CN104213833B - Pipeline Crossing by Horizontal Directional Drilling construction method and rig thereof - Google Patents
Pipeline Crossing by Horizontal Directional Drilling construction method and rig thereof Download PDFInfo
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- CN104213833B CN104213833B CN201310217253.XA CN201310217253A CN104213833B CN 104213833 B CN104213833 B CN 104213833B CN 201310217253 A CN201310217253 A CN 201310217253A CN 104213833 B CN104213833 B CN 104213833B
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Abstract
The invention discloses a kind of Pipeline Crossing by Horizontal Directional Drilling construction method and rig thereof, be to design for improving the stability of borehole wall and reduce crossing construction risk.Main shaft, conical breaker structure, cutterhead and horizontal directional drill machine travel drilling rod is connected before this internal cabin wall of this rig, cutter plate driver mechanism, feed pipe and drain pipe is connected after the wall of cabin, body rear end be connected with injected hole and in set the hauling pipe pipe nipple of Grouting Pipe, hauling pipe pipe nipple rear end connects crossline.The present invention is used for the Pipeline Crossing by Horizontal Directional Drilling of the above pipeline of diameter 400mm, and boring can disposably be expanded to becoming hole dimension and directly returning the entrance boring of hauling pipe road by it, completes to lay, fills the space between drill hole inner wall and crossline simultaneously, and being drained into by drilling cuttings is unearthed holds.The present invention can improve the stability of borehole wall, reduces the construction risk that collapse hole causes, and reduces construction cost, protects environment, may be implemented in the Pipeline Crossing Program of the major diameter under the conditions of scall and ground consisting of hard rock, distance, expands the range of application of horizontal directional drill method.
Description
Technical field
The present invention relates to a kind of Pipeline Crossing by Horizontal Directional Drilling construction method and rig thereof, belong to non-
Excavation crossing construction technical field.
Background technology
Horizontal directional drill construction technology currently for the above crossline of diameter 400mm is divided into
Bore pilot hole, reaming and return drag three phases, the most first use horizontal directional drilling machine along planned course
Bore a pilot hole；Then, at unearthed end, drilling rod is connected with reamer, rig traction drilling rod,
Drilling rod drives reamer to expand boring step by step along passing through track, every grade of reaming about 150mm, until
Boring aperture reaches 1.5 times of pipeline external diameter to be traversed or more than pipeline external diameter 300mm；Finally,
Connect crossline at unearthed end drilling rod, will be travelling through completing pipeline laying in boring pulled into by pipeline.
Said method is disadvantageous in that: 1, reaming and return drag the stage, borehole wall only leans on
The mud of liquid supports, and is difficult to keep borehole wall stable for a long time for scall, and divides
Level reaming can increase again the disturbance to stratum, extends boring and is led from steady time, increase collapse hole
The risk passing through failure caused.2, boring procedure cuts the drilling cuttings got off to suspend by mud, and
Taken outside boring by the flowing of mud.For cobble and gravel stratum, due to cannot be by big grain
The drilling cuttings in footpath suspends and discharges boring, therefore lock of tool drilling easily occurs, and is not suitable for directly using water
Flat directional drilling crossing.3, the stratum of rock strength higher (more than 50MPa) is passed through, and drilling tool is cut
Cut moment of torsion big, when crossline is relatively large in diameter, level can be not suitable for by drilling tool torque limit
Directional drilling method.4, in crossing process, mud acts the dual function carrying drilling cuttings He stablizing hole wall.
On the one hand it is to improve the ability of mud suspension drilling cuttings and mud viscosity to be improved, reduces the stream of mud
Dynamic property, on the other hand for making mud to flow and the viscosity of mud to be reduced at lower pressures.
For solving this contradiction, mud property can only be improved, increase bentonite and additive amount, from
And strengthen construction cost.
Summary of the invention
It is an object of the invention to provide a kind of Pipeline Crossing by Horizontal Directional Drilling construction method and boring sets
Standby, to improve the stability of borehole wall, reduce the risk of crossing construction.
Pipeline Crossing by Horizontal Directional Drilling construction method of the present invention is as follows:
The Pipeline Crossing by Horizontal Directional Drilling of pipeline above for diameter 400mm, after being drilled pilot hole, one
Boring is expanded to becoming hole dimension by secondary property ground, and directly returns the entrance boring of hauling pipe road while reaming,
Complete to lay, fill mud by Grouting Pipe to the space between drill hole inner wall and crossline simultaneously,
Specific construction step is as follows:
A, laying construction feed pipe, construction drainage pipe, construction in the pipeline to be traversed of unearthed end
Grouting Pipe and supply line；
B, the construction feed pipe that will be travelling through in pipeline, construction drainage pipe, construction Grouting Pipe and power supply
Circuit is connected with feed pipe, drain pipe and the Grouting Pipe of this rig, will be travelling through pipeline and this
Rig end connects；
C, after horizontal directional drilling machine completes pilot hole operation, connect this rig at unearthed end；
D, use horizontal directional drill machine travel drilling rod, draw this rig with drilling rod and enter operating pit
Start driving；
E, this rig cut stratum, directly by the size needed for boring expansion to traversing pipe line,
Drilling cuttings is drained into the end that is unearthed by drain pipe；Sync pulling crossline during this rig driving, directly
To end horizontal directional drilling machine side of burying, simultaneously by Grouting Pipe to drill hole inner wall and crossline
Between space fill mud.
When horizontal directional drilling machine pull strength deficiency, ejector sleeve machine, hoist engine etc. are set at unearthed end
Equipment provides thrust to crossline, and auxiliary bore hole equipment tunnels.
The technology contents of Pipeline Crossing by Horizontal Directional Drilling rig of the present invention is as follows:
The body interior of this rig is separated by cabin wall, and cabin wall front surface connects conical breaker
Structure and main shaft, front-end of spindle connects cutterhead and horizontal directional drill machine travel drilling rod, conical breaker
Structure is inhaled and is muddy water storehouse between the wall of cabin, and muddy water storehouse is provided with mud suction mouth.Wall rear surface, cabin connects cutterhead and drives
Motivation structure, the feed pipe in connection muddy water storehouse and the drain pipe of connection mud suction mouth, drain pipe connects
Connect gravel pump.Body rear end connects hauling pipe pipe nipple, and hauling pipe pipe nipple side face is provided with injected hole, hauling pipe
Grouting pressure adjusting means and Grouting Pipe, the hauling pipe pipe nipple rear end connecting injected hole it is provided with in pipe nipple
Connect crossline.
Pipeline Crossing by Horizontal Directional Drilling construction method and rig thereof have the advantages that
Borehole wall can obtain crossline and the support of high viscosity mud in time, can guarantee that hole wall
Stable, reduce the construction risk caused because of collapse hole.Drilling cuttings by special drainage pipeline through gravel pump
Pressurization heel row, to ground, will not be deposited in boring, can reduce the construction risk that bit freezing causes.
Water and bentonite consumption are few, can reduce construction cost, protect environment.For different stratum classes
Type, drilling diameter only need to be more than crossline overall diameter 50～300mm, becomes hole dimension little.Right
The displacement requirements of rig and slush pump is low, and mud flow rate is little.Construction site is required low, passes through
Pipeline section sectional prefabricated and return drag.Bad ground (gravel, cobble, hard rock) condition can be realized
Under major diameter, long-distance pipe pass through, the range of application of horizontal directional drill method can be expanded.
Accompanying drawing explanation
Fig. 1 is Pipeline Crossing by Horizontal Directional Drilling rig structural representation.
Detailed description of the invention
Embodiment:
With reference to Fig. 1, embodiments of the invention are further illustrated:
This rig include muddy water storehouse 1, mud suction mouth 2, body 3, hauling pipe pipe nipple 4, main shaft 5,
Cutterhead 6, conical breaker structure 7, cabin wall 8, drive mechanism 9, gravel pump 10, injected hole 11,
Grouting pressure adjusting means 12, Grouting Pipe 13, feed pipe 14 and drain pipe 15:
Tubular body 3 is internal to be separated by cabin wall 8, and cabin wall 8 front surface connects conical breaker
Structure 7 and main shaft 5 at its center, main shaft 5 front end connects cutterhead 6 and horizontal directional drilling machine
Traction drilling rod.Being muddy water storehouse 1 between conical breaker structure 7 and cabin wall 8, muddy water storehouse 1 is provided with
Mud suction mouth 2.Cabin wall 8 rear surface connects cutter plate driver mechanism 9, the feed pipe in connection muddy water storehouse 1
14 and connection mud suction mouth 2 drain pipe 15, on drain pipe 15 connect gravel pump 10.Body
3 rear ends are articulated and connected hauling pipe pipe nipple 4, and hauling pipe pipe nipple 4 side face is uniformly provided with 3～5 injected holes
11, it is provided with grouting pressure adjusting means 12 and the slip casting connecting injected hole 11 in hauling pipe pipe nipple 3
Pipe 13, hauling pipe pipe nipple 4 rear end welding crossline.
The concrete construction method of this rig is as follows:
Embodiment 1:
The stratum passed through is mud, silty clay.First preparation is completed at unearthed end.?
Being unearthed, the crossline held is interior lays feed pipe, drain pipe, Grouting Pipe and supply line；To wear
More feed pipe, drain pipe, Grouting Pipe and the supply line in pipeline and the feedwater of this rig
Pipe 14, drain pipe 15 and Grouting Pipe 13 connect, and will be travelling through pipeline and this rig end
Hauling pipe pipe nipple 4 welds.After horizontal directional drilling machine completes pilot hole operation, connect at unearthed end
This rig.With horizontal directional drill machine travel drilling rod, draw this rig with drilling rod and enter
Operating pit starts driving.This rig cutting stratum expands boring.Drive mechanism 9(mud
Motor) drive cutterhead 6 to cut the high-pressure slurry needed for stratum, MTR by horizontal directional drill
Machine is provided by drilling rod.Mud is sprayed by the nozzle on cutterhead 6 surface, in rig front end
Mix with drilling cuttings in muddy water storehouse 1, mud suction mouth 2 enter drain pipe 15, add through gravel pump 10
Pressure heel row is to the end that is unearthed.This rig driving also draws crossline until end level of burying is fixed
To rig side, complete crossing construction.
Embodiment 2:
The stratum passed through is flour sand, fine sand, medium sand, coarse sand.First complete to prepare at unearthed end
Work.Feed pipe, drain pipe, Grouting Pipe and supply lines is laid in the crossline of unearthed end
Road；Will be travelling through the feed pipe in pipeline, drain pipe, Grouting Pipe and supply line to set with this boring
Standby feed pipe 14, drain pipe 15 and Grouting Pipe 13 connect, and will be travelling through pipeline and set with this boring
The hauling pipe pipe nipple 4 of standby end connects.After horizontal directional drilling machine completes pilot hole operation, going out
Soil end connects this rig.With horizontal directional drill machine travel drilling rod, draw this boring with drilling rod
Equipment enters operating pit and starts driving.This rig cutting stratum expands boring.Drive mechanism
9(MTR) drive cutterhead 6 to cut the high-pressure slurry needed for stratum, MTR by level
Directional drilling machine is provided by drilling rod.After mud is sprayed by the nozzle on cutterhead 6 surface, set in boring
Mix with drilling cuttings in the muddy water storehouse 1 of standby front end, mud suction mouth 2 enter drain pipe 15, through sandstone
Pump 10 pressurizes heel row to the end that is unearthed.Thixotropic slurry injects through Grouting Pipe 13 at unearthed end, by noting
The space between crossline and borehole wall is injected in slurry hole 11.This rig driving traction are worn
More pipeline is until end horizontal directional drilling machine side of burying, and completes crossing construction.
