CN104612703A - Anti-gushing device for sludge discharge of screw conveyor during earth pressure balancing type shield excavation - Google Patents
Anti-gushing device for sludge discharge of screw conveyor during earth pressure balancing type shield excavation Download PDFInfo
- Publication number
- CN104612703A CN104612703A CN201410854818.XA CN201410854818A CN104612703A CN 104612703 A CN104612703 A CN 104612703A CN 201410854818 A CN201410854818 A CN 201410854818A CN 104612703 A CN104612703 A CN 104612703A
- Authority
- CN
- China
- Prior art keywords
- bypass
- gate
- hydraulic control
- gushing
- earth pressure
- Prior art date
- 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.)
- Pending
Links
- 238000009412 basement excavation Methods 0.000 title abstract description 4
- 239000010802 sludge Substances 0.000 title abstract 5
- 239000004576 sand Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000002244 precipitate Substances 0.000 claims description 5
- 241000628997 Flos Species 0.000 claims description 4
- 238000007596 consolidation process Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 16
- 238000010276 construction Methods 0.000 abstract description 9
- 238000007599 discharging Methods 0.000 abstract description 9
- 230000005641 tunneling Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/124—Helical conveying means therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to an anti-gushing device for sludge discharge of a screw conveyor during earth pressure balancing type shield excavation. An anti-gushing bypass discharge outlet is additionally formed in one side of a sludge discharging gate above the screw conveyer, an opening adjustable type hydraulic control bypass gate is installed on the anti-gushing bypass discharge outlet, the other end of the bypass gate is connected with a bypass pipe, a hydraulic control discharging gate is connected to the end of the bypass pipe, and outlet discharge is adjusted through the hydraulic control discharging gate. Due to the fact that the bypass discharge outlet is additionally formed in one side of the sludge discharging gate of the screw conveyer, the hydraulic control bypass gate is installed, the other end of the bypass gate is connected with the bypass pipe, and a hydraulic control discharging plug board gate valve is installed at the tail end of the bypass pipe, when construction is conducted in a soil layer with high-flow-plasticity mud or quicksand type soil texture, gushing of mud or quicksand from the sludge discharging gate of the screw conveyer of an earth pressure balance shield tunneling machine under the action of head pressure can be prevented, and balance between earth pressure and excavated soil volume can be effectively controlled.
Description
Technical field
The present invention relates to a kind of earth pressure balance shield machine, the earth pressure balance shield machine of constructing in especially a kind of geology soil layer large in stream plasticity, during excavation operation, the device that the anti-stream of screw machine spoil disposal process (sand, soil) plasticity soil property is gushed.
Background technology
When shield driven tunnel crossing rivers great river, underground creek or undercurrent are constructed, the stronger Muddy Bottoms of stream plasticity or quicksand soil property and soil layer can be encountered, due to shield tunnel deposited buried comparatively dark (absolute altitude is generally in-15m underground), under head pressure effect, silt and shifting sand can spray from the screw machine spoil disposal sluice gate of balancing earth-pressure shielding machine, cause shield excavation machine cannot normal spoil disposal, inside and outside shield machine, soil pressure is unbalance, engineering construction will be obstructed, and the silt particle of outer spray makes periphery working environment worsen, bring very large difficulty to shield segment assembling etc., affect programming.
Summary of the invention
Object of the present invention be exactly in order to flow construct in the stronger Muddy Bottoms of plasticity or quicksand soil property and soil layer time, prevent under head pressure effect, silt and shifting sand is gushed from balancing earth-pressure shielding machine screw machine spoil disposal sluice gate, effective control soil pressure and the balance measure of being unearthed, and the anti-spouting device of screw machine spoil disposal when providing a kind of structure is simple, cost performance is high earth pressure balanced shield to tunnel.
In order to achieve the above object, the present invention adopts following technical scheme:
The anti-spouting device of screw machine spoil disposal during a kind of earth pressure balanced shield driving, comprise bypass gate, bypass pipe, strobe emission, be characterized in: the anti-bypass floss hole of gushing of side increase of spoil disposal gate 1 above screw machine, anti-bypass floss hole of gushing installs the bypass gate of the hydraulic control of adjustable openings size, bypass gate other end connecting bypass pipe, bypass pipe terminal is connected with the strobe emission of hydraulic control, regulates outlet discharge value by the strobe emission of hydraulic control.
Bypass pipe is equipped with preventing plug dredging device, the water inlet that the band pressure that preventing plug dredging device precipitates consolidation by one group of anti-sand washes away, air inlet pipeline system and vibrator form.
Bypass gate and strobe emission are flashboard gate valve.
The invention has the beneficial effects as follows:
The present invention is by separately offering a by-pass port in screw machine spoil disposal sluice gate side, install by the flashboard gate valve of hydraulic control, the gate valve other end connects drainage by-pass line, what bypass line was made by 90 ° of bridge pieces, compensator and expansion joint, flanged (FLGD) seamless steel pipe forms to bypass line etc. in length and breadth, and bypass pipe tail end separately installs the flashboard gate valve of a set of hydraulic control.Flow construct in the stronger Muddy Bottoms of plasticity or quicksand soil property and soil layer time, can prevent under head pressure effect, silt and shifting sand is gushed from balancing earth-pressure shielding machine screw machine spoil disposal sluice gate, and effectively can control soil pressure and the balance measured of being unearthed.
The species precipitate such as the quicksand that the bypass drainage pipe proportion of being discharged by screw machine is heavier cause the obstruction of pipeline, on it, the vibrating mechanism etc. dredged pipe-line system, pressure test tap with the pump pressure swelling mud of lubrication piping band nozzle, water or gas and be made up of electromagnetic shaker is washed away in design and installation, can ensure the normal construction of engineering.
Accompanying drawing explanation
Fig. 1 is the screw machine spoil disposal device assembly preventing gushing and mounting arrangements schematic diagram;
Fig. 2 is Fig. 1 left view;
Fig. 3 is anti-spouting device pipeline connection diagram;
Fig. 4 is the top view of Fig. 3.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figures 1 to 4, an anti-spouting device for screw machine spoil disposal during earth pressure balanced shield driving, comprises bypass mud discharging mouth and hydraulic control flashboard gate valve 1, longitudinal bypass line 2, spoil disposal screw machine 3, compensator and expansion joint 4, horizontal bypass line 5,90 ° of bypass bridge pieces 6, expansion joint and bypass line 8, vibrator 9, bypass pipe pressure measuring tie-in 10, mud (water) gas washes away nozzle 11, compensator 12 etc.
The anti-bypass mud discharging mouth of gushing of side increase of spoil disposal gate above screw machine, anti-bypass mud discharging mouth of gushing installs the bypass gate of the hydraulic control of adjustable openings size, the bypass gate other end connects the bypass pipe be made up of horizontal bypass line 5 and 90 ° of bypass bridge pieces 6, bypass pipe terminal is connected with the strobe emission of hydraulic control, regulates outlet discharge value by the strobe emission of hydraulic control.Bypass gate and strobe emission are flashboard gate valve 1.
Bypass pipe is equipped with preventing plug dredging device, the water inlet that the band pressure that preventing plug dredging device precipitates consolidation by one group of anti-sand washes away, air inlet pipeline system and vibrator 9 form.Vibrator 9 washes away nozzle 11, compensator 12 etc. by bypass pipe pressure measuring tie-in 10, mud (water) gas and forms.
" anti-spouting device " of the earth pressure balanced shield, EPBS screw machine spoil disposal sluice gate of specialized designs research and development of the present invention, special adaptation, is flowing normal construction in (sand, Muddy Bottoms) plasticity geology.Shield tunnel is deposited buried darker, conventional earth pressure balance shield machine is when flowing tunneling construction in (sand, Muddy Bottoms) plasticity geology, screw machine spoil disposal sluice gate is often because there is spray mud sandblasting phenomenon in head pressure effect, normal spoil disposal is obstructed, inside and outside shield machine, soil pressure is unbalance, construction tunnel pipe settlement management and control difficulty strengthens, and construction quality is difficult to control, and shield tunnel tunneling construction is by hard to carry on." anti-spouting device " is by separately offering a by-pass port in screw machine spoil disposal sluice gate side, install by the flashboard gate valve of hydraulic control, the gate valve other end connects drainage by-pass line, what bypass line was made by 90 ° of bridge pieces, compensator and expansion joint, flanged (FLGD) seamless steel pipe forms to bypass line etc. in length and breadth, and bypass pipe tail end separately installs the flashboard gate valve of a set of hydraulic control.
For the species precipitate such as the quicksand that the proportion preventing bypass drainage pipe from being discharged by screw machine is heavier cause the obstruction of pipeline, on it, design and installation washes away the vibrating mechanism etc. dredged pipe-line system, pressure test tap with the pump pressure swelling mud of lubrication piping band nozzle, water or gas and be made up of electromagnetic shaker, to ensure the normal construction of engineering.
Claims (3)
1. the anti-spouting device of screw machine spoil disposal when an earth pressure balanced shield tunnels, comprise bypass gate, bypass pipe, strobe emission, it is characterized in that: the anti-bypass floss hole of gushing of side increase of spoil disposal gate above screw machine, anti-bypass floss hole of gushing installs the bypass gate of the hydraulic control of adjustable openings size, bypass gate other end connecting bypass pipe, bypass pipe terminal is connected with the strobe emission of hydraulic control, regulates outlet discharge value by the strobe emission of hydraulic control.
2. the anti-spouting device of screw machine spoil disposal when earth pressure balanced shield according to claim 1 tunnels, it is characterized in that: described bypass pipe is equipped with preventing plug dredging device, the water inlet that the band pressure that preventing plug dredging device precipitates consolidation by one group of anti-sand washes away, air inlet pipeline system and vibrator form.
3. when earth pressure balanced shield according to claim 1 tunnels, the anti-spouting device of screw machine spoil disposal, is characterized in that: described bypass gate and strobe emission are flashboard gate valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410854818.XA CN104612703A (en) | 2014-12-29 | 2014-12-29 | Anti-gushing device for sludge discharge of screw conveyor during earth pressure balancing type shield excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410854818.XA CN104612703A (en) | 2014-12-29 | 2014-12-29 | Anti-gushing device for sludge discharge of screw conveyor during earth pressure balancing type shield excavation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104612703A true CN104612703A (en) | 2015-05-13 |
Family
ID=53147328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410854818.XA Pending CN104612703A (en) | 2014-12-29 | 2014-12-29 | Anti-gushing device for sludge discharge of screw conveyor during earth pressure balancing type shield excavation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104612703A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571327A (en) * | 2018-05-16 | 2018-09-25 | 华东交通大学 | Dregs quick compensator and its working method in a kind of shield machine soil cabin |
| CN109723456A (en) * | 2019-03-18 | 2019-05-07 | 中铁六局集团有限公司 | Balancing earth-pressure shielding machine screw conveyer blowout prevention gushes device |
| CN110005424A (en) * | 2019-04-22 | 2019-07-12 | 中建三局基础设施建设投资有限公司 | It is a kind of for weakening the device and its application method that shield screw machine is gushed |
| CN113250712A (en) * | 2021-06-17 | 2021-08-13 | 北京市政建设集团有限责任公司 | A novel screw machine prevents spouting structure for shield constructs construction |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007092365A (en) * | 2005-09-28 | 2007-04-12 | Nishimatsu Constr Co Ltd | Shield excavator |
| CN102562080A (en) * | 2012-02-15 | 2012-07-11 | 中铁隧道股份有限公司 | Method and system for dredging clogged slurry door by reverse circulation of slurry shield |
| WO2014060234A2 (en) * | 2012-10-19 | 2014-04-24 | Herrenknecht Aktiengesellschaft | Method and device for transporting overburden away during tunnelling |
| CN204002831U (en) * | 2014-08-06 | 2014-12-10 | 宏润建设集团股份有限公司 | A kind of screw machine blowout prevention structure |
-
2014
- 2014-12-29 CN CN201410854818.XA patent/CN104612703A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007092365A (en) * | 2005-09-28 | 2007-04-12 | Nishimatsu Constr Co Ltd | Shield excavator |
| CN102562080A (en) * | 2012-02-15 | 2012-07-11 | 中铁隧道股份有限公司 | Method and system for dredging clogged slurry door by reverse circulation of slurry shield |
| WO2014060234A2 (en) * | 2012-10-19 | 2014-04-24 | Herrenknecht Aktiengesellschaft | Method and device for transporting overburden away during tunnelling |
| CN204002831U (en) * | 2014-08-06 | 2014-12-10 | 宏润建设集团股份有限公司 | A kind of screw machine blowout prevention structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571327A (en) * | 2018-05-16 | 2018-09-25 | 华东交通大学 | Dregs quick compensator and its working method in a kind of shield machine soil cabin |
| CN108571327B (en) * | 2018-05-16 | 2023-11-17 | 华东交通大学 | Rapid compensation device for dregs in shield machine soil cabin and working method thereof |
| CN109723456A (en) * | 2019-03-18 | 2019-05-07 | 中铁六局集团有限公司 | Balancing earth-pressure shielding machine screw conveyer blowout prevention gushes device |
| CN110005424A (en) * | 2019-04-22 | 2019-07-12 | 中建三局基础设施建设投资有限公司 | It is a kind of for weakening the device and its application method that shield screw machine is gushed |
| CN113250712A (en) * | 2021-06-17 | 2021-08-13 | 北京市政建设集团有限责任公司 | A novel screw machine prevents spouting structure for shield constructs construction |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150513 |
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| RJ01 | Rejection of invention patent application after publication |