CN108266202A - Rectangular pipe jacking machine excavation face blind area breaker and its method - Google Patents
Rectangular pipe jacking machine excavation face blind area breaker and its method Download PDFInfo
- Publication number
- CN108266202A CN108266202A CN201810264638.4A CN201810264638A CN108266202A CN 108266202 A CN108266202 A CN 108266202A CN 201810264638 A CN201810264638 A CN 201810264638A CN 108266202 A CN108266202 A CN 108266202A
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- China
- Prior art keywords
- high pressure
- breaker
- blind area
- rectangular pipe
- pipe jacking
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1066—Making by using boring or cutting machines with fluid jets
Abstract
The present invention relates to trenchless engineering equipment technical fields, specifically a kind of rectangular pipe jacking machine excavation face blind area breaker and its method, driving mechanism is equipped in the breaker, the output terminal of the driving mechanism and cross the taper device that breaks ground are connected, several axial high pressure nozzles are equipped with around the cross taper device that breaks ground and several radial high-pressure nozzles, the axial high pressure nozzle and radial high-pressure nozzle are connected with high-pressure water.Compared with the existing technology, composite structure simple possible is easily installed and dismantles, the advantage is that the present invention：Larger top power can be provided, the device that breaks ground is in " cross taper ", can generate very big pressure, greatly improve efficiency of breaking ground；And surrounding adds the high-pressure water nozzle in different jet direction, while as cleaning, cooling device, participates in the cutwork of abolishing of soft rock and the stabilization zone soil body, improves stock-removing efficiency, and can also soften the soil body abolished, smoothly excluded conducive to the soil body.
Description
Technical field
The present invention relates to trenchless engineering device and method technical field, a kind of specifically rectangular pipe jacking machine excavation face
Blind area breaker and its method.
Background technology
At present, most rectangular top pipe constructions are using rectangular pipe jacking machine, and the push pipe of this type is regardless of each cutter diameter
How to distribute, it always can there are the regions that push pipe can not be cut.These regions can only utilize the sphenoid of its end face in construction
It waits special constructions that the soil body is broken by force or is depressed into knife cutting area and cut, thus largely increase jacking resistance,
Especially in soft rock strata and stabilization zone.
Therefore, it is necessary to design a kind of novel rectangular pipe jacking machine excavation face blind area breaker and its method.
Invention content
It is an object of the invention to solve the deficiencies in the prior art, a kind of rectangular pipe jacking machine excavation face blind area is provided and crushes dress
It puts and its method, raising is broken ground efficiency, and is particularly suitable for the construction of soft rock strata and stabilization zone.
To achieve these goals, a kind of rectangular pipe jacking machine excavation face blind area breaker, the breaker are designed
Interior to be equipped with driving mechanism, output terminal and the cross taper of the driving mechanism device that breaks ground are connected, the circular cross taper
The device that breaks ground is equipped with several axial high pressure nozzles and several radial high-pressure nozzles, the axial high pressure nozzle and radial high-pressure spray
Mouth is connected with high-pressure water.
The cross taper breaks ground device one end as the connecting pin for being connected with output terminal, and the other end is working end,
The working end is cross taper.
The first longitudinal direction structure and second that the cross taper is arranged with by a transversary and transversary both sides
Vertical structure is formed, and the transversary collectively forms cross with the first longitudinal direction structure and second longitudinal direction structure,
The cross section of the transversary, first longitudinal direction structure and second longitudinal direction structure is gradually reduced along the direction far from connecting pin.
Described driving mechanism one end is equipped with drive end bearing bracket, and the drive end bearing bracket is connected by bolt with the outer housing,
So as to fulfill the fixation of driving mechanism and outer housing.
The outer housing is equipped with several axial high pressure nozzles and several radial high-pressure nozzles.
Circumferential high pressure aquaporin, the high pressure aquaporin and several axial high pressures are equipped in the outer housing
Nozzle and several radial high-pressure nozzles are connected, and the external hull surface is additionally provided with the high pressure water being connected with high pressure aquaporin and connects
Interface, for connecting high-pressure water pipe.
Several axial high pressure nozzles and several radial high-pressure nozzles are arranged symmetrically, and described in the circumferential respectively
Axial high pressure nozzle and radial high-pressure nozzle between be in interlaced arrangement.
