CN101158270A - Prime hole reverse pushing construction method in horizontal orienting drilling and prime hole reverse pushing device - Google Patents
Prime hole reverse pushing construction method in horizontal orienting drilling and prime hole reverse pushing device Download PDFInfo
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- CN101158270A CN101158270A CNA200710170589XA CN200710170589A CN101158270A CN 101158270 A CN101158270 A CN 101158270A CN A200710170589X A CNA200710170589X A CN A200710170589XA CN 200710170589 A CN200710170589 A CN 200710170589A CN 101158270 A CN101158270 A CN 101158270A
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Abstract
The invention discloses a raw-hole reverse-pushing construction plan used for a horizontal directional boring. The plan includes the following: step 1, guiding hole boring procedure; step 2, reversing hole-enlarging procedure that a reverse-enlarger is connected with a tail end of a bore rod of a soil outlet end and the reverse-enlarger is used for reversely enlarging the hole from the soil outlet end to a soil inlet end; step 3, raw-hole reverse-pushing enlarging procedure that a reverse-pusher is connected with a tail end of the bore rod of the soil inlet end and a moving face of the reverse-pusher faces the soil outlet end, and the reverse-pusher is used for reversely enlarging the hole from the soil inlet end to a soil outlet end in the raw-hole channel; step 4, pipeline reverse-dragging procedure that when the hole channel diameter is larger than that of the reverser-dragging pipeline after enlarging, a reversely dragged pipeline is connected with a back end of the reverse-enlarger and a pipeline reverse-dragging work is carried out in the hole channel to realize a non-digging underground transmission of the pipeline. The invention can repeat the step 2 and the step 3. The invention overcomes a defect that a non-digging construction is always limited by a site condition of the soil outlet end and a practicality of the plan is enhanced. The invention also provides a raw-hole reverse-pusher used for the construction plan.
Description
Technical field
The present invention relates to the underground construction field, relate in particular to and a kind ofly be applied to the job practices that horizontal orientation creeps into, and the foramen primum that is applied to this job practices device of retrodicting.
Background technology
In the prior art, the horizontal directional drill construction has been applied in underground the passing through in the operation to river course, subterranean wall etc. frequently.After finishing preparation of construction, existing horizontal directional drill no-excavation construction method mainly may further comprise the steps:
At first bore pilot hole, rig creeps into up to the end that is unearthed along planned course from the end that buries; In drilling process, make the pilot hole curve as far as possible level and smooth, return in order to follow-up pre-reaming construction and pipeline and drag construction.
, utilize reamer pilot hole carried out classification reaming, so that the channel diameter after the reaming is greater than returning the hauling pipe linear diameter thereafter.Usually, need carry out repeatedly reaming to pilot hole.In ream operation repeatedly, the equal jointed rod in two ends that is in the reamer in the duct is done back to expand traction and is used.Return when expanding, the rig that is positioned at the end that buries whenever pulls out the length of a drilling rod, just this drilling rod is unloaded and is transported to the end that is unearthed, unearthed end connects a drilling rod simultaneously, traction during as subordinate's reaming, so circulation is returned the expansion device when holding the end that buries to be drawn out ground by being unearthed like this, can stay in the duct all the time as the drilling rod of traction.
After reaming finishes, will return and expand device and connect, and with shackle with treat back to drag place pipeline on the turning rolls to be connected to carry out pipeline to return to drag the final hauling pipe line of realizing back.
But in the above-mentioned work progress in horizontal orientation creeps into, run into some because the constructional difficulties that objective condition causes through regular meeting, concrete as: it is relatively poor that 1, orientation gets out the site condition of soil end, narrow as the place, border on the river, swamp land or greening protection land used etc., the construction space in the drilling rod attended operation of holding of being unearthed when making back reaming is restricted; 2, bury from pilot hole and hold pilot hole to be unearthed to have inconvenient traffic between the end, when causing back the reaming construction, drilling rod buries from pilot hole, and to be transported to the be unearthed circulation transportation of end of pilot hole difficult for end; When 3, non-excavating construction length is longer, need a large amount of drilling rod of deposit, improved the cost of construction owing to returning the reaming circulation.The existence of the problems referred to above, greatly perplexed the enforcement of horizontal directional drill non-excavating construction, thereby cause long so that reaming of delayed works or the engineering time serious consequences such as causing engineering accident of caving in, become the technology barrier that the horizontal directional drill non-excavating construction is further applied.