Embodiment 3:
The stratum passed through is flour sand, fine sand, medium sand, coarse sand.First complete to prepare at unearthed end
Work.Feed pipe, drain pipe, Grouting Pipe and supply lines is laid in the crossline of unearthed end
Road；Will be travelling through the feed pipe in pipeline, drain pipe, Grouting Pipe and supply line to set with this boring
Standby feed pipe 14, drain pipe 15 and Grouting Pipe 13 connect, and will be travelling through pipeline and set with this boring
The hauling pipe pipe nipple 4 of standby end connects.After horizontal directional drilling machine completes pilot hole operation, going out
Soil end connects this rig.With horizontal directional drill machine travel drilling rod, draw this boring with drilling rod
Equipment enters operating pit and starts driving.This rig cutting stratum expands boring.Drive mechanism
9(motor) drive cutterhead 6 to cut stratum, motor is passed through supply lines by floor power supply device
Road powers.Muddy water is injected by feed pipe 14 at unearthed end, in the muddy water storehouse 1 of rig front end
In mix with drilling cuttings after, mud suction mouth 2 enter drain pipe 15, pressurize heel row through gravel pump 10
To the end that is unearthed.Thixotropic slurry injects through Grouting Pipe 13 at unearthed end, injected hole 11 inject and wear
The more space between pipeline and borehole wall.This rig driving also draws crossline until entering
Soil end horizontal directional drilling machine side, completes crossing construction.
Embodiment 4:
The stratum passed through is gravel, cobble, rock.First preparation is completed at unearthed end.
Feed pipe, drain pipe, Grouting Pipe and supply line is laid in the crossline of unearthed end；Will
Feed pipe, drain pipe, Grouting Pipe and supply line in crossline gives with this rig
Water pipe 14, drain pipe 5 and Grouting Pipe 13 connect, and will be travelling through pipeline and this rig end
Hauling pipe pipe nipple 4 connect.After horizontal directional drilling machine completes pilot hole operation, at unearthed end even
Connect this rig.With horizontal directional drill machine travel drilling rod, draw this rig with drilling rod and enter
Enter operating pit and start driving.This rig cutting stratum expands boring.Drive mechanism 9(electricity
Motivation) drive cutterhead 6 to cut stratum, motor is supplied by supply line by floor power supply device
Electricity.Muddy water is injected by feed pipe 14 at unearthed end, in the muddy water storehouse 1 of rig front end with
After drilling cuttings mixing, mud suction mouth 2 enter drain pipe 15, pressurize heel row to going out through gravel pump 10
Soil end.In stratum, the big cobble of particle diameter, rubble first pass around conical breaker structure 7 and pulverize, then
Drain pipe 15 is entered through mud suction mouth 2.Thixotropic slurry injects through Grouting Pipe 13 at unearthed end, by
Injected hole 11 injects the space between crossline and borehole wall.This rig driving also draws
Crossline, until end horizontal directional drilling machine side of burying, completes crossing construction.
Claims (8)
1. a Pipeline Crossing by Horizontal Directional Drilling construction method, it is characterised in that:
The Pipeline Crossing by Horizontal Directional Drilling of pipeline above for diameter 400mm, after being drilled pilot hole, disposably
Boring is expanded to becoming hole dimension by ground, and directly returns the entrance boring of hauling pipe road while reaming, completes paving
If fill mud, Specific construction by Grouting Pipe to the space between drill hole inner wall and crossline simultaneously
Step is as follows:
A, in the crossline of unearthed end laying construction feed pipe, construction drainage pipe, construction Grouting Pipe
And supply line；
B, the construction feed pipe that will be travelling through in pipeline, construction drainage pipe, construction Grouting Pipe and rig
Feed pipe (14), drain pipe (15), Grouting Pipe (13) connect, will be travelling through pipeline and rig
The hauling pipe pipe nipple (4) of end connects；
C, after horizontal directional drilling machine completes pilot hole operation, connect this rig at unearthed end；
D, use horizontal directional drill machine travel drilling rod, draw this rig entrance operating pit with drilling rod and start
Driving；
E, this rig cut stratum, directly by the size needed for boring expansion to crossline, draining
Drilling cuttings is drained into the end that is unearthed by pipe (15)；Sync pulling crossline during this rig driving, until entering
Soil end horizontal directional drilling machine side, simultaneously by Grouting Pipe (13) between drill hole inner wall and crossline
Mud is filled in space.