The present invention also designs a kind of breaking method using the rectangular pipe jacking machine excavation face blind area breaker, described
Method it is specific as follows：Step a. opens oil cylinder, refuels from oil inlet up to oil cylinder to full stroke so that oil cylinder and cross taper
The device that breaks ground stretches out, while injects high pressure water to high pressure aquaporin using high pressrue jet apparatus and high pressure water is kept uninterruptedly to note
Enter, until after the top power being subject to when fragmentation procedure reduces and keeps relative stability, then recyclable oil cylinder, it is high to be simultaneously stopped injection
Press water.
The method further includes：Step b. first withdraws oil cylinder, then refuels again from oil inlet, makes oil cylinder and cross taper
The device that breaks ground stretches out.
If top power does not reduce or reduces unobvious, continue to keep the injection of high pressure water, and repeated
Step b until top power reduces and keeps relative stability, and is finally withdrawing oil cylinder, the injection for stopping high pressure water.
The method further includes：While crushing operation is carried out, if using described several axial high pressure nozzles and
Trunk diameter carries out high pressure water washing to high pressure nozzle to work surface and breaker, is used to implement to the clear of work surface and breaker
It washes and cooling work, and improves stock-removing efficiency, while the soil body that softening has been abolished, realize the smooth exclusion for being cut the soil body.
Compared with the existing technology, composite structure simple possible is easily installed and dismantles, the advantage is that the present invention：It can carry
For larger top power, the device that breaks ground is in " cross taper ", can generate very big pressure, greatly improve efficiency of breaking ground；And surrounding is added not
With the high-pressure water nozzle of jet direction, while as cleaning, cooling device, the broken of soft rock and the stabilization zone soil body is participated in
Except cutwork, stock-removing efficiency is improved, and the soil body abolished can also be softened, smoothly excluded conducive to the soil body.
Description of the drawings
Fig. 1 is the structure diagram of breaker of the present invention in an embodiment.
Fig. 2 is the partial sectional view of Section A-A in Fig. 1 in an embodiment.
Fig. 3 is the distribution schematic diagram of high pressure nozzle of the present invention in an embodiment.
In figure：1. rear end cap；2. piston；3. piston rod；4. cylinder body；5. high-pressure water pipe；6. outer housing；The first diameters of 7-1.
To high pressure nozzle；7-2. first axis high pressure nozzles；7-3 the second radial high-pressure nozzles；The axial high pressure nozzles of 7-4 second；7-5
Third radial high-pressure nozzle；7-6 third axial direction high pressure nozzles；The 4th radial high-pressure nozzles of 7-7；The axial high pressure nozzles of 7-8 the 4th；
8. oil inlet；9. oil outlet；10. drive end bearing bracket；11. bolt；13. transversary 14. first of device 12. cross taper is broken ground
15. second longitudinal direction structure of vertical structure.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings, and the structure and principle of this device and method are to this profession
It is very clearly for people.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Referring to Fig. 1, the breaker includes driving mechanism, and hydraulic cylinder is used in present embodiment as driving machine
Structure.The break ground connecting pin of device of the output terminal of the hydraulic cylinder and cross taper is connected, and is additionally provided on the outside of output terminal outer
Housing, hydraulic cylinder are arranged with drive end bearing bracket in output terminal, and the drive end bearing bracket is connected by bolt with the outer housing, so as to
Realize the fixation of driving mechanism and outer housing, outer casing ends are equipped with opening, for cross taper to be made to break ground the working end of device
Expose outside outer housing.Rear end cap is additionally provided in the hydraulic cylinder other end, protective casing is equipped between rear end cap and drive end bearing bracket, is prevented
Protective case body is equipped with the oil inlet and oil outlet being connected with hydraulic cylinder.On the outer housing, around the cross cone
Shape breaks ground device equipped with several axial high pressure nozzles and several radial high-pressure nozzles, the axial high pressure nozzle and radial high-pressure
Nozzle can mutually be fixed by bolt with outer housing, and circumferential high pressure aquaporin, the high pressure water are equipped in the outer housing
Channel is connected with described several axial high pressure nozzles and several radial high-pressure nozzles, the external hull surface be additionally provided with
The high pressure water connector that high pressure aquaporin is connected, for being connected with high-pressure water after connecting high-pressure water pipe.
Referring to Fig. 2, the cross taper break ground device working end for cross taper, the cross taper is by a horizontal stroke
The first longitudinal direction structure and second longitudinal direction structure that are arranged with to structure and transversary both sides are formed, the transversary with
The first longitudinal direction structure and second longitudinal direction structure collectively forms cross, the transversary, first longitudinal direction structure and
The cross section of second longitudinal direction structure is gradually reduced along the direction far from connecting pin.In the present embodiment, the transversary
For a trapezoidal steel plate, the first longitudinal direction structure and second longitudinal direction structure are respectively a triangular steel plate, and three collectively forms
Cross taper.
