width, and length is according to the actual feelings of slope
Depending on condition.
Step 2, builds builder's road
For ready-made road, need to be lengthened and be built reinforcing, pit be carried out with paving and rockfills granulated slag tamping, to lobe
Point with machinery and manually need to be excavated and the close granulated slag that rockfills is it is ensured that the heavy goods vehicle of construction material and equipment is safe, suitable
Profit is current.
To mountain area Special zone line alignment optimization, determine the position of builder's road and temporary heap pipe field for effective control
Investment, convenient construction and control duration will play significant role.Build builder's road by piping design circuit, builder's road exists
It is linear type on massif flat slope, builder's road is fold-line-shaped on massif slope.
Builder's road sets operating platform by pipe trench extending direction every 12 meters near pipe trench, is easy to digging machine upper and lower
Cornering operation and workmen when going up a hill in the middle of take a break.Operating platform length and width all not less than 6 meters, is easy to digging machine
Operate, rotate, turn around required.Fold-line-shaped builder's road takies 35 meters of construction operation bandwidth, and fold-line-shaped builder's road itself is wide
Degree is less than 4 meters.After fold-line-shaped builder's road molding, the gradient is less than or close to 15 degree.
Step 3, pipe canal digging
Excavate pipe trench according to designed lines excavator, hand fit clears up bottom of trench.After the completion of pipe canal digging, prolong along pipe trench
The both sides heap stretching direction builds sandbag；If on massif slope, sandbag heap is built height and is required more than mound height；If in massif flat slope
On, sandbag heap is built height and is 1 meter.Pipe trench cross section is inverted trapezoidal, upper wide 3.8 meters, lower wide 1.6 meters, and depth is not less than 2.5 meters.
As pipe canal digging side be close to massif and opposite side as massif slope, it must build sandbag by heap, its sandbag heap builds height
Degree must try gradient size to meet live mound requirement (prior effect is to prevent massif soil erosion), and such as opposite side is
Massif flat slope pipe trench institute earth excavation is stacked its peripheral sandbag heap and is built and highly general only needs 1 meter to can reach requirement (to prevent massif water
Soil runs off).
As its position both sides of pipe canal digging are massif flat slope because also needing relative set in view of massif soil erosion problem
Sandbag, and accomplish that sandbag heap is built height and can be met requirement for 1 meter.
Special zone also needs to build building concrete barricade and guarantees construction safety (comprising to prevent massif soil erosion problem), and it is built
Build and require examination on-site actual situations to determine (its length high thickness must is fulfilled for construction safety).
Step 4, pipeline laying
Steel pipe is transported on mountain and stacks, then insert in the pipe trench having excavated.
Because on mountain, soil property is bad, placing of material especially notes protecting the cleannes in the insulating barrier of steel pipe and guarantee pipe,
It is stacked main attention item and is divided at 3 points.
1st, on mountain, steel tube stacking position must rationally determine and carry out stacking platform arrangement (its position can not affect to apply in the future
The normal pass of work passage).
2nd, on mountain, the mouth of pipe two side bottom of its steel pipe of steel tube stacking must be lined with sandbag and (and must carry out outside steel tube stacking
Safety precautions prevents steel pipe from tumbling).
3rd, when on mountain, the closure of its mouth of pipe two ends of steel tube stacking must be dispatched from the factory using steel pipe, (it is unnecessary to prevent for pipe cap used
Debris enter in pipe and prevent accidental impact from damaging the mouth of pipe).
Step 5, backfilling of pipe canal
Backfill pipe trench using backfilling material.Before backfill, enter the measurement of line pipe crest level first it is ensured that protective coating and looping portion
Being damaged of position all has been obtained for repairing and have passed through enough hardening times, and is answered with leak detector
Inspection.
The cubic meter of stone can not be stacked near the scene, otherwise produces great potential safety hazard, should be transported to outward appointed place and throw aside.Cause
Live earth's surface no element soil is desirable, and all using stone powder, ttom of pipe overlays 0.2 meter of thickness of stone powder to cubic meter of stone section backfilling of pipe canal material.
The preferred embodiment of the present invention described in detail above.It should be appreciated that those of ordinary skill in the art is no
Need creative work just can make many modifications and variations according to the design of the present invention.Therefore, all technology in the art
It is available that personnel pass through logical analysis, reasoning, or a limited experiment under this invention's idea on the basis of existing technology
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (9)
1. a kind of mountain region gas pipeline engineering method is it is characterised in that described construction method comprises the following steps:
Step one, clears up construction operation band, removes the large-scale vegetation on construction operation band, using static blasting construction operation band
On the cubic meter of stone shatter removing；Tumble direction setting prevention hole along the described cubic meter of stone below blow-up point, described prevention hole is in described stone
Undertaking or cushioning effect are played in square explosion when tumbling；
Step 2, builds builder's road, builds builder's road, described builder's road is on massif flat slope by piping design circuit
For linear type, described builder's road is fold-line-shaped on massif slope, presses pipe trench on described builder's road near pipe trench
Extending direction interval sets operating platform；
Step 3, pipe canal digging, excavates pipe trench according to designed lines excavator, hand fit clears up bottom of trench；
Step 4, pipeline laying, steel pipe is transported on mountain and stacks, then insert in the pipe trench having excavated；
Step 5, backfilling of pipe canal, backfill pipe trench using backfilling material；
In step one, using air compressor machine, the described cubic meter of stone is holed, place cracking agent in the hole and carry out static blasting described
The cubic meter of stone shatters, and then using disintegrating apparatus, the described cubic meter of stone is crushed again, until being easy to excavate described in the whole removing of function
The cubic meter of stone；The depth in described prevention hole is the depth of described pipe trench, and the width in described prevention hole is 1.2 times of described pipe trench width,
The length in described prevention hole is not less than the length of slope.
2. a kind of mountain region gas pipeline engineering method according to claim 1 is it is characterised in that in step 2, described
Nearby operating platform is set by pipe trench extending direction every 12 meters near pipe trench, described operating platform length and width on builder's road
All not less than 6 meters.
3. a kind of mountain region gas pipeline engineering method according to claim 1 is it is characterised in that in step 2, described folding
Linear builder's road takies 35 meters of construction operation bandwidth, and described fold-line-shaped builder's road local width is less than 4 meters.
4. a kind of mountain region gas pipeline engineering method according to claim 1 is it is characterised in that in step 2, described folding
After linear builder's road molding, the gradient is less than 15 degree.
5. a kind of mountain region gas pipeline engineering method according to claim 1 is it is characterised in that in step 3, described pipe
Ditch cross section is inverted trapezoidal, upper wide 3.8 meters, lower wide 1.6 meters, and depth is not less than 2.5 meters.
6. a kind of mountain region gas pipeline engineering method according to claim 1 is it is characterised in that in step 3, described pipe
After the completion of ditch excavates, the both sides heap along described pipe trench bearing of trend builds sandbag；If on massif slope, sandbag heap is built height and need to be surpassed
Cross mound height；If on massif flat slope, sandbag heap is built height and is 1 meter.
7. a kind of mountain region gas pipeline engineering method according to claim 1 is it is characterised in that in step 4, steel pipe exists
When stacking on mountain, the mouth of pipe two ends bottom of steel pipe must be lined with sandbag.
8. a kind of mountain region gas pipeline engineering method according to claim 1 is it is characterised in that in step 4, steel pipe exists
When stacking on mountain, the pipe cap closure used when must be dispatched from the factory using steel pipe of the mouth of pipe two ends of steel pipe.
9. a kind of mountain region gas pipeline engineering method according to claim 1 is it is characterised in that in step 5, cubic meter of stone section
All using stone powder, pipeline bottom overlays 0.2 meter of thickness of stone powder to backfilling of pipe canal material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510317275.2A CN104948833B (en) | 2015-06-10 | 2015-06-10 | Mountainous region gas pipeline construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510317275.2A CN104948833B (en) | 2015-06-10 | 2015-06-10 | Mountainous region gas pipeline construction method |
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| CN104948833A CN104948833A (en) | 2015-09-30 |
| CN104948833B true CN104948833B (en) | 2017-01-18 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387273A (en) * | 2015-12-10 | 2016-03-09 | 上海煤气第一管线工程有限公司 | Method for constructing natural gas pipelines in mountain environment |
| CN105971055A (en) * | 2016-05-31 | 2016-09-28 | 安庆供水集团公司 | Clean construction method for urban secondary water supply |
| CN110688719A (en) * | 2019-10-10 | 2020-01-14 | 中国人民解放军63926部队 | Method for calculating maximum length of right-angle pipe trench passing through pipeline |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1558130A (en) * | 2004-01-30 | 2004-12-29 | 胜利油田胜利石油化工建设有限责任公 | Down-ditch construction method for laying heavy caliber pipeline |
| RU2477410C1 (en) * | 2011-11-10 | 2013-03-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный университет" | Method of pipeline laying in highlands rocks |
| CN103527846A (en) * | 2012-12-31 | 2014-01-22 | 洛阳新奥华油燃气有限公司 | Technology for conveying and storing gas by using phi1219/phi1016 natural gas pipeline |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0913357A (en) * | 1995-06-27 | 1997-01-14 | Nkk Corp | Backfill method of buried article |
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- 2015-06-10 CN CN201510317275.2A patent/CN104948833B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1558130A (en) * | 2004-01-30 | 2004-12-29 | 胜利油田胜利石油化工建设有限责任公 | Down-ditch construction method for laying heavy caliber pipeline |
| RU2477410C1 (en) * | 2011-11-10 | 2013-03-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный университет" | Method of pipeline laying in highlands rocks |
| CN103527846A (en) * | 2012-12-31 | 2014-01-22 | 洛阳新奥华油燃气有限公司 | Technology for conveying and storing gas by using phi1219/phi1016 natural gas pipeline |
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Address after: No.162 Weifang Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 200122 Patentee after: Shanghai Energy Construction Group Co.,Ltd. Address before: 200122 No. 162, Weifang Road, Shanghai, Pudong New Area Patentee before: SHANGHAI MUNICIPAL GAS NO.2 PIPELINES ENGINEERING Co.,Ltd. |
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