Pipeline Crossing by Horizontal Directional Drilling construction method the most according to claim 1, it is characterised in that this
Rig is provided pull strength by the horizontal directional drilling machine of the end that buries, and controls tunneling direction.
Pipeline Crossing by Horizontal Directional Drilling construction method the most according to claim 1, it is characterised in that drive
Power needed for motivation structure (9) drives cutterhead (6) cutting stratum, drive mechanism (9) is fixed from level
The high-pressure slurry provided by drilling rod to rig.
Pipeline Crossing by Horizontal Directional Drilling construction method the most according to claim 1, it is characterised in that drive
Power needed for motivation structure (9) drives cutterhead (6) cutting stratum, drive mechanism (9) supplies from ground
Electric installation and supply line.
Pipeline Crossing by Horizontal Directional Drilling construction method the most according to claim 1, it is characterised in that row
Slag method is that mud is injected by drilling rod by horizontal directional drilling machine, in rig front end at the end that buries
Mix with drilling cuttings in muddy water storehouse (1), mud suction mouth (2) enter drain pipe (15), through gravel pump (10)
Pressurization heel row is to the end that is unearthed.
Pipeline Crossing by Horizontal Directional Drilling construction method the most according to claim 1, it is characterised in that row
Slag mode is that muddy water is injected by feed pipe (14) at unearthed end, in the muddy water storehouse (1) of rig front end
In mix with drilling cuttings, by mud suction mouth (2) entrance drain pipe (15), through gravel pump (10) pressurization heel row
To the end that is unearthed.
Pipeline Crossing by Horizontal Directional Drilling construction method the most according to claim 1, it is characterised in that note
Slurry drag reduction mode is that thixotropic slurry injects through Grouting Pipe (13) at unearthed end, through the note of rig end
The space between crossline and borehole wall filled by slurry hole (11).
Pipeline Crossing by Horizontal Directional Drilling construction method the most according to claim 1, it is characterised in that
During horizontal directional drilling machine pull strength deficiency, at unearthed end, ejector sleeve machine, hoist engine equipment are set to passing through pipe
Line provides thrust, and auxiliary bore hole equipment tunnels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310217253.XA CN104213833B (en) | 2013-06-03 | 2013-06-03 | Pipeline Crossing by Horizontal Directional Drilling construction method and rig thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310217253.XA CN104213833B (en) | 2013-06-03 | 2013-06-03 | Pipeline Crossing by Horizontal Directional Drilling construction method and rig thereof |
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| Publication Number | Publication Date |
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| CN104213833A CN104213833A (en) | 2014-12-17 |
| CN104213833B true CN104213833B (en) | 2016-08-10 |
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| CN104563950A (en) * | 2014-12-25 | 2015-04-29 | 贵州省交通规划勘察设计研究院股份有限公司 | Impact holing boring slurry isolation device based on slurry outlet pipe and slag inlet pipe |
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| CN111368481A (en) * | 2020-03-29 | 2020-07-03 | 中国石油天然气集团有限公司 | Method for analyzing stability of directional perforation |
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| CN116537721B (en) * | 2023-06-27 | 2023-09-26 | 陕西路桥集团有限公司 | Slurry circulation construction process in underground directional drilling and laying construction |
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Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: China National Petroleum Corp. Patentee after: China Petroleum Pipeline Bureau Patentee after: China Petroleum Pipeline Bureau Engineering Co., Ltd. Address before: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee before: China National Petroleum Corp. Patentee before: China Petroleum Pipeline Bureau Patentee before: China Petroleum Pipeline Engineering Corporation |
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Effective date of registration: 20170215 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: China National Petroleum Corporation Patentee after: China Petroleum Pipeline Bureau Engineering Co., Ltd. Address before: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee before: China National Petroleum Corporation Patentee before: China Petroleum and Natural Gas Pipeline Bureau Patentee before: China Petroleum Pipeline Bureau Engineering Co., Ltd. |