CN206144564U - System is prevented and treated to earth pressure balance shield mud cake based on synchronous efflux - Google Patents
System is prevented and treated to earth pressure balance shield mud cake based on synchronous efflux Download PDFInfo
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- CN206144564U CN206144564U CN201621060762.1U CN201621060762U CN206144564U CN 206144564 U CN206144564 U CN 206144564U CN 201621060762 U CN201621060762 U CN 201621060762U CN 206144564 U CN206144564 U CN 206144564U
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Abstract
The utility model provides a system is prevented and treated to earth pressure balance shield mud cake based on synchronous efflux, includes panel fixed nozzle, blade disc, the shield body, native storehouse baffle, washing gun, wash position and tube coupling, high -pressure pipeline and pipe fitting, water knockout drum, relief valve, manometer, the newly -increased centrifugal pump of high pressure, first wife's centrifugal pump, base, feed pipe, screw machine, controller, no. Two platform trucks. The utility model discloses the work efficiency is high, with low costs, few, the easy operation of the required equipment investment of this system, and washing gun through native storehouse baffle different positions does not have the dead angle and washes blade disc back, blade disc bracket, native storehouse baffle, and 4 holes of axial, 1 hole of axial, 4 radial pore structures are divided to washing gun 's different specifications of nozzle design to satisfy the needs that wash at different positions, it washes not have the dead angle through blade disc panel fixed nozzle to blade disc center part cutter, the mud cake washes with the shield driving in step, and the mud cake prevention and cure do not influence the shield and construct normal tunnelling.
Description
Technical field
This utility model is related to the Prevention Technique of earth pressure balanced shield, EPBS mud cake, more particularly to a kind of soil based on synchronous jet
Pressure balance shield mud cake prevents and treats system, belongs to fluid control technology.
Background technology
Earth pressure balanced shield, EPBS is that the front soil body is cut using cutterhead, the soil body is entered after cutterhead in the form of dregs
The Tu Cang in face, by related boring parameters such as regulation thrust, moment of torsion and unearthed amounts, reaches the Water And Earth Pressures and excavation face in native storehouse
The balance of Water And Earth Pressures, so as to control ground settlement.When shield is tunneled in argillaceous siltstoue, because the soil body is rich in clay mineral
Matter, particle diameter is little and viscosity is big, is easily attached on cutterhead in shield tunneling process, after by Tool in Cutting, cutterhead extruding
Easily progressively spread to surrounding from cutter head center position, the mud cake of attachment is formed on cutterhead back, slag inlet；Compared with Gao Tucang
It is constantly thickening in the presence of temperature and pressure to be hardened, ultimately result in cutter, cutterhead slag inlet and pasted by dregs, cutterhead loses cuts soil
Ability；The formation of native storehouse mud cake stirs uneven mainly due to dregs, and boring parameter is not good enough to cause dregs displacement relatively slow, synchronous note
Pressure is bigger than normal causes mortar to enter storehouse of burying for slurry, and sediment improvement is not good enough to cause screw machine to be unearthed freely does not make dregs produce in Tu Cang accumulations
Mud cake.
Shield is tunneled in upper-soft lower-hard ground or tunneling boring mud stone, and cutterhead, Tu Cang easily produce mud cake, while by mud cake
The driving that causes is difficult, equipment fault increases, and can especially increase main driving bad seals and unnecessary with pressure open a position etc. one is
Row risk.
In order to solve to carry out the drawbacks of must shutting down when mud cake is processed using conventional method, evade the driving that mud cake causes and be stranded
Difficult, equipment fault is especially damaged and main drives sealing, a series of unnecessary risks such as open a position with pressure, the mud cake for generally adopting to prevent
The method of controlling has the method such as sediment improvement and adjustment boring parameter, is by adding appropriate soil improvement agent, changing in prior art
The workability of the kind soil body, reduces the cutting soil body and cutter head of shield machine and interstructural adhesion strength, and by arranging rational driving
Parameter, it is ensured that the stability of soil pressure is smooth with what is be unearthed in soil cabin, makes shield driving " continuous, quick, stable ", though this drops
The probability of generation mud cake in low cutterhead and native storehouse, but the generation of mud cake can not be completely avoided, once generating mud cake, then can only stop
Driving, is rinsed or the process that opens a position with pressure by reserving hole.But the original design reserving hole being provided with dividing plate of shield machine is not
Consider that mud cake is rinsed, the function of not possessing direct water spray, reserving hole is used to that when ground consisting of hard rock open type is tunneled inspection can be opened
Native storehouse situation is looked into, or additive injection channel etc. is set up as needed in Different Strata, and during earth pressure balance is tunneled, soil
It is muddy water in storehouse, once open that native storehouse pressure release will be caused, if closing, security incident can be led to not in time.Therefore conventional mud cake is prevented
Control that method reliability is low, risk big, high cost, affect the duration.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, there is provided a kind of earth pressure balanced shield, EPBS synchronization jet mud
Cake prevents and treats system, reaches mud cake and prevents and treats the target synchronous with shield driving, while the system also contributes to sediment improvement effect
The effect of fruit, beneficial to evading a series of construction risks that mud cake brings.
The technical solution of the utility model is：Based on high-pressure water jet principle, i.e., using high pressure water generating device, it is with water
Working media so as to after huge energy is obtained, with fluid movement, by being mounted in advance on native storehouse dividing plate, cutter head panel
Specific nozzle, shower nozzle produce the water jets beam of high speed, the soil body of diverse location in cutter head panel, cutterhead back and native storehouse is entered
Row is rinsed, cutting, to remove the mud cake of generation, or avoids dregs consolidation in bulk from forming mud cake, so as to reach mud cake preventing and treating and shield
The synchronous target of structure driving, using the system function of sediment improvement effect is also contributed to.
Mud cake described in the utility model prevents and treats system composition to be included:Panel stationary nozzle, cutterhead, shield body, native storehouse dividing plate, punching
Wash the connection of rifle, flush points position and pipeline, pressure duct and pipe fitting, water knockout drum, relief valve, pressure gauge, high pressure newly-increased centrifugal pump, original
With centrifugal pump, base, feed pipe, screw machine, controller, No. two chassis.
The structure of the sluice gun is including nozzle, to silk, ball valve, reinforcing the heart and gun body.
The panel stationary nozzle is fixed on the centre of cutterhead using welding, and sluice gun adopts threaded connection side
Formula, on the reserved ball valve of native storehouse dividing plate, installs flushing and robs in flush points position and line connection, and sluice gun is pacified by reinforcing the heart
It is attached on ball valve, nozzle is threaded connection with gun body;The newly-increased centrifugal pump of high pressure is fixed on No. two chassis rear portions, high pressure increase newly from
With base by bolt connection, on No. two chassis, the newly-increased centrifugal pump water inlet of high pressure is pumped out tube chamber welds with base heart pump with first wife's centrifugation
Water lines are connected by pressure duct and pipe fitting, and at the newly-increased outlet of centrifugal pump of high pressure pressure gauge, relief valve, safe valve outlet port are installed
The water knockout drum being connected in shield body, water knockout drum is combined by pipe fitting, and water knockout drum passes through pressure duct with the newly-increased centrifugal pump of high pressure
And pipe fitting connection;Water knockout drum draws 9 road flexible pipes, wherein 5 tunnels are connected on the ball valve of sluice gun, 4 tunnels are connected to the liquid of revolving body
Pressure passageway interface, water under high pressure enters into cutterhead flange center contact by revolving body, then is connected in this by pressure duct and pipe fitting
Heart contact and panel stationary nozzle.
