CN203516977U - Cutting jacking machine head - Google Patents
Cutting jacking machine head Download PDFInfo
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- CN203516977U CN203516977U CN201320600463.2U CN201320600463U CN203516977U CN 203516977 U CN203516977 U CN 203516977U CN 201320600463 U CN201320600463 U CN 201320600463U CN 203516977 U CN203516977 U CN 203516977U
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- steel ring
- cutting
- spring
- jack
- front steel
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Abstract
The utility model discloses a cutting jacking machine head which comprises a rear steel ring and a front steel ring. The rear steel ring and the front steel ring are coaxially arranged in parallel. Pipeline deviation correction devices and buffer devices are arranged between the rear steel ring and the front steel ring. A cutting anti-collapse brim is arranged at the front end of the front steel ring. Each pipeline deviation correction device is a deviation correction hydraulic jack. The lower end of each jack is connected to the front surface of the rear steel ring and the upper end of each jack is connected to the back surface of the front steel ring. The number of the jacks is four and the jacks are evenly arranged. Each buffer device is a spring. Each spring is arranged between every two jacks. The number of the springs is also four and the springs are evenly arranged. The lower end of each spring is fixed to the front surface of the rear steel ring and the upper end of each spring abuts against the lower surface of the front steel ring. According to the cutting jacking machine head, the structure is simple, the effect is remarkable, the collapse phenomenon is effectively prevented, deviation generated in the pipeline jacking construction can be corrected conveniently, a sleeve bearing and inserting gap is small, the cutting jacking machine head is flat in the axial direction, and the direction control accuracy is high.
Description
Technical field
The utility model relates to sand in laying of oil, natural gas line, the special tool in the pipeline Crossing by Pipe Pushing Construction under quicksand geological condition, specifically cuts jacking head.
Background technique
Pipe-jacking technology is a kind of conventional trenchless technology, and highway crossing, railway, river that can be safe even can pass under building, effectively carry out environmental protection.Pipe-jacking technology construction is without cutting off construction, avoids affecting traffic, destroy road surface, destroy surface vegetation, affecting normal activity and resident's daily life of excavation construction, and has a large amount of earthworks, shortened the construction period greatly.And in push pipe process, can run into different soil properties, and relate to sand in laying of oil, natural gas line, the pipeline Crossing by Pipe Pushing Construction under quicksand geological condition, under this geological condition, to construct, jacking resistance and correction difficulty are large.
In oil, natural gas line laid processes, frequent highway crossing and small rivers irrigation canals and ditches, when running into when passing through geological condition and being drift sand situation, sand very easily liquefies, and after disturbance, the receptance of unstability and height is brought great difficulty to push pipe, by traditional jacking construction, will cause rear parados to collapse, roadbed sink, front the brim of a hat distortion, the defect such as is split in sleeve pipe top, and construction safety and construction quality are caused to very big hidden danger.
Because geology is quicksand, what in push pipe process, difficulty was larger is that control is to problem, as jacking routinely, outflow along with water and quicksand, certainly will cause subsiding of sleeve pipe circumferencial direction, cause sleeve pipe because of Action of Gravity Field, at axial direction, produce deviation, seriously cause sleeve pipe and the sleeve part fissure of displacement, supervisor cannot penetrate.
Summary of the invention
The purpose of this utility model is to provide cutting jacking head, simple in structure, successful, the generation of phenomenon effectively prevents from caving in, the deviation of being simultaneously convenient to producing in jacking construction is carried out convenient effective correction, and sleeve pipe socket joint gaping of joints is little, smooth on axial direction, control high to precision.
In order to reach above-mentioned purpose, the utility model has adopted following technological scheme, cutting jacking head, comprise rear steel ring and front steel ring that coaxial-type is set up in parallel, between described rear steel ring and front steel ring, be provided with pipeline bias correction device and damping device, described front steel ring front end is provided with the anti-collapse the brim of a hat of cutting.
