CN206785398U - Slurry balance shield mud circulating system and slurry balance shield - Google Patents
Slurry balance shield mud circulating system and slurry balance shield Download PDFInfo
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- CN206785398U CN206785398U CN201720513168.1U CN201720513168U CN206785398U CN 206785398 U CN206785398 U CN 206785398U CN 201720513168 U CN201720513168 U CN 201720513168U CN 206785398 U CN206785398 U CN 206785398U
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- mud
- circulation line
- pulp
- inlet pipe
- balance shield
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Abstract
The utility model discloses a kind of slurry balance shield mud circulating system, including pulp-inlet pipe and plasma discharge pipeline and it is arranged between the pulp-inlet pipe road and plasma discharge pipeline and connects pulp-inlet pipe road and the mud of plasma discharge pipeline returns circulation line, the mud is returned and sets current divider between circulation line and the plasma discharge pipeline, the mud is returned and booster pump is provided with pipeline, and the pulp-inlet pipe terminal and discharge pipe terminal of the booster pump are respectively arranged with valve.The invention also discloses a kind of slurry balance shield, mud circulating system includes being arranged between pulp-inlet pipe road and plasma discharge pipeline and connects pulp-inlet pipe road and the mud of plasma discharge pipeline returns circulation line, the mud is returned and sets current divider between circulation line and the plasma discharge pipeline, the mud is returned and booster pump is provided with pipeline, and the pulp-inlet pipe terminal and discharge pipe terminal of the booster pump are respectively arranged with valve.The utility model can reduce the generation of the excavation storehouse stopping state in tunneling process, improve drivage efficiency.
Description
Technical field
It the utility model is related to a kind of underground engineering slurry shield machine, and in particular to a kind of slurry balance shield mud follows
Loop system and slurry balance shield.
Background technology
With the sustainable growth of China's infrastructure, the utilization of the underground space is also the emphasis side of current domestic Construction Study
To, and with the introduction of shield, the exploitation of the underground space becomes increasingly to facilitate and safety, and China is at present in underground engineering
The shield used is broadly divided into earth pressure balanced shield, EPBS and slurry balance shield.Wherein slurry balance shield soil in front of shield cutting
By can adjust the stable front soil body of the mud of pressure when body promotes, but because slurry balance shield in whole tunneling process completely
In sealing state, its stability to stratum is better than EPB shield tunneling, so slurry balance shield relies on its more preferable stability
And more reliable security, also more come about welcome.Slurry balance shield by the soil body in front of knife cutting, after cutting the soil body with
Excavate defeated by sludge discharge pipe road again into sludge discharge pipe road by being arranged on the mud door of shield bottom after storehouse mud mixes
Ground Slurry treatment field is delivered to, separating treatment is carried out to being delivered to ground muddy water by Slurry treatment field.
Because slurry balance shield is slagged tap the circulating of mud of placing one's entire reliance upon, therefore mud circulation is whether unobstructed straight
Connect the efficiency for determining slurry balance shield construction.When slurry balance shield in cohesive soil stratum, sand-pebble layer and passes through obstacle
Mud door clogging occurs during thing, once clogging occurs in mud door, not only influences slurry balance shield construction effect
Rate, and following dangerous situation occurs：1st, excavate storehouse pressure to raise suddenly, land upheaval or breakdown may be caused.2nd, open
Dig after storehouse blocks and be not easy dredging, it is necessary to circulate for a long time, prolonged circulation may cause stratum before cutterhead to cave in.3、
Excavating normal circulation after storehouse blocks can not dredge to mud door, now need warehouse entry artificial treatment with pressure, warehouse entry with pressure
Risk is big, and cost is high.4th, cutterhead is may result in by the phenomenon of card after blocking up storehouse.For this slurry balance shield, there is an urgent need to a kind of energy
Enough greatly reduce the stifled storehouse time in slurry balance shield tunneling process, the effective mud circulating system for improving drivage efficiency and
Slurry balance shield.
The content of the invention
In order to more preferably solve it is above-mentioned the problems of in the prior art, the utility model, which provides one kind, to be greatly reduced
Stifled storehouse time in shield tunneling process, effective the slurry balance shield mud circulating system for improving drivage efficiency and muddy water are put down
Weigh shield.
In order to realize above-mentioned purpose of utility model, the technical solution of the utility model is：A kind of slurry balance shield mud
The circulatory system, including pulp-inlet pipe and plasma discharge pipeline, wherein, in addition to be arranged between the pulp-inlet pipe road and plasma discharge pipeline and connect
The mud of logical pulp-inlet pipe road and plasma discharge pipeline returns circulation line, and the mud is returned between circulation line and the plasma discharge pipeline
Current divider is set, and the mud is returned and booster pump is provided with pipeline, the pulp-inlet pipe terminal and discharge pipe terminal of the booster pump
It is respectively arranged with valve.
The booster pump is centrifugal pump, and the circulation line of returning between the booster pump outlet and the valve is provided with gas
Dynamic ball valve.
Also include PLC control devices, the centrifugal pump and pneumatic ball valve electrically connect with the PLC control devices.
The internal diameter of the pipeline that the mud returns in circulation line is 120-170mm, wall thickness 8-12mm.
The utility model also provides a kind of slurry balance shield, including cutterhead, excavation storehouse, air cushion storehouse, mud door, rubble dress
Put, gas pressurizer, excavate storehouse pressure-detecting device, electric-control system and mud circulating system, wherein, the mud cyclic system
System includes pulp-inlet pipe road, plasma discharge pipeline and mud and returns pipeline, and the mud returns circulation line and is arranged on pulp-inlet pipe road and row
Between slurry pipeline and pulp-inlet pipe road and plasma discharge pipeline are connected, the mud is returned to be set between circulation line and the plasma discharge pipeline
Current divider, the mud are returned and booster pump are provided with pipeline, pulp-inlet pipe terminal and discharge pipe the terminal difference of the booster pump
It is provided with valve,
Wherein, the mud circulating system can realize that mud returns circulation line closing mode of operation and mud returns circulation
Pipeline starts mode of operation, and when realizing that mud returns circulation line closing mode of operation, the mud is returned on circulation line
Valve and booster pump close, current divider do not work, and enters after the mud injection mud circulating system by pulp-inlet pipe road and opens
Dig storehouse and carry excavate storehouse in dregs by plasma discharge pipeline discharge, when realize mud return circulation line startup mode of operation
When, the mud returns valve and booster pump opening on circulation line, and current divider work, discharge mud is after current divider
A part of slurries, which flow into mud, to be returned circulation line and is circulated together into excavating storehouse into pulp-inlet pipe road and new injection mud,
Remaining mud discharge.
When the mud circulating system realizes that mud returns circulation line closing mode of operation, when in the excavation storehouse
When pressure oscillation value exceeds default accuracy rating, the mud circulating system realizes that mud returns circulation line using switching measure
Start mode of operation.
The default accuracy rating is ± 0.3bar.
The booster pump is centrifugal pump, and the circulation line of returning between the booster pump outlet and the valve is provided with gas
Dynamic ball valve.
The pneumatic ball valve and centrifugal pump electrically connect with the electric-control system.
The internal diameter of the pipeline that the mud returns in circulation line is 120-170mm, wall thickness 8-12mm.
Beneficial effect：
1st, the excavation storehouse that the utility model slurry balance shield mud circulating system can be reduced in tunneling process blocks feelings
The generation of condition, improve drivage efficiency.Mud is returned in circulation line in the utility model slurry balance shield mud circulating system
Design further enhancing the mud circulation strength excavated in storehouse, can effectively reduce shield stifled storehouse phenomenon when clay layer tunnel
Generation, improve drivage efficiency.
2nd, the utility model slurry balance shield mud circulating system plays the role of good to dredging mud door blocking, can
Greatly reduce the stifled storehouse time, drivage efficiency of the shield when passing through underground obstacle can be improved.The utility model mud and water balance shield
Booster pump can be increased into slurry pressure in structure mud circulating system, increased into slurry flow, and strengthen slurries takes slag ability, can be fine
The mud door of ground dredge blockage, greatly reduce the stifled storehouse time, drivage efficiency of the shield when passing through underground obstacle can be improved.
3rd, the utility model slurry balance shield mud circulating system can reduce pulp pressure, prevent from excavating storehouse front portion pressure
Ground settlement or protuberance caused by crossing great fluctuation process.The utility model mud in the utility model slurry balance shield mud circulating system
Returned in the water balance shield slurry circulatory system in circulation line so that part excludes mud and returned to pulp-inlet pipe road, so as to reduce
Pulp pressure, prevent from excavating terrestrial reference sedimentation caused by storehouse front portion pressure produced great fluctuation process or the generation of protuberance phenomenon.
4th, the utility model slurry balance shield is reduced in cohesive soil stratum, sand-pebble layer and tunneled when passing through barrier
Stifled storehouse phenomenon and duration of congestion in journey, reduce the various risks because of caused by blocking, effectively improve drivage efficiency.This reality
The design in circulation line is returned with new slurry balance shield and further enhancing the mud circulation strength excavated in storehouse, can be had
Effect reduce shield when clay layer tunnel block up storehouse phenomenon generation, and to dredging mud door blocking play the role of it is good, can
Greatly reduce the stifled storehouse time, effectively improve drivage efficiency.
5th, the utility model slurry balance shield reduces pulp pressure, caused by preventing that excavating storehouse front portion pressure crosses great fluctuation process
Ground settlement or protuberance.The utility model slurry balance shield mud in the utility model slurry balance shield mud circulating system
Return in the circulatory system in circulation line and returned so that partly excluding mud to pulp-inlet pipe road, so as to reduce pulp pressure, prevented
Only excavate terrestrial reference sedimentation caused by storehouse front portion pressure produced great fluctuation process or the generation of protuberance phenomenon.
Brief description of the drawings
Fig. 1 is slurry balance shield mud circulating system structural representation in the utility model embodiment；
Fig. 2 is the structural representation of slurry balance shield in the utility model embodiment, and wherein mud returns circulation line
On valve and booster pump close, mud circulating system be in mud return circulation line closing mode of operation state；
Fig. 3 is the structural representation of slurry balance shield in the utility model embodiment, and wherein mud returns circulation line
On valve and booster pump open, mud circulating system be in mud return circulation line startup mode of operation state；
In figure, pulp-inlet pipe road 1, plasma discharge pipeline 2, mud return circulation line 3, current divider 4, booster pump 5, pneumatic ball valve
6th, including cutterhead 7, excavate storehouse 8, air cushion storehouse 9, mud door 10, lithotripsy apparatus 11, gas pressurizer 12, electric-control system 13.
Embodiment
Below in conjunction with the accompanying drawings, by specific embodiment, the utility model is described in further detail.Following examples are simply retouched
The property stated, be not limited, it is impossible to limit the scope of protection of the utility model with this.
Embodiment 1
Fig. 1, a kind of slurry balance shield mud circulating system, including pulp-inlet pipe 1 and plasma discharge pipeline 2 are participated in, in addition to is set
Put between the pulp-inlet pipe road 1 and plasma discharge pipeline 2 and connect pulp-inlet pipe road 1 and the mud of plasma discharge pipeline 2 returns circulation line
3, the mud returns circulation line 3 and sets current divider 4 with the junction of plasma discharge pipeline 2 to facilitate slurries smooth can be back to
Return in circulation line 1, the mud is returned and booster pump 5 is provided with pipeline, the end of pulp-inlet pipe road 1 of the booster pump 5 and row
Slurry pipeline 2 end is respectively arranged with valve.
The booster pump 5 is centrifugal pump, is pressurizeed for pump drainage mud and to pipeline, can increase into slurry pressure, increase into slurry
Flow, strengthen slurries takes slag ability, further enhancing the circulation strength for excavating storehouse 8, and strengthen slurries takes slag ability, to dredging
Logical mud door, which blocks, to be played the role of good, can effectively solve stifled storehouse phenomenon when shield tunnel in argillic horizon.Adopted in the present embodiment
With 55kw centrifugal pumps, the circulation line of returning that the booster pump 5 is exported between the valve is provided with pneumatic ball valve 6, so as to
Circulation line 3 is returned by controlling the folding of pneumatic ball valve 6 to open mud at any time according to driving situation in tunneling process, in addition to
PLC control devices, the centrifugal pump and pneumatic ball valve 6 electrically connect with the PLC control devices.
The internal diameter of the pipeline that the mud returns in circulation line 3 is 120-170mm, wall thickness 8-12mm.
Embodiment 2
Participate in Fig. 2, a kind of slurry balance shield, including cutterhead 7, excavation storehouse 8, air cushion storehouse 9, mud door 10, lithotripsy apparatus
11st, gas pressurizer 12, excavation storehouse pressure-detecting device, electric-control system 13 and mud circulating system, wherein, the mud follows
Loop system returns pipeline 3 including pulp-inlet pipe road 1, plasma discharge pipeline 2 and mud, and the mud is returned circulation line 3 and is arranged on into slurry
Between pipeline 1 and plasma discharge pipeline 2 and pulp-inlet pipe road 1 and plasma discharge pipeline 2 are connected, the mud returns circulation line 3 and the row
Current divider 4 is set to facilitate smooth be back to of slurries energy to return in circulation line 1, the mud returns pipeline 3 between slurry pipeline 2
On be provided with booster pump 5, the end of pulp-inlet pipe road 1 and the end of plasma discharge pipeline 2 of the booster pump 5 are respectively arranged with valve, it is described enter slurry
Pipeline 1 includes entering to starch branch pipe with multiple into slurry supervisor, multiple to enter to starch radially and/or circumferentially spaced apart distribution of the branch pipe along cutterhead 7,
It is possible thereby to expand the distribution into slurry branch pipe, not only improve mud and carry the ability of dregs, while can also play very well
Rinse the effect of cutterhead 7.
Wherein, the mud circulating system can realize that mud returns the closing mode of operation of circulation line 3 and mud is returned and followed
Endless tube road 3 starts mode of operation, and when realizing that mud returns the closing mode of operation of circulation line 3, the mud returns circulation pipe
Valve and booster pump 5 on road 3 are closed, and current divider 4 does not work, by pulp-inlet pipe road after the mud injection mud circulating system
1 enters to excavate storehouse 8 and carry the dregs excavated in storehouse 8 and is discharged by plasma discharge pipeline 2, when realizing that mud returns circulation line 3 and open
Start building operation mode when, the mud returns valve on circulation line 3 and booster pump 5 is opened, and current divider 4 works, and discharges mud
A part of slurries inflow mud after current divider 4 returns circulation line 3 and enters pulp-inlet pipe road 1 and newly inject mud to enter together
Enter to excavate storehouse 8 to be circulated, remaining mud discharge.
When the mud circulating system realizes that mud returns the closing mode of operation of circulation line 3, when in the excavation storehouse 8
Pressure oscillation value when exceeding default accuracy rating, the mud circulating system realizes that mud returns circulation pipe using switching measure
Road 3 starts mode of operation.Excavate in storehouse 8 and be provided with pressure sensor, mud circulating system is opened according to what pressure sensor fed back
The pressure change in digging storehouse 8 carrys out shutdown or startup mud and returns circulation line 3, when pressure is higher than setting value, starts mud and returns
Circulation line 3, the mud returns valve on circulation line 3 and booster pump 5 is opened, and current divider 4 works, and discharge mud passes through
A part of slurries after current divider 4 flow into mud and return that circulation line 3 enters pulp-inlet pipe road 1 and new injection mud enters open together
Dig storehouse 8 to be circulated, remaining mud discharge, so as to reduce pulp pressure, prevent that excavating 8 anterior pressure of storehouse produced great fluctuation process
Caused by terrestrial reference sedimentation or protuberance phenomenon generation, while also enhance excavate storehouse 8 in mud circulation strength, can effectively reduce
Shield blocks up the generation of storehouse phenomenon when clay layer tunnels.
The default accuracy rating is ± 0.3bar.
The booster pump 5 is centrifugal pump, is pressurizeed for pump drainage mud and to pipeline, can increase into slurry pressure, increase into slurry
Flow, strengthen slurries takes slag ability, further enhancing the circulation strength for excavating storehouse 8, and strengthen slurries takes slag ability, to dredging
Logical mud door 10, which blocks, to be played the role of good, can effectively solve stifled storehouse phenomenon when shield tunnel in argillic horizon.In the present embodiment
Using 55kw centrifugal pumps, the circulation line of returning that the booster pump 5 is exported between the valve is provided with pneumatic ball valve 6, with
Just circulation line 3 is returned by controlling the folding of pneumatic ball valve 6 to open mud at any time according to driving situation in tunneling process, it is described
Pneumatic ball valve 6 and centrifugal pump electrically connect with the electric-control system 13.
The internal diameter of the pipeline that the mud returns in circulation line 3 is 120-170mm, wall thickness 8-12mm.
Claims (10)
1. a kind of slurry balance shield mud circulating system, including pulp-inlet pipe and plasma discharge pipeline, it is characterised in that：Also include setting
Between the pulp-inlet pipe road and plasma discharge pipeline and connect the mud on pulp-inlet pipe road and plasma discharge pipeline and return circulation line, the mud
Slurry, which is returned, sets current divider between circulation line and the plasma discharge pipeline, the mud is returned and booster pump is provided with pipeline, institute
The pulp-inlet pipe terminal and discharge pipe terminal for stating booster pump are respectively arranged with valve.
2. slurry balance shield mud circulating system as claimed in claim 1, it is characterised in that：The booster pump is centrifugation
Pump, the circulation line of returning between the booster pump outlet and the valve are provided with pneumatic ball valve.
3. slurry balance shield mud circulating system as claimed in claim 2, it is characterised in that：Also include PLC control devices,
The centrifugal pump and pneumatic ball valve electrically connect with the PLC control devices.
4. slurry balance shield mud circulating system as claimed in claim 1, it is characterised in that：The mud returns circulation pipe
Internal diameter of the pipeline in road is 120-170mm, wall thickness 8-12mm.
5. a kind of slurry balance shield, including cutterhead, excavate storehouse, air cushion storehouse, mud door, lithotripsy apparatus, gas pressurizer, open
Dig storehouse pressure-detecting device, electric-control system and mud circulating system, it is characterised in that：The mud circulating system includes pulp-inlet pipe
Road, plasma discharge pipeline and mud return pipeline, and the mud is returned circulation line and is arranged between pulp-inlet pipe road and plasma discharge pipeline simultaneously
Connection pulp-inlet pipe road and plasma discharge pipeline, the mud are returned and current divider are set between circulation line and the discharge pipe, the mud
Slurry, which is returned, is provided with booster pump on pipeline, the pulp-inlet pipe terminal and discharge pipe terminal of the booster pump are respectively arranged with valve,
Wherein, the mud circulating system can realize that mud returns circulation line closing mode of operation and mud returns circulation line
Start mode of operation, when realizing that mud returns circulation line closing mode of operation, the mud returns the valve on circulation line
Door and booster pump are closed, and current divider does not work, and are entered after the mud injection mud circulating system by pulp-inlet pipe road and are excavated storehouse
And carry the dregs excavated in storehouse and discharged by plasma discharge pipeline, when realizing that mud returns circulation line startup mode of operation, institute
State that mud returns valve on circulation line and booster pump is opened, current divider work, one after current divider of discharge mud
Point slurries, which flow into mud, to be returned circulation line and is circulated together into excavating storehouse into pulp-inlet pipe road and new injection mud, remaining
Mud is discharged.
6. slurry balance shield as claimed in claim 5, it is characterised in that：When the mud circulating system realizes that mud is returned
When circulation line closes mode of operation, when the pressure oscillation value in the excavation storehouse exceeds default accuracy rating, the mud
The circulatory system realizes that mud returns circulation line and starts mode of operation using switching measure.
7. slurry balance shield as claimed in claim 6, it is characterised in that：The default accuracy rating is ± 0.3bar.
8. slurry balance shield as claimed in claim 5, it is characterised in that：The booster pump is centrifugal pump, the booster pump
Circulation line of returning between outlet and the valve is provided with pneumatic ball valve.
9. including the slurry balance shield described in claim 8, it is characterised in that：The pneumatic ball valve and centrifugal pump and the electricity
Control system electrically connects.
10. slurry balance shield as claimed in claim 5, it is characterised in that：The mud returns the pipeline in circulation line
Internal diameter is 120-170mm, wall thickness 8-12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720513168.1U CN206785398U (en) | 2017-05-10 | 2017-05-10 | Slurry balance shield mud circulating system and slurry balance shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720513168.1U CN206785398U (en) | 2017-05-10 | 2017-05-10 | Slurry balance shield mud circulating system and slurry balance shield |
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| Publication Number | Publication Date |
|---|---|
| CN206785398U true CN206785398U (en) | 2017-12-22 |
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ID=60710970
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720513168.1U Active CN206785398U (en) | 2017-05-10 | 2017-05-10 | Slurry balance shield mud circulating system and slurry balance shield |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996295A (en) * | 2017-05-10 | 2017-08-01 | 中铁隧道股份有限公司 | Slurry balance shield mud circulating system and slurry balance shield |
| CN110778326A (en) * | 2019-11-08 | 2020-02-11 | 中国铁建重工集团股份有限公司 | Slurry balance push bench and slurry circulation system thereof |
| CN114215535A (en) * | 2021-12-13 | 2022-03-22 | 中铁工程装备集团有限公司 | Slurry balance shield slurry circulation system |
| CN115788461A (en) * | 2022-12-16 | 2023-03-14 | 盾科工程装备有限公司 | Muddy water suction type shield machine |
-
2017
- 2017-05-10 CN CN201720513168.1U patent/CN206785398U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996295A (en) * | 2017-05-10 | 2017-08-01 | 中铁隧道股份有限公司 | Slurry balance shield mud circulating system and slurry balance shield |
| CN110778326A (en) * | 2019-11-08 | 2020-02-11 | 中国铁建重工集团股份有限公司 | Slurry balance push bench and slurry circulation system thereof |
| CN114215535A (en) * | 2021-12-13 | 2022-03-22 | 中铁工程装备集团有限公司 | Slurry balance shield slurry circulation system |
| 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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