Mud cake described in the utility model prevents and treats the course of work of system：Step is installation, the panel stationary nozzle of sluice gun
Installation, system debug mud cake formed judgement, flushing operation, sluice gun nozzle exchange, flushing flow rate analysis with auxiliary dregs
Improvement, maintenance conditions;
The newly-increased centrifugal pump of high pressure is installed at No. two chassis hydraulic power unit rear portions, the newly-increased centrifugal pump of high pressure connects with bolt of lower base
Connect, the newly-increased centrifugal pump base of high pressure is welded and fixed with No. two chassis, the newly-increased centrifugal pump of high pressure be installed, series connection of pumps is centrifuged with first wife,
Effusion meter is installed in high pressure newly-increased centrifugal pump water inlet, pressure gauge, relief valve are installed at the newly-increased outlet of centrifugal pump of high pressure, will control
Device processed is arranged on master control outside;The stationary nozzle that is installed on cutter head panel, the sluice gun of native storehouse dividing plate are separately mounted to shield
It is separately mounted to before originating on the preformed hole of the centre on cutter head panel and native storehouse dividing plate;Using entering for cutter head center position
Cinder notch makes the default pipeline in cutterhead be connected with the panel stationary nozzle in cutter head panel centre, and what cutter head panel was rinsed penetrates
Flowing water is using the reserved hydraulic channel of center steering body and newly-increased pipeline connection to shower nozzle.
The beneficial effects of the utility model：Work efficiency is high, low cost, the system equipment needed thereby small investment, simple to operate, passes through
The sluice gun of native storehouse dividing plate diverse location carries out being rinsed without dead angle to cutterhead back, cutterhead bracket, native storehouse dividing plate, the spray of sluice gun
Mouth designs different size, split axle to 4 holes, axially 1 hole, radially 4 pore structures, to meet the flushing needs of different parts；By knife
Card plate stationary nozzle carries out being rinsed without dead angle to cutter head center position cutter；Mud cake rinses synchronous with shield driving, and mud cake is prevented
Control and do not affect shield and normally tunnel.
It is safe and reliable, the risk that cutterhead, Tu Cang generate mud cake is effectively avoided by jet wash, evade because of mud cake
Cause it is with pressure open a position, a series of risks such as equipment fault.It is applied widely, it is adaptable to the soil pressure balance shielding of different size model
Structure, it may also be used for the process of slurry balance shield dividing plate mud cake and preventing and treating.For earth pressure balanced shield, EPBS, in mud cake preventing and treating
While being favorably improved the effect of sediment improvement, reducing the effect of sediment improvement additive amount.
Compared with prior art, concrete advantage shows as：If Tu Cang, cutterhead mud cake seriously can not be tunneled, conventional treatment
Method, with dispersant bubble about more than 72h is invaded, and dispersant and rotating cutter-head is regularly injected during bubble is invaded, in upper soft lower hard place
Layer, the stirring of cutterhead easily disturbs layer of sand, causes surface subsidence excessive or cave in, in order to prevent surface subsidence excessive or cave in,
By surface grout injection under permissive condition, mud cake is invaded bubble cleaning dispersant consumption and is not less than 100,000 yuan, shutdown be not less than 3 days,
Slow, surface grout injection of driving before shutdown etc., loss is not less than 1,000,000 yuan.
Once mud cake is serious, invade bubble it is invalid after to open a position process mud cake, under conditions permit, normal pressure opens a position process mud cake not
Less than 3 days and it is necessary to pressure to open a position, the labour cost that opens a position with pressure is not less than 300,000 yuan, then calculates idle cost and tunnel slow
A series of losses, expense is more than 1,500,000 yuan；Open a position all have very big security risk, have potential huge economic losses with
The dysgenic risk of society.
By the use of the system, high-pressure spray is rinsed and not only effectively processes mud cake, but also is rushed by regular
Native storehouse dividing plate, cutter head panel, cutterhead back are washed, wherein 1 nozzle maximum stream flow about 1m/h, single-hole nozzle minimum discharge about 0.2
M/h, can effectively prevent the incrusted risk of cutter head panel and cutterhead bracket position.
This utility model has evaded the invading that the bubble surface subsidence that brings of mud cake is excessive of routine and the risk caved in, and ground caves in
Traffic above-ground, the safety of underground utilities are not only affected, sewage conduct leakage, natural gas leaking are caused because caving in when serious, brought
Larger society, environmental effect.Due to the timely prevention and process of mud cake, the dregs temperature liter caused because of native storehouse mud cake is evaded
The reduction in the main shaft seals life-span that height brings and the risk of infringement, have evaded because the thrust that mud cake reason is caused increases, and bring
Potential equipment life reduction, evaded the risk damaged because of the thrust unit exception brought of increase.The system technology
Use, improve shield driving efficiency, reduce the extra consumption of the various expenses caused because of mud cake.