Described pipeline bias correction device is correction hydraulic jack, and the lower end of this jack is connected to the front surface of rear steel ring, and upper end is connected to the rear surface of front steel ring, and this jack is set to 4 and uniform setting.
Described damping device is spring, and this spring is arranged on jack neutral position between two, and spring is also set to 4 and uniform setting; Described spring lower end is fixed on rear steel ring front surface, the lower surface butt of upper end and front steel ring.
The anti-collapse the brim of a hat of described cutting is welded on front steel ring by circumferencial direction, lap width 40mm; After cutting the anti-collapse the brim of a hat and launching for end length equals the outer perimeter of front steel ring and high in the isosceles triangle of 1000mm.
Described rear steel ring external diameter 1800mm, internal diameter 1500mm, yield value δ=20mm; Front steel ring external diameter 1800mm, internal diameter 1500mm, yield value δ=40mm.
Described rear steel ring rear surface is also provided with the linkage structure for adapter sleeve.
Compared to prior art, the utlity model has following beneficial effect:
During use; head is stuck on cement sleeve pipe and carries out jacking construction, and the anti-collapse the brim of a hat is directly cut in sand, like this; carry out again shoveling work; owing to there being the protection of pipe cap, staff can carry out under safety protection on the one hand, on the other hand; due to stopping of pipe cap; prevent that again a large amount of quicksands from caving in, or sand production rate is excessive, and causes the problem of surface subsidence etc.When pipeline occurs deviation in jacking process, can after correction, before each jacking, carry out by regulating four correction jack that the very heavy liftout tank mouth of deflection one side can be proofreaied and correct pipeline deviation the most easily correction when now sand is minimum in pipe.
Accompanying drawing explanation
Fig. 1 is the plan view of cutting jacking head of the present utility model;
Fig. 2 is the side view of cutting jacking head of the present utility model;
Fig. 3 is the plan view of cutting jacking head of the present utility model.
Embodiment
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, yet accompanying drawing only provides the use of reference with explanation, is not used for the utility model to be limited.
As Figure 1-3, cutting jacking head, comprise rear steel ring 1(external diameter 1800mm, internal diameter 1500mm, yield value δ=20mm), front steel ring 2(external diameter 1800mm, internal diameter 1500mm, yield value δ=40mm), cut anti-collapse the brim of a hat 3(yield value δ=20mm), correction hydraulic jack 4,5,6,7, spring 8,9,10,11.For guaranteeing head toughness and intensity, adopt L245 steel to do.
The rear steel ring 1 that coaxial-type is set up in parallel and front steel ring 2, be provided with pipeline bias correction device and damping device between described rear steel ring and front steel ring, and described front steel ring front end is provided with the anti-collapse the brim of a hat 3 of cutting.Described pipeline bias correction device is correction hydraulic jack, and the lower end of this jack is connected to the front surface of rear steel ring, and upper end is connected to the rear surface of front steel ring, and this jack is set to 4 and uniform setting, is respectively correction hydraulic jack 4,5,6,7.Described damping device is spring, and this spring is arranged on jack neutral position between two, and spring is also set to 4 and uniform setting, is respectively spring 8,9,10,11; Described spring lower end is fixed on rear steel ring front surface, the lower surface butt of upper end and front steel ring.
The anti-collapse the brim of a hat 3 of cutting is welded on front steel ring 2 to lap width 40mm by circumferencial direction.Cut the outer perimeter that the anti-collapse the brim of a hat 3 launches to equal for end length afterwards front steel ring 2, high in the isosceles triangle of 1000mm.
During use, sleeve pipe and rear steel ring 1 are joined, head are first headed in soil, in then managing, fall soil, to the lower hole of every pipe joint lifting group to time, the measurement that be correlated with in time, and just should measuring once when normal jacking 1～3m.Tube coupling, when jacking, must strictly be controlled orientation and the elevation of jacking pipeline section center line, to guarantee the quality of push pipe.When there is deviation in pipeline in jacking process, can be by regulating four correction hydraulic jack 4,5,6,7 that the very heavy liftout tank mouth of deflection one side can be proofreaied and correct pipeline deviation.