Summary of the invention
Because the above-mentioned defective of prior art, technical problem to be solved by this invention provides that a kind of to be subjected to orientation to get out the place restriction of soil end little, exempts horizontal orientation that the drilling rod circulation the transports foramen primum in the creeping into job practices of retrodicting.
For achieving the above object, the invention provides the foramen primum of a kind of horizontal orientation in the creeping into job practices of retrodicting, may further comprise the steps:
Step 1 is bored the pilot hole operation, and rig creeps into up to the end that is unearthed along planned course from the end that buries;
Step 2 is returned the reaming operation, connects back the expansion device at the drilling rod end of holding that is unearthed, and utilizes back the expansion device to hold back the reaming road to the end that buries from being unearthed;
Step 3, the foramen primum reaming operation of retrodicting at the terminal device of retrodicting that connects of the drilling rod of the end that buries, makes the device running face of retrodicting towards the end that is unearthed, utilize retrodict device in former duct from end to the end that is unearthed that the buries reaming of retrodicting;
Step 4 is returned the hauling pipe line procedures,, connects and treats back the pipeline that drags going back to expansion device rear end greater than after returning the hauling pipe linear diameter at the channel diameter after the reaming, implements pipeline and return and drag operation, underground the passing through of non-excavation of realization pipeline in the duct.
Preferably, the channel diameter after the reaming be back the hauling pipe linear diameter 1.3--1.5 doubly.
As a kind of improvement, after step 3, repeating step two and step 3 through repeatedly returning reaming operation and the foramen primum reaming operation of retrodicting, realize that channel diameter is greater than returning the hauling pipe linear diameter.
The job practices of retrodicting of the present invention; owing to adopted the foramen primum of the particular design device of retrodicting; need not carry out drilling rod at unearthed end connects; overcome original job practices and be subjected to the big shortcoming of unearthed end place limitation; when unearthed end condition relatively poor (, river bank narrow, roadside, marsh and greening protection land used etc.), improved the application of horizontal directional drill non-excavating construction as the place.
Owing to only retrodict device towards an end jointed rod of rig returning expansion device, foramen primum, save in the operation of burying end and being unearthed and transporting drilling rod back and forth between the end, overcome the circulation difficulty of drilling rod when traffic condition is relatively poor.
Simultaneously,, when underground construction length is longer, the demand of drilling rod can doublely not increased the defective of drilling rod lazy weight when having overcome the transhipment drilling rod because only an end needs drilling rod.
The present invention also provides a kind of foramen primum that is applied to above-mentioned job practices device of retrodicting, and comprises the cylindrical shell of a hollow, and first end of described cylindrical shell is the circular cone table top, and the small end of described circular cone table top is provided with hemisphere top, and second end of described cylindrical shell is provided with a junction; Offer small sircle hole respectively on described cylindrical shell and the described circular cone table top.
The foramen primum of the present invention device of retrodicting owing to adopted hollow structure, has alleviated the weight of the device of retrodicting.The small sircle hole of retrodicting on the device is used as mud system, the resistance when retrodicting to alleviate and replenish back reaming mud to reach the effect of retaining wall.The connecting portion of cylindrical shell second end has good being connected, transfer torque with drilling rod.The circular cone table top is used as the running face of the device of retrodicting, to alleviate the resistance of retrodicting.Hemisphere on circular cone table top top is ball cap shape, to keep certain resistance in order to avoid the device of retrodicting deflects away from former duct in construction.The main body of device retrodicted is a cylindrical shell, plays steersman's effect, does not deflect away from former duct to guarantee it.
Because said structure, the foramen primum of the present invention utensil of retrodicting has simple in structure lightly, and advantage such as guidance quality is good, and moving resistance is little has satisfied the technical requirements that foramen primum is retrodicted job practices.
Be described further below with reference to the technique effect of accompanying drawing, to understand purpose of the present invention, feature and effect fully design of the present invention, concrete structure and generation.
Description of drawings
Fig. 1 returns reaming working procedure schematic diagram in job practices one specific embodiment of the present invention;
Fig. 2 be embodiment illustrated in fig. 1 in the foramen primum working procedure schematic diagram of retrodicting;
Fig. 3 is the retrodict structural representation of device of foramen primum of the present invention.
The specific embodiment
The invention provides the foramen primum of a kind of horizontal orientation in the creeping into job practices of retrodicting, may further comprise the steps:
Step 1 is bored the pilot hole operation, and rig creeps into up to the end that is unearthed along planned course from the end that buries; Usually, make the pilot hole curve as far as possible level and smooth, return in order to follow-up pre-reaming construction and pipeline and drag construction.
Step 2 is returned the reaming operation, as shown in Figure 1, connects back expansion device 1 in that the drilling rod 4 of the end 3 that is unearthed is terminal, utilizes back expansion device 1 to hold 7 times reaming roads 6 to hold 3 to burying from unearthed.Returning expansion device 1 only fixedlys connected by screw thread at running face one end and drilling rod 4.As the job practices of prior art, drilling rod 4 reaches back expansion device 1 and is hollow, returns on the expansion device 1 and offers a plurality of mud hole 2.Mud 5 is input to back from drilling rod 4 in the expansion device 1, is ejected into from mud hole 2 on the sidewall in duct 6.
Step 3, the foramen primum reaming operation of retrodicting, as shown in Figure 2, at the drilling rod 4 terminal devices 11 of retrodicting that connect of the end 3 that buries, the running face that makes the device 11 of retrodicting is towards the end 7 that is unearthed, utilize retrodict device 11 in former duct 6 from end 3 to the end 7 that is unearthed that the buries reaming of retrodicting.The device 11 of retrodicting is only fixedlyed connected with drilling rod 4 by screw thread at the link back to running face.Similarly, the drilling rod 4 and the device 11 of retrodicting are hollow, offer a plurality of mud hole 2 on the device 11 of retrodicting.Mud 5 is input to from drilling rod 4 in the device 11 of retrodicting, and is ejected into from mud hole 2 on the sidewall in duct 6.
The moment of torsion that the machine instrumentation table shows when constructing according to reaming, slide force numerical value and the diameter that goes back to the hauling pipe road, the number of times of decision reaming.Usually, in order to make the aperture that gets out, need carry out repeatedly the duct greater than the diameter that returns the hauling pipe line, the classification reaming.The construction sequence of repeatedly returning expansion promptly is repetition above-mentioned steps two and step 3, up to the channel diameter after reaming greater than returning the hauling pipe linear diameter.Especially, be the facility of subsequent job, the channel diameter after the reaming should reach back 1.3-1.5 times of hauling pipe linear diameter.According to the diameter that goes back to the hauling pipe road, usually to carry out returning of Φ 300mm, Φ 400mm, Φ 500mm, Φ 600mm, Φ 700mm etc. successively and expand construction.
Step 4 is returned the hauling pipe line procedures, after reaming finishes, to return and expand device and connect, and be connected with the pipeline for the treatment of back to drag on the turning rolls that places with shackle, the pipeline that drags is treated back in time expansion device rear end connection, the enforcement pipeline returns and drags operation in the duct, realizes underground the passing through of non-excavation of pipeline.
According to the rule of construction operation, usually, also comprise the operation of withdrawing thereafter.Pass through finish after, remove drilling equipment, remove the various discarded objects that construction stays, mud is dealt carefully with, and withdraws according to approach course.
The job practices of retrodicting of the present invention; owing to adopted the foramen primum of the particular design device of retrodicting; need not carry out drilling rod at unearthed end connects; overcome original job practices and be subjected to the big shortcoming of unearthed end place limitation; when unearthed end condition relatively poor (, river bank narrow, roadside, marsh and greening protection land used etc.), improved the application of horizontal directional drill non-excavating construction as the place.
Owing to only retrodict device towards an end jointed rod of rig returning expansion device, foramen primum, save in the operation of burying end and being unearthed and transporting drilling rod back and forth between the end, overcome the circulation difficulty of drilling rod when traffic condition is relatively poor.
Simultaneously,, when underground construction length is longer, the demand of drilling rod can doublely not increased the defective of drilling rod lazy weight when having overcome the transhipment drilling rod because only an end needs drilling rod.
As shown in Figure 3, the present invention also provides a kind of foramen primum that is applied to above-mentioned job practices device of retrodicting, and comprises the cylindrical shell 5 of a hollow, and first end of cylindrical shell 5 is a circular cone table top 2, the small end of circular cone table top 2 is provided with hemisphere top 4, and second end of cylindrical shell 5 is provided with a junction 1; Offer small sircle hole 3 respectively on cylindrical shell 5 and the circular cone table top 2.
The device main body of retrodicting of the present invention is a cylindrical shell, plays steersman's effect, does not deflect away from former duct to guarantee it.Adopt hollow structure, to alleviate the deadweight of the device of retrodicting.In the device of retrodicting of hollow, be provided with a plurality of small sircle holes 3, be used as the mud hole, cooperate mud system, alleviate the resistance when retrodicting and replenish back the effect that reaming mud reaches retaining wall.
The connecting portion of device of retrodicting forms good being connected by screw thread and drilling rod.With a connecting portion end dorsad be the running face of device of retrodicting, this running face is the frustum face, alleviates the resistance of retrodicting.Be set to the hemisphere top on the top of running face,, keep certain resistance in order to avoid the device of retrodicting deflects away from former duct as ball cap shape.
The foramen primum of the present invention device of retrodicting owing to adopted said structure, has simple in structure lightly, and advantage such as guidance quality is good, and moving resistance is little has satisfied the technical requirements that foramen primum is retrodicted job practices.
In sum, described in this manual is several preferred embodiment of the present invention, and above embodiment is only unrestricted in order to technical scheme of the present invention to be described.All technician in the art all should be within claim protection domain of the present invention under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (6)
1. the job practices of retrodicting of the foramen primum during a horizontal orientation creeps into may further comprise the steps:
Step 1 is bored the pilot hole operation, and rig creeps into up to the end that is unearthed along planned course from the end that buries;
Step 2 is returned the reaming operation, connects back the expansion device at the drilling rod end of holding that is unearthed, and utilizes back the expansion device to hold back the reaming road to the end that buries from being unearthed;
Step 3, the foramen primum reaming operation of retrodicting at the terminal device of retrodicting that connects of the drilling rod of the end that buries, makes the device running face of retrodicting towards the end that is unearthed, utilize retrodict device in former duct from end to the end that is unearthed that the buries reaming of retrodicting;
Step 4 is returned the hauling pipe line procedures,, connects and treats back the pipeline that drags going back to expansion device rear end greater than after returning the hauling pipe linear diameter at the channel diameter after the reaming, implements pipeline and return and drag operation, underground the passing through of non-excavation of realization pipeline in the duct.
2. the foramen primum as claimed in claim 1 job practices of retrodicting is characterized in that: the 1.3--1.5 that the channel diameter after the reaming is back the hauling pipe linear diameter doubly.
3. the foramen primum as claimed in claim 1 or 2 job practices of retrodicting is characterized in that: after step 3, repeating step two and step 3 make channel diameter greater than the diameter that returns the hauling pipe line through repeatedly returning reaming operation and the foramen primum reaming operation of retrodicting.
4. a foramen primum that is applied to the arbitrary described job practices of claim 1 to 3 device of retrodicting comprises the cylindrical shell of a hollow having one first end and one second end; It is characterized in that: first end of described cylindrical shell is the circular cone table top, the small end sealing of described circular cone table top, and second end of described cylindrical shell is set with a junction; Offer small sircle hole on the described circular cone table top.
5. the foramen primum as claimed in claim 4 device of retrodicting is characterized in that: the small end sealing of described circular cone table top forms half ball top.
6. as claim 4 or the 5 described foramen primums device of retrodicting, it is characterized in that: offer small sircle hole on the described cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710170589XA CN101158270B (en) | 2007-11-19 | 2007-11-19 | Prime hole reverse pushing construction method in horizontal orienting drilling and prime hole reverse pushing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710170589XA CN101158270B (en) | 2007-11-19 | 2007-11-19 | Prime hole reverse pushing construction method in horizontal orienting drilling and prime hole reverse pushing device |
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| CN101158270A true CN101158270A (en) | 2008-04-09 |
| CN101158270B CN101158270B (en) | 2012-06-27 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793332A (en) * | 2010-03-18 | 2010-08-04 | 中国石油化工集团公司 | Horizontal directional drilling composite-curve pipeline crossing construction method |
| CN101793125A (en) * | 2010-03-18 | 2010-08-04 | 中国石油化工集团公司 | Horizontal directional drilling pipeline rock strata crossing composite reaming construction method |
| CN101457853B (en) * | 2008-11-20 | 2012-04-25 | 江苏广宇建设集团有限公司 | Non-digging tube-pulling construction method |
| CN106988781A (en) * | 2017-04-25 | 2017-07-28 | 中煤科工集团西安研究院有限公司 | Coal mine down-hole tunnel is precisely to wearing draining hole construction method |
| CN108361466A (en) * | 2018-02-01 | 2018-08-03 | 杭州大江东城市设施管养有限公司 | A kind of municipal pipeline maintenance construction technique |
| CN109465599A (en) * | 2018-10-10 | 2019-03-15 | 中国二冶集团有限公司 | Return the production and application method towed the head |
| CN116905958A (en) * | 2023-08-28 | 2023-10-20 | 中煤科工集团重庆研究院有限公司 | Directional drilling machine power head |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031366C (en) * | 1991-04-10 | 1996-03-20 | 田兆海 | Under ground construction method and device for laying pipe line |
| US5580188A (en) * | 1995-07-17 | 1996-12-03 | Nowak Construction Co., Inc. | Method for replacing buried pipe |
| CN2767634Y (en) * | 2004-04-30 | 2006-03-29 | 上海威猛非开挖技术工程有限公司 | Collapse preventing hole enlarger for drilling through soft stratum by horizontal directional drill |
| CN201095956Y (en) * | 2007-11-19 | 2008-08-06 | 上海煤气第二管线工程有限公司 | Hole reverse pushing device |
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2007
- 2007-11-19 CN CN200710170589XA patent/CN101158270B/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101457853B (en) * | 2008-11-20 | 2012-04-25 | 江苏广宇建设集团有限公司 | Non-digging tube-pulling construction method |
| CN101793332A (en) * | 2010-03-18 | 2010-08-04 | 中国石油化工集团公司 | Horizontal directional drilling composite-curve pipeline crossing construction method |
| CN101793125A (en) * | 2010-03-18 | 2010-08-04 | 中国石油化工集团公司 | Horizontal directional drilling pipeline rock strata crossing composite reaming construction method |
| CN101793332B (en) * | 2010-03-18 | 2011-10-19 | 中国石油化工集团公司 | Horizontal directional drilling composite-curve pipeline crossing construction method |
| CN101793125B (en) * | 2010-03-18 | 2012-08-29 | 中国石油化工集团公司 | Horizontal directional drilling pipeline rock strata crossing composite reaming construction method |
| CN106988781A (en) * | 2017-04-25 | 2017-07-28 | 中煤科工集团西安研究院有限公司 | Coal mine down-hole tunnel is precisely to wearing draining hole construction method |
| CN106988781B (en) * | 2017-04-25 | 2019-10-01 | 中煤科工集团西安研究院有限公司 | Coal mine down-hole tunnel is precisely to wearing draining hole construction method |
| CN108361466A (en) * | 2018-02-01 | 2018-08-03 | 杭州大江东城市设施管养有限公司 | A kind of municipal pipeline maintenance construction technique |
| CN109465599A (en) * | 2018-10-10 | 2019-03-15 | 中国二冶集团有限公司 | Return the production and application method towed the head |
| CN116905958A (en) * | 2023-08-28 | 2023-10-20 | 中煤科工集团重庆研究院有限公司 | Directional drilling machine power head |
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| CN101158270B (en) | 2012-06-27 |
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Address after: No.162 Weifang Road, China (Shanghai) pilot Free Trade Zone, 200122 Patentee after: Shanghai Energy Construction Group Co.,Ltd. Address before: 200122 No. 162, Weifang Road, Shanghai, Pudong Patentee before: SHANGHAI MUNICIPAL GAS NO.2 PIPELINES ENGINEERING Co.,Ltd. |
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