Therefore the success of the system technology is used, and can bring good economic benefit and significant social benefit, its elder generation
The property entered and superiority are not only beneficial to construction cost, the control of risk, also are compliant with the requirement of green construction, make with popularization well
Use valency.
Description of the drawings
Fig. 1 a earth pressure balanced shield, EPBS synchronization jet mud cakes described in the utility model prevent and treat system schematic;
1- panel stationary nozzle 2- cutterhead 3- shield bodies 4- soil storehouse dividing plate 5- flush points position and pipeline connection 6-
The newly-increased centrifugal pump 10- first wife's centrifugal pump 11- bases 12- feedwater of water knockout drum 7- relief valve 8- pressure gauge 9- high pressure
No. bis- chassis 16- controllers of pipe 13- screw machine 14- pressure ducts and pipe fitting 15-;
Fig. 1 b are the generalized section of Fig. 1-a,
In figure:1- panel stationary nozzle 17- sluice guns;
Fig. 2 is cutter head panel central jets schematic diagram described in the utility model;
In figure:1- panel stationary nozzle 18- water (flow) directions 19- center serrated knife;
Fig. 3 is sluice gun structural representation described in the utility model,
20- nozzles 21- is to silk 22- ball valve 23- reinforcing the heart 24- gun bodies in figure
Fig. 4 a are panel stationary nozzle schematic three dimensional views described in the utility model;
Fig. 4 b are panel stationary nozzle generalized section described in the utility model;
Fig. 5 a are nozzle structure cut-away illustration described in the utility model;
Fig. 5 b are nozzle structure front view described in the utility model;
Fig. 6 a are benefit core construction cut-away illustration described in the utility model;
Fig. 6 b are benefit core construction left view described in the utility model;
Fig. 7 a are that gun body described in the utility model constructs cut-away illustration;
Fig. 7 b are that gun body described in the utility model constructs left view.
Specific embodiment
The technical solution of the utility model is：Based on high-pressure water jet principle, i.e., using high pressure water generating device, it is with water
Working media so as to after huge energy is obtained, with fluid movement, by being mounted in advance on native storehouse dividing plate, cutter head panel
Specific nozzle, shower nozzle produce the water jets beam of high speed, the soil body of diverse location in cutter head panel, cutterhead back and native storehouse is entered
Row is rinsed, cutting, to remove the mud cake of generation, or avoids dregs consolidation in bulk from forming mud cake, so as to reach mud cake preventing and treating and shield
The synchronous target of structure driving, using the system function of sediment improvement effect is also contributed to.
Mud cake described in the utility model prevents and treats system composition to be included:Panel stationary nozzle, cutterhead, shield body, native storehouse dividing plate, punching
Wash the connection of rifle, flush points position and pipeline, pressure duct and pipe fitting, water knockout drum, relief valve, pressure gauge, high pressure newly-increased centrifugal pump, original
With centrifugal pump, base, feed pipe, screw machine, controller, No. two chassis.
The structure of the sluice gun is including nozzle, to silk, ball valve, reinforcing the heart and gun body.
The panel stationary nozzle is fixed on the centre of cutterhead using welding, and sluice gun adopts threaded connection side
Formula, on the reserved ball valve of native storehouse dividing plate, installs flushing and robs in flush points position and line connection, and sluice gun is pacified by reinforcing the heart
It is attached on ball valve, nozzle is threaded connection with gun body;The newly-increased centrifugal pump of high pressure is fixed on No. two chassis rear portions, high pressure increase newly from
With base by bolt connection, on No. two chassis, the newly-increased centrifugal pump water inlet of high pressure is pumped out tube chamber welds with base heart pump with first wife's centrifugation
Water lines are connected by pressure duct and pipe fitting, and at the newly-increased outlet of centrifugal pump of high pressure pressure gauge, relief valve, safe valve outlet port are installed
The water knockout drum being connected in shield body, water knockout drum is combined by pipe fitting, and water knockout drum passes through pressure duct with the newly-increased centrifugal pump of high pressure
And pipe fitting connection;Water knockout drum draws 9 road flexible pipes, wherein 5 tunnels are connected on the ball valve of sluice gun, 4 tunnels are connected to the liquid of revolving body
Pressure passageway interface, water under high pressure enters into cutterhead flange center contact by revolving body, then is connected in this by pressure duct and pipe fitting
Heart contact and panel stationary nozzle.
Mud cake described in the utility model prevents and treats the course of work of system：Step is installation, the panel stationary nozzle of sluice gun
Installation, system debug mud cake formed judgement, flushing operation, sluice gun nozzle exchange, flushing flow rate analysis with auxiliary dregs
Improvement, maintenance conditions;
The newly-increased centrifugal pump of high pressure is installed at No. two chassis hydraulic power unit rear portions, the newly-increased centrifugal pump of high pressure connects with bolt of lower base
Connect, the newly-increased centrifugal pump base of high pressure is welded and fixed with No. two chassis, the newly-increased centrifugal pump of high pressure be installed, series connection of pumps is centrifuged with first wife,
Effusion meter is installed in high pressure newly-increased centrifugal pump water inlet, pressure gauge, relief valve are installed at the newly-increased outlet of centrifugal pump of high pressure, will control
Device processed is arranged on master control outside;The stationary nozzle that is installed on cutter head panel, the sluice gun of native storehouse dividing plate are separately mounted to shield
It is separately mounted to before originating on the preformed hole of the centre on cutter head panel and native storehouse dividing plate;Using entering for cutter head center position
Cinder notch makes the default pipeline in cutterhead be connected with the panel stationary nozzle in cutter head panel centre, and what cutter head panel was rinsed penetrates
Flowing water is using the reserved hydraulic channel of center steering body and newly-increased pipeline connection to shower nozzle.
It is below the specific embodiment of a certain engineering:
1st, the installation method of sluice gun is：
1) the DN50 plugs at dividing plate preformed hole are removed；
2) encapsulant with raw material band as screw thread position is sealed；
3) sluice gun for assembling is arranged on and is removed at the preformed hole of plug；
4) with raw material band as the encapsulant between sluice gun and preformed hole when installing；
5) DN25 ball valves are installed in sluice gun gun body end.
2nd, the installation method of stationary nozzle is：
1) according to the practical structures of cutter head panel, fixed position and the firm welding of shower nozzle is determined, after welding outside shower nozzle
30 × 30mm of side built-up welding, height are not less than 5mm, width and are not less than the wear-resisting grid of 10mm；
2) rigid line of connection shower nozzle is installed using slag inlet and carries out wear Protection；
3) with hose connection center steering body fluid pressure passageway interface and shower nozzle rigid line interface, flexible pipe is total to foam line
With safeguard structure, it is impossible to which common sparing carries out wear Protection；
4) revolving body external interface connection flushing water；
5) it is connected with booster pump outlet with DN25 hydraulic hoses, by 3 DN25 four-ways and 9 DN25 liquid in shield body
Water is diverted to pressure flexible pipe the DN25 ball valves of each shower nozzle and sluice gun end.
3rd, system debug
(1) whether the determination high pressure that switches on power increases centrifugal pump direction of rotation newly correct；
(2) water intake ball valve of the newly-increased centrifugal pump of high pressure is opened, pressure of supply water is detected, each shower nozzle ball valve is opened successively, detected
Whether pipeline has breakthrough.
4th, mud cake is formed and judged
Shield is tunneled in the more stratum of sticky particle, thrust is occurred and is significantly increased than normal driving thrust increase by 400
More than ton, moment of torsion reduces and substantially slows down less than 10mm/min than normal moment of torsion reduction more than 600KNm, fltting speed, can determine whether soil
Storehouse mud lining；If increasing with shield body vibration in propulsion, cutterhead mud lining is can determine whether.
Shield is tunneled in the more stratum of sticky particle, all easy mud lining of usual cutterhead, Tu Cang, due to cutter head structure because
Element, determines that cutterhead mud cake easily betides bracket and cutter head panel center；Because the dregs mobility of native storehouse two bottom sides is owed
It is good, mud cake is also easy to produce at this.
5th, flushing operation
In shield tunneling process, according to Parameters variation, judge that determining that mud cake is possible position occurs, from flush points
Position.
(1) booster pump is opened
(2) cutterhead mud cake is rinsed
(3) native storehouse mud cake is rinsed
6th, sluice gun nozzle exchange
Booster pump is closed, the flexible pipe that is connected with DN25 ball valves of sluice gun end is removed, gun body outwards back-outed 200～
During 220mm, sluice gun DN50 ball valves are closed, gun body is continued to back-out, change nozzle；The gun body changed after nozzle is screwed into into reinforcing the heart
40～50mm, opens sluice gun DN50 ball valves, and gun body is screwed into, and to gun body residual thread 40mm, then by flexible pipe and rinses
The DN25 ball valves of rifle end are reconnected.
7th, flushing flow rate analysis and auxiliary sediment improvement
Varying number, the flushing hole of difference position can be opened according to driving needs during actual flushing, booster pump is centrifugal pump, from
The flow of heart pump pressure in low discharge is high, and pressure is low during big flow, and actual flow size is determined by the flush points opened, each
Flush points have independent DN25 ball valves control.The consumption of flushing water is different because of stratum, in the middle air slaking argillaceous siltstoue in Nanchang
In, dregs water-swellable, water absorption is big, and per ring, propulsion 40min or so, injects 8～10m of foam and water3。
The original design 6 road list pump list of shield supplies foam injection channel, the m of foam pressure-increasing pump maximum stream flow 1.23/ h, foam is maximum
Flow is 7.2 m3/ h, shield configures independent booster water pump lift 93m, flow 6m3/ h, in mudstone stratum foam underfed
When need to open pressurized water jet and bury storehouse.After synchronous jet wash, first wife's centrifugal pump is used in series with the newly-increased centrifugal pump of high pressure, and 2
Platform pump metered flow is consistent, 2 series connection of pumps lift 293m in rated head, and when lift is more than 300m, the flow of pump reduces,
The actual flow of pump is determined by ball valve quantity is opened；2～6 are opened in flush points position, is steeped according to the adjustment of dregs stream plasticity situation
Foam injection rate.
8th, maintenance conditions
(1) spare parties:Standby pipe fitting, sealing member, corresponding Work tool and standby electrical equipment；
(2) in flushing process, if finding, pipeline has seepage point, should immediately close booster pump, and changes corresponding pipe fitting；
(3) if there is electric fault, the chopper that should be closed immediately in chassis power cabinet, and failure electrical equipment is changed；
(4) shield carries out major tune-up maintenance after receiving to mud cake rinse-system.
Systems technology is prevented and treated based on the shield mud cake of synchronous jet in the present embodiment, Nanchang track traffic is successfully applied to
The interval shield-tunneling construction in the Biao Ding highways northern station of Line 1 civil engineering six～Bayi Square station；The target subway of Nanchang rail transit Line 2 three
Mansion station～Cui Yuan way stations, Cui Yuan way stations～institution of higher learning main road eastern station, institution of higher learning main road eastern station～Radix Peucedani way station shield are interval, successfully
Processed the incrusted problem of Tu Cang in Shield Construction Method Used, cutterhead, be shield-tunneling construction be smoothed out provide strong guarantor
Barrier.
The shooting-flow flushing apparatus Successful utilization to Nanchang track traffic Line 1 fourth highway northern station～Bayi Square station area
Between instance data it is as follows：In upper-soft lower-hard ground compound stratum, bottom is middle air slaking mudstone stratum, wide to Aug. 1st in right line driving
During 660～663 rings at, thrust only has 3～8mm/min more than 2000 tons, moment of torsion less than 2000KNm, fltting speed,
With a nozzle rinse cutterhead at native storehouse upper radius about 2.5m, now top soil pressure 1.5bar, cutterhead rotating speed 1.2～
1.4rpm, through the flushing of about 15min, thrust is reduced to 1800 tons, moment of torsion increases to 3100 KNm, fltting speed and exceed
22mm/min, continues to be rinsed in driving, is successfully processed cutterhead back mud cake.
The use of this device, evades open a position cleaning the mud cake excessive risk, high cost and the duration for bringing that opens a position that bring and prolongs
By mistake risk, achieves good economic benefit, there is good promotional value in shield-tunneling construction.
Claims (1)
1. system is prevented and treated based on the earth pressure balanced shield, EPBS mud cake of synchronous jet, it is characterised in that:State mud cake and prevent and treat system composition bag
Include:Panel stationary nozzle, cutterhead, shield body, native storehouse dividing plate, sluice gun, flush points position and pipeline connection, pressure duct and pipe fitting,
Water knockout drum, relief valve, pressure gauge, high pressure increase newly centrifugal pump, first wife's centrifugal pump, base, feed pipe, screw machine, controller, No. two
Chassis;
The structure of the sluice gun is including nozzle, to silk, ball valve, reinforcing the heart and gun body;
The panel stationary nozzle is fixed on the centre of cutterhead using welding, and sluice gun adopts thread connecting mode, peace
It is mounted on the reserved ball valve of native storehouse dividing plate, flushing is installed in flush points position and line connection and is robbed, sluice gun is installed to by reinforcing the heart
On ball valve, nozzle is threaded connection with gun body;The newly-increased centrifugal pump of high pressure is fixed on No. two chassis rear portions, and high pressure increases centrifugal pump newly
With base by bolt connection, on No. two chassis, the newly-increased centrifugal pump water inlet of high pressure is centrifuged water pump outlet pipe to tube chamber welds with base with first wife
Road is connected by pressure duct and pipe fitting, and pressure gauge, relief valve, safe valve outlet port connection are installed at the newly-increased outlet of centrifugal pump of high pressure
Water knockout drum in shield body, water knockout drum is combined by pipe fitting, and water knockout drum is with the newly-increased centrifugal pump of high pressure by pressure duct and pipe
Part connects;Water knockout drum draws 9 road flexible pipes, wherein 5 tunnels are connected on the ball valve of sluice gun, 4 tunnels are connected to the hydraulic pressure of revolving body and lead to
Pipeline joint, water under high pressure enters into cutterhead flange center contact by revolving body, then connects the center by pressure duct and pipe fitting and connect
Point and panel stationary nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621060762.1U CN206144564U (en) | 2016-09-19 | 2016-09-19 | System is prevented and treated to earth pressure balance shield mud cake based on synchronous efflux |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621060762.1U CN206144564U (en) | 2016-09-19 | 2016-09-19 | System is prevented and treated to earth pressure balance shield mud cake based on synchronous efflux |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206144564U true CN206144564U (en) | 2017-05-03 |
Family
ID=58618584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621060762.1U Active CN206144564U (en) | 2016-09-19 | 2016-09-19 | System is prevented and treated to earth pressure balance shield mud cake based on synchronous efflux |
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| CN (1) | CN206144564U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779647A (en) * | 2019-02-21 | 2019-05-21 | 山东大学 | The water jet auxiliary rock system and method being equipped on TBM |
| CN112113696A (en) * | 2020-09-27 | 2020-12-22 | 中铁工程装备集团有限公司 | Pressure measurement system for excavation cabin of heading machine and application method thereof |
-
2016
- 2016-09-19 CN CN201621060762.1U patent/CN206144564U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779647A (en) * | 2019-02-21 | 2019-05-21 | 山东大学 | The water jet auxiliary rock system and method being equipped on TBM |
| CN112113696A (en) * | 2020-09-27 | 2020-12-22 | 中铁工程装备集团有限公司 | Pressure measurement system for excavation cabin of heading machine and application method thereof |
| CN112113696B (en) * | 2020-09-27 | 2022-03-22 | 中铁工程装备集团有限公司 | Pressure measurement system for excavation cabin of heading machine and application method thereof |
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