The foregoing is only preferred embodiment of the present utility model, non-in order to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (6)
1. cutting jacking head, is characterized in that, comprises rear steel ring and front steel ring that coaxial-type is set up in parallel, between described rear steel ring and front steel ring, is provided with pipeline bias correction device and damping device, and described front steel ring front end is provided with the anti-collapse the brim of a hat of cutting.
2. cutting jacking head according to claim 1, it is characterized in that, described pipeline bias correction device is correction hydraulic jack, and the lower end of this jack is connected to the front surface of rear steel ring, upper end is connected to the rear surface of front steel ring, and this jack is set to 4 and uniform setting.
3. cutting jacking head according to claim 2, is characterized in that, described damping device is spring, and this spring is arranged on jack neutral position between two, and spring is also set to 4 and uniform setting; Described spring lower end is fixed on rear steel ring front surface, the lower surface butt of upper end and front steel ring.
4. cutting jacking head according to claim 1, is characterized in that, the anti-collapse the brim of a hat of described cutting is welded on front steel ring by circumferencial direction, lap width 40mm; After cutting the anti-collapse the brim of a hat and launching for end length equals the outer perimeter of front steel ring and high in the isosceles triangle of 1000mm.
5. cutting jacking head according to claim 1, is characterized in that, described rear steel ring external diameter 1800mm, internal diameter 1500mm, yield value δ=20mm; Front steel ring external diameter 1800mm, internal diameter 1500mm, yield value δ=40mm.
6. cutting jacking head according to claim 1, is characterized in that, described rear steel ring rear surface is also provided with the linkage structure for adapter sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600463.2U CN203516977U (en) | 2013-09-27 | 2013-09-27 | Cutting jacking machine head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600463.2U CN203516977U (en) | 2013-09-27 | 2013-09-27 | Cutting jacking machine head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516977U true CN203516977U (en) | 2014-04-02 |
Family
ID=50375908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320600463.2U Expired - Lifetime CN203516977U (en) | 2013-09-27 | 2013-09-27 | Cutting jacking machine head |
Country Status (1)
| Country | Link |
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| CN (1) | CN203516977U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485426A (en) * | 2016-01-22 | 2016-04-13 | 李闻勇 | Special correcting device for jacking pipes |
| CN107060042A (en) * | 2017-06-28 | 2017-08-18 | 合肥市闵葵电力工程有限公司 | A kind of construction method of outdoor drainage pipeline |
| CN108980462A (en) * | 2018-10-18 | 2018-12-11 | 上海公路桥梁（集团）有限公司 | Steel jacking pipe joints relay well and its construction method |
-
2013
- 2013-09-27 CN CN201320600463.2U patent/CN203516977U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485426A (en) * | 2016-01-22 | 2016-04-13 | 李闻勇 | Special correcting device for jacking pipes |
| CN105485426B (en) * | 2016-01-22 | 2018-01-09 | 李闻勇 | A kind of push pipe special correcting circuit device |
| CN107060042A (en) * | 2017-06-28 | 2017-08-18 | 合肥市闵葵电力工程有限公司 | A kind of construction method of outdoor drainage pipeline |
| CN108980462A (en) * | 2018-10-18 | 2018-12-11 | 上海公路桥梁（集团）有限公司 | Steel jacking pipe joints relay well and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180402 Address after: 100020 Beijing, Beichen West Road, No. 8 Beichen world center, block A, No. 703, No. Co-patentee after: SINOPEC SHENGLI OIL CONSTRUCTION ENGINEERING Co.,Ltd. Patentee after: SINOPEC OILFIELD SERVICE Corp. Address before: Shandong province Dongying City Road 257064 West Dongying District No. 324 Patentee before: SINOPEC SHENGLI OIL CONSTRUCTION ENGINEERING Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |