CN1730907A - Combined balance shield machine - Google Patents
Combined balance shield machine Download PDFInfo
- Publication number
- CN1730907A CN1730907A CN 200510028862 CN200510028862A CN1730907A CN 1730907 A CN1730907 A CN 1730907A CN 200510028862 CN200510028862 CN 200510028862 CN 200510028862 A CN200510028862 A CN 200510028862A CN 1730907 A CN1730907 A CN 1730907A
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- shield machine
- shield
- oil cylinder
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- combined balance
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Abstract
The composite balanced tunnel shield machine includes machine shell, capstan in the front of the machine shell, earth bin on the back of the capstan, screw conveyer for conveying cut earth and driving oil cylinders distributed homogeneously around the machine shell. It features the capstan with both tearing tools and cutting tools; the earth bin with several slurry injecting holes in the back wall; and pneumatic balancer installed in the back part of the earth bin. The screw conveyer is provided with two gates including the first hydraulic gate and the second manual gate; and 26 driving oil cylinders are distributed homogeneously around the machine shell. There are in the shield machine tail three tail sealing steel wire brushes with tail grease in between and the last brush capable of being replaced. Or, the shield machine tail may be water stopping sealed with polyurethane or other material and the last brush may replaced with type-Y sealing rubber brush for stopping water.
Description
Technical field
The present invention relates to a kind of shield machine, refer in particular to a kind of combined balance shield machine.
Background technology
When adopting the shield driving mode to construct, generally will consider geological condition, the external diameter of shield structure, the length in tunnel, engineering construction program, labour's situation etc. are carried out type selecting to shield machine.Select the shield machine type according to geological conditions,, should use the shield-tunneling construction of closed type as far as possible, if underground water then should be paid the utmost attention to the slurry balance shield machine than enriching and water permeability sand soil preferably the stratum that chiltern great soil group independence can differ from; To cohesive soil, then can at first consider balancing earth-pressure shielding machine.But at transmission coefficient greater than 10
-2The ovum of cm/s, layer of gravel or when running into big obstruction slurry balance shield machine and balancing earth-pressure shielding machine all not too suitable.
Summary of the invention
The purpose of this invention is to provide a kind of its and be suitable for the combined balance shield machine of high infiltration soil layer driving, also be applicable to simultaneously and remove big obstruction.
For reaching above-mentioned purpose, technical program of the present invention lies in providing a kind of combined balance shield machine, comprise the shield machine shell, the cutterhead of casing front portion, the Tu Cang at cutterhead rear portion, be used to carry the conveying worm of cutting soil and be distributed on propelling oil cylinder around the shield structure housing, it is characterized in that: be provided with simultaneously on the cutterhead and tear cutter and bite, wherein the knife edge of bite is slightly by tearing after the cutter; The rear surface of Tu Cang is provided with a plurality of injected holes; And air pressure balance equipment is installed at the Tu Cang rear portion.
The bottom of above-mentioned Tu Cang is a soil outlet, and the bottom of conveying worm is arranged in soil outlet.Conveying worm is provided with the twice gate, and first road is a hydraulically operated gate, and second road is a hand door.
Above-mentioned air pressure balance equipment is communicated with air inlet port and gas outlet on the panel of native storehouse.
The panel of above-mentioned Tu Cang is provided with People's Bank of China's lock and enters the processing of excavation face for operating personnel.
Uniform propelling oil cylinder has arranged altogether that along shield structure housing circumference 26 advance oil cylinders around the above-mentioned shield structure housing, advances oil cylinder that two kinds of strokes are arranged, top 7 director's strokes advance oil cylinder, its stroke is 2000mm, and 19 of bottoms are short stroke propelling oil cylinder, and its stroke is 1150mm.Every advances the thrust of oil cylinder is 1200kN.
The shield tail of above-mentioned combined balance shield machine is provided with three road steel wire shield tail sealing brushes, wherein can remove replacing together at last, is filled with shield tail oil fat between three road wire brushes.
According to another embodiment, after materials such as shield tail employing polyamine fat carried out the sealing sealing, the last one replaceable one-tenth of shield tail wire brush Y type rubber seal brush reached stagnant water effect.
According to technique scheme, the present invention has following beneficial effect:
1, shield machine has increased in the design of cutterhead and has torn cutter.When running into hard formation, with tearing the earlier broken shiver stone of cutter, so just can protect bite not to be damaged, thereby make bite in other soil layers, bring into play effective function earlier.
2, before shield machine, arrange several injected holes, make the shield structure in passing through the soil layer that boulder bed and transmission coefficient are 10-1cm/s, be injected in the soil layer of front with dense mud or cement paste, improve the stream plasticity energy of land pebble in the soil layer on the one hand, make it to discharge from conveying worm effectively, make the shield structure when passing through this soil layer, make the development end soil body keep stable on the other hand.
3, the twice gate is set on the conveying worm, if break down when shield structure one gate when passing through the high soil layer of moisture content, but standby gate trouble free service.
4, air pressure balance equipment has been installed simultaneously on this balancing earth-pressure shielding machine, bulk footpath piece stone that can not be broken in running into the stratum can be by artificial treatment.
5, when designing, adopted on the shield tail three road steel wire shield tails sealing brush, and can change together in the inner part.When under the above head high difference pressure of 20m when driving wire brush sealing is unfavorable as the shield tail, at this moment, can adopt material such as polyamine fat to carry out the sealing sealing at the shield tail after, the 3rd road shield tail wire brush changes the rubber seal of Y type into and brushes and reach stagnant water effect.
Description of drawings
Fig. 1 is the generalized section of combined balance shield machine of the present invention.
Fig. 2 is that the A of Fig. 1 is to view.
Fig. 3 is Fig. 1's " B-B " sectional drawing.
Fig. 4 is Fig. 1's " C-C " sectional drawing.
Fig. 5 is that the D of Fig. 1 is to sectional drawing.
The specific embodiment
As shown in Figure 1, 2, combined balance shield machine of the present invention comprises a shield structure housing 1, and shield structure housing 1 front end is a cutterhead 2.Be provided with simultaneously on cutterhead 2 and tear cutter 21 and bite 22, wherein the knife edge of bite 22 is slightly by tearing after the cutter 21.Tear cutter 21 and be primarily aimed at not rachill,, roll, come broken than lump stone by extruding and self as weathering tuff not.Run into the weak soil layer, it is ineffective to tear cutter 21, and rely on bite 22 this moment, under the rotation of cutterhead 2, and the cutting weak soil.Actual shield driving process is the combination of these two kinds of cuttves.
Referring to Fig. 1 and Fig. 3, cutterhead 2 rear portions are native storehouse 3, and 3 bottoms, native storehouse are provided with soil outlet 31, and the soil that cutterhead 2 cuts enters in the native storehouse 3.The bottom of conveying worm 4 is arranged in soil outlet 31, is used for the soil in the native storehouse 3 is transported to belt conveyer 7, is transported on the waste truck then.The rear surface in native storehouse 3 is provided with a plurality of injected holes 32, is used for injecting dense mud or the cement paste soil layer to the front.
When the shield structure enters pan soil, because of the soil layer independence is good, native storehouse 3 does not have the pressure existence to reduce the moment of torsion of cutterhead 2.Be to be unearthed smoothly this moment, can suitably add a certain amount of sticky soil in native storehouse 3 by injected hole 32, makes hard rock soil easily serve belt conveyer 5 by conveying worm 4 and be unearthed.Enter weak soil and work as the shield structure, when comprising layer of sand soil, shield structure Tu Cang need have certain pressure, can artificially set, and comes balance front soil body earth pressue at rest to reach earth pressure balance, and the weak soil layer is unearthed to helical conveyor 4 under certain pressure in the native storehouse at this moment.For prevent that full section layer of sand from erupting to screw machine 4 soil outlets 31 under certain pressure, also need pressure injection certain amount of clay in native storehouse 31, keep native storehouse clay to reach more than 10%, produce the soil plug, prevent the eruption accident.
Referring to Fig. 1 and Fig. 6, the twice gate is set on the conveying worm 4, wherein last road gate is a hydraulically operated gate 41, one gate in back is hand door 42.If one gate breaks down when the shield structure passes through the high soil layer of moisture content, but standby gate trouble free service.
Referring to Fig. 3 and Fig. 5,3 rear portions, native storehouse are equipped with air pressure balance equipment 5, and this air pressure balance equipment 5 is communicated with air inlet port 51 and gas outlet 52 on the panel of native storehouse.Cooperate on-the-spot air compressor machine in the construction, give Tu Cang certain pressure.Actual conditions according to driving are regulated air pressure, if air pressure is too low, do not have the effect of equilibrium water pressure, and air pressure is too high, then might puncture covering layer.
In one embodiment, for reducing the cutterhead moment of torsion, prevent positive landslide and screw machine sandblast, atmospheric pressure generally is controlled at about 0.3Mpa (considers the loss of groundwater table and native storehouse internal gas pressure), before driving, ventilation earlier was good in about 30 minutes to 1 hour, water forced beyond the soil body of front, and then jacking.During driving, should add air pressure earlier, be unearthed in the back.Soil in the screw machine can not clearancen, otherwise gas can spill from screw machine, and atmospheric pressure is just inoperative.
The panel in native storehouse 3 is provided with People's Bank of China's lock, and when the excavation face had unknown obstruction (as basis, stake etc.) or fortuitous event occurs, operating personnel can enter the excavation face and handle.
As Fig. 1 and shown in Figure 4, uniform propelling oil cylinder 6 around shield structure housing 1, and the support boots 61 that oil cylinder external part head is installed can be delivered to propulsive force on the section of jurisdiction (not label) equably, guarantee that shield structure balance advances.According to one embodiment of present invention, arranged altogether that along shield structure circumference 26 advance oil cylinder 6, every advances the thrust of oil cylinder 6 is 1200kN, and shield structure gross thrust is 312000kN, and this is the power of shield structure forward impelling.For adapting to last piece complete vertically needs of plug-in type section of jurisdiction of piece that bind, advance oil cylinder 6 that two kinds of strokes are arranged, top 7 director's strokes advance oil cylinder 6, and its stroke is 2000mm, and 19 of bottoms are short stroke propelling oil cylinder 6, and its stroke is 1150mm.
The shield tail is provided with three road steel wire shield tail sealing brushes 8, wherein can remove replacing together at last.Between three road wire brushes, be filled with shield tail oil fat, so that reach stifled mud purpose.In shield structure progradation, utilize shield tail grease pump (not shown) constantly to replenish shield tail oil fat and guarantee the reliability of shield tail sealing.
In another embodiment, when tunneling under the above head high difference pressure of 20m, sealing is unfavorable to wire brush as the shield tail, at this moment, after can adopting material such as polyamine fat to carry out the sealing sealing at the shield tail, the 3rd road shield tail wire brush changes the rubber seal of Y type into and brushes and reach stagnant water effect.
Claims (10)
1. combined balance shield machine, comprise shield machine shell (1), the cutterhead (2) that casing (1) is anterior, the Tu Cang (3) at cutterhead (2) rear portion, be used to carry the conveying worm (4) of cutting soil and be distributed on shield structure housing (1) propelling oil cylinder (6) all around, it is characterized in that: be provided with simultaneously on the cutterhead (2) and tear cutter (21) and bite (22), wherein the knife edge of bite (22) is slightly by tearing cutter (21) afterwards; The rear surface of Tu Cang (3) is provided with a plurality of injected holes (32); And air pressure balance equipment (5) is installed at Tu Cang (3) rear portion.
2. combined balance shield machine as claimed in claim 1 is characterized in that, the bottom of Tu Cang (3) is soil outlet (31), and the bottom of conveying worm (4) is arranged in soil outlet (31).
3. combined balance shield machine as claimed in claim 1 is characterized in that, conveying worm (4) is provided with the twice gate, and first road is hydraulically operated gate (41), and second road is hand door (42).
4. combined balance shield machine as claimed in claim 1 is characterized in that, this air pressure balance equipment (5) is communicated with air inlet port (51) and gas outlet (52) on the panel of native storehouse.
5. combined balance shield machine as claimed in claim 1 is characterized in that, the panel of Tu Cang (3) is provided with People's Bank of China's lock and enters the processing of excavation face for operating personnel.
6. combined balance shield machine as claimed in claim 1 is characterized in that, shield structure housing (1) uniform all around propelling oil cylinder (6).
7. combined balance shield machine as claimed in claim 6, it is characterized in that, arranged altogether that along shield structure circumference 26 advance oil cylinder (6), advance oil cylinder (6) that two kinds of strokes are arranged, top 7 director's strokes advance oil cylinder (6), its stroke is 2000mm, and 19 of bottoms are short stroke propelling oil cylinder (6), and its stroke is 1150mm.
8. combined balance shield machine as claimed in claim 7 is characterized in that, every advances the thrust of oil cylinder (6) is 1200kN.
9. combined balance shield machine as claimed in claim 1 is characterized in that, the shield tail is provided with three road steel wire shield tail sealing brushes (8), wherein can remove replacing together at last, is filled with shield tail oil fat between three road wire brushes.
10. combined balance shield machine as claimed in claim 9 is characterized in that, after materials such as shield tail employing polyamine fat carried out the sealing sealing, the last one replaceable one-tenth of shield tail wire brush Y type rubber seal brush reached stagnant water effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510028862 CN100519989C (en) | 2005-08-17 | 2005-08-17 | Combined balance shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510028862 CN100519989C (en) | 2005-08-17 | 2005-08-17 | Combined balance shield machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1730907A true CN1730907A (en) | 2006-02-08 |
| CN100519989C CN100519989C (en) | 2009-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510028862 Active CN100519989C (en) | 2005-08-17 | 2005-08-17 | Combined balance shield machine |
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| CN (1) | CN100519989C (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285387B (en) * | 2008-05-22 | 2010-06-16 | 清华大学 | Propelling plant for earth pressure balancing shield |
| CN101824988A (en) * | 2010-04-13 | 2010-09-08 | 唐兆连 | Shield machine |
| CN102200014A (en) * | 2010-03-23 | 2011-09-28 | 同济大学 | Earth pressure balance type annular shield machine |
| CN102410027A (en) * | 2011-10-19 | 2012-04-11 | 中铁隧道装备制造有限公司 | Novel dual-mode TBM (tunnel boring machine) and control method thereof |
| CN101749027B (en) * | 2010-01-13 | 2012-04-18 | 天津大学 | Multi-adaptive cutter head for shield machine |
| CN102639813A (en) * | 2010-01-29 | 2012-08-15 | 日立造船株式会社 | Bit-replacing device for excavator |
| CN102086767B (en) * | 2009-12-07 | 2012-12-05 | 同济大学 | Mud water balanced-type ring-shaped shield machine |
| CN103025999A (en) * | 2010-05-26 | 2013-04-03 | 株木建设株式会社 | Tunnel excavation apparatus and tunnel excavation method |
| CN103527203A (en) * | 2013-10-28 | 2014-01-22 | 镇江安达煤矿专用设备有限公司 | Water spray cutter head of tube push bench |
| CN105114698A (en) * | 2015-09-08 | 2015-12-02 | 广东省建筑工程集团有限公司 | River opposite jacking butt joint construction process and specially-produced head |
| CN105134238A (en) * | 2015-10-10 | 2015-12-09 | 中铁十四局集团有限公司 | Handpiece-detachable pipe jacking machine applied to pipe screen construction |
| CN105443138A (en) * | 2015-12-28 | 2016-03-30 | 中铁工程装备集团有限公司 | Small-diameter hard rock pipe-jacking machine suitable for complex strata |
| CN105697027A (en) * | 2015-12-08 | 2016-06-22 | 中国铁建大桥工程局集团有限公司 | Multi-balance comprehensive tube push bench for water-rich sand and gravel stratum |
| CN105908766A (en) * | 2016-05-03 | 2016-08-31 | 上海市基础工程集团有限公司 | Mud discharge bin device of spiral mud excavator |
| CN108506012A (en) * | 2018-03-21 | 2018-09-07 | 中国五冶集团有限公司 | It is a kind of to return the pipe jacking shield machine head device for starching efficiency convenient for improving |
| CN115929333A (en) * | 2022-12-20 | 2023-04-07 | 盾科工程装备有限公司 | Spiral unearthed shield machine |
-
2005
- 2005-08-17 CN CN 200510028862 patent/CN100519989C/en active Active
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285387B (en) * | 2008-05-22 | 2010-06-16 | 清华大学 | Propelling plant for earth pressure balancing shield |
| CN102086767B (en) * | 2009-12-07 | 2012-12-05 | 同济大学 | Mud water balanced-type ring-shaped shield machine |
| CN101749027B (en) * | 2010-01-13 | 2012-04-18 | 天津大学 | Multi-adaptive cutter head for shield machine |
| CN102639813B (en) * | 2010-01-29 | 2014-05-21 | 日立造船株式会社 | Bit-replacing device for excavator |
| CN102639813A (en) * | 2010-01-29 | 2012-08-15 | 日立造船株式会社 | Bit-replacing device for excavator |
| CN102200014A (en) * | 2010-03-23 | 2011-09-28 | 同济大学 | Earth pressure balance type annular shield machine |
| CN101824988A (en) * | 2010-04-13 | 2010-09-08 | 唐兆连 | Shield machine |
| CN101824988B (en) * | 2010-04-13 | 2012-08-15 | 唐兆连 | Shield machine |
| US8814472B2 (en) | 2010-05-26 | 2014-08-26 | Kabuki Construction Co., Ltd. | Tunnel excavation apparatus and tunnel excavation method |
| CN103025999A (en) * | 2010-05-26 | 2013-04-03 | 株木建设株式会社 | Tunnel excavation apparatus and tunnel excavation method |
| CN103025999B (en) * | 2010-05-26 | 2015-01-21 | 株木建设株式会社 | Tunnel excavation apparatus and tunnel excavation method |
| CN102410027B (en) * | 2011-10-19 | 2013-10-30 | 中铁隧道装备制造有限公司 | Dual-mode TBM (tunnel boring machine) and control method thereof |
| CN102410027A (en) * | 2011-10-19 | 2012-04-11 | 中铁隧道装备制造有限公司 | Novel dual-mode TBM (tunnel boring machine) and control method thereof |
| CN103527203A (en) * | 2013-10-28 | 2014-01-22 | 镇江安达煤矿专用设备有限公司 | Water spray cutter head of tube push bench |
| CN105114698A (en) * | 2015-09-08 | 2015-12-02 | 广东省建筑工程集团有限公司 | River opposite jacking butt joint construction process and specially-produced head |
| CN105134238A (en) * | 2015-10-10 | 2015-12-09 | 中铁十四局集团有限公司 | Handpiece-detachable pipe jacking machine applied to pipe screen construction |
| CN105134238B (en) * | 2015-10-10 | 2018-04-17 | 中铁十四局集团有限公司 | A kind of head applied to the construction of pipe curtain can withdraw formula push-bench |
| CN105697027A (en) * | 2015-12-08 | 2016-06-22 | 中国铁建大桥工程局集团有限公司 | Multi-balance comprehensive tube push bench for water-rich sand and gravel stratum |
| CN105443138A (en) * | 2015-12-28 | 2016-03-30 | 中铁工程装备集团有限公司 | Small-diameter hard rock pipe-jacking machine suitable for complex strata |
| CN105908766A (en) * | 2016-05-03 | 2016-08-31 | 上海市基础工程集团有限公司 | Mud discharge bin device of spiral mud excavator |
| CN105908766B (en) * | 2016-05-03 | 2018-01-02 | 上海市基础工程集团有限公司 | The mud extraction bin device of spiral bagger |
| CN108506012A (en) * | 2018-03-21 | 2018-09-07 | 中国五冶集团有限公司 | It is a kind of to return the pipe jacking shield machine head device for starching efficiency convenient for improving |
| CN108506012B (en) * | 2018-03-21 | 2023-08-08 | 中国五冶集团有限公司 | Push pipe shield machine head device convenient to improve slurry return efficiency |
| CN115929333A (en) * | 2022-12-20 | 2023-04-07 | 盾科工程装备有限公司 | Spiral unearthed shield machine |
Also Published As
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| CN100519989C (en) | 2009-07-29 |
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Owner name: SHANGHAI FOUNDATION ENGINEERING GROUP CO., LTD. Free format text: FORMER NAME: FOUNDATION ENGINEERING CO. OF SHANGHAI CITY |
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Address after: 200002, room 406, 522 middle Jiangxi Road, Shanghai, Huangpu District Patentee after: Shanghai Foundation Engineering Group Co., Ltd. Address before: 200002, room 406, 522 middle Jiangxi Road, Shanghai, Huangpu District Patentee before: Foundation Engineering Co. of Shanghai City |