CN101191417A - Bentonite mud water pressurization equilibration shield machine - Google Patents
Bentonite mud water pressurization equilibration shield machine Download PDFInfo
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- CN101191417A CN101191417A CNA2007101590985A CN200710159098A CN101191417A CN 101191417 A CN101191417 A CN 101191417A CN A2007101590985 A CNA2007101590985 A CN A2007101590985A CN 200710159098 A CN200710159098 A CN 200710159098A CN 101191417 A CN101191417 A CN 101191417A
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Abstract
The invention provides a bentonite slurry compression balance shield machine which is applied to the tunneling construction machinery industry and has four operational modes of cut mode, bypass mode, isolation mode and reversion mode; the operating principle of the invention is that a sealed cabin of an anterior shield mounting baffle plate is injected with the pressured bentonite slurry which is the prepared bentonite-water mixture, forming a pressured slurry cabin, the stable cut surface is realized by the compression system and the pressure-maintaining system; the injected pressured bentonite slurry can be penetrated into the stratum with the depth of a plurality of centimeters and embedded into clearances between soil particles, forming a layer of 'slurry film' which can make the stratum relative stable and water seepage resistant and capable of firmly supporting the soil in front side; when the soil is cut by the cutter head, the cut soil enters the slurry cabin through holes in the cutter head and is mixed with the feeding bentonite slurry to form the high density slurry which is closed in the slurry cabin and conveyed to grounded treatment factories by the deslagging pump. The invention causes little disturbance and sedimentation to the stratum, thereby the invention has wide application range of soil quality and is applied to tunnel constructions in places with high ground water pressure such as river bottom, stream bottom and sea bottom.
Description
Technical field:
The present invention relates to utilize bentonite slurry to support a kind of bentonite mud water pressurization equilibration shield machine of firm tunnel tunnel face as fluid media (medium) in the tunnel construction machinery industry, be used for when the tunnel piercing requirement is strict to the Interference Control on stratum, such as the situation of carrying out under the extremely responsive building such as depression and protuberance.
Background technology:
At present, when running into the caving grounds such as alluvium, layer of sand, flour sand layer of independence difference in the tunnel construction machinery industry in the shield-tunneling construction, or under the bigger situation of hydrostatic pressure, common shield structure must be aided with calm the anger, measures such as precipitation, grouting and reinforcing, stable to guarantee digging face.But the air pressure of calming the anger is crossed the health that conference threatens operating personnel; Precipitation can make well exhaustion on every side, building settlement; When injecting the organic slurry strengthening stratum, can polluted underground water.Bentonite mud water pressurization equilibration shield machine can overcome above-mentioned drawback, relies on the bentonite slurry that injects suitable pressure that the water and soil pressure on the excavation face is brought into play balanced action in the hope of stable.Therefore be widely used in when tunnel piercing, the stratum being disturbed the situation of the civil building bottom of (for example depression and protuberance etc.) extreme sensitivity.Therefore developing a kind of bentonite mud water pressurization equilibration shield machine is the new problem of being badly in need of solution.
Summary of the invention:
The purpose of this invention is to provide that a kind of disturbance to the stratum is little, sedimentation is little, be applicable to hydraulic pressure under the highland, at the bottom of the river, river bed, seabed tunnel construction, the bentonite mud water pressurization equilibration shield machine that soil property is applied widely.
The object of the present invention is achieved like this: bentonite mud water pressurization equilibration shield machine, excavation pattern, bypass mode, isolated pattern, four kinds of operational modes of reverse pattern are arranged, its operating principle is, bentonite mud water pressurization equilibration shield machine is by injecting the bentonite slurry of band pressure in the sealed compartment that dividing plate is installed at anterior shield, swell soil that promptly prepares and aqueous mixtures, formation has the muddy water storehouse of pressure, by pressurization and pressure-retaining system, seeks the stable of the face that excavates; It is dark to inject some centimetres on bentonite slurry energy injection with pressure stratum, is embedded in the slit between soil particle, forms one deck " mud film "; This layer " mud film " makes soil layer become stable and does not seep water, and can support the firm front soil body; When the knife cutting soil body, the soil body that cuts enters the muddy water storehouse by the aperture on the cutterhead, and mixes back formation high-density slurry with the bentonite slurry of input, the muddy water storehouse of sealing is transported to floor treatment factory keeping under the certain pressure condition by deslagging pump; P1 is a grouting pump, stands from the bentonite slurry preparation on ground and the mud of certain pressure is imported the muddy water storehouse of shield machine, mixes the back in the muddy water storehouse with the silt particle of excavation and is gone out by deslagging pump P2 pumping, and the effect of P3 pump is a separation plant of the fluid of deslagging being delivered to ground; Separation plant is handled the dregs of excavation, and it is reusable that isolated water is drunk swell soil, and isolated body refuse then is transported to waste factory; The excavation pattern is to use the rotating speed realization muddy water storehouse pressure control of adjustment P1.1 pump when this pattern is used for the shield machine excavation; Adjust the rotating speed of P2 pump, reach the value of desired deslagging pattern in order to proofread and correct the deslagging flow, the rotating speed of P3 pump must be able to guarantee that the fluid of deslagging can be pumped into the separation plant on ground; Bypass mode is, this pattern is a standby mode, is used for carrying out other function when shield machine does not excavate, also be used for when shield machine when a kind of function switches to another kind of function; Particularly, bypass function is the situation that is used for mounting pipe sheet built ring; Under bypass mode, the excavation chamber is isolated, and each slush pump all keeps rotation according to the overburden pressure of pump and the deslagging flow of requirement; Isolated pattern is, this pattern makes hydraulic fill pipeline system and the ground system in the tunnel be in isolated fully state, but is located at the separation plant on ground this moment and the loop between the preparation factory still keeps being communicated with; Situation when particularly, this pattern is used for tunnel hydraulic fill pipeline extension; Each deslagging pump P2.1, P3 all shuts down; And P1.1 still keeps operation, to keep the circulation in loop between preparation factory and the separation plant; The reverse pattern is that this pattern makes the mud reverse flow in the excavation chamber, only is used for some special situations, is particularly excavating indoor the obstruction, or is used to clear up the Residue extraction pipeline on the shield machine.
Main points of the present invention are its operating principle and operational mode.Its operating principle is, bentonite mud water pressurization equilibration shield machine is that swell soil that promptly prepares and aqueous mixtures form the muddy water storehouse with pressure by the bentonite slurry of injection band pressure in the sealed compartment that dividing plate is installed at anterior shield, by pressurization and pressure-retaining system, seek the stable of the face that excavates; It is dark to inject some centimetres on bentonite slurry energy injection with pressure stratum, is embedded in the slit between soil particle, forms one deck " mud film "; This layer " mud film " makes soil layer become stable and does not seep water, and can support the firm front soil body; When the knife cutting soil body, the soil body that cuts enters the muddy water storehouse by the aperture on the cutterhead, and mixes back formation high-density slurry with the bentonite slurry of input, the muddy water storehouse of sealing is transported to floor treatment factory keeping under the certain pressure condition by deslagging pump; P1 is a grouting pump, stands from the bentonite slurry preparation on ground and the mud of certain pressure is imported the muddy water storehouse of shield machine, mixes the back in the muddy water storehouse with the silt particle of excavation and is gone out by deslagging pump P2 pumping, and the effect of P3 pump is a separation plant of the fluid of deslagging being delivered to ground; Separation plant is handled the dregs of excavation, and isolated water and swell soil are reusable, and isolated body refuse then is transported to waste factory.
Bentonite mud water pressurization equilibration shield machine compared with prior art, have little to the disturbance on stratum, sedimentation is little, is applicable to hydraulic pressure under the highland, at the bottom of the river, the construction of river bed, seabed tunnel, advantages such as soil property is applied widely will be widely used in the tunnel construction machinery industry.
Description of drawings:
The present invention is described in detail below in conjunction with drawings and Examples.
Fig. 1 is a general arrangement of the present invention.
Fig. 2 is the fundamental diagram of system when being in the excavation pattern of the present invention.
Fig. 3 is the fundamental diagram of system when being in bypass mode of the present invention.
Fig. 4 is the fundamental diagram that is in system when completely cutting off pattern of the present invention.
Fig. 5 is the fundamental diagram of system when being in the reverse pattern of the present invention.
The specific embodiment:
With reference to accompanying drawing, bentonite mud water pressurization equilibration shield machine, excavation pattern, bypass mode, isolated pattern, four kinds of operational modes of reverse pattern are arranged, its operating principle is, bentonite mud water pressurization equilibration shield machine is that swell soil that promptly prepares and aqueous mixtures form the muddy water storehouse with pressure by the bentonite slurry of injection band pressure in the sealed compartment that dividing plate is installed at anterior shield, by pressurization and pressure-retaining system, seek the stable of the face that excavates; It is can some centimetres on injection stratum dark to inject in the swelling with pressure mud, is embedded in the slit between soil particle, forms one deck " mud film "; This layer " mud film " makes soil layer become stable and does not seep water, and can support the firm front soil body; When the knife cutting soil body, the soil body that cuts enters the muddy water storehouse by the aperture on the cutterhead, and mixes back formation high-density slurry with the bentonite slurry of input, the muddy water storehouse of sealing is transported to floor treatment factory keeping under the certain pressure condition by deslagging pump; P1 is a grouting pump, stands from the bentonite slurry preparation on ground and the mud of certain pressure is imported the muddy water storehouse of shield machine, mixes the back in the muddy water storehouse with the silt particle of excavation and is gone out by deslagging pump P2 pumping, and the effect of P3 pump is a separation plant of the fluid of deslagging being delivered to ground; Separation plant is handled the dregs of excavation, and it is reusable that isolated water is drunk swell soil, and isolated body refuse then is transported to waste factory; The excavation pattern is to use the rotating speed realization muddy water storehouse pressure control of adjustment P1.1 pump when this pattern is used for the shield machine excavation; Adjust the rotating speed of P2 pump, reach the value of desired deslagging pattern in order to proofread and correct the deslagging flow, the rotating speed of P3 pump must be able to guarantee that the fluid of deslagging can be pumped into the separation plant on ground; Bypass mode is, this pattern is a standby mode, is used for carrying out other function when shield machine does not excavate, also be used for when shield machine when a kind of function switches to another kind of function; Particularly, bypass function is the situation that is used for mounting pipe sheet built ring; Under bypass mode, the excavation chamber is isolated, and each slush pump all keeps rotation according to the overburden pressure of pump and the deslagging flow of requirement; Isolated pattern is, this pattern makes hydraulic fill pipeline system and the ground system in the tunnel be in isolated fully state, but is located at the separation plant on ground this moment and the loop between the preparation factory still keeps being communicated with; Situation when particularly, this pattern is used for tunnel hydraulic fill pipeline extension; (P2.1's each deslagging pump P3) all shuts down; And P1.1 still keeps operation, to keep the circulation in loop between preparation factory and the separation plant; The reverse pattern is that this pattern makes the mud reverse flow in the excavation chamber, only is used for some special situations, is particularly excavating indoor the obstruction, or is used to clear up the Residue extraction pipeline on the shield machine.
Claims (5)
1. bentonite mud water pressurization equilibration shield machine, excavation pattern, bypass mode, isolated pattern, four kinds of operational modes of reverse pattern are arranged, it is characterized in that: its operating principle is, bentonite mud water pressurization equilibration shield machine is by injecting the bentonite slurry of band pressure in the sealed compartment that dividing plate is installed at anterior shield, swell soil that promptly prepares and aqueous mixtures, formation has the muddy water storehouse of pressure, by pressurization and pressure-retaining system, seeks the stable of the face that excavates; It is dark to inject some centimetres on bentonite slurry energy injection with pressure stratum, is embedded in the slit between soil particle, forms one deck " mud film "; This layer " mud film " makes soil layer become stable and does not seep water, and can support the firm front soil body; When the knife cutting soil body, the soil body that cuts enters the muddy water storehouse by the aperture on the cutterhead, and mixes back formation high-density slurry with the bentonite slurry of input, the muddy water storehouse of sealing is transported to floor treatment factory keeping under the certain pressure condition by deslagging pump; P1 is a grouting pump, stands from the bentonite slurry preparation on ground and the mud of certain pressure is imported the muddy water storehouse of shield machine, mixes the back in the muddy water storehouse with the silt particle of excavation and is gone out by deslagging pump P2 pumping, and the effect of P3 pump is a separation plant of the fluid of deslagging being delivered to ground; Separation plant is handled the dregs of excavation, and it is reusable that isolated water is drunk swell soil, and isolated body refuse then is transported to waste factory.
2. bentonite mud water pressurization equilibration shield machine according to claim 1 is characterized in that: said excavation pattern is to use the rotating speed realization muddy water storehouse pressure control of adjustment P1.1 pump when this pattern is used for the shield machine excavation; Adjust the rotating speed of P2 pump, reach the value of desired deslagging pattern in order to proofread and correct the deslagging flow, the rotating speed of P3 pump must be able to guarantee that the fluid of deslagging can be pumped into the separation plant on ground.
3. bentonite mud water pressurization equilibration shield machine according to claim 1, it is characterized in that: said bypass mode is, this pattern is a standby mode, is used for carrying out other function when shield machine does not excavate, also be used for when shield machine when a kind of function switches to another kind of function; Particularly, bypass function is the situation that is used for mounting pipe sheet built ring; Under bypass mode, the excavation chamber is isolated, and each slush pump all keeps rotation according to the overburden pressure of pump and the deslagging flow of requirement.
4. bentonite mud water pressurization equilibration shield machine according to claim 1, it is characterized in that: said isolated pattern is, this pattern makes hydraulic fill pipeline system in the tunnel and ground system be in isolated fully state, but is located at the separation plant on ground this moment and the loop between the preparation factory still keeps being communicated with; Situation when particularly, this pattern is used for tunnel hydraulic fill pipeline extension; Each deslagging pump P2.1, P3 all shuts down; And P1.1 still keeps operation, to keep the circulation in loop between preparation factory and the separation plant.
5. bentonite mud water pressurization equilibration shield machine according to claim 1, it is characterized in that: said reverse pattern is, this pattern makes the mud reverse flow in the excavation chamber, only be used for some special situations, particularly excavate indoor the obstruction, or be used to clear up the Residue extraction pipeline on the shield machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101590985A CN101191417A (en) | 2007-12-21 | 2007-12-21 | Bentonite mud water pressurization equilibration shield machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101590985A CN101191417A (en) | 2007-12-21 | 2007-12-21 | Bentonite mud water pressurization equilibration shield machine |
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| CN101191417A true CN101191417A (en) | 2008-06-04 |
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| CNA2007101590985A Pending CN101191417A (en) | 2007-12-21 | 2007-12-21 | Bentonite mud water pressurization equilibration shield machine |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191939A (en) * | 2010-03-05 | 2011-09-21 | 上海盾构设计试验研究中心有限公司 | Test method for forming mud membrane by using slurry shield under high pressure |
| CN102434174A (en) * | 2011-12-30 | 2012-05-02 | 中铁一局集团有限公司 | Bentonite grouting method for construction of shield tunnel |
| CN102536253A (en) * | 2011-12-30 | 2012-07-04 | 广州轨道交通建设监理有限公司 | Construction method of earth cabin back filling and cabin entering operation during earth pressure shielding |
| CN102086767B (en) * | 2009-12-07 | 2012-12-05 | 同济大学 | Mud water balanced-type ring-shaped shield machine |
| CN103278376A (en) * | 2013-05-29 | 2013-09-04 | 浙江大学 | Test device of stability control model of earth pressure balance shield excavation surface |
| CN103696779A (en) * | 2013-12-31 | 2014-04-02 | 中铁一局集团有限公司 | Tunnel face breast wall filter cake construction process for shield compressed air operations |
| CN104121023A (en) * | 2014-07-02 | 2014-10-29 | 中交隧道工程局有限公司 | Method and device for testing leakage stopping value of excavation face mud film in bulk breaking by slurry shield with pressure |
| CN104213833A (en) * | 2013-06-03 | 2014-12-17 | 中国石油天然气集团公司 | Horizontal directional drilling crossing construction method and horizontal directional drilling crossing drilling device |
| CN104373131A (en) * | 2014-11-04 | 2015-02-25 | 中交第二航务工程局有限公司 | Construction method of earth pressure balance shield tunneling machine muck pressure maintaining pumping device |
| CN104481549A (en) * | 2014-11-19 | 2015-04-01 | 北方重工集团有限公司 | Bentonite injection method and system for blocking gushing water and sand |
| CN104695970A (en) * | 2014-08-04 | 2015-06-10 | 江苏锐成机械有限公司 | Mud concentration type shield tunneling construction method for shield tunneling machine |
| CN106522965A (en) * | 2016-11-03 | 2017-03-22 | 上海隧道工程有限公司 | Slurry for stabilizing shield excavated surface in marine stratum and construction method |
| CN108343441A (en) * | 2017-12-21 | 2018-07-31 | 北方重工装备（沈阳）有限公司 | A kind of auxiliary pressurize method for balancing earth-pressure shielding machine |
| CN108603406A (en) * | 2016-02-01 | 2018-09-28 | 海瑞克股份公司 | The system of the fluid pressure of tunnel boring equipment, the system for hydraulically exporting drilling bits and the stabilization for generating bore liquid in the region of the cutting wheel of tunnel boring equipment |
| CN108996148A (en) * | 2018-06-28 | 2018-12-14 | 徐工集团凯宫重工南京股份有限公司 | A kind of mud tube extension walking regulating device |
| CN110206551A (en) * | 2019-05-27 | 2019-09-06 | 北京交通大学 | The device and method that slurry-water balance type shield prototype muddy water circulation can be achieved |
| CN113153321A (en) * | 2021-03-30 | 2021-07-23 | 中建八局轨道交通建设有限公司 | Muck improvement system for shield construction and construction method thereof |
| CN115186433A (en) * | 2022-05-30 | 2022-10-14 | 北京交通大学 | Method for analyzing stratum dynamic hydraulic characteristic curve caused by slurry shield |
-
2007
- 2007-12-21 CN CNA2007101590985A patent/CN101191417A/en active Pending
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086767B (en) * | 2009-12-07 | 2012-12-05 | 同济大学 | Mud water balanced-type ring-shaped shield machine |
| CN102191939A (en) * | 2010-03-05 | 2011-09-21 | 上海盾构设计试验研究中心有限公司 | Test method for forming mud membrane by using slurry shield under high pressure |
| CN102434174A (en) * | 2011-12-30 | 2012-05-02 | 中铁一局集团有限公司 | Bentonite grouting method for construction of shield tunnel |
| CN102536253A (en) * | 2011-12-30 | 2012-07-04 | 广州轨道交通建设监理有限公司 | Construction method of earth cabin back filling and cabin entering operation during earth pressure shielding |
| CN102434174B (en) * | 2011-12-30 | 2013-10-16 | 中铁一局集团有限公司 | Bentonite grouting method for construction of shield tunnel |
| CN102536253B (en) * | 2011-12-30 | 2014-11-12 | 广州轨道交通建设监理有限公司 | Construction method of earth cabin back filling and cabin entering operation during earth pressure shielding |
| CN103278376A (en) * | 2013-05-29 | 2013-09-04 | 浙江大学 | Test device of stability control model of earth pressure balance shield excavation surface |
| CN104213833A (en) * | 2013-06-03 | 2014-12-17 | 中国石油天然气集团公司 | Horizontal directional drilling crossing construction method and horizontal directional drilling crossing drilling device |
| CN104213833B (en) * | 2013-06-03 | 2016-08-10 | 中国石油天然气集团公司 | Pipeline Crossing by Horizontal Directional Drilling construction method and rig thereof |
| CN103696779A (en) * | 2013-12-31 | 2014-04-02 | 中铁一局集团有限公司 | Tunnel face breast wall filter cake construction process for shield compressed air operations |
| CN104121023A (en) * | 2014-07-02 | 2014-10-29 | 中交隧道工程局有限公司 | Method and device for testing leakage stopping value of excavation face mud film in bulk breaking by slurry shield with pressure |
| CN104695970A (en) * | 2014-08-04 | 2015-06-10 | 江苏锐成机械有限公司 | Mud concentration type shield tunneling construction method for shield tunneling machine |
| CN104373131A (en) * | 2014-11-04 | 2015-02-25 | 中交第二航务工程局有限公司 | Construction method of earth pressure balance shield tunneling machine muck pressure maintaining pumping device |
| CN104481549A (en) * | 2014-11-19 | 2015-04-01 | 北方重工集团有限公司 | Bentonite injection method and system for blocking gushing water and sand |
| CN108603406A (en) * | 2016-02-01 | 2018-09-28 | 海瑞克股份公司 | The system of the fluid pressure of tunnel boring equipment, the system for hydraulically exporting drilling bits and the stabilization for generating bore liquid in the region of the cutting wheel of tunnel boring equipment |
| CN106522965A (en) * | 2016-11-03 | 2017-03-22 | 上海隧道工程有限公司 | Slurry for stabilizing shield excavated surface in marine stratum and construction method |
| CN108343441A (en) * | 2017-12-21 | 2018-07-31 | 北方重工装备（沈阳）有限公司 | A kind of auxiliary pressurize method for balancing earth-pressure shielding machine |
| CN108996148A (en) * | 2018-06-28 | 2018-12-14 | 徐工集团凯宫重工南京股份有限公司 | A kind of mud tube extension walking regulating device |
| CN110206551A (en) * | 2019-05-27 | 2019-09-06 | 北京交通大学 | The device and method that slurry-water balance type shield prototype muddy water circulation can be achieved |
| CN113153321A (en) * | 2021-03-30 | 2021-07-23 | 中建八局轨道交通建设有限公司 | Muck improvement system for shield construction and construction method thereof |
| CN113153321B (en) * | 2021-03-30 | 2023-03-14 | 中建八局轨道交通建设有限公司 | Muck improvement system for shield construction and construction method thereof |
| CN115186433A (en) * | 2022-05-30 | 2022-10-14 | 北京交通大学 | Method for analyzing stratum dynamic hydraulic characteristic curve caused by slurry shield |
| CN115186433B (en) * | 2022-05-30 | 2023-08-22 | 北京交通大学 | Analysis method for dynamic hydraulic characteristic curve of stratum caused by slurry shield |
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