CN107091098A - A kind of driving method of Suporting structure in high viscosity mud stone - Google Patents
A kind of driving method of Suporting structure in high viscosity mud stone Download PDFInfo
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- CN107091098A CN107091098A CN201710525189.XA CN201710525189A CN107091098A CN 107091098 A CN107091098 A CN 107091098A CN 201710525189 A CN201710525189 A CN 201710525189A CN 107091098 A CN107091098 A CN 107091098A
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- mud
- muddy water
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- water
- driving
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- 239000004575 stone Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 202
- 239000002893 slag Substances 0.000 claims abstract description 26
- 238000004140 cleaning Methods 0.000 claims abstract description 19
- 238000005406 washing Methods 0.000 claims abstract description 17
- 238000011897 real-time detection Methods 0.000 claims abstract description 4
- 239000002002 slurry Substances 0.000 claims description 28
- 238000000926 separation method Methods 0.000 claims description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 239000002270 dispersing agent Substances 0.000 claims description 20
- 239000011259 mixed solution Substances 0.000 claims description 20
- 239000007921 spray Substances 0.000 claims description 17
- 230000001351 cycling effect Effects 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 11
- 230000010355 oscillation Effects 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims description 3
- 239000008398 formation water Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 13
- 239000011435 rock Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 241000894007 species Species 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 3
- 229910052901 montmorillonite Inorganic materials 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002734 clay mineral Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 229910021532 Calcite Inorganic materials 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052900 illite Inorganic materials 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- VGIBGUSAECPPNB-UHFFFAOYSA-L nonaaluminum;magnesium;tripotassium;1,3-dioxido-2,4,5-trioxa-1,3-disilabicyclo[1.1.1]pentane;iron(2+);oxygen(2-);fluoride;hydroxide Chemical group [OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[F-].[Mg+2].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].[K+].[Fe+2].O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2 VGIBGUSAECPPNB-UHFFFAOYSA-L 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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- 230000010148 water-pollination Effects 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
-
- 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
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 discloses a kind of driving method of Suporting structure in high viscosity mud stone, this method comprises the following steps：The first, water cutter device is installed and checks that to wash away pipeline unimpeded；2nd, check whether cutterhead is bonded with mud cake；3rd, prerinse and shield machine circulation parameter and boring parameter are set；4th, shield driving and in real time detection Suporting structure operational factor；5th, judge whether amount of slag is reduced；6th, judge whether muddy water storehouse pressure fluctuates exception；7th, judge whether shield driving terminates；8th, delay cleaning.The present invention sets water cutter device, clod is carried out effective to wash away and cut, avoid the manual cleaning that opens a position, by setting stone crusher, the hard thing such as the fritter clod in mud or the stone mixed is crushed, avoid resulting in blockage during mud is circulated, be provided with inverse cleaning procedure, more effectively can be cleaned automatically to washing away pipeline.
Description
Technical field
The invention belongs to shield tunnel technical field in high viscosity mud stone, more particularly to a kind of Suporting structure is in high viscosity mud
Driving method in rock.
Background technology
Now with greatly developing for urban rail transit in China, the stratum that subway shield tunnel construction runs into also becomes increasingly complex
Diversity, higher requirement, especially highly viscous mudstone stratum are proposed to Suporting structure and construction technology level, it is necessary to using
Mud cake, mud is easily bonded and there is cutterhead in mudstone stratum shield driving in muddy water mixed solution shield machine, muddy water mixed solution shield machine
The problems such as blocking of sump door, difficult muddy water storehouse pressure transient, cutterhead driving.Mudstone stratum is run into, need to frequently be carried out with pressure
Open a position and be manually purged, not only security risk is big for artificial warehouse entry with pressure, and removing mud cake is long in time limit, and cost is big, causes wind
The high work efficiency simultaneously in danger is low, during being arranged outside mud, often due to the hard thing and sillar that are mixed in mud cause discharge pipe
Road blocks and dredged, it is necessary to stop work.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of Suporting structure
Driving method in high viscosity mud stone, it carries out effective washing away and cutting by setting water cutter device to clod, it is to avoid
Open a position manual cleaning, shortens the engineering time, reduces construction risk, is arranged at inverse cleaning procedure, can be more effectively to flush pipe
Road is cleaned automatically, prevents flush pipe from routeing in long-time unidirectional operation, is caused inside pipe wall to deposit and bonding body refuse, is caused to follow
Ring ability to work declines.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of Suporting structure is in high viscosity mud stone
Driving method, it is characterised in that：This method comprises the following steps：
Step 1: installing water cutter device and checking that to wash away pipeline unimpeded：First, water cutter device is installed to stretch into through air cushion storehouse
To muddy water storehouse, by the way that high-pressure hose is by water cutter device and is connected with water pipe and the high-pressure pump on supporting chassis after shield machine
Water side is connected；Then, check and wash away pipeline, it is ensured that each pipeline is unimpeded, the pipeline that washes away includes high-pressure hose and connection shield
The muddy water of structure machine nozzle washes away pipe network；
Second partition, air cushion storehouse and the first dividing plate that the water cutter device includes sequentially passing through shield machine stretch to the mud
Water knife steel pipe in sump, water knife steel pipe is arranged on positioned at the water knife shower nozzle of one end in muddy water storehouse and to be arranged on water knife steel pipe another
The preventer at end, preventer is arranged on second partition；
Step 2: checking whether cutterhead is bonded with mud cake：When cutterhead is bonded with mud cake, inject scattered in muddy water storehouse
Agent, divests the mud cake of cutterhead bonding；When cutterhead is not glued mud cake, step 3 is performed；
Step 3: prerinse and setting shield machine circulation parameter and boring parameter：First, muddy water mixed solution cyclic system is started
System, determines loop parameter, dregs discharge will be deposited in muddy water storehouse and air cushion storehouse；Then, the driving system of shield machine, and root are opened
The circulation parameter and boring parameter of shield are set according to the mud stone species in actual environment；
The boring parameter includes cutterhead rotating speed, cutter head torque, driving distance, driving speed, gross thrust；
The circulation parameter includes into slurry flow, plasma discharge flow, mud storehouse pressure and enters plasma discharge mud parameter；
Step 4: shield driving and in real time detection Suporting structure operational factor, process are as follows：
Step 401, by Slarry cycling apptss to muddy water wash away pipe network provide mud, the mud after supercharging by entering
The nozzle of shield machine, washes away to the cutterhead of shield machine；
The Slarry cycling apptss include being provided with the plasma discharge pipeline of slurry pump, the separation equipment for separating mud and setting
The pulp-inlet pipe road into stock pump is equipped with, the plasma discharge pipeline is connected with the import of the separation equipment, the pulp-inlet pipe Lu Yufen
Outlet from equipment is connected, and the plasma discharge pipeline is connected with air cushion orlop portion, and there are multiple branch pipes on the pulp-inlet pipe road point, point
It is other that key position in muddy water storehouse and air cushion storehouse is washed away；
Step 402, by high-pressure pump to high-pressure hose water under high pressure is provided, the water under high pressure enters after being pressurized by hydraulic pump
Water knife steel pipe, is cut and is washed away to the clod in muddy water storehouse from water knife shower nozzle formation water knife, and the spray in matching step 401
Clod is turned to muddy water mixed solution and washed away to the mud door for being arranged on the first dividing plate bottom in muddy water storehouse by mouth；
Step 403, the stone crusher by being installed in mud door, to enter mud door muddy water mixed solution in clod or
Sillar is crushed, then flows into air cushion storehouse；
Step 404, offered in plasma discharge hole, step 403 by broken by the bottom of the second partition in air cushion storehouse
Muddy water mixed solution enters Slarry cycling apptss from plasma discharge hole；
Muddy water mixed solution is pressurized into plasma discharge pipeline by slurry pump, separates clod with mud into separation equipment, point
Mud from after enters pulp-inlet pipe road and washes away weight in pipe network by entering the muddy water entered in muddy water storehouse and air cushion storehouse that is pressurized of stock pump
It is multiple to utilize；
Step 5: judging whether amount of slag is reduced：When amount of slag is reduced extremely, it should carry out inverse follow to Tu Cang and cutterhead
Ring is cleaned；When amount of slag is normal, step 6 is performed；
Step 6: judging whether muddy water storehouse pressure fluctuates exception：When the pressure oscillation of muddy water storehouse is abnormal, stops shield and push away
Enter, and circulation is carried out to muddy water storehouse and take slag cleaning, then restart shield driving；When the pressure oscillation of muddy water storehouse is normal, hold
Row step 7；
Step 7: judging whether shield driving terminates：Shield is judged by the driving distance in the boring parameter of setting
Structure driving whether terminates, when the actual driving of Suporting structure distance with setting the boring parameter in driving distance it is inconsistent
When, shield driving does not terminate, circulate operation step 4；When the distance of the actual driving of Suporting structure is joined with the driving of setting
When driving distance in number is consistent, at the end of shield driving, step 8 is performed；
Step 8: delay cleaning：After shield machine driving terminates, prolong to cleaning muddy water storehouse, air cushion storehouse and washing away pipeline
When wash cycles after shut down.
A kind of driving method of the above-mentioned Suporting structure in high viscosity mud stone, it is characterised in that：The nozzle includes using
In the panel nozzle for washing away cutter head panel and backboard nozzle for washing away cutterhead backboard, the muddy water washes away pipe network and the face
The first booster pump is provided with the pipeline section of plate nozzle connection, the muddy water is washed away on the pipeline section that pipe network is connected with the backboard nozzle
It is provided with the second booster pump.
A kind of driving method of the above-mentioned Suporting structure in high viscosity mud stone, it is characterised in that：The dispersant is mud
Rock dispersant, the mud stone dispersant uses water and mud stone dispersant stoste in mass ratio 1：5 ratio is mixed.
A kind of driving method of the above-mentioned Suporting structure in high viscosity mud stone, it is characterised in that：It is right in the step 5
When amount of slag is monitored, by the instrument for measuring density of slurry and the reading of mud flow meter that are set on shield machine to amount of slag
Calculated.
A kind of driving method of the above-mentioned Suporting structure in high viscosity mud stone, it is characterised in that：It is right in the step 6
When muddy water storehouse pressure is monitored, by setting multiple pressure sensors in muddy water storehouse.
A kind of driving method of the above-mentioned Suporting structure in high viscosity mud stone, it is characterised in that：The water cutter device is set
The quantity put has two, and two water cutter devices are symmetricly set in muddy water storehouse.
A kind of driving method of the above-mentioned Suporting structure in high viscosity mud stone, it is characterised in that：Set at the plasma discharge hole
It is equipped with grid, the plasma discharge pipeline section between the slurry pump and separation equipment and is provided with relay pump.
A kind of driving method of the above-mentioned Suporting structure in high viscosity mud stone, it is characterised in that：The stone crusher includes
Frame and it is symmetricly set in frame and rotatable left valve door and right valve door, hydraulic pressure is passed through on the left valve door and right valve door
Oil cylinder is connected with frame.
A kind of driving method of the above-mentioned Suporting structure in high viscosity mud stone, it is characterised in that：In the step one, institute
High-pressure pump is stated for GDL type MODEL VERTICAL MULTISTAGE PUMPs.
A kind of driving method of the above-mentioned Suporting structure in high viscosity mud stone, it is characterised in that：The water knife shower nozzle is
Fan spray head, the Fan spray head main body is cylinder, and the Fan spray head delivery port is sector, the Fan spray head connection end
It is provided with external screw thread.
The present invention has advantages below compared with prior art：
1st, the present invention is by setting water cutter device, clod is carried out effective to wash away and cut, it is to avoid open a position artificial clear
Reason, shortens the engineering time, reduces construction risk.
2nd, the present invention is crushed the fritter clod in mud or the hard thing of stone mixed by setting stone crusher,
Avoid resulting in blockage during mud is circulated, be delayed construction speed.
3rd, the present invention is provided with inverse cleaning procedure, more effectively can automatically be cleaned to washing away pipeline, prevent from washing away
Pipeline is caused inside pipe wall to deposit and bonding body refuse, is caused circulation ability to work to decline due to long-time unidirectional operation.
4th, the present invention carries out prerinse before shield-tunneling construction to washing away pipeline, terminates laggard line delay in shield-tunneling construction clear
Wash, effectively prevent from excavating deposition of the dregs in muddy water storehouse and air cushion storehouse.
5th, the present invention effectively prevents high-pressure slurry in use due to high-pressure hose and water knife by setting preventer
Fastener for connection defective tightness causes high-pressure slurry to eject.
In summary, the present invention its water cutter device is set, clod is carried out effective wash away and cut, it is to avoid the people that opens a position
Work is cleared up, and shortens the engineering time, reduces construction risk, by setting stone crusher, by fritter clod in mud or is mixed
The hard thing of stone is crushed, it is to avoid is resulted in blockage during mud is circulated, is delayed construction speed, is arranged at inverse cleaning journey
Sequence, more effectively can automatically be cleaned to washing away pipeline, prevent flush pipe from routeing in long-time unidirectional operation, cause in pipe
Wall deposits and bonding body refuse, causes circulation ability to work to decline.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is enlarged drawing at Fig. 1 A.
Fig. 3 is the structural representation of stone crusher of the present invention.
Fig. 4 is the structural representation of water cutter device of the present invention.
Fig. 5 is flow chart of the method for the present invention.
Description of reference numerals:
1-cutterhead；2-bracket；3-muddy water storehouse；
4-air cushion storehouse；5-middle shield；6-tail shield；
7-water cutter device；7-1-water knife steel pipe；7-2-water knife shower nozzle；
7-3-preventer；8-high-pressure hose；9-mud door；
10-plasma discharge hole；11-plasma discharge pipeline；12-pulp-inlet pipe road；
13-enter stock pump；14-slurry pump；15-relay pump；
16-separation equipment；17-stone crusher；17-1-left valve door；
17-2-right valve door；17-3-hydraulic jack；17-4-frame；
18-the first dividing plate；19-second partition.
Embodiment
As shown in Figure 1, Figure 2 with shown in Fig. 5, the driving method of Suporting structure of the invention in high viscosity mud stone includes following step
Suddenly：
Step 1: installing water cutter device and checking that to wash away pipeline unimpeded：First, water cutter device 7 is installed and passes through air cushion storehouse 4
Muddy water storehouse 3 is stretched to, by high-pressure hose 8 by water cutter device 7 with being connected with water pipe and on supporting chassis after shield machine
The water side connection of high-pressure pump；Then, check and wash away pipeline, it is ensured that each pipeline is unimpeded, the pipeline that washes away includes high-pressure hose 8
Pipe network is washed away with the muddy water of connection shield machine nozzle；
The water cutter device 7 is stretched to including sequentially passing through the second partition 19 of shield machine, the dividing plate 18 of air cushion storehouse 4 and first
Water knife steel pipe 7-1 in the muddy water storehouse 3, be arranged on water knife steel pipe 7-1 positioned at the water knife shower nozzle 7-2 of one end in muddy water storehouse 3 and
The preventer 7-3 of the water knife steel pipe 7-1 other ends is arranged on, preventer 7-3 is arranged on second partition 19；
It should be noted that when implementing shield tunnel, there is 20a-1 intense weathering munstones in tunnel, remaining is top sand,
Bottom rock stratum, the description of 20a-1 intense weathering munstones：Cinerous, structure is largely destroyed, and core presss from both sides severely-weathered chunky shape in cohesive soil
Or severely-weathered piece of mixed stickiness earthy, drilled dry can creep into, and belong to ultimate soft rock, rock crushing, and rock mass basic quality's grade is V grade；High wind
It is illite, montmorillonite, quartz, mica, feldspar and calcite composition to change mud stone predominant amount, and wherein montmorillonite is a kind of typical case
Clay mineral, crystal structure is the repeat unit that two layers silicon-oxy tetrahedron presss from both sides one layer of alumina octahedral composition, with powerful
Macromolecule exchange capacity and hydrophily and its excellent water swelling ability and adsorption capacity.This clay mineral water-swellable,
And it is very sticky, easily unite, thus fine grained montmorillonite be shield cutter produced in the tunneling process of underground mud stone adhesion and
Where the main cause of mud lining problem.
The water cutter device 7 is to eject highly pressurised liquid with fixed direction using the shape of shower nozzle, highly pressurised liquid
The liquid flow of solid shape is formed in extruding and course of injection, and with higher speed and pressure, can be to muddy water storehouse 3
The clod of middle formation is cut and is washed away the clod after cutting, and highly pressurised liquid can be that water can also be mud, or
Clear water is used in other liquid, the present embodiment, the proportion of clear water is light compared with mud, and effect is more preferable after being pressurizeed through high-pressure pump, together
When high pressure pump priming compared with mud, to equipment using good compared with mud.The water cutter device 7 includes water knife steel pipe 7-1, water knife
Shower nozzle 7-2 and high-pressure hose 7-3, the water knife steel pipe 7-1 sequentially pass through second partition 19, the dividing plate 18 of air cushion storehouse 4 and first and stretched
Enter to the muddy water storehouse 3, directly stretch into water knife shower nozzle 7-2 in muddy water storehouse 3, and water source is provided to water knife shower nozzle 7-2, keep away
The circuit design of complexity, and the convenient sealing of steel pipe are exempted from, have been set in the junction of the water knife steel pipe 7-1 and high-pressure hose 8
There is preventer 7-3, it is to avoid the water knife steel pipe 7-1 causes high-pressure hose 8 and water knife steel pipe with the bonding strength deficiency of high-pressure hose 8
7-1 is separated, and causes the highly pressurised liquid in water knife steel pipe to spray.
Step 2: checking whether cutterhead is bonded with mud cake：When cutterhead 1 is bonded with mud cake, inject scattered in muddy water storehouse 3
Agent, divests the mud cake of the bonding of cutterhead 1；When cutterhead 1 is not glued mud cake, step 3 is performed；
It it should be noted that producing mud cake during shield driving, gradually can deteriorate boring parameter, equipment thrust can be caused,
Moment of torsion reaches busy hour, still without effective progress, therefore uses dispersant to muddy water storehouse 3 and air cushion when it is determined that producing mud cake
Storehouse 4 carries out injection dispersant processing, is needed before dispersant injection by Slarry cycling apptss that the mud in storehouse is whole as much as possible
Clear water is replaced into, in order to avoid the dispersant and slurry reaction of injection, influence dispersant and mud cake and the reaction effect of accumulated slag.
Step 3: prerinse and setting shield machine circulation parameter and boring parameter：First, muddy water mixed solution cyclic system is started
System, determines loop parameter, by deposition dregs discharge in muddy water storehouse 3 and air cushion storehouse 4；Then, the driving system of shield machine is opened, and
Mud stone species in actual environment sets the circulation parameter and boring parameter of shield；
The boring parameter includes cutterhead rotating speed, cutter head torque, driving distance, driving speed, gross thrust；
The circulation parameter includes into slurry flow, plasma discharge flow, mud storehouse pressure and enters plasma discharge mud parameter；
It should be noted that by the muddy water mixed solution circulatory system, circulation can be effectively by muddy water storehouse 3 and air cushion storehouse 4 in advance
Debris flush out shield machine, while can also further determine that wash away pipeline whether being capable of normal work by prewashed operation
Make, should be excluded in time if discovery is faulty；In addition during actual shield tunnel, the country rock species composition and knot of different regions
Structure is different, the boring parameter of country rock species the Nomenclature Composition and Structure of Complexes setting shield machine that should be in actual environment, is conducive to improving shield
The operating efficiency of structure machine and the service life for extending shield machine as far as possible.
It is described enter plasma discharge mud parameter include mud balance, mud viscosity, mud PH value and sand factor, during actual measurement,
Mainly measure the mud balance into plasma discharge mud, mud viscosity or mud PH value.
In the present embodiment, shield cutter enters 20a-1 intense weathering munstones, need to be to cutterhead rotating speed, driving speed, always push away
Power, enter plasma discharge flow, otch hydraulic pressure and be adjusted, cutterhead rotating speed is 1.3~1.5rpm, and cutter head torque is less than 3500kNm,
Driving speed is 10mm/min, and gross thrust is less than 2300t, enters to starch flow for 950-1050m3/ h, plasma discharge flow is 1000-
1100m3/ h, muddy water storehouse pressure requirements constant pressure, reduce fluctuation, according to liquid level change control set amount, mud balance be 1.1~
1.15g/cm3, mud viscosity 20s/500ml~24s/500ml, mud viscosity improve, raising take slag ability.
The boring parameter includes cutterhead rotating speed, cutter head torque, driving distance, driving speed, gross thrust；The circulation ginseng
Number includes into slurry flow, plasma discharge flow, mud storehouse pressure and enters to starch slurry specific gravity；
Step 4: shield driving and in real time detection Suporting structure operational factor, process are as follows：
Step 401, by Slarry cycling apptss to muddy water wash away pipe network provide mud, the mud after supercharging by entering
The nozzle of shield machine, washes away to the cutterhead 1 of shield machine；
The Slarry cycling apptss include being provided with the plasma discharge pipeline 11 of slurry pump 14, the separation equipment for separating mud
16 and the pulp-inlet pipe road 12 into stock pump 13 is provided with, the plasma discharge pipeline 11 is connected with the import of the separation equipment 16, institute
The outlet that pulp-inlet pipe road 12 is stated with separation equipment 16 is connected, and the plasma discharge pipeline 11 is connected with the bottom of air cushion storehouse 4, it is described enter
12 points of pipeline of slurry has multiple branch pipes, and key position in muddy water storehouse 3 and air cushion storehouse 4 is washed away respectively；
It should be noted that the key position includes stone crusher, grid, the back of cutterhead 1 and the positive radial direction position of cutterhead 1
Put.
It should be noted that the nozzle, which is arranged on, easily glues incrusted place, mud of the nozzle towards design
Flow direction, multiple nozzles wash away pipe network with the muddy water and are connected, and the nozzle and muddy water are washed away between pipe network also
The booster pump for being pressurized for muddy water mixed solution is provided with, can effectively prevent and weaken mud cake bonding situation.
Step 402, by high-pressure pump to high-pressure hose 8 provide water under high pressure, the water under high pressure is pressurized laggard by hydraulic pump
Enter water knife steel pipe 7-1, the clod in muddy water storehouse 3 is cut and washed away from water knife shower nozzle 7-2 formation water knives, and matching step
Clod is turned to muddy water mixed solution and washed away to the mud door 9 for being arranged on the bottom of the first dividing plate 18 in muddy water storehouse by the nozzle in 401；
It should be noted that as shown in figure 4, water knife shower nozzle 7-2 operationally forms larger resistance to high-pressure slurry, making
Gap of the mud between water knife steel pipe 7-1 and water knife penstock installation pore outwards sprays, and preventer 7-3 effectively blocks outer spray
High-pressure slurry, protection is internally formed to shield machine.
Step 403, the stone crusher 17 by being installed in mud door 9, the mud in muddy water mixed solution to entering mud door 9
Block or sillar are crushed, then flow into air cushion storehouse 4；
It should be noted that stone crusher 17 can effectively prevent from being mixed into hard rock in mud or be difficult to wash away and cut
Larger mud cake is blocked at mud door 9 and blocked, and decreases larger clod and hard rock enters the Slarry cycling apptss,
The possibility of pipeline blockage is caused, when mud flows in muddy water storehouse 3, some overweight body refuses can be gradually in the bottom of muddy water storehouse 3
Alluvial, can cause mud door 9 and plasma discharge hole 10 to block simultaneously when serious, now be accomplished by shutting down, open a position carry out manual cleaning, greatly
The duration is delayed greatly, while labour cost is also improved, while when body refuse alluvial is in 3 bottom of muddy water storehouse, rubble can be passed through
The activity of machine 10 stirs mud, to reach the purpose of dredging body refuse, reduces the possibility of body refuse alluvial.
Step 404, offered in plasma discharge hole 10, step 403 by broken by the bottom of the second partition 19 in air cushion storehouse 4
Broken muddy water mixed solution enters Slarry cycling apptss from plasma discharge hole 10；
Muddy water mixed solution is pressurized into plasma discharge pipeline 11 by slurry pump 14, into separation equipment 16 by clod and mud
Separation, the mud after separation enters the muddy water that supercharging of the pulp-inlet pipe road 12 by entering stock pump 13 enters in muddy water storehouse 3 and air cushion storehouse 4
Wash away in pipe network and reuse；
It should be noted that the effect of the Slarry cycling apptss is essentially consisted in carries out precipitation separating treatment by slurry collecting
Afterwards again in the nozzle and water cutter device 7 of input shield machine, Slarry cycling apptss include plasma discharge pipeline 11 and pulp-inlet pipe road
12, plasma discharge pipeline 11 be used for the mud washed away is transported in the separation equipment 16 on ground, the plasma discharge pipeline 11 and enter slurry
Pipeline 12 is provided with the hydraulic pump for supercharging, and described one end of plasma discharge pipeline 11 passes through the phase of plasma discharge hole 10 with the bottom of air cushion storehouse 4
Connection, the other end is connected with the import of separation equipment 16, and described one end of pulp-inlet pipe road 12 is washed away pipe network with the muddy water and is connected, another
End is connected with the outlet of separation equipment 16.
Step 5: judging whether amount of slag is reduced：When amount of slag is reduced extremely, it should Tu Cang and cutterhead 1 are carried out inverse
Wash cycles；When amount of slag is normal, step 6 is performed；
It should be noted that amount of slag is different due to the actual conditions at test point, and clod quantity and Volume Changes
The fluctuation of a normal range (NR) can be produced, the cutting output of this fluctuation range and shield machine, the size and pump pressure for washing away pipeline have
Close.
Step 6: judging whether muddy water storehouse pressure fluctuates exception：When the pressure oscillation of muddy water storehouse is abnormal, stops shield and push away
Enter, and circulation is carried out to muddy water storehouse 3 and take slag cleaning, then restart shield driving；When the pressure oscillation of muddy water storehouse is normal, hold
Row step 7；
It should be noted that in mud stone section tunneling process, grid occurs to block in such as tunneling process or mud door 9 is certain
When the accumulated slag of degree causes circulation system not slag tap normally, the pressure oscillation in muddy water storehouse 3 can be caused abnormal, now using inverse
Circulation pattern is cleaned, and muddy water mixed solution is reversed in pipeline is washed away, and is cleaned to washing away pipeline.
Step 7: judging whether shield driving terminates：Shield is judged by the driving distance in the boring parameter of setting
Structure driving whether terminates, when the actual driving of Suporting structure distance with setting the boring parameter in driving distance it is inconsistent
When, shield driving does not terminate, circulate operation step 4；When the distance of the actual driving of Suporting structure is joined with the driving of setting
When driving distance in number is consistent, at the end of shield driving, step 8 is performed；
Step 8: delay cleaning：After shield machine driving terminates, carried out to cleaning muddy water storehouse 3, air cushion storehouse 4 and washing away pipeline
Shut down after delay loop cleaning.
It should be noted that after the completion of shield-tunneling construction, shield machine need to again be removed after wash cycles, be conducive to shield
The maintenance and protection of structure machine, also allow for transport.
In the present embodiment, the nozzle includes being used to wash away the panel nozzle of cutter head panel and for washing away cutterhead backboard
Backboard nozzle, the muddy water, which washes away, is provided with the first booster pump, the muddy water on the pipeline section that pipe network is connected with the panel nozzle
Wash away on the pipeline section that pipe network is connected with the backboard nozzle and be provided with the second booster pump.
In the present embodiment, the dispersant is mud stone dispersant, and the mud stone dispersant is former using water and mud stone dispersant
Liquid in mass ratio 1：5 ratio is mixed.
It should be noted that the ratio of dispersant depends on the bonding situation of mud cake, it is also relevant with the composition of dispersant, this
Mud stone dispersant starts driving in embodiment after being soaked 10~15 hours in muddy water storehouse and air cushion storehouse.
It is close by the mud set on shield machine when being monitored in the step 5 to amount of slag in the present embodiment
The reading of degree measuring instrument and mud flow meter is calculated amount of slag.
It should be noted that amount of slag can not be measured accurately because the mixability of mud and water is uneven, also due to mud
The characteristic of slag generally can not be measured directly, and body refuse is water insoluble, simply be mixed with water, according to the density and flow of mud,
The dregginess in mud can be calculated.
In the present embodiment, when being monitored in the step 6 to the pressure of muddy water storehouse 3, by setting many in muddy water storehouse 3
Individual pressure sensor.
Shield machine can not carry out direct measurement to the pressure in muddy water storehouse 3 in itself, but in order to which easy construction and detection are accurate,
Pressure sensor is installed before construction, the quantity of the pressure sensor is usually provided with multiple in the muddy water storehouse 3.
In the present embodiment, the quantity that the water cutter device 7 is set has two, and two water cutter devices 7 are symmetricly set on
In muddy water storehouse 3.
It should be noted that the quantity that the water cutter device 7 is set there are two and is symmetrical arranged, reinforcement pair is not only contributed to
The cutting of clod and washed away in muddy water storehouse, and the effect for possessing identical cutting and washing away mud cake is rotated and reverse to cutterhead 1
Really, prevent cutterhead 1 from changing the possibility for adding clod bonding due to turning to.
In the present embodiment, grid, the row between the slurry pump 14 and separation equipment 16 are provided with the plasma discharge hole 10
Relay pump 15 is provided with 11 sections of pipe of slurry.
It should be noted that may be otherwise uneasy grate, the purpose of installation grid is will to mud progress filtering
The rock of bulk or clod separation prevent large rock mass or clod from entering after plasma discharge pipeline 11 outside plasma discharge pipeline 11 in mud
Pipeline is resulted in blockage, construction speed is influenceed, because the underground space is limited, mud separation equipment is placed on the ground, discharge pipe
Shield slurry is pumped in the separation equipment 16 on ground by road 11 out of tunnel, larger pressure is generally required, in discharge pipe
One relay pump 15 being pressurized jointly for mud with slurry pump 14 would generally be set on road 11, to ensure mud with enough pressures
The separation equipment 16 that power and flow enter on ground.
In the present embodiment, in the step one, the high-pressure pump is GDL type MODEL VERTICAL MULTISTAGE PUMPs.
It should be noted that the pressure loss of the water in pipeline is very big, pressure is there is no when often having arrived shield machine
Power, water cutter device 7 generally requires the water of high pressure, then needs to pressurize to the water again, on pulp-inlet pipe road 12 and high-pressure hose 8
Supercharging device is provided with link position, for being pressurizeed for the water.The present embodiment uses GDL type MODEL VERTICAL MULTISTAGE PUMPs, pump
Power of motor 22kw, lift 98m, per hour 56m3。
In the present embodiment, the stone crusher 17 includes frame 17-4 and is symmetricly set on frame 17-4 and rotatable
Pass through hydraulic jack 17-3 and frame on left valve door 17-1 and right valve door 17-2, the left valve door 17-1 and right valve door 17-2
17-4 is connected.
It should be noted that as shown in figure 3, the structure of the stone crusher 17 can also be combination or other knots
Conjunction mode, in the present embodiment, by the way of being combined using left and right, including left valves 17-1 and right valve door 17-2, the left valves
17-1 and right valve door 17-2 are symmetrical arranged, and are respectively arranged with respective drive device, and action is independent of each other.
In the present embodiment, the water knife shower nozzle 7-2 is Fan spray head, and the Fan spray head main body is cylinder, the fan
Shape nozzle delivery port is sector, and the Fan spray head connection end is provided with external screw thread.
It should be noted that the nozzle body of cylinder is provided with external screw thread and is easily installed on water knife steel pipe 7-1, spray
Head delivery port is sector, and mud can be made to form effective water knife, and the direction for keeping mud to spray, clod is effectively cut
Cut.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, it is every according to the present invention
Any simple modification, change and equivalent structure change that technical spirit is made to above example, still fall within skill of the present invention
In the protection domain of art scheme.
Claims (10)
1. a kind of driving method of Suporting structure in high viscosity mud stone, it is characterised in that：This method comprises the following steps：
Step 1: installing water cutter device and checking that to wash away pipeline unimpeded：First, water cutter device (7) is installed to stretch through air cushion storehouse (4)
Enter to muddy water storehouse (3), by high-pressure hose (8) by water cutter device (7) with being connected with water pipe and installed in supporting chassis after shield machine
On high-pressure pump water side connection；Then, check and wash away pipeline, it is ensured that each pipeline is unimpeded, the pipeline that washes away includes high pressure
The muddy water of flexible pipe (8) and connection shield machine nozzle washes away pipe network；
Second partition (19), air cushion storehouse (4) and the first dividing plate (18) that the water cutter device (7) includes sequentially passing through shield machine are stretched
Enter to the water knife steel pipe (7-1) in the muddy water storehouse (3), be arranged on the water that water knife steel pipe (7-1) is located at muddy water storehouse (3) interior one end
Knife shower nozzle (7-2) and the preventer (7-3) for being arranged on water knife steel pipe (7-1) other end, preventer (7-3) are arranged on second partition
(19) on；
Step 2: checking whether cutterhead is bonded with mud cake：When cutterhead (1) is bonded with mud cake, injection is scattered in muddy water storehouse (3)
Agent, divests the mud cake that cutterhead (1) is bonded；When cutterhead (1) is not glued mud cake, step 3 is performed；
Step 3: prerinse and setting shield machine circulation parameter and boring parameter：First, the muddy water mixed solution circulatory system is started,
Loop parameter is determined, by deposition dregs discharge in muddy water storehouse (3) and air cushion storehouse (4)；Then, the driving system of shield machine is opened,
And the mud stone species in actual environment sets the circulation parameter and boring parameter of shield；
The boring parameter includes cutterhead rotating speed, cutter head torque, driving distance, driving speed, gross thrust；
The circulation parameter includes into slurry flow, plasma discharge flow, mud storehouse pressure and enters plasma discharge mud parameter；
Step 4: shield driving and in real time detection Suporting structure operational factor, process are as follows：
Step 401, by Slarry cycling apptss to muddy water wash away pipe network provide mud, the mud by after supercharging enter shield
The nozzle of machine, washes away to the cutterhead (1) of shield machine；
The Slarry cycling apptss include being provided with the plasma discharge pipeline (11) of slurry pump (14), the separation equipment for separating mud
(16) and it is provided with the pulp-inlet pipe road (12) into stock pump (13), the plasma discharge pipeline (11) and the import of the separation equipment (16)
It is connected, the pulp-inlet pipe road (12) is connected with the outlet of separation equipment (16), the plasma discharge pipeline (11) and air cushion storehouse (4)
Bottom is connected, and the pulp-inlet pipe road (12) point has multiple branch pipes, respectively to muddy water storehouse (3) and air cushion storehouse (4) interior key position
Washed away；
Step 402, by high-pressure pump to high-pressure hose (8) water under high pressure is provided, the water under high pressure enters after being pressurized by hydraulic pump
Water knife steel pipe (7-1), is cut and is washed away to the clod in muddy water storehouse (3) from water knife shower nozzle (7-2) formation water knife, and coordinated
Clod is turned to muddy water mixed solution to the mud door for being arranged on the first dividing plate (18) bottom in muddy water storehouse by the nozzle in step 401
(9) wash away；
Step 403, the stone crusher (17) by being installed in mud door (9), to entering in the muddy water mixed solution of mud door (9)
Clod or sillar are crushed, then flow into air cushion storehouse (4)；
Step 404, offered and passed through in plasma discharge hole (10), step 403 by the bottom of the second partition (19) in air cushion storehouse (4)
Broken muddy water mixed solution enters Slarry cycling apptss from plasma discharge hole (10)；
Muddy water mixed solution enters plasma discharge pipeline (11) and is pressurized by slurry pump (14), into separation equipment (16) by clod and mud
Separation, the mud after separation enters the supercharging of pulp-inlet pipe road (12) by entering stock pump (13) and enters muddy water storehouse (3) and air cushion storehouse (4)
In muddy water wash away in pipe network reuse；
Step 5: judging whether amount of slag is reduced：When amount of slag is reduced extremely, it should carry out inverse follow to Tu Cang and cutterhead (1)
Ring is cleaned；When amount of slag is normal, step 6 is performed；
Step 6: judging whether muddy water storehouse pressure fluctuates exception：When the pressure oscillation of muddy water storehouse is abnormal, stop shield driving, and
Muddy water storehouse (3) are carried out with circulation and takes slag cleaning, then restarts shield driving；When the pressure oscillation of muddy water storehouse is normal, perform
Step 7；
Step 7: judging whether shield driving terminates：Judge that shield is dug by the driving distance in the boring parameter of setting
Enter and whether terminate, when the driving distance in the distance of the actual driving of Suporting structure and the boring parameter of setting is inconsistent,
Shield driving does not terminate, circulate operation step 4；When the distance and the boring parameter of setting of the actual driving of Suporting structure
In driving distance it is consistent when, at the end of shield driving, perform step 8；
Step 8: delay cleaning：After shield machine driving terminates, to cleaning muddy water storehouse (3), air cushion storehouse (4) and washing away pipeline progress
Shut down after delay loop cleaning.
2. according to driving method of a kind of Suporting structure in high viscosity mud stone described in claim 1, it is characterised in that：It is described
Nozzle includes the panel nozzle for washing away cutter head panel and the backboard nozzle for washing away cutterhead backboard, the muddy water flush pipe
The first booster pump is provided with the pipeline section that net is connected with the panel nozzle, the muddy water washes away pipe network and connected with the backboard nozzle
The second booster pump is provided with the pipeline section connect.
3. according to driving method of a kind of Suporting structure in high viscosity mud stone described in claim 1, it is characterised in that：It is described
Dispersant is mud stone dispersant, and the mud stone dispersant uses water and mud stone dispersant stoste in mass ratio 1：5 ratio mixing
Form.
4. according to driving method of a kind of Suporting structure in high viscosity mud stone described in claim 1, it is characterised in that：It is described
When being monitored in step 5 to amount of slag, by the reading of the instrument for measuring density of slurry and mud flow meter that are set on shield machine
It is several that amount of slag is calculated.
5. according to driving method of a kind of Suporting structure in high viscosity mud stone described in claim 1, it is characterised in that：It is described
When being monitored in step 6 to muddy water storehouse (3) pressure, by setting multiple pressure sensors in muddy water storehouse (3).
6. according to driving method of a kind of Suporting structure in high viscosity mud stone described in claim 1, it is characterised in that：It is described
The quantity that water cutter device (7) is set has two, and two water cutter devices (7) are symmetricly set in muddy water storehouse (3).
7. according to driving method of a kind of Suporting structure in high viscosity mud stone described in claim 1, it is characterised in that：It is described
Plasma discharge hole (10) place is provided with grid, is set in plasma discharge pipeline (11) section between the slurry pump (14) and separation equipment (16)
There is relay pump (15).
8. according to driving method of a kind of Suporting structure in high viscosity mud stone described in claim 1, it is characterised in that：It is described
Stone crusher (17) includes frame (17-4) and is symmetricly set in frame (17-4) and rotatable left valve door (17-1) and right valve
Pass through hydraulic jack (17-3) and frame (17-4) phase on door (17-2), the left valve door (17-1) and right valve door (17-2)
Even.
9. according to driving method of a kind of Suporting structure in high viscosity mud stone described in claim 1, it is characterised in that：It is described
In step one, the high-pressure pump is GDL type MODEL VERTICAL MULTISTAGE PUMPs.
10. according to driving method of a kind of Suporting structure in high viscosity mud stone described in claim 1, it is characterised in that：Institute
Water knife shower nozzle (7-2) is stated for Fan spray head, the Fan spray head main body is cylinder, the Fan spray head delivery port is sector,
The Fan spray head connection end is provided with external screw thread.
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| CN201710525189.XA CN107091098B (en) | 2017-06-30 | 2017-06-30 | A kind of driving method of Suporting structure in high viscosity mud stone |
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| CN201710525189.XA CN107091098B (en) | 2017-06-30 | 2017-06-30 | A kind of driving method of Suporting structure in high viscosity mud stone |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107489428A (en) * | 2017-09-30 | 2017-12-19 | 中国铁建重工集团有限公司 | Mud circulation system for slurry balance shield machine |
| CN109113753A (en) * | 2018-09-30 | 2019-01-01 | 中铁工程装备集团有限公司 | A kind of device and method for abolishing cutterhead mud cake |
| CN109139025A (en) * | 2018-10-29 | 2019-01-04 | 中铁工程装备集团有限公司 | A kind of cutter head of shield machine mud cake restructuring bankrupt |
| CN109403990A (en) * | 2018-10-16 | 2019-03-01 | 中建八局轨道交通建设有限公司 | The remodeling method and system of slurry shield slurry flushing system |
| CN111594194A (en) * | 2020-06-28 | 2020-08-28 | 中铁十四局集团大盾构工程有限公司 | Shield constructs quick-witted operating condition monitored control system |
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| CN114109412A (en) * | 2021-11-30 | 2022-03-01 | 中铁一局集团有限公司 | Slurry shield circulation system and method based on double crushers and double slurry discharge channels |
| CN114164929A (en) * | 2021-10-21 | 2022-03-11 | 王树生 | Wall foundation and construction device thereof |
| CN114233322A (en) * | 2022-01-11 | 2022-03-25 | 中铁十四局集团有限公司 | Multi-pipeline slurry discharge device, shield equipment with same and shield method |
| CN116906069A (en) * | 2023-09-14 | 2023-10-20 | 中建交通建设集团有限公司 | Cutting system for preventing sludge blockage in slurry shield machine |
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| CN107489428B (en) * | 2017-09-30 | 2023-11-07 | 中国铁建重工集团股份有限公司 | Slurry circulation system for slurry balance shield machine |
| CN107489428A (en) * | 2017-09-30 | 2017-12-19 | 中国铁建重工集团有限公司 | Mud circulation system for slurry balance shield machine |
| CN109113753A (en) * | 2018-09-30 | 2019-01-01 | 中铁工程装备集团有限公司 | A kind of device and method for abolishing cutterhead mud cake |
| CN109403990A (en) * | 2018-10-16 | 2019-03-01 | 中建八局轨道交通建设有限公司 | The remodeling method and system of slurry shield slurry flushing system |
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| WO2021098444A1 (en) * | 2019-11-22 | 2021-05-27 | 中铁隧道局集团有限公司 | Technique for controlling tunneling parameters of shielded tunneling machine for rocky region at shielded tunneling launch point |
| CN111594194B (en) * | 2020-06-28 | 2022-07-12 | 中铁十四局集团大盾构工程有限公司 | Shield constructs quick-witted operating condition monitored control system |
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| CN112160760A (en) * | 2020-09-12 | 2021-01-01 | 中铁隧道局集团有限公司 | Construction method for coping with accumulated slag in large-diameter slurry shield cabin |
| CN112160760B (en) * | 2020-09-12 | 2022-07-22 | 中铁隧道局集团有限公司 | Construction method for coping with accumulated slag in large-diameter slurry shield cabin |
| CN114164929A (en) * | 2021-10-21 | 2022-03-11 | 王树生 | Wall foundation and construction device thereof |
| CN114109412A (en) * | 2021-11-30 | 2022-03-01 | 中铁一局集团有限公司 | Slurry shield circulation system and method based on double crushers and double slurry discharge channels |
| CN114109412B (en) * | 2021-11-30 | 2024-05-10 | 中铁一局集团有限公司 | Slurry shield circulation system and method based on double crushers and double slurry channels |
| CN114233322A (en) * | 2022-01-11 | 2022-03-25 | 中铁十四局集团有限公司 | Multi-pipeline slurry discharge device, shield equipment with same and shield method |
| CN116906069A (en) * | 2023-09-14 | 2023-10-20 | 中建交通建设集团有限公司 | Cutting system for preventing sludge blockage in slurry shield machine |
| CN116906069B (en) * | 2023-09-14 | 2024-04-05 | 中建交通建设集团有限公司 | Cutting system for preventing sludge blockage in slurry shield machine |
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