CN104790962A - Method of switching earth pressure tunneling mode into muddy water tunneling mode for shield tunneling machine - Google Patents
Method of switching earth pressure tunneling mode into muddy water tunneling mode for shield tunneling machine Download PDFInfo
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- CN104790962A CN104790962A CN201510091383.2A CN201510091383A CN104790962A CN 104790962 A CN104790962 A CN 104790962A CN 201510091383 A CN201510091383 A CN 201510091383A CN 104790962 A CN104790962 A CN 104790962A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 230000005641 tunneling Effects 0.000 title abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 239000002002 slurry Substances 0.000 claims description 41
- 239000002689 soil Substances 0.000 claims description 37
- 239000004575 stone Substances 0.000 claims description 9
- 230000010412 perfusion Effects 0.000 claims description 5
- 239000007858 starting material Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract 3
- 238000010276 construction Methods 0.000 description 9
- 230000000903 blocking effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000000306 recurrent effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a method of switching an earth pressure tunneling mode into a muddy water tunneling mode for a shield tunneling machine. The method comprises the steps that an earth discharge gate of a screw conveyor is closed, and the screw conveyor is rotated forwards, so that effective earth blockage is formed inside the screw conveyor; a muddy water treater is started, a regulation valve set is switched on, and a built-in bypass loop flow mode is started; an automatic pressure-maintaining mode is started, corresponding valves are switched on gradually, and mud is injected into an earth bin; a cutter disc is started, and an earth bin stirring bar and the cutter disc are utilized to stir earth mass inside the bin; the built-in bypass loop flow mode is switched to, and the cutter disc is rotated at a low speed so that sufficient stirring is achieved; after the built-in bypass loop flow mode is normal, an inverse loop flow bin cleaning mode is switched to for cleaning the earth bin and pipelines; after the earth bin and the pipelines are normal, a forward loop flow bin cleaning mode is switched to, mud circulation is reinforced, and the automatic pressure-maintaining mode is started; a loop flow forward tunneling loop flow mode is switched to. By the adoption of the method, the earth pressure tunneling mode can be conveniently, rapidly and safely switched into the muddy water tunneling mode without detaching and installing any component.
Description
Technical field
The present invention relates to a kind of underground construction shield construction method, particularly a kind of double mode shield machine is switched to the method for muddy water boring mode by soil pressure boring mode.
Background technology
Shield Method is one of important technology becoming tunnel construction.In general the kind of Suporting structure is corresponding with geological conditions, and what adopt at present is substantially all monotype shield machine, cannot carry out pattern and switch utilization.Tunneling method can only be the wherein one of earth pressure balanced driving or slurry-water balance type driving, and therefore the ability to work of shield machine adaptation ground environment, ground surface environment and long distance is extremely restricted.
Particularly change greatly at the geological condition passing through area of advancing, comparatively complicated location, the complex environments such as earth's surface construction of structures, river basin, pipeline.Easily there is the problems such as driving difficulty in the shield machine of single boring mode.
The shield machine of traditional single-mode is by type selecting than choosing, adaptability teaching, and one is the one in selected earth pressure balance shield machine or slurry-water balance type shield machine; Two is select two kinds of shield machines simultaneously, is applied to respectively in engineering, and causing increases equipment investment expense or increase and to start the expense of the great numbers such as active well.Due to the limitation of shield machine single-mode, this method, once selected, be applied in constructing tunnel and just cannot change, then need to spend very large economic cost and duration cost if must change shield machine.Affect the construction period, increase engineering cost, adverse effect is caused to construction.
On basis for slurry shield abundant in compound stratum, EPB shield tunneling construction experience, in conjunction with the practical experience that muddy water, the double mode shield machine of soil pressure use, take the lead in the new ideas mode switch function proposed.But now do not switch to the construction method of soil pressure boring mode by muddy water boring mode in industry or achieve the construction method being switched to muddy water boring mode by soil pressure boring mode.
Summary of the invention
Object of the present invention, is to provide a kind of shield machine to switch to the method for muddy water boring mode by soil pressure boring mode, and it does not need to carry out under given conditions installing and removing any parts, can realize safety as required at any time, switch fast.
The solution that the present invention solves its technical problem is: shield machine switches to the method for muddy water boring mode by soil pressure boring mode, comprises the following steps,
1) close screw machine to be unearthed gate, rotate forward screw machine, make screw machine inside form effectively soil plug;
2) start Slurry treatment machine, open control valve group, starter motor internal bypass circulation;
3) recover interlocking, the hand sluice valve before the row's of opening mud valve, open automatic pressure-maintaining pattern, progressively open corresponding valve, filling mud in native storehouse;
4) start cutterhead, utilize native storehouse stirring rod, cutterhead stirs the soil body in storehouse;
5) switch to machine internal bypass circulation, slow rotation cutterhead, make stirring abundant;
6) standby internal bypass circulation normal after switch to and inversely send circulation to bring down stocks, Tu Cang and pipeline are cleaned;
7) after Tu Cang and pipeline are normal, switch to and just send circulation to bring down stocks, strengthen mud circulation, open automatic pressure-maintaining pattern;
8) switch to circulation and just sending digging circulation, complete the switching that soil pressure boring mode switches to muddy water boring mode.
As the further improvement of technique scheme, in step 2) in, described machine internal bypass circulation is divided into circulation one machine internal bypass, the two machine internal bypass that circulate, circulate three machine internal bypass and circulation four machine internal bypass, the flow direction of described circulation one machine internal bypass is ground high-quality slurries → AV10 valve → send mud pipeline → AV3 valve → mud line → floor treatment, the flow direction of described circulation two machine internal bypass is ground high-quality slurries → AV10 valve → send mud pipeline → AV1 valve → AV5 valve → mud pipe → floor treatment, the flow direction of described circulation three machine internal bypass is ground high-quality slurries → AV10 valve → send mud pipeline → AV4 valve → AV2 valve → mud line → floor treatment, the flow direction of described circulation four machine internal bypass is ground high-quality slurries → AV10 valve → send mud pipeline → AV1 valve → MV3 valve → AV2 valve → mud line → floor treatment.
As the further improvement of technique scheme, in step 3), the viscosity toward the described mud of Tu Cang perfusion is not less than 22S, and its proportion is 1.13 ~ 1.16g/cm3.
As the further improvement of technique scheme, in step 3), the perfusion of described mud flows to as ground high-quality slurries → AV10 valve → send mud pipeline → CV1 valve → MV1 valve → Tu Cang.
As the further improvement of technique scheme, described in step 5), machine internal bypass circulation is ground high-quality slurries → AV10 valve → send mud pipeline → AV1 valve → MV3 valve → AV2 valve → mud line → floor treatment.
As the further improvement of technique scheme, in step 6), the described inverse flow direction sending circulation to bring down stocks is ground high-quality slurries → AV10 valve → send mud pipeline → AV4 valve → MV2 valve → Tu Cang → MV1 valve → AV5 valve → mud line → floor treatment.
As the further improvement of technique scheme, in step 6), start screw machine, by screw machine, the bulky grain stone in native storehouse is discharged.
As the further improvement of technique scheme, in step 7), the mud flow of described automatic pressure-maintaining pattern is ground high-quality slurries → AV10 valve → send mud pipeline → CV1 valve → MV1 valve → Tu Cang.
As the further improvement of technique scheme, in step 8), described circulation is just sending the flow direction of digging circulation to be ground high-quality slurries → AV10 valve → send mud pipeline → AV1 valve → MV1 valve → Tu Cang → MV2 valve → AV2 → mud line → floor treatment.
The invention has the beneficial effects as follows:
(1) without the need to any parts of dismounting, easily and fast, safety.
(2) after switching to muddy water boring mode, the conveying worm of shield machine self configuration can be used as getting rid of bulky grain rubble, compares, without crushing large particle, can not cause the blocking of mud channel with the quarrying case of traditional muddy water pattern shield machine configuration.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present invention, instead of whole embodiment, and those skilled in the art, under the prerequisite not paying creative work, can also obtain other design schemes and accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of a machine internal bypass of circulating in the present invention;
Fig. 2 is the schematic diagram of two machine internal bypass of circulating in the present invention;
Fig. 3 is the schematic diagram of three machine internal bypass of circulating in the present invention;
Fig. 4 is the schematic diagram of four machine internal bypass of circulating in the present invention;
The flow graph of mud when Fig. 5 is automatic pressure-maintaining pattern in the present invention;
Fig. 6 is the inverse schematic diagram sending circulation to bring down stocks in the present invention;
Fig. 7 is the schematic diagram that in the present invention, circulation is just sending digging circulation.
Detailed description of the invention
Be clearly and completely described below with reference to embodiment and the accompanying drawing technique effect to design of the present invention, concrete structure and generation, to understand object of the present invention, characteristic sum effect fully.Obviously; described embodiment is a part of embodiment of the present invention, instead of whole embodiment, based on embodiments of the invention; other embodiments that those skilled in the art obtains under the prerequisite not paying creative work, all belong to the scope of protection of the invention.In addition, all connection/annexations mentioned in literary composition, not singly refer to that component directly connects, and refer to and according to concrete performance, can connect auxiliary by adding or reducing, and form more excellent draw bail.
With reference to Fig. 1 ~ Fig. 7, shield machine switches to the method for muddy water boring mode by soil pressure boring mode, comprises the following steps,
1) close screw machine to be unearthed gate, rotate forward screw machine, make screw machine inside form effectively soil plug;
2) start Slurry treatment machine, open control valve group, starter motor internal bypass circulation;
3) recover interlocking, the hand sluice valve before the row's of opening mud valve, open automatic pressure-maintaining pattern, manually progressively open corresponding valve, filling mud in native storehouse 12;
4) start cutterhead, utilize native storehouse stirring rod, cutterhead stirs the soil body in storehouse;
5) switch to machine internal bypass circulation, slow rotation cutterhead, make stirring abundant;
6) standby internal bypass circulation normal after switch to and inversely send circulation to bring down stocks, native storehouse 12 and pipeline are cleaned;
7) after native storehouse 12 and pipeline are normal, switch to and just send circulation to bring down stocks, strengthen mud circulation, open automatic pressure-maintaining pattern;
8) switch to circulation and just sending digging circulation, complete the switching that soil pressure boring mode switches to muddy water boring mode.
Be further used as preferred embodiment, in step 2) in, described machine internal bypass circulation is divided into circulation one machine internal bypass, the two machine internal bypass that circulate, circulate three machine internal bypass and circulation four machine internal bypass, the flow direction of described circulation one machine internal bypass is ground high-quality slurries 1 → AV10 valve 2 → send mud pipeline → AV3 valve 3 → mud line → floor treatment, the flow direction of described circulation two machine internal bypass is ground high-quality slurries 1 → AV10 valve 2 → send mud pipeline → AV1 valve 4 → AV5 valve 7 → mud pipe → floor treatment, the flow direction of described circulation three machine internal bypass is ground high-quality slurries 1 → AV10 valve 2 → send mud pipeline → AV4 valve 5 → AV2 valve 6 → mud line → floor treatment, the flow direction of described circulation four machine internal bypass is ground high-quality slurries 1 → AV10 valve 2 → send mud pipeline → AV1 valve 4 → MV3 valve → AV2 valve 6 → mud line → floor treatment.
Be further used as preferred embodiment, in step 3), the viscosity of the described mud poured into toward native storehouse 12 is not less than 22S, and its proportion is 1.13 ~ 1.16g/cm3.
Be further used as preferred embodiment, in step 3), the perfusion of described mud flows to as ground high-quality slurries 1 → AV10 valve 2 → send mud pipeline → CV1 valve 8 → MV1 valve 10 → native storehouse 12.
Be further used as preferred embodiment, described in step 5), machine internal bypass circulation is ground high-quality slurries 1 → AV10 valve 2 → send mud pipeline → AV1 valve 4 → MV3 valve 9 → AV2 valve 6 → mud line → floor treatment.
Be further used as preferred embodiment, in step 6), the described inverse flow direction sending storehouse circulation to laundry is ground high-quality slurries 1 → AV10 valve 2 → send mud pipeline → AV4 valve 5 → MV2 valve 11 → native storehouse 12 → MV1 valve, 10 → AV5 valve, 7 → mud line → floor treatment.
Be further used as preferred embodiment, in step 6), start screw machine, by screw machine, the bulky grain stone in native storehouse 12 is discharged.
Be further used as preferred embodiment, in step 7), the mud flow of described automatic pressure-maintaining pattern is ground high-quality slurries 1 → AV10 valve 2 → send mud pipeline → CV1 valve 8 → MV1 valve 10 → native storehouse 12
Be further used as preferred embodiment, in step 8), described circulation is just sending the flow direction of digging circulation to be ground high-quality slurries 1 → AV10 valve 2 → send mud pipeline → AV1 valve 4 → MV1 valve 10 → native storehouse 12 → MV2 valve, 11 → AV2 valve, 6 → mud line → floor treatment.
It is below a preferred embodiment of the present invention.
(1) position switched for pattern is selected, preparation before switching.
Preparation comprises: 1. arrange regulating valve group, corollary equipment prepares; From ground, tunnel, shield machine all mud channels and element normally unobstructed.2. screw machine interlocking is removed; 3. mud modulation, meets instructions for use.
(2) close screw machine to be unearthed gate, rotate forward screw machine, make soil plug.
First by the suitably outer row of dregs in storehouse, remove interlocking and rotate forward screw machine when closedown screw machine is unearthed gate, make screw machine inside form effectively soil and fill in, keep pressure P ± 10KPa(P in native storehouse 12 to be current support pressure value).Screw machine rotating speed 1.2rpm, screw machine soil pressure (front) pressure P+40KPa, screw machine soil pressure (afterwards) pressure P+30KPa.
(3) start circulation, carry out bypass operation, guarantee the normal work of pipeline and mud disposal system, see accompanying drawing 1 ~ 4.The open and-shut mode of mud, spoil disposal, bypass valve is sent to show on the touchscreen.
Concrete operation method: start Slurry treatment machine, open control valve group, starts muddy water circulatory system.Mud flow:
Circulate a machine internal bypass: ground high-quality slurries 1 → AV10 valve 2 → send mud pipeline → AV3 valve 3 → mud line → floor treatment; All the other pipeline valve group closure states.
Circulate two machine internal bypass: ground high-quality slurries 1 → AV10 valve 2 → send mud pipeline → AV1 valve 4 → AV5 valve 7 → mud pipe → floor treatment; All the other pipeline valve group closure states.
Circulate three machine internal bypass: ground high-quality slurries 1 → AV10 valve 2 → send mud pipeline → AV4 valve 5 → AV2 valve 6 → mud line → floor treatment; All the other pipeline valve group closure states.
Circulate four machine internal bypass: ground high-quality slurries 1 → AV10 valve 2 → send mud pipeline → AV1 valve 4 → MV3 valve 9 → AV2 valve 6 → mud line → floor treatment; All the other pipeline valve group closure states.
(4) recover interlocking, the hand sluice valve before the row's of opening mud valve, open automatic pressure-maintaining pattern.Manually progressively open CV1 valve 8, mud of annotating toward native storehouse 12.See accompanying drawing 5, mud flow: ground high-quality slurries 1 → AV10 valve 2 → send mud pipeline → CV1 valve 8 → MV1 valve 10 → native storehouse 12;
Mud requires index: viscosity is not less than 22S(200ML funnel), proportion is about 1.15g/cm3.Control pressure P ± 10KPa in native storehouse 12, regulate by the suitable casting of screw machine.
(5) start cutterhead, utilize native storehouse stirring rod, cutterhead stirs the soil body in storehouse.Cutterhead slow rotation, 0.5rpm.Adjust otch hydraulic pressure to steady pressure by CV1 valve 8, and regulated by the suitable casting of screw machine.
Main points: when causing the soil pressure of excavation face to change because of the change of dregs filling state in the change of state of soil, screw machine casting efficiency and storehouse, the stable of excavation face soil pressure should be kept by increasing, subtracting screw machine rotating speed.Only by increase, subtract screw machine rotating speed can not tackle excavation face soil pressure change time, by soil pressure in automatic pressure-maintaining mode stable storehouse.
(6) close MV1 valve 10, MV2 valve 11, open MV3 valve 9, switch to circulation four machine internal bypass, slow rotation cutterhead, makes stirring abundant.Circulation opens form: ground high-quality slurries 1 → AV10 valve 2 → send mud pipeline → AV1 valve 4 → MV3 valve 9 → AV2 valve 6 → mud line → floor treatment; All the other pipeline valve group closure states.See accompanying drawing 4.
(7) standby internal bypass is normal, opens MV1, MV2 valve 11, closes MV3 valve 9.Selection is carried out inverse sending storehouse circulation to laundry, and circulation opens form: ground high-quality slurries 1 → AV10 valve 2 → send mud pipeline → AV4 valve 5 → MV2 valve 11 → native storehouse 12 → MV1 valve, 10 → AV5 valve, 7 → mud line → floor treatment; See accompanying drawing 6.
Against sending storehouse circulation main points to laundry:
1. circulation system also has inverse recurrent state, when blocking appears in the pipeline between machine internal bypass and machine internal bypass or in machine, blocking appears in the spoil disposal mouth of pipe, when cannot wash logical by normal bypass, can realize inverse recurrent state by bypass pipe, back flush pipeline removes blocking.Inverse storehouse circulation of sending to laundry is selected to be exactly to wash the mouth of pipe blocked by dregs under logical soil pressure boring mode or the pipeline blocked by block stone.
2. cutterhead rotating speed 0.5rpm, against sending storehouse circulation to laundry, when pressure increase in storehouse appears negative pressure early warning value, in spoil disposal stock pump P2 pump.Now, VE valve 13 releasing pressure automatically, returns machine internal bypass.See accompanying drawing 1.
3. standby internal bypass is normal, is switched to above-mentioned (6), (7), recovers inverse and sends storehouse circulation to laundry.Send storehouse to until inverse, spoil disposal flow reaches and normally tunnels flow value.
If the block stone that 3. particle is larger, cannot be arranged outward by pipeline, screw machine can be adopted and be arranged on the P0 pump on double mode shield machine, be discharged by screw machine.
The principle one of screw machine row stone: adopt P0 pump, pipeline passes from the centre bore near base bearing, increases native storehouse 12 Inner eycle flow, circular flow is larger, be deposited in (soil-discharging port) native slag bottom native storehouse 12 sooner by the unearthed storehouse 12 of band, to help to discharge dregs smoothly, effectively prevent blocking.
The principle two of screw machine row stone: screw machine plays the effect of similar quarrying case.Utilize flexible screw machine, pound the door before closedown, carry out row's bulky grain dregs.
(8) the inverse circulation that send is brought down stocks normally, switches to and just send circulation to bring down stocks, strengthen mud circulation, see accompanying drawing 1.If now negative pressure early warning value appears in P2 pump, return machine internal bypass.May be now the blocking of plasma discharge mouth or pipeline blockage: first check and judge blocking position, if the native slag (or block stone) be deposited in bottom native storehouse 12 results in blockage, then can take (7).Again carry out bypass and wash pipe, the slag stone in pipeline is arranged outward, until just sending digging pattern normal as far as possible.
(9) close MV2 valve 11, open automatic pressure-maintaining pattern, switch muddy water boring mode and complete.See accompanying drawing 5, mud flow: ground high-quality slurries 1 → AV10 valve 2 → send mud pipeline → CV1 valve 8 → MV1 valve 10 → native storehouse 12.
(10) circulation is just sending digging circulation, sees accompanying drawing 7, mud flow: ground high-quality slurries 1 → AV10 valve 2 → send mud pipeline → AV1 valve 4 → MV1 valve 10 → native storehouse 12 → MV2 valve, 11 → AV2 valve, 6 → mud line → floor treatment.
(11) normal muddy water boring mode
For ensureing the continuity and the shortening handoff procedure that switch operation, can adopt and complete in the effective drilling depth of an endless tube sheet (sections of jurisdiction for 1.5 meters or 1.2 meters wide cuts), the operation avoiding pipe sheet assembling to bring is interrupted, and also has, regulated and management means by control system, effectively control ground settlement.
More than that better embodiment of the present invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (9)
1. shield machine is switched to the method for muddy water boring mode by soil pressure boring mode, it is characterized in that: comprise the following steps,
1) close screw machine to be unearthed gate, rotate forward screw machine, make screw machine inside form effectively soil plug;
2) start Slurry treatment machine, open control valve group, starter motor internal bypass circulation;
3) recover interlocking, the hand sluice valve before the row's of opening mud valve, open automatic pressure-maintaining pattern, progressively open corresponding valve, filling mud in native storehouse;
4) start cutterhead, utilize native storehouse stirring rod, cutterhead stirs the soil body in storehouse;
5) switch to machine internal bypass circulation, slow rotation cutterhead, make stirring abundant;
6) standby internal bypass circulation normal after switch to and inversely send circulation to bring down stocks, Tu Cang and pipeline are cleaned;
7) after Tu Cang and pipeline are normal, switch to and just send circulation to bring down stocks, strengthen mud circulation, open automatic pressure-maintaining pattern;
8) switch to circulation and just sending digging circulation, complete the switching that soil pressure boring mode switches to muddy water boring mode.
2. shield machine according to claim 1 is switched to the method for muddy water boring mode by soil pressure boring mode, it is characterized in that: in step 2) in, described machine internal bypass circulation is divided into circulation one machine internal bypass, the two machine internal bypass that circulate, circulate three machine internal bypass and circulation four machine internal bypass, the flow direction of described circulation one machine internal bypass is ground high-quality slurries → AV10 valve → send mud pipeline → AV3 valve → mud line → floor treatment, the flow direction of described circulation two machine internal bypass is ground high-quality slurries → AV10 valve → send mud pipeline → AV1 valve → AV5 valve → mud pipe → floor treatment, the flow direction of described circulation three machine internal bypass is ground high-quality slurries → AV10 valve → send mud pipeline → AV4 valve → AV2 valve → mud line → floor treatment, the flow direction of described circulation four machine internal bypass is ground high-quality slurries → AV10 valve → send mud pipeline → AV1 valve → MV3 valve → AV2 valve → mud line → floor treatment.
3. shield machine according to claim 1 is switched to the method for muddy water boring mode by soil pressure boring mode, it is characterized in that: in step 3), and the viscosity toward the described mud of Tu Cang perfusion is not less than 22S, and its proportion is 1.13 ~ 1.16g/cm3.
4. shield machine according to claim 1 is switched to the method for muddy water boring mode by soil pressure boring mode, it is characterized in that: in step 3), the perfusion of described mud flows to as ground high-quality slurries → AV10 valve → send mud pipeline → CV1 valve → MV1 valve → Tu Cang.
5. shield machine according to claim 1 is switched to the method for muddy water boring mode by soil pressure boring mode, it is characterized in that: described in step 5), machine internal bypass circulation is ground high-quality slurries → AV10 valve → send mud pipeline → AV1 valve → MV3 valve → AV2 valve → mud line → floor treatment.
6. shield machine according to claim 1 is switched to the method for muddy water boring mode by soil pressure boring mode, it is characterized in that: in step 6), the described inverse flow direction sending circulation to bring down stocks is ground high-quality slurries → AV10 valve → send mud pipeline → AV4 valve → MV2 valve → Tu Cang → MV1 valve → AV5 valve → mud line → floor treatment.
7. shield machine according to claim 1 is switched to the method for muddy water boring mode by soil pressure boring mode, it is characterized in that: in step 6), starts screw machine, is discharged by the bulky grain stone in native storehouse by screw machine.
8. shield machine according to claim 1 is switched to the method for muddy water boring mode by soil pressure boring mode, it is characterized in that: in step 7), the mud flow of described automatic pressure-maintaining pattern is ground high-quality slurries → AV10 valve → send mud pipeline → CV1 valve → MV1 valve → Tu Cang.
9. shield machine according to claim 1 is switched to the method for muddy water boring mode by soil pressure boring mode, it is characterized in that: in step 8), described circulation is just sending the flow direction of digging circulation to be ground high-quality slurries → AV10 valve → send mud pipeline → AV1 valve → MV1 valve → Tu Cang → MV2 valve → AV2 valve → mud line → floor treatment.
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| CN201510091383.2A CN104790962B (en) | 2015-02-28 | 2015-02-28 | Method of switching earth pressure tunneling mode into muddy water tunneling mode for shield tunneling machine |
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| CN201510091383.2A CN104790962B (en) | 2015-02-28 | 2015-02-28 | Method of switching earth pressure tunneling mode into muddy water tunneling mode for shield tunneling machine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150516A (en) * | 2016-08-30 | 2016-11-23 | 中国铁建重工集团有限公司 | Quarrying apparatus and control method, development machine |
| CN107576477A (en) * | 2017-09-28 | 2018-01-12 | 中铁隧道局集团有限公司 | Slurry shield machine circulation system experimental rig and coordinative experiments method |
| CN109630149A (en) * | 2018-12-21 | 2019-04-16 | 广州轨道交通建设监理有限公司 | A kind of multi-mode shield machine |
| CN111219194A (en) * | 2020-03-20 | 2020-06-02 | 中铁隧道局集团有限公司 | Slurry/soil pressure dual-mode shield and tunneling mode conversion method thereof |
| CN112761650A (en) * | 2020-12-31 | 2021-05-07 | 中铁工程服务有限公司 | Dual-mode shield muck treatment method |
| CN112780289A (en) * | 2020-12-31 | 2021-05-11 | 中铁工程服务有限公司 | Dual-mode shield muck treatment system |
| CN114165246A (en) * | 2021-12-08 | 2022-03-11 | 北京市市政四建设工程有限责任公司 | Muddy water pipeline for muddy water-soil pressure dual-mode shield tunneling machine and using method |
| CN115788461A (en) * | 2022-12-16 | 2023-03-14 | 盾科工程装备有限公司 | Muddy water suction type shield machine |
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| CN106150516A (en) * | 2016-08-30 | 2016-11-23 | 中国铁建重工集团有限公司 | Quarrying apparatus and control method, development machine |
| CN107576477A (en) * | 2017-09-28 | 2018-01-12 | 中铁隧道局集团有限公司 | Slurry shield machine circulation system experimental rig and coordinative experiments method |
| CN107576477B (en) * | 2017-09-28 | 2024-05-07 | 中铁隧道局集团有限公司 | Slurry shield machine circulation system test device and matched test method |
| CN109630149A (en) * | 2018-12-21 | 2019-04-16 | 广州轨道交通建设监理有限公司 | A kind of multi-mode shield machine |
| CN111219194A (en) * | 2020-03-20 | 2020-06-02 | 中铁隧道局集团有限公司 | Slurry/soil pressure dual-mode shield and tunneling mode conversion method thereof |
| CN111219194B (en) * | 2020-03-20 | 2021-07-27 | 中铁隧道局集团有限公司 | Slurry/soil pressure dual-mode shield and tunneling mode conversion method thereof |
| CN112761650A (en) * | 2020-12-31 | 2021-05-07 | 中铁工程服务有限公司 | Dual-mode shield muck treatment method |
| CN112780289A (en) * | 2020-12-31 | 2021-05-11 | 中铁工程服务有限公司 | Dual-mode shield muck treatment system |
| CN112761650B (en) * | 2020-12-31 | 2022-07-15 | 中铁工程服务有限公司 | Double-mode shield muck treatment method |
| CN114165246A (en) * | 2021-12-08 | 2022-03-11 | 北京市市政四建设工程有限责任公司 | Muddy water pipeline for muddy water-soil pressure dual-mode shield tunneling machine and using method |
| CN115788461A (en) * | 2022-12-16 | 2023-03-14 | 盾科工程装备有限公司 | Muddy water suction type shield machine |
| CN115788461B (en) * | 2022-12-16 | 2023-08-04 | 盾科工程装备有限公司 | Slurry suction type shield tunneling machine |
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Effective date of registration: 20180615 Address after: 528308 Lun Jiao Street office, Shunde District, Foshan, Guangdong, often teaches the first floor of E block 129229, Zhenxing Road, neighborhood committee. Patentee after: China Railway Hua tunnel joint heavy equipment Co., Ltd. Address before: 510620 9, Xingye Bank building, 101 Tianhe Road, Tianhe District, Guangzhou, Guangdong. Patentee before: China Tunnel Construction Co., Ltd. Guangdong |