CN106223965A - Shield machine and control method thereof - Google Patents
Shield machine and control method thereof Download PDFInfo
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- CN106223965A CN106223965A CN201610770938.0A CN201610770938A CN106223965A CN 106223965 A CN106223965 A CN 106223965A CN 201610770938 A CN201610770938 A CN 201610770938A CN 106223965 A CN106223965 A CN 106223965A
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- Prior art keywords
- pipe
- plasma discharge
- shield machine
- circulation
- pulp
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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 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
Abstract
The invention discloses a kind of shield machine and control method thereof, wherein shield machine includes: cutterhead；Tu Cang, Tu Cang are located at the rear side of cutterhead；Pulp-inlet pipe, the slurry outlet of entering of pulp-inlet pipe connects with Tu Cang and is positioned at the top of Tu Cang；Discharge pipe, the plasma discharge import of discharge pipe connects with Tu Cang and is positioned at the bottom of Tu Cang；Conveying worm, the input of conveying worm stretches in soil storehouse to be transported to outside Tu Cang by the earth in native storehouse, and input is positioned at the lower section of plasma discharge import；Plasma discharge arm, one end of plasma discharge arm connects with the outfan of conveying worm, and the other end connects with discharge pipe；And belt conveyor, one end of belt conveyor is positioned at the position of the outfan of conveying worm.According to the shield machine of the present invention, the heavy collection of dregs bottom soil storehouse can be avoided, it is impossible to drain, cause the situation of stagnant row.
Description
Technical field
The present invention relates to constructing tunnel equipment technology field, especially relate to a kind of shield machine and control method thereof.
Background technology
The generally type of shield machine adapts with geological conditions, for long distance construction, particularly passes through geology feelings
Condition change stratum greatly, monotype shield machine has significant limitation.In correlation technique, the double mode shield of muddy water soil pressure of use
Machine is all the mode using conveying worm and mud channel to coexist, and when shield machine is at soil pressure MODE of operation, enters, discharge pipe
Road is closed, and uses conveying worm deslagging, and when at muddy water MODE of operation, conveying worm quits work, and uses discharge pipe
Road deslagging.Particularly when being converted into the construction of muddy water pattern, owing to conveying worm is usually placed in bottom shield body, such plasma discharge
Pipeline is only capable of being arranged in shield body lower section, is difficult to discharge the slag liquid bottom excavation storehouse, and due to the restriction of space layout, it is impossible to
Bottom install lithotrite, during for running into the stratum containing ratchel, even cannot deslagging, have impact on efficiency of construction.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the present invention carries
Go out a kind of shield machine, the advantage that described shield machine has residue-discharge convenience.
The present invention also proposes the control method of a kind of shield machine, and the control method of described shield machine is applicable to above-mentioned shield
Machine.
Shield machine according to embodiments of the present invention, including: cutterhead；Tu Cang, described Tu Cang are located at the rear side of described cutterhead；Enter
Slurry pipe, the slurry outlet of entering of described pulp-inlet pipe connects with described Tu Cang and is positioned at the top of described Tu Cang；Discharge pipe, described discharge pipe
Plasma discharge import connect with described Tu Cang and be positioned at the bottom of described Tu Cang；Conveying worm, the input of described conveying worm
End stretches in described soil storehouse to be transported to outside described Tu Cang by the earth in described native storehouse, and described input is positioned at described plasma discharge
The lower section of import；Plasma discharge arm, one end of described plasma discharge arm connects with the outfan of described conveying worm, the other end and institute
State discharge pipe connection；And belt conveyor, one end of described belt conveyor is positioned at the described outfan of described conveying worm
Position.
Shield machine according to embodiments of the present invention, by arranging plasma discharge arm, and plasma discharge at the outfan of conveying worm
One end of arm connects with the outfan of conveying worm, and the other end connects with discharge pipe, when shield machine is in muddy water pattern, and
Bottom soil storehouse during a large amount of dregs of heavy collection, conveying worm can be opened, make the dregs bottom soil storehouse by conveying worm and row
Slurry arm is discharged in discharge pipe, is pumped on ground by dregs finally by slurry pump, can avoid the heavy collection of dregs bottom soil storehouse,
Cannot drain, cause the situation of stagnant row.Simultaneously when running into the stratum containing ratchel, it is also possible to by stone and the mud of big particle diameter
Slurry is discharged by belt conveyor and plasma discharge arm respectively, it is to avoid the heavy collection of stone bottom soil storehouse, it is impossible to drain, cause the feelings of stagnant row
Condition.It addition, under soil pressure pattern, and when running into water rich strata, can by conveying worm by dregs by plasma discharge arm and
Discharge pipe is delivered to ground, prevents the situation that conveying worm is gushed.
According to some embodiments of the present invention, described plasma discharge arm is provided with arm control valve.
According to some embodiments of the present invention, also include: quarrying case, described quarrying case is located on described discharge pipe and described
The entrance point of quarrying case connects with described plasma discharge arm.
In some embodiments of the invention, also including: first against circulation pipe, described first against one end of circulation pipe and institute
Stating pulp-inlet pipe connection, the other end connects with the port of export of described quarrying case；Second against circulation pipe, and described second against the one of circulation pipe
End connects with described pulp-inlet pipe and described second is positioned at described first against one end of circulation pipe against the close institute of one end of circulation pipe
Stating the side into slurry outlet, the other end connects with the port of export of described quarrying case, and described second against the other end position of circulation pipe
In described first against the side away from described plasma discharge import of the other end of circulation pipe；First against circulation control valve, and described first
Inverse circulation control valve is located at described first against controlling described first on circulation pipe against the break-make of circulation pipe；Second against loop control
Valve, described second is located at described second against controlling described second on circulation pipe against the break-make of circulation pipe against circulation control valve；First
Plasma discharge control valve, described first plasma discharge control valve is located at described first against described one end and described second of circulation pipe against circulation pipe
Described one end between；With the second plasma discharge control valve, described second plasma discharge control valve is located at described first against described in circulation pipe
The other end and described second is against between the described other end of circulation pipe.
In some embodiments of the invention, also including: bypass pipe, one end of described bypass pipe is with described pulp-inlet pipe even
Logical, the other end connects with described discharge pipe.
In some embodiments of the invention, one end of described bypass pipe be positioned at described first plasma discharge control valve and described enter
Slurry pipe enter between slurry inlet, the other end of described bypass pipe is positioned at described second plasma discharge control valve and the plasma discharge of described discharge pipe
Between outlet.
In some embodiments of the invention, it is provided with defecator in described quarrying case.
According to some embodiments of the present invention, also including: the 3rd plasma discharge control valve, described 3rd plasma discharge control valve is located at institute
State between the other end of plasma discharge import and described plasma discharge arm.
According to some embodiments of the present invention, one end of described plasma discharge arm is near the outfan of described conveying worm.
In some embodiments of the invention, one end of described plasma discharge arm connects with the lower section of described outfan.
The control method of shield machine according to embodiments of the present invention, described shield machine is above-mentioned shield machine, described shield
Machine also includes that bypass pipe, one end of described bypass pipe connect with described pulp-inlet pipe, and the other end connects with described discharge pipe, described shield
Structure machine also includes first against circulation pipe and second against circulation pipe, and described first connects against one end of circulation pipe with described pulp-inlet pipe,
The other end connects with described discharge pipe, and described second connects with described pulp-inlet pipe and the described second inverse circulation against one end of circulation pipe
One end of pipe be positioned at described first against circulation pipe one end near described in enter the side of slurry outlet, the other end and discharge pipe are even
Logical, and described second against the other end of circulation pipe be positioned at described first against circulation pipe the other end away from described plasma discharge import
Side, described shield machine includes soil pressure pattern and muddy water pattern,
When described shield machine by described soil pressure pattern to described muddy water patten transformation time, described control method includes:
S10: described shield machine stops driving, closes the ash gate of the outfan of described conveying worm, makes described spiral
Conveyer is internally formed soil plug；
S20: described shield machine bypass mode of operation, mud is entered into after described bypass pipe through described row by described pulp-inlet pipe
Slurry bank of tubes goes out, it is ensured that mud channel is unobstructed normally；
S30: use pressurize pattern to add mud toward described Tu Cang, close described bypass pipe, described mud is entered to starch by described
Pipe enters in described soil storehouse, is controlled the pressure balance of described Tu Cang by the operation of gas pressure-retaining system；
S40: after described Tu Cang is full of mud, is switched to inverse circulation pattern, and described mud is entered into institute by described pulp-inlet pipe
State first against in circulation pipe, then flow in described discharge pipe, finally enter in described soil storehouse, when being full of described mud in described soil storehouse
During slurry, described mud through described pulp-inlet pipe, described second be drained into described discharge pipe against circulation pipe in and discharge, by described soil
In storehouse, dregs rinses repeatedly, makes the described cutterhead slow-speed of revolution operate to be stirred dregs simultaneously, opens releasing pressure automatically simultaneously
Valve regulates described support pressure；
S50: after described inverse circulation pattern energy stable operation a period of time, then switch to boring mode and normally dig
Entering, described mud is entered in described soil storehouse by described pulp-inlet pipe, and is discharged by described mud through described discharge pipe；
When described shield machine by described muddy water pattern to described soil pressure patten transformation time, described control method includes:
T10: described cutterhead rotating speed is reduced to below 0.5rpm, fltting speed is less than 15mm/min, enters slurry described in closedown
The stock pump that enters on pipe stops slurry conveyed, carries out plasma discharge with described inverse circulation pattern, by described discharge pipe during plasma discharge
The cooperation of slurry pump plasma discharge flow and described fltting speed balances described support pressure；
T20: the soil body that described knife cutting gets off enters described Tu Cang, and deposits to bottom, and the described soil body slowly rises,
When described cutter head torque significantly increases, whether the gate valve at detection dividing plate blocks, and detection position is from low to high, it is ensured that this position
Described gate valve completely plugged after detect whether the next one blocks again, until the described gate valve of highest point also occurs completely plugged existing
As；
T30: described cutterhead stops the rotation, described shield machine stops advancing, continues with inverse circulation pattern plasma discharge, open simultaneously
Automatic pressure-maintaining system balance described support pressure, until after negative pressure occurs in described slurry pump, closing described slurry pump, by described every
Gate valve described at plate is closed.
T40: opening the described ash gate of described conveying worm, aperture is not more than 20%, starts described cutterhead, described shield
Structure machine starts to advance, and starts the operation of described soil pressure pattern, and the soil body in described soil storehouse is by described conveying worm and described
Belt conveyor is delivered to ground.
Accompanying drawing explanation
Fig. 1 is the structural representation of shield machine according to embodiments of the present invention；
Fig. 2 is the structural representation of the Tu Cang of shield machine according to embodiments of the present invention.
Reference:
Shield machine 100,
Cutterhead 1, soil storehouse 2, dividing plate 21,
Pulp-inlet pipe 3, enters to starch outlet 31, enters stock pump 32, enters slurry inlet 33,
Discharge pipe 4, plasma discharge import 41, case 42 of quarrying, entrance point 421, the port of export 422, the second plasma discharge control valve
43, the 3rd plasma discharge control valve 44, slurry pump 45, plasma discharge arm 46, arm control valve 461, plasma discharge outlet 47,
Conveying worm 5, input 51, outfan 52,
Bypass pipe 6, one end 61 of bypass pipe, the other end 62 of bypass pipe, bypass valve 63,
First against circulation pipe 7, and first against one end 71 of circulation pipe, and first against the other end 72 of circulation pipe, and first inverse follows
Ring control valve 73,
Second against circulation pipe 8, and second against one end 81 of circulation pipe, and second against the other end 82 of circulation pipe, and second inverse follows
Ring control valve 83,
Belt conveyor 9.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings.Below with reference to
The embodiment that accompanying drawing describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
Below with reference to Fig. 1 and Fig. 2, shield machine 100 according to embodiments of the present invention is described.
As depicted in figs. 1 and 2, shield machine 100 according to embodiments of the present invention, including cutterhead 1, soil storehouse 2, pulp-inlet pipe 3, row
Slurry pipe 4, conveying worm 5, plasma discharge arm 46 and belt conveyor 9.
Specifically, soil storehouse 2 is located at the rear side (rear side as shown in Figure 1) of cutterhead 1, and the slurry that enters of pulp-inlet pipe 3 exports 31 with native
Storehouse 2 connects and is positioned at the top (top as shown in Figure 1) in soil storehouse 2, and the plasma discharge import 41 of discharge pipe 4 connects and position with soil storehouse 2
In the bottom (bottom as shown in Figure 1) in soil storehouse 2, it is interior with by soil storehouse 2 that the input 51 of conveying worm 5 stretches to soil storehouse 2
Earth be transported to soil storehouse 2 outside, input 51 is positioned at the lower section (lower section as shown in Figure 1) of plasma discharge import 41, plasma discharge arm 46
One end (upper end as described in Figure 1) connect with the outfan 52 of conveying worm 5, the other end (lower end as shown in Figure 1) with
Discharge pipe 4 connects, and one end (front end as shown in Figure 1) of belt conveyor 9 is positioned at the position of the outfan 52 of conveying worm 5
Place.
During soil pressure pattern, cutterhead 1 cuts soil layer, and the dregs cut is fallen in soil storehouse 2, then will by conveying worm 5
Dregs is delivered on belt conveyor 9, then be transported to slag-soil truck be transported to outside hole process.During muddy water pattern, enter stock pump 32 pass through into
Slurry pipe 3 is by slurry transportation to soil storehouse 2, and mud penetrates in excavation soil layer, and cutterhead 1 cuts soil layer, and the dregs cut falls
Bury in storehouse 2, then be pumped on ground by discharge pipe 4 by slurry pump 45.Because the plasma discharge import 41 of discharge pipe 4 need to avoid bottom
The input 51 of conveying worm 5, therefore plasma discharge import 41 position is higher, easily causes heavy collection dregs under soil storehouse 2, it is impossible to
Drain, the situation of stagnant row occurs.At this point it is possible to rotate conveying worm 5, the dregs of heavy collection bottom soil storehouse 2 is delivered to output
End 52, then dregs is pumped on ground by plasma discharge by plasma discharge arm 46.Meanwhile, when running into the stratum containing ratchel,
Bigger stone can be exported to ground by belt conveyor 9, and dregs and mud etc. can be arrived by plasma discharge arm 46 output
Discharge pipe 4, then export to ground.
Meanwhile, when shield machine 100 uses soil pressure pattern, and when running into water rich strata, conveying worm 5 is difficult to form soil
Plug, easily there is situation about gushing in conveying worm 5, at this point it is possible to by the dregs in conveying worm 5 by plasma discharge arm 46
It is discharged in discharge pipe 4, and is expelled to ground by slurry pump 45.
Shield machine 100 according to embodiments of the present invention, arranges plasma discharge arm by the outfan 52 at conveying worm 5
46, and one end (upper end as shown in Figure 1) of plasma discharge arm 46 connects with the outfan 52 of conveying worm 5, the other end is (such as figure
Lower end shown in 1) connect with discharge pipe 4, when shield machine 100 is in muddy water pattern, and bottom soil storehouse 2 during a large amount of dregs of heavy collection,
Conveying worm 5 can be opened, make the dregs bottom soil storehouse 2 be discharged to discharge pipe 4 by conveying worm 5 and plasma discharge arm 46
In, finally by slurry pump 45, dregs is pumped on ground, the heavy collection of dregs bottom soil storehouse 2 can be avoided, it is impossible to drain, cause
The situation of stagnant row.Simultaneously when running into the stratum containing ratchel, it is also possible to stone and the mud of big particle diameter are passed through skin respectively
Belt conveyor 9 and plasma discharge arm 46 are discharged, it is to avoid the heavy collection of stone bottom soil storehouse 2, it is impossible to drain, cause the situation of stagnant row.It addition,
Under soil pressure pattern, and when running into water rich strata, by conveying worm 5, dregs can be passed through plasma discharge arm 46 and discharge pipe
4 are delivered to ground, prevent the situation that conveying worm 5 is gushed.
In some embodiments of the invention, as it is shown in figure 1, plasma discharge arm 46 is provided with arm control valve 461.Thus,
When shield machine 100 is in soil pressure pattern, arm control valve 461 can be closed, stifled in preventing dregs from entering plasma discharge arm 46
Plug plasma discharge arm 46 and when causing shield machine 100 to be become muddy water pattern by soil pressure patten transformation plasma discharge arm 46 cannot plasma discharge, thus
Ensure the reliability of shield machine 100 work.
In some embodiments of the invention, as it is shown in figure 1, shield machine 100 also includes that case 42 of quarrying, quarrying case 42 are located at
On discharge pipe 4 and quarrying case 42 entrance point 421 connect with plasma discharge arm 46.Quarrying case 42 can will be greater than slurry pump 45 to be passed through
The stone of particle diameter sinks to the bottom, and prevents from blocking slurry pump 45, thus ensures the reliability that shield machine 100 works.
In some embodiments of the invention, being provided with defecator in quarrying case 42, thus, defecator can be by big grain
The stone in footpath filters out, and prevents the stone blocking slurry pump 45 of big particle diameter, thus ensures the properly functioning of shield machine 100, improves
The reliability of shield machine 100 work.
Further, as it is shown in figure 1, shield machine 100 also includes that first is inverse against circulation pipe 7, second against circulation pipe 8, first
Circulation control valve 73, second is against circulation control valve the 83, first plasma discharge control valve and the second plasma discharge control valve 43.Specifically, first
One end 71 of inverse circulation pipe 7 connects with pulp-inlet pipe 3, and the other end 72 connects with the port of export 422 of quarrying case 42；Second against circulation pipe
One end 81 of 8 connects with pulp-inlet pipe 3 and second is positioned at first against one end 81 of circulation pipe 8 against one end 71 close of circulation pipe 7
Entering the side of slurry outlet 31, the other end 82 connects with the port of export 422 of case 42 of quarrying, and second against the other end 82 of circulation pipe 8
It is positioned at first against the side away from plasma discharge import 41 of the other end 72 of circulation pipe 7；First is located at first against circulation control valve 73
On inverse circulation pipe 7, control first is against the break-make of circulation pipe 7, and second is located at second against circulation control valve 83 controls on circulation pipe 8
Second against the break-make of circulation pipe 8；First plasma discharge control valve is located at first against one end 71 and second of circulation pipe 7 against circulation pipe 8
Between one end 81, the second plasma discharge control valve 43 is located at first against the other end 72 of circulation pipe 7 and second against the other end of circulation pipe 8
Between 82.
When shield machine 100 carries out inverse circulation pattern, the first plasma discharge control valve and the second plasma discharge control valve 43 can be closed,
First can open against circulation control valve 73 and second against circulation control valve 83, enters stock pump 32 by mud pumping to pulp-inlet pipe 3,
And flow in discharge pipe 4 by first against circulation pipe 7, and then flow in soil storehouse 2, when the mud in soil storehouse 2 reaches a certain amount of,
Mud flows to second against in circulation pipe 8, discharge finally by slurry pump 45 by pulp-inlet pipe 3.The inverse circulation pattern of shield machine 100
Soil storehouse 2 and pipeline can be made sufficiently to clean.
Further, as it is shown in figure 1, shield machine 100 also includes bypass pipe 6, one end 61 and the pulp-inlet pipe 3 of bypass pipe 6
Connection, the other end 62 connects with discharge pipe 4.Bypass pipe 6 can stablize mud stream when the various boring mode of shield machine 100 switches
Amount, or use when segment assembly, it is not necessary to stop muddy water circulation system, enters stock pump 32 by mud pumping to pulp-inlet pipe 3, so
In rear inflow bypass pipe 6, then in bypass pipe 6, flow to discharge pipe 4, discharged by slurry pump 45.
Specifically, as it is shown in figure 1, one end 61 of bypass pipe 6 be positioned at the first plasma discharge control valve and pulp-inlet pipe 3 enter slurry inlet
Between 33, the other end 62 exports between 47 in the plasma discharge of the second plasma discharge control valve 43 and discharge pipe 4.Thus, when shield machine 100
When carrying out bypass mode, the first plasma discharge control valve, the second plasma discharge control valve 43, first can be closed against circulation control valve 73 and
Two against circulation control valve 83, now, enters stock pump 32 and is pumped to the mud in pulp-inlet pipe 3 and all flows to discharge pipe by bypass pipe 6
4, and it is pumped to ground by slurry pump 45, mud can be avoided to enter in soil storehouse 2, consequently facilitating shield machine 100 stablizes mud
Flow.
In some embodiments of the invention, as it is shown in figure 1, shield machine 100 also includes the 3rd plasma discharge control valve 44, the 3rd
Plasma discharge control valve 44 is located between the other end (lower end as shown in Figure 1) of plasma discharge import 41 and plasma discharge arm 46, works as shield machine
100 in muddy water pattern, and unlatching conveying worm 5 is discharged when sinking the dregs collected bottom soil storehouse 2, can be by the 3rd plasma discharge control valve
44 close, and arm control valve 461 are opened, and bottom soil storehouse 2, the dregs of heavy collection passes through conveying worm 5 output to conveying worm
The outfan 52 of 5, is then discharged in discharge pipe 4 by plasma discharge arm 46, and by slurry pump 45, dregs is pumped to ground
On.During being possible to prevent plasma discharge, mud dregs etc. is by being back to after plasma discharge arm 46 in soil storehouse 2 again, thus improves row
The efficiency of slurry.
In some embodiments of the invention, one end (upper end as shown in Figure 1) of plasma discharge arm 46 is near helical feed
The outfan 52 of machine 5.Thus, it is possible to the mud in conveying worm 5 is all discharged by plasma discharge arm 46.Further,
As it is shown in figure 1, one end of plasma discharge arm 46 (upper end as shown in Figure 1) connects with the lower section of outfan 52, thus, helical feed
Mud and dregs in machine 5 all can be transported in discharge pipe 4 by plasma discharge arm 46, and pumped by dregs by slurry pump 45
To ground.
Control method below with reference to Fig. 1 and Fig. 2 description shield machine 100 according to embodiments of the present invention.Wherein, shield machine
100 include soil pressure pattern and two kinds of mode of operations of muddy water pattern.
Shield machine 100 also includes bypass pipe 6, and one end 61 of bypass pipe 6 connects with pulp-inlet pipe 3, the other end 62 and discharge pipe 4
Connection, shield machine 100 also includes first against circulation pipe 7 and second against circulation pipe 8, first against circulation pipe 7 one end 71 with enter slurry
Pipe 3 connects, and the other end 72 connects with discharge pipe 4, and second connects with pulp-inlet pipe 3 and the second inverse circulation against one end 81 of circulation pipe 8
One end 81 of pipe 8 be positioned at first against circulation pipe 7 one end 71 near entering the side of slurry outlet 31, the other end 82 and discharge pipe 4
Connection, and second against the other end 82 of circulation pipe 8 be positioned at first against circulation pipe 7 the other end 72 away from the one of plasma discharge import 41
Side,
When shield machine 100 by soil pressure pattern to muddy water patten transformation time, control method includes:
S10: shield machine 100 stops driving, closes the ash gate of the outfan 52 of conveying worm 5, makes conveying worm 5
It is internally formed soil plug；
S20: shield machine 100 bypass mode of operation, mud discharges through discharge pipe 4 after being entered into bypass pipe 6 by pulp-inlet pipe 3,
Ensure that mud channel is unobstructed normally；
S30: using pressurize pattern to add mud toward soil storehouse 2, close bypass pipe 6, mud is entered into soil storehouse 2 by pulp-inlet pipe 3
In, the pressure balance in soil storehouse 2 is controlled by the operation of gas pressure-retaining system；
S40: after soil storehouse 2 is full of mud, is switched to inverse circulation pattern, and mud is entered into first against circulation pipe 7 by pulp-inlet pipe 3
In, then flow in discharge pipe 4, finally enter in soil storehouse 2, when being full of mud in soil storehouse 2, mud is inverse through pulp-inlet pipe 3, second
In circulation pipe 8 is drained into discharge pipe 4 and discharge, dregs in soil storehouse 2 is rinsed repeatedly, makes cutterhead 1 slow-speed of revolution operate simultaneously
To be stirred dregs, open automatic decompression valve simultaneously and regulate soil storehouse 2 pressure；
S50: after inverse circulation pattern energy stable operation a period of time, then switch to boring mode and normally tunnel, mud
Starch and entered in soil storehouse 2 by pulp-inlet pipe 3, and through discharge pipe 4, mud is discharged；
When shield machine 100 by muddy water pattern to soil pressure patten transformation time, control method includes:
T10: cutterhead 1 rotating speed is reduced to below 0.5rpm, fltting speed is less than 15mm/min, closes on pulp-inlet pipe 3
Enter stock pump 32 and stop slurry conveyed, carry out plasma discharge with inverse circulation pattern, by slurry pump 45 plasma discharge on discharge pipe 4 during plasma discharge
The cooperation of flow and fltting speed balances soil storehouse 2 pressure；
The soil body that T20: cutterhead 1 cuts enters soil storehouse 2, and deposits to bottom, and the soil body slowly rises, when cutterhead 1 is turned round
When square significantly increases, whether the gate valve at detection dividing plate 21 blocks, and detection position is from low to high, it is ensured that the gate valve of this position is complete
Detect whether the next one blocks again after blocking, until completely plugged phenomenon also occurs in the gate valve of highest point；
It should be noted that after the gate valve of this position is blocked, illustrate that the mud of this position has been drained off.
T30: cutterhead 1 stops the rotation, and shield machine 100 stops advancing, and continues with inverse circulation pattern plasma discharge, opens automatically simultaneously
Pressure-retaining system balance soil storehouse 2 pressure, until after negative pressure occurs in slurry pump 45, closing slurry pump 45 and pulp-inlet pipe 3 and discharge pipe 4
On all control valves, gate valve at dividing plate is closed.
T40: open the ash gate of conveying worm 5, aperture is not more than 20%, starts cutterhead 1, and shield machine 100 starts to push away
Entering, start the operation of soil pressure pattern, the soil body in soil storehouse 2 is delivered to ground by conveying worm 5 and belt conveyor 9.
Specifically, the controlling party of the shield machine 100 according to one specific embodiment of the present invention is described below with reference to Fig. 1-Fig. 2
Method.
When shield machine 100 by soil pressure pattern to muddy water patten transformation time, control method includes:
S10: shield machine 100 stops driving, closes the ash gate of the outfan 52 of conveying worm 5, makes conveying worm 5
It is internally formed soil plug；
S20: shield machine 100 bypass mode of operation, can close the first plasma discharge control valve, the second plasma discharge control valve 43,
One against circulation control valve 73 and second against circulation control valve 83, now, enters the mud that stock pump 32 is pumped in pulp-inlet pipe 3 and all leads to
Cross bypass pipe 6 and flow to discharge pipe 4, and be pumped to ground by slurry pump 45, it is ensured that mud channel is unobstructed normally；
S30: use pressurize pattern to add mud toward soil storehouse 2, bypass valve 63, first can be closed against circulation control valve 73 and
Second against circulation control valve 83, opens the first plasma discharge control valve, and mud is entered in soil storehouse 2 by pulp-inlet pipe 3, by gas pressurize
System operation controls the pressure balance in soil storehouse 2；
S40: after soil storehouse 2 is full of mud, is switched to inverse circulation pattern, the first plasma discharge control valve and the second plasma discharge control valve 43
Can close, control valve 44 can be opened against circulation control valve 83 and the 3rd row by first against circulation control valve 73, second, enters slurry
Pump 32 is by mud pumping to pulp-inlet pipe 3, and flows in discharge pipe 4 by first against circulation pipe 7, then flows in soil storehouse 2, when
Mud in soil storehouse 2 is when reaching a certain amount of, and mud flows to second against in circulation pipe 8 by pulp-inlet pipe 3, finally by slurry pump 45
Discharge, dregs in soil storehouse 2 is rinsed repeatedly, make cutterhead 1 slow-speed of revolution operate to be stirred dregs simultaneously, open certainly simultaneously
Dynamic relief valve regulates soil storehouse 2 pressure；
S50: after inverse circulation pattern energy stable operation a period of time, then switch to boring mode and normally tunnel, close
Close first to be entered in soil storehouse 2 by pulp-inlet pipe 3 against circulation control valve 73 and second against circulation control valve 83, mud, and through discharge pipe 4
Mud is discharged；
When shield machine 100 by muddy water pattern to soil pressure patten transformation time, control method includes:
T10: cutterhead 1 rotating speed is reduced to below 0.5rpm, fltting speed is less than 15mm/min, closes on pulp-inlet pipe 3
Enter stock pump 32 and stop slurry conveyed, close the 3rd row by control valve 44, open second against circulation control valve 83, with inverse circulation pattern
Carrying out plasma discharge, the mud in soil storehouse 2 enters second against in circulation pipe 8 through pulp-inlet pipe 3, and discharges through discharge pipe 4, during plasma discharge
Soil storehouse 2 pressure is balanced by the cooperation of the slurry pump 45 plasma discharge flow on discharge pipe 4 and fltting speed；
The soil body that T20: cutterhead 1 cuts enters soil storehouse 2, and deposits to bottom, and the soil body slowly rises, when cutterhead 1 is turned round
When square significantly increases, whether the gate valve at detection dividing plate 21 blocks, and detection position is from low to high, it is ensured that the gate valve of this position is complete
Detect whether the next one blocks again after blocking, until completely plugged phenomenon also occurs in the gate valve of highest point；
It should be noted that after the gate valve of this position is blocked, illustrate that the mud of this position has been drained off.
T30: cutterhead 1 stops the rotation, and shield machine 100 stops advancing, and continues with inverse circulation pattern plasma discharge, opens automatically simultaneously
Pressure-retaining system balance soil storehouse 2 pressure, until after negative pressure occurs in slurry pump 45, closing slurry pump 45 and pulp-inlet pipe 3 and discharge pipe 4
On all control valves, gate valve at dividing plate is also switched off.
T40: open the ash gate of conveying worm 5, aperture is not more than 20%, starts cutterhead 1, and shield machine 100 starts to push away
Entering, start the operation of soil pressure pattern, the soil body in soil storehouse 2 is delivered to ground by conveying worm 5 and belt conveyor 9.
The phenomenon that the row's of should be noted gate is gushed during this period, can improve dregs and reduce risk of gushing.
In describing the invention, it is to be understood that term " " center ", " length ", " on ", D score, "front", "rear",
" push up ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship are based on orientation shown in the drawings or position relationship, be only for
It is easy to describe the present invention and simplifying describe rather than instruction or the device of hint indication or element must have a specific side
Position, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.Additionally, term " first ", " second "
It is only used for describing purpose, and it is not intended that instruction or hint relative importance or implicit indicate indicated technical characteristic
Quantity.Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " etc.
Term should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be that machinery connects
Connect, it is also possible to be electrical connection or each other can communication；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, permissible
It is connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For this area
For those of ordinary skill, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
One or more embodiments or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel
Close and combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example
Property, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, revises, replaces and modification.
Claims (11)
1. a shield machine, it is characterised in that including:
Cutterhead；
Tu Cang, described Tu Cang are located at the rear side of described cutterhead；
Pulp-inlet pipe, the slurry outlet of entering of described pulp-inlet pipe connects with described Tu Cang and is positioned at the top of described Tu Cang；
Discharge pipe, the plasma discharge import of described discharge pipe connects with described Tu Cang and is positioned at the bottom of described Tu Cang；
Conveying worm, the input of described conveying worm stretch to described soil storehouse in by described soil storehouse in earth transport
Outside described Tu Cang, described input is positioned at the lower section of described plasma discharge import；
Plasma discharge arm, one end of described plasma discharge arm connects with the outfan of described conveying worm, the other end and described plasma discharge
Pipe connects；With
Belt conveyor, one end of described belt conveyor is positioned at the position of the described outfan of described conveying worm.
Shield machine the most according to claim 1, it is characterised in that described plasma discharge arm is provided with arm control valve.
Shield machine the most according to claim 1, it is characterised in that also include:
Quarrying case, described quarrying case is located on described discharge pipe and the entrance point of described quarrying case connects with described plasma discharge arm.
Shield machine the most according to claim 3, it is characterised in that also include:
First against circulation pipe, and described first connects against one end of circulation pipe with described pulp-inlet pipe, the other end and described quarrying case
The port of export connects；
Second against circulation pipe, and described second connects against one end of circulation pipe with described pulp-inlet pipe and described second against the one of circulation pipe
End be positioned at described first against circulation pipe one end near described in enter the side of slurry outlet, the outlet of the other end and described quarrying case
End connection, and described second be positioned at described first against the entering away from described plasma discharge of the other end of circulation pipe against the other end of circulation pipe
The side of mouth；
First against circulation control valve, and described first to be located at described first against circulation control valve described first inverse against controlling on circulation pipe
The break-make of circulation pipe；
Second against circulation control valve, and described second to be located at described second against circulation control valve described second inverse against controlling on circulation pipe
The break-make of circulation pipe；
First plasma discharge control valve, described first plasma discharge control valve is located at described first against described one end and described second of circulation pipe
Between described one end of inverse circulation pipe；With
Second plasma discharge control valve, described second plasma discharge control valve is located at described first against the described other end and described of circulation pipe
Two against between the described other end of circulation pipe.
Shield machine the most according to claim 4, it is characterised in that also include:
Bypass pipe, one end of described bypass pipe connects with described pulp-inlet pipe, and the other end connects with described discharge pipe.
Shield machine the most according to claim 5, it is characterised in that one end of described bypass pipe is positioned at described first plasma discharge control
Valve processed and described pulp-inlet pipe enter between slurry inlet, the other end of described bypass pipe is positioned at described second plasma discharge control valve and described
Between the plasma discharge outlet of discharge pipe.
Shield machine the most according to claim 3, it is characterised in that be provided with defecator in described quarrying case.
Shield machine the most according to claim 1, it is characterised in that also include:
3rd plasma discharge control valve, described 3rd plasma discharge control valve be located at described plasma discharge import and described plasma discharge arm the other end it
Between.
Shield machine the most according to claim 1, it is characterised in that one end of described plasma discharge arm is near described helical feed
The outfan of machine.
Shield machine the most according to claim 9, it is characterised in that one end of described plasma discharge arm and described outfan
Lower section connection.
The control method of 11. 1 kinds of shield machines, it is characterised in that described shield machine is for according to institute any one of claim 1-10
The shield machine stated, described shield machine also includes that bypass pipe, one end of described bypass pipe connect with described pulp-inlet pipe, the other end and institute
State discharge pipe connection,
Described shield machine also includes first against circulation pipe and second against circulation pipe, described first against circulation pipe one end with described enter
Slurry pipe connection, the other end connects with described discharge pipe, and described second connects and described against one end of circulation pipe with described pulp-inlet pipe
Second against one end of circulation pipe be positioned at described first against circulation pipe one end near described in enter the side of slurry outlet, the other end with
Discharge pipe connects, and described second against the other end of circulation pipe be positioned at described first against circulation pipe the other end away from described row
The side of slurry inlet,
Described shield machine includes soil pressure pattern and muddy water pattern,
When described shield machine by described soil pressure pattern to described muddy water patten transformation time, described control method includes:
S10: described shield machine stops driving, closes the ash gate of the outfan of described conveying worm, makes described helical feed
Machine is internally formed soil plug；
S20: described shield machine bypass mode of operation, mud is entered into after described bypass pipe through described discharge pipe by described pulp-inlet pipe
Discharge, it is ensured that mud channel is unobstructed normally；
S30: using pressurize pattern to add mud toward described Tu Cang, close described bypass pipe, described mud is entered by described pulp-inlet pipe
Enter in described soil storehouse, controlled the pressure balance of described Tu Cang by the operation of gas pressure-retaining system；
S40: after described Tu Cang is full of mud, is switched to inverse circulation pattern, and described mud is entered into described the by described pulp-inlet pipe
One against in circulation pipe, then flows in described discharge pipe, finally enters in described soil storehouse, when being full of described mud in described soil storehouse
Time, described mud through described pulp-inlet pipe, described second be drained into described discharge pipe against circulation pipe in and discharge, by described Tu Cang
Interior dregs rinses repeatedly, makes the described cutterhead slow-speed of revolution operate to be stirred dregs simultaneously, opens automatic decompression valve simultaneously
Regulate described support pressure；
S50: after described inverse circulation pattern energy stable operation a period of time, then switch to boring mode and normally tunnel, institute
State mud to be entered in described soil storehouse by described pulp-inlet pipe, and through described discharge pipe, described mud is discharged；
When described shield machine by described muddy water pattern to described soil pressure patten transformation time, described control method includes:
T10: described cutterhead rotating speed is reduced to below 0.5rpm, fltting speed is less than 15mm/min, closes on described pulp-inlet pipe
The stock pump that enters stop slurry conveyed, carry out plasma discharge, by the plasma discharge on described discharge pipe during plasma discharge with described inverse circulation pattern
The cooperation of pump plasma discharge flow and described fltting speed balances described support pressure；
T20: the soil body that described knife cutting gets off enters described Tu Cang, and deposits to bottom, and the described soil body slowly rises, and works as institute
Stating cutter head torque when significantly increasing, whether the gate valve at detection dividing plate blocks, and detection position is from low to high, it is ensured that the institute of this position
State gate valve completely plugged after detect whether the next one blocks again, until completely plugged phenomenon also occurs in the described gate valve of highest point；
T30: described cutterhead stops the rotation, described shield machine stops advancing, continues with inverse circulation pattern plasma discharge, opens automatically simultaneously
Pressure-retaining system balances described support pressure, until after negative pressure occurs in described slurry pump, closing described slurry pump, at described dividing plate
Described gate valve is closed.
T40: opening the described ash gate of described conveying worm, aperture is not more than 20%, starts described cutterhead, described shield machine
Starting to advance, start the operation of described soil pressure pattern, the soil body in described soil storehouse is by described conveying worm and described belt
Conveyer is delivered to ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610770938.0A CN106223965B (en) | 2016-08-30 | 2016-08-30 | Shield machine and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610770938.0A CN106223965B (en) | 2016-08-30 | 2016-08-30 | Shield machine and its control method |
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| CN106223965B CN106223965B (en) | 2019-01-08 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107218052A (en) * | 2017-07-13 | 2017-09-29 | 合肥引力波数据科技有限公司 | A kind of shield machine tunnels soil analysis system |
| CN107989629A (en) * | 2017-12-27 | 2018-05-04 | 中铁工程装备集团有限公司 | A kind of shield machine dreg removing system and the shield machine with dreg removing system |
| CN109281685A (en) * | 2017-07-21 | 2019-01-29 | 中国铁建重工集团有限公司 | A kind of decompression type shield machine step by step |
| CN109458191A (en) * | 2018-12-28 | 2019-03-12 | 中铁工程装备集团有限公司 | A kind of double mode shield machine dregs transportation system |
| CN109899083A (en) * | 2019-04-16 | 2019-06-18 | 广东华坤建设集团有限公司 | Excavator Drainage rock method under the conditions of restricted clearance |
| CN110306993A (en) * | 2019-08-09 | 2019-10-08 | 中铁电气化局集团有限公司 | It is a kind of suitable for it is anhydrous and drift cobble geology shield construction method and equipment |
| CN110486026A (en) * | 2019-09-05 | 2019-11-22 | 中铁工程装备集团有限公司 | A kind of support pressure control system |
| CN116025374A (en) * | 2023-01-04 | 2023-04-28 | 中交第二航务工程局有限公司 | Soil pressure-muddy water dual-mode shield deslagging construction method based on screw conveyor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107218052A (en) * | 2017-07-13 | 2017-09-29 | 合肥引力波数据科技有限公司 | A kind of shield machine tunnels soil analysis system |
| CN109281685A (en) * | 2017-07-21 | 2019-01-29 | 中国铁建重工集团有限公司 | A kind of decompression type shield machine step by step |
| CN109281685B (en) * | 2017-07-21 | 2024-03-12 | 中国铁建重工集团股份有限公司 | Step-by-step decompression type shield tunneling machine |
| CN107989629A (en) * | 2017-12-27 | 2018-05-04 | 中铁工程装备集团有限公司 | A kind of shield machine dreg removing system and the shield machine with dreg removing system |
| CN109458191A (en) * | 2018-12-28 | 2019-03-12 | 中铁工程装备集团有限公司 | A kind of double mode shield machine dregs transportation system |
| CN109899083A (en) * | 2019-04-16 | 2019-06-18 | 广东华坤建设集团有限公司 | Excavator Drainage rock method under the conditions of restricted clearance |
| CN110306993A (en) * | 2019-08-09 | 2019-10-08 | 中铁电气化局集团有限公司 | It is a kind of suitable for it is anhydrous and drift cobble geology shield construction method and equipment |
| CN110486026A (en) * | 2019-09-05 | 2019-11-22 | 中铁工程装备集团有限公司 | A kind of support pressure control system |
| CN116025374A (en) * | 2023-01-04 | 2023-04-28 | 中交第二航务工程局有限公司 | Soil pressure-muddy water dual-mode shield deslagging construction method based on screw conveyor |
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| CN106223965B (en) | 2019-01-08 |
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Address after: 410100 No. 88 East 7 Line of Changsha Economic and Technological Development Zone, Hunan Province Patentee after: China Railway Construction Heavy Industry Group Co., Ltd. Address before: 410100 Changsha economic and Technological Development Zone, Hunan, No. 88 East Road, No. seven Patentee before: China Railway Construction Heavy Industry Co.,Ltd. |