Referring to Fig. 3, described several axial high pressure nozzles and several radial high-pressure nozzles using cross taper break ground device as
Center is evenly arranged in the circumferential respectively, and the quantity of axial high pressure nozzle and the quantity of radial high-pressure nozzle can be corresponding
It can be different.Four axial high pressure nozzles and four radial high-pressure nozzles, adjacent two axial high pressures are employed in present embodiment
Angle between nozzle or adjacent two radial high-pressures nozzle is 90 °, and axial high pressure nozzle and straight where the line at center
Line does not coincide with the straight line where radial high-pressure nozzle and the line at center, i.e., so that the axial high pressure nozzle and radial direction
It is in interlaced arrangement between high pressure nozzle.
Embodiment one：The installation of rectangular pipe jacking machine excavation face blind area breaker.
1st, it referring to Fig. 1, according to blind area size, selects the oil cylinder of certain size, and cross taper is broken ground device and oil cylinder
Piston rod front end welds together, and oil cylinder stroke keeps zero shift.Suggest using one or two cutting apparatus in each blind area；
2nd, it by cylinder sizes, processes and assembles matched high-voltage water jet device；
3rd, the circular hole of adaptation cylinder body, bolt, high pressure aquaporin is cut out in rectangular pipe jacking machine excavates panel blind area；
4th, oil cylinder and cross taper are broken ground into device on push-bench panel, and are bolted.It may be noted that high pressure water
Channel is in inside outer housing, and all components in right side are directly contacted with stratum in shell, high pressure nozzle and Fig. 1；
5th, it installs, the test of being sealed property does not meet seal request and is then sealed processing.
Example two：The application method of rectangular pipe jacking machine excavation face blind area breaker.
1st, when boring chance soft rock or stabilization zone, it is found that when jacking power is excessive, oil cylinder is opened in time, refuel from oil inlet, simultaneously
Using high pressrue jet apparatus to high pressure aquaporin water filling；
2nd, oil cylinder stops refueling to full stroke, and high pressure water keeps uninterrupted injection；
3rd, after when top, power reduces and keeps relative stability, then recyclable oil cylinder, is simultaneously stopped injection high pressure water；
4th, when pushing up power and not reducing or reduces unobvious, the injection of high pressure water is kept, withdrawal oil cylinder is to close to oil cylinder initial position
It puts, it is proposed that zero stroke is not reached, then oil inlet refuels, and stretches out oil cylinder and cross taper and breaks ground device, so repeatedly, until
Top power reduces and keeps relative stability.And finally withdrawing oil cylinder, the injection for stopping high pressure water.
Claims (10)
1. a kind of rectangular pipe jacking machine excavation face blind area breaker, it is characterised in that driving machine is equipped in the breaker
Structure, output terminal and the cross taper of the driving mechanism device that breaks ground are connected, and are equipped with around the cross taper device that breaks ground
Several axial direction high pressure nozzles and several radial high-pressure nozzles, the axial high pressure nozzle and radial high-pressure nozzle and high-pressure water
It is connected.
2. rectangular pipe jacking machine excavation face blind area breaker as described in claim 1, it is characterised in that the cross taper
Device one end break ground as the connecting pin for being connected with output terminal, the other end is working end, and the working end is cross taper.
3. rectangular pipe jacking machine excavation face blind area breaker as claimed in claim 2, it is characterised in that the cross taper
The first longitudinal direction structure and second longitudinal direction structure being arranged with by a transversary and transversary both sides are formed, the transverse direction
Structure collectively forms cross, the transversary, first longitudinal direction with the first longitudinal direction structure and second longitudinal direction structure
The cross section of structure and second longitudinal direction structure is gradually reduced along the direction far from connecting pin.
4. rectangular pipe jacking machine excavation face blind area breaker as described in claim 1, it is characterised in that the driving mechanism
One end is equipped with drive end bearing bracket, and the drive end bearing bracket is connected by bolt with outer housing, so as to fulfill consolidating for driving mechanism and outer housing
It is fixed.
5. rectangular pipe jacking machine excavation face blind area breaker as claimed in claim 4, it is characterised in that on the outer housing
Equipped with several axial high pressure nozzles and several radial high-pressure nozzles.
6. rectangular pipe jacking machine excavation face blind area breaker as claimed in claim 5, it is characterised in that in the outer housing
Equipped with circumferential high pressure aquaporin, the high pressure aquaporin and several axial high pressure nozzles and several radial high-pressure nozzles
It is connected, the external hull surface is additionally provided with the high pressure water connector being connected with high pressure aquaporin, for connecting high-pressure water pipe.
7. rectangular pipe jacking machine excavation face blind area breaker as claimed in claim 5, it is characterised in that several axial directions
High pressure nozzle and several radial high-pressure nozzles are in be evenly arranged, and the axial high pressure nozzle and radial direction are high in the circumferential respectively
It is in interlaced arrangement between pressure nozzle.
8. a kind of breaking method using rectangular pipe jacking machine excavation face blind area breaker as described in claim 1, feature
It is that the method is specific as follows：
Step a. opens oil cylinder, refuels from oil inlet up to oil cylinder to full stroke so that oil cylinder and cross the taper device that breaks ground are stretched
Go out, while high pressure water is injected to high pressure aquaporin using high pressrue jet apparatus and high pressure water is kept uninterruptedly to inject, until when broken
After the top power being subject to during broken operation reduces and keeps relative stability, then recyclable oil cylinder, is simultaneously stopped injection high pressure water.
9. the breaking method of rectangular pipe jacking machine excavation face blind area breaker is used as claimed in claim 8, it is characterised in that
The method further includes：
Step b. first withdraws oil cylinder, then refuels again from oil inlet, makes oil cylinder and cross taper is broken ground device stretching；
If top power does not reduce or reduces unobvious, continue to keep the injection of high pressure water, and carry out repeating step
B until top power reduces and keeps relative stability, and is finally withdrawing oil cylinder, the injection for stopping high pressure water.
10. the breaking method of rectangular pipe jacking machine excavation face blind area breaker, feature are used as claimed in claim 8 or 9
It is that the method further includes：While crushing operation is carried out, if using several axial high pressure nozzles and trunk diameter
High pressure water washing is carried out to work surface and breaker to high pressure nozzle, be used to implement the cleaning to work surface and breaker and
Cooling work, and stock-removing efficiency is improved, while the soil body that softening has been abolished, realize the smooth exclusion for being cut the soil body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810264638.4A CN108266202A (en) | 2018-03-28 | 2018-03-28 | Rectangular pipe jacking machine excavation face blind area breaker and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810264638.4A CN108266202A (en) | 2018-03-28 | 2018-03-28 | Rectangular pipe jacking machine excavation face blind area breaker and its method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108266202A true CN108266202A (en) | 2018-07-10 |
Family
ID=62777451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810264638.4A Pending CN108266202A (en) | 2018-03-28 | 2018-03-28 | Rectangular pipe jacking machine excavation face blind area breaker and its method |
Country Status (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173272A (en) * | 2019-05-26 | 2019-08-27 | 中国建筑第六工程局有限公司 | The method of reseptance of subway station exit and entrance in rectangular pipe jacking machine construction operation |
| CN111720136A (en) * | 2020-06-29 | 2020-09-29 | 中国铁建重工集团股份有限公司 | Method for processing excavation blind area of rectangular pipe jacking machine |
| CN112647955A (en) * | 2020-12-04 | 2021-04-13 | 中铁工程装备集团有限公司 | Excavation blind area pretreatment method and tunnel driving construction method |
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| US5979573A (en) * | 1997-05-13 | 1999-11-09 | Ozzie's Pipeline Padder, Inc. | Horizontal boring apparatus |
| CN101158269A (en) * | 2007-11-01 | 2008-04-09 | 合肥工业大学 | Method for drilling roadbed small-caliber horizontal jacking pipe and drill bit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173272A (en) * | 2019-05-26 | 2019-08-27 | 中国建筑第六工程局有限公司 | The method of reseptance of subway station exit and entrance in rectangular pipe jacking machine construction operation |
| CN111720136A (en) * | 2020-06-29 | 2020-09-29 | 中国铁建重工集团股份有限公司 | Method for processing excavation blind area of rectangular pipe jacking machine |
| CN112647955A (en) * | 2020-12-04 | 2021-04-13 | 中铁工程装备集团有限公司 | Excavation blind area pretreatment method and tunnel driving construction method |
| CN112647955B (en) * | 2020-12-04 | 2021-12-03 | 中铁工程装备集团有限公司 | Excavation blind area pretreatment method and tunnel driving construction method |
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