CN207231751U - Slurry shield machine circulation system experimental rig - Google Patents
Slurry shield machine circulation system experimental rig Download PDFInfo
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- CN207231751U CN207231751U CN201721259641.4U CN201721259641U CN207231751U CN 207231751 U CN207231751 U CN 207231751U CN 201721259641 U CN201721259641 U CN 201721259641U CN 207231751 U CN207231751 U CN 207231751U
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Abstract
It the utility model is related to a kind of slurry shield machine circulation system experimental rig.Be intended to overcome at this stage experimental provision muddy water circulation system test capability is limited, be difficult to simulate complex geological condition the defects of the problem of.The utility model include with teeter chamber cutter disc system, into teeter chamber convey material soil body delivery system, into teeter chamber convey liquid material muddy water circulation system；Cutter disc system includes the rotary head being installed in babinet, and muddy water circulation system includes liquid material material storage container and the enters mud pipe being connected with the material storage container, sludge pipe, and enters mud pipe, sludge pipe are equipped with valve with the flow and flow direction in control piper.Advantage is：By building slurry shield circulation system structure, slag performance, deslagging performance, system pressure stability etc. can be taken on the muddy water for influencing circulation system in tunneling process to test, realize the working condition of circulation system in a variety of stratum tunneling processes of the simulation including hard-soft heterogeneous ground.
Description
Technical field
Shield-tunneling construction technical field of measurement and test is the utility model is related to, more particularly to a kind of slurry shield machine circulation system experiment
Device.
Background technology
Slurry balance shield machine is that certain density mud is pumped into the muddy water cabin of slurry shield, with knife cutting
Pressure and concentration of hydraulic mixture in cutter groove inflow muddy water cabin, muddy water cabin gradually increase the native slag come with underground water, and and excavation face
Earth pressure and water pressure reach equilibrium state, forming fluid-tight mud film in excavation face carries out excavation face to stablize excavation.
The stabilization of excavation face is, it is necessary to control the mud amount discharged into the muddy water amount and dregs amount in muddy water cabin and from muddy water cabin in order to control
Balance, the muddy water circulation system of shield machