CN104018844A - Shield tunneling machine water-pressure and gas-pressure balance control system and method in water-rich stratum - Google Patents
Shield tunneling machine water-pressure and gas-pressure balance control system and method in water-rich stratum Download PDFInfo
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- CN104018844A CN104018844A CN201410227110.1A CN201410227110A CN104018844A CN 104018844 A CN104018844 A CN 104018844A CN 201410227110 A CN201410227110 A CN 201410227110A CN 104018844 A CN104018844 A CN 104018844A
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Abstract
The invention discloses a shield tunneling machine water-pressure and air-pressure balance control system and method in a water-rich stratum. The shield tunneling machine water-pressure and air-pressure balance control system and method in the water-rich stratum solve the problems that muck in a shield tunneling machine in the water-rich stratum cannot be discharged normally, and the normal excavation of the shield tunneling machine is affected. According to the shield tunneling machine water-pressure and air-pressure balance control system, a muck pressure sensor (8) is arranged on a screw conveyor soil outlet (3), a soil cabinet muck upper limit sensor (9) is arranged on the soil cabinet inner wall at the height position of one third of capacity of a shield tunneling machine soil cabinet (2), a soil cabinet ponding pressure sensor (10) is arranged on the soil cabinet inner wall 1 meter above the oil cabinet muck upper limit sensor (9), an air pressure sensor (11) is arranged on the inner wall of the top of the soil cabinet, an industrial personal computer (12) is arranged in a control chamber of the shield tunneling machine, the compressed air output opening of an air compressor (13) is communicated with the shield tunneling machine soil cabinet (2) through a compressed air inlet pipe (14). By means of the shield tunneling machine water-pressure and air-pressure balance control system and method in the water-rich stratum, the construction efficiency of the shield tunneling machine in the water-rich stratum is improved, and the shield construction quality is guaranteed.
Description
Technical field
The present invention relates to a kind of control system of shield machine, particularly a kind of native cabin control pressurer system and control method thereof of the shield machine tunneling in Fu Shui stratum.
Background technology
The excavation of subway tunnel has two kinds of modes, is respectively Mining Method and shield method.When geological conditions more complicated, above ground structure during again than comparatively dense, is generally to adopt shield construction tunnel.Shield method (Shield Method) is a kind of Fully-mechanized construction method in hidden construction process construction, and it is that shield machine is advanced in ground, and the country rock by shield structure shell and section of jurisdiction supporting surrounding, prevents that country rock from caving in tunnel.Meanwhile, in excavation face the place ahead, with topping machanism, carry out soil excavation, by the machinery that is unearthed, the dregs excavating out is transported outside hole, by the jack jacking of pressurizeing at rear portion, and assembled precast concrete section of jurisdiction, form a kind of mechanized construction method of tunnel structure.The native freight space of shield machine, in cutter head of shield machine rear, is that carrying collects the seal cavity that face peels off rock mass and dregs.In the normal progradation of shield machine, the dregs that face peels off is buried and mouthful is entered into screw machine by screw machine, by belt conveyor, is discharged in the slag case of the battery truck of slagging tap.In shield machine soil cabin, operated by rotary motion has pressure sensor, for monitoring the pressure of cabin dregs, and signal is passed to shield machine control room, and for operating personnel provide reference, operating personnel regulate the fltting speed that the quantity of slag and shield machine of shield machine according to pressure.In rich water compound stratum, underground water has larger head pressure, underground water can enter into by rock fracture the native cabin of shield machine, cause the excessive problem of hydraulic pressure in the native cabin of shield machine, and then cause slagging tap and gush, dregs is slipped in tunnel from conveyor, has badly influenced the normal tunneling construction of shield machine.
Summary of the invention
The invention provides shield machine hydraulic pressure air pressure balance control system and control method thereof in a kind of Fu Shui stratum, solved shield machine dregs in Fu Shui stratum and can not normally discharge the technical problem that affects the normal driving of shield machine.
The present invention solves above technical problem by the following technical programs:
Shield machine hydraulic pressure air pressure balance control system in a kind of Fu Shui stratum, comprise cutter head of shield machine 1, rear side at cutter head of shield machine 1 is provided with shield machine soil cabin 2, lower end in shield machine soil cabin 2 is provided with screw machine soil outlet 3, on screw machine soil outlet 3, be connected with screw machine 4, on screw machine soil outlet 3, be provided with soil pressure of soil pressure sensor 8, on the native cabin inwall of the At The Height of 1/3rd capacity in shield machine soil cabin 2, be provided with native cabin dregs upper limit sensor 9, on the native cabin inwall at 1 meter of above native cabin dregs upper limit sensor 9, be provided with native cabin ponding pressure sensing 10, on the inwall at top, native cabin, be provided with baroceptor 11, in the control room of shield machine, be provided with Industrial Personal Computer (IPC) 12, soil pressure of soil pressure sensor 8, soil cabin dregs upper limit sensor 9, soil cabin ponding pressure sensing 10 and baroceptor 11 are electrically connected with Industrial Personal Computer (IPC) 12 respectively, the control output end of Industrial Personal Computer (IPC) 12 is electrically connected by control circuit 15 and air compressor 13, the compressed air delivery outlet of air compressor 13 is connected together by compressed air inlet pipe 14 and shield machine soil cabin 2, in native cabin, be disposed with from top to bottom native cabin dregs 5, pneumatosis 7 in soil cabin internal water accumulation 6 and native cabin.
Shield machine hydraulic pressure air pressure balance control method in a kind of Fu Shui stratum, it is characterized in that: Industrial Personal Computer (IPC) 12 is that the soil pressure of soil pressure sensor 8 arranging by screw machine soil outlet 3 places transmits the pressure signal of coming, judge whether screw machine soil outlet 3 places in native cabin are sealed by dregs, if screw machine soil outlet 3 is sealed by dregs, the quantity of slag that goes out that keeps screw machine 4, if screw machine soil outlet 3 does not seal, by shield machine control room, reduce the quantity of slag that of screw machine 4; Industrial Personal Computer (IPC) 12 is to transmit by native cabin dregs upper limit sensor 9 the pressure signal of coming, judge that dregs position in native cabin is whether higher than 1/3rd of the total capacity in shield machine soil cabin 2, if not higher than 1/3rd of the total capacity in shield machine soil cabin 2, the quantity of slag that goes out that keeps screw machine 4, if higher than 1/3rd of the total capacity in shield machine soil cabin 2, by shield machine control room, increase the quantity of slag that of screw machine 4; Industrial Personal Computer (IPC) 12 is the ponding pressure sensing in shield machine soil cabin 2 10 to be transmitted to the pressure signal coming transmit next pressure signal with baroceptor 11 and compare, when if the pneumatosis pressure in the ponding pressure in shield machine soil cabin 2 and shield machine soil cabin 2 is unequal, Industrial Personal Computer (IPC) 12 is by regulating the air demand of air compressor 13, the ponding pressure in shield machine soil cabin 2 is equated with the pneumatosis pressure in shield machine soil cabin 2, thereby reach hydraulic pressure and the air pressure balance in shield machine soil cabin 2.
The invention solves a difficult problem for Fu Shui stratum shield-tunneling construction, by making hydraulic pressure and the air pressure balance in shield machine soil cabin, the dregs that has effectively ensured shield machine is discharged smoothly, has improved the efficiency of construction of the shield machine in Fu Shui stratum, has guaranteed the quality of shield-tunneling construction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
Shield machine hydraulic pressure air pressure balance control system in a kind of Fu Shui stratum, comprise cutter head of shield machine 1, rear side at cutter head of shield machine 1 is provided with shield machine soil cabin 2, lower end in shield machine soil cabin 2 is provided with screw machine soil outlet 3, on screw machine soil outlet 3, be connected with screw machine 4, on screw machine soil outlet 3, be provided with soil pressure of soil pressure sensor 8, on the native cabin inwall of the At The Height of 1/3rd capacity in shield machine soil cabin 2, be provided with native cabin dregs upper limit sensor 9, on the native cabin inwall at 1 meter of above native cabin dregs upper limit sensor 9, be provided with native cabin ponding pressure sensing 10, on the inwall at top, native cabin, be provided with baroceptor 11, in the control room of shield machine, be provided with Industrial Personal Computer (IPC) 12, soil pressure of soil pressure sensor 8, soil cabin dregs upper limit sensor 9, soil cabin ponding pressure sensing 10 and baroceptor 11 are electrically connected with Industrial Personal Computer (IPC) 12 respectively, the control output end of Industrial Personal Computer (IPC) 12 is electrically connected by control circuit 15 and air compressor 13, the compressed air delivery outlet of air compressor 13 is connected together by compressed air inlet pipe 14 and shield machine soil cabin 2, in native cabin, be disposed with from top to bottom native cabin dregs 5, pneumatosis 7 in soil cabin internal water accumulation 6 and native cabin.
Shield machine hydraulic pressure air pressure balance control method in a kind of Fu Shui stratum, it is characterized in that: Industrial Personal Computer (IPC) 12 is that the soil pressure of soil pressure sensor 8 arranging by screw machine soil outlet 3 places transmits the pressure signal of coming, judge whether screw machine soil outlet 3 places in native cabin are sealed by dregs, if screw machine soil outlet 3 is sealed by dregs, the quantity of slag that goes out that keeps screw machine 4, if screw machine soil outlet 3 does not seal, by shield machine control room, reduce the quantity of slag that of screw machine 4; Industrial Personal Computer (IPC) 12 is to transmit by native cabin dregs upper limit sensor 9 the pressure signal of coming, judge that dregs position in native cabin is whether higher than 1/3rd of the total capacity in shield machine soil cabin 2, if not higher than 1/3rd of the total capacity in shield machine soil cabin 2, the quantity of slag that goes out that keeps screw machine 4, if higher than 1/3rd of the total capacity in shield machine soil cabin 2, by shield machine control room, increase the quantity of slag that of screw machine 4; Industrial Personal Computer (IPC) 12 is the ponding pressure sensing in shield machine soil cabin 2 10 to be transmitted to the pressure signal coming transmit next pressure signal with baroceptor 11 and compare, when if the pneumatosis pressure in the ponding pressure in shield machine soil cabin 2 and shield machine soil cabin 2 is unequal, Industrial Personal Computer (IPC) 12 is by regulating the air demand of air compressor 13, the ponding pressure in shield machine soil cabin 2 is equated with the pneumatosis pressure in shield machine soil cabin 2, thereby reach hydraulic pressure and the air pressure balance in shield machine soil cabin 2.
Specific embodiment of the invention is divided into following step: in the progradation of shield machine, by soil pressure of soil pressure sensor 8, feed back to the pressure signal of Industrial Personal Computer (IPC) 12, judge whether the dregs in shield machine soil cabin 2 can seal screw machine soil outlet 3 completely, thereby guarantee that shield machine soil cabin 2 is by completely airtight, to set up air pressure.By being limited to sensor 9 on the dregs of native cabin, guarantee dregs position be no more than shield machine soil cabin 2 volume 1/3rd, if the dregs position in shield machine soil cabin 2 is greater than 1/3rd, will affect shield driving speed, improve the quantity of slag that of screw machine 4.The pressure signal that finally passes to Industrial Personal Computer (IPC) 12 by native cabin ponding pressure sensing 10 and baroceptor 11 is controlled the charge flow rate of air compressor 13, if pass to the pressure information of Industrial Personal Computer (IPC) 12 by native cabin ponding pressure sensing 10 and baroceptor 11 not identical, Industrial Personal Computer (IPC) 12, to air compressor 13 transmission of signals, improves air compressor 13 air demands.The present invention is mainly the gas-water pressure balance of controlling in shield machine soil cabin 2, and guarantees that the ponding depth of water in shield machine soil cabin 2 is no more than 1 meter, thereby makes dregs workability meet continuous excavation condition, and shield-tunneling construction can normally be advanced continuously.
Claims (2)
1. the shield machine hydraulic pressure air pressure balance control system in a Fu Shui stratum, comprise cutter head of shield machine (1), rear side at cutter head of shield machine (1) is provided with shield machine soil cabin (2), lower end in shield machine soil cabin (2) is provided with screw machine soil outlet (3), on screw machine soil outlet (3), be connected with screw machine (4), it is characterized in that, on screw machine soil outlet (3), be provided with soil pressure of soil pressure sensor (8), on the native cabin inwall of the At The Height of 1/3rd capacity in shield machine soil cabin (2), be provided with native cabin dregs upper limit sensor (9), on the native cabin inwall at 1 meter of, top of native cabin dregs upper limit sensor (9), be provided with native cabin ponding pressure sensing (10), on the inwall at top, native cabin, be provided with baroceptor (11), in the control room of shield machine, be provided with Industrial Personal Computer (IPC) (12), soil pressure of soil pressure sensor (8), soil cabin dregs upper limit sensor (9), soil cabin ponding pressure sensing (10) and baroceptor (11) are electrically connected with Industrial Personal Computer (IPC) (12) respectively, the control output end of Industrial Personal Computer (IPC) (12) is electrically connected by control circuit (15) and air compressor (13), the compressed air delivery outlet of air compressor (13) is connected together by compressed air inlet pipe (14) and shield machine soil cabin (2), in shield machine soil cabin (2), be disposed with from top to bottom native cabin dregs (5), pneumatosis (7) in soil cabin internal water accumulation (6) and native cabin.
2. the shield machine hydraulic pressure air pressure balance control method in a Fu Shui stratum, it is characterized in that: Industrial Personal Computer (IPC) (12) is that the soil pressure of soil pressure sensor (8) of locating to arrange by screw machine soil outlet (3) transmits next pressure signal, judge what the screw machine soil outlet (3) in native cabin was located whether by dregs, to be sealed, if screw machine soil outlet (3) is sealed by dregs, the quantity of slag that goes out that keeps screw machine (4), if screw machine soil outlet (3) does not seal, by shield machine control room, reduce the quantity of slag that of screw machine (4); Industrial Personal Computer (IPC) (12) is the pressure signal coming by native cabin dregs upper limit sensor (9) transmission, judge that dregs position in native cabin is whether higher than 1/3rd of the total capacity in shield machine soil cabin (2), if not higher than 1/3rd of the total capacity in shield machine soil cabin (2), the quantity of slag that goes out that keeps screw machine (4), if higher than 1/3rd of the total capacity in shield machine soil cabin (2), by shield machine control room, increase the quantity of slag that of screw machine (4); Industrial Personal Computer (IPC) (12) is that pressure signal that the transmission of the ponding pressure sensing (10) in shield machine soil cabin (2) is come transmits next pressure signal with baroceptor (11) and compares, when if the pneumatosis pressure in the ponding pressure in shield machine soil cabin (2) and shield machine soil cabin (2) is unequal, Industrial Personal Computer (IPC) (12) is by regulating the air demand of air compressor (13), the ponding pressure in shield machine soil cabin (2) is equated with the pneumatosis pressure in shield machine soil cabin (2), thereby reach hydraulic pressure and the air pressure balance in shield machine soil cabin (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410227110.1A CN104018844B (en) | 2014-05-27 | 2014-05-27 | Shield machine hydraulic pressure air pressure balance control system in water rich strata and control method thereof |
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| CN201410227110.1A CN104018844B (en) | 2014-05-27 | 2014-05-27 | Shield machine hydraulic pressure air pressure balance control system in water rich strata and control method thereof |
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| CN104018844B CN104018844B (en) | 2016-03-02 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653191A (en) * | 2014-12-31 | 2015-05-27 | 广东华隧建设股份有限公司 | Method of earth pressure shield machine tunnelling in high efficiency in water-rich round gravel stratum |
| CN104806262A (en) * | 2015-05-15 | 2015-07-29 | 中铁二局股份有限公司 | Six-cutter head rectangular tube pushing machine |
| CN107420109A (en) * | 2017-08-11 | 2017-12-01 | 中国铁建重工集团有限公司 | A kind of automatic pressure-maintaining system and shield machine for slurry balance shield machine |
| CN111894615A (en) * | 2020-08-10 | 2020-11-06 | 中国电建集团铁路建设有限公司 | Air pressure balance shield machine and construction method |
| CN113202488A (en) * | 2021-05-14 | 2021-08-03 | 盾构及掘进技术国家重点实验室 | Device and method for improving supporting effect of excavation face of earth pressure balance type tunnel boring machine |
| CN113202486A (en) * | 2021-04-29 | 2021-08-03 | 中铁十二局集团有限公司 | Auxiliary pressure maintaining propulsion method for water-rich rock stratum SAMSON system |
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| JPH08218771A (en) * | 1995-02-13 | 1996-08-27 | Mitsubishi Heavy Ind Ltd | Sludge type tunnel excavator |
| CN201354640Y (en) * | 2008-12-09 | 2009-12-02 | 中铁隧道集团隧道设备制造有限公司 | Automatic control system for balancing shield machine excavation chamber pressure |
| CN101705827A (en) * | 2009-10-21 | 2010-05-12 | 上海隧道工程股份有限公司 | Muddy water and air balance shield pressure control method and device |
| CN102364049A (en) * | 2011-10-19 | 2012-02-29 | 中铁隧道装备制造有限公司 | Hard rock composite TBM (Tunnel Boring Machine) suitable for composite stratum and tunneling mode thereof |
| CN203891890U (en) * | 2014-05-27 | 2014-10-22 | 中铁十九局集团轨道交通工程有限公司 | Water pressure and air pressure balance control system of shield tunneling machine in water-rich stratum |
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| JPH08218771A (en) * | 1995-02-13 | 1996-08-27 | Mitsubishi Heavy Ind Ltd | Sludge type tunnel excavator |
| CN201354640Y (en) * | 2008-12-09 | 2009-12-02 | 中铁隧道集团隧道设备制造有限公司 | Automatic control system for balancing shield machine excavation chamber pressure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653191A (en) * | 2014-12-31 | 2015-05-27 | 广东华隧建设股份有限公司 | Method of earth pressure shield machine tunnelling in high efficiency in water-rich round gravel stratum |
| CN104653191B (en) * | 2014-12-31 | 2017-06-13 | 广东华隧建设股份有限公司 | A kind of method of earth pressure shield tunneling machine high efficient driving in rich water round gravel stratum |
| CN104806262A (en) * | 2015-05-15 | 2015-07-29 | 中铁二局股份有限公司 | Six-cutter head rectangular tube pushing machine |
| CN107420109A (en) * | 2017-08-11 | 2017-12-01 | 中国铁建重工集团有限公司 | A kind of automatic pressure-maintaining system and shield machine for slurry balance shield machine |
| CN111894615A (en) * | 2020-08-10 | 2020-11-06 | 中国电建集团铁路建设有限公司 | Air pressure balance shield machine and construction method |
| CN113202486A (en) * | 2021-04-29 | 2021-08-03 | 中铁十二局集团有限公司 | Auxiliary pressure maintaining propulsion method for water-rich rock stratum SAMSON system |
| CN113202488A (en) * | 2021-05-14 | 2021-08-03 | 盾构及掘进技术国家重点实验室 | Device and method for improving supporting effect of excavation face of earth pressure balance type tunnel boring machine |
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| CN104018844B (en) | 2016-03-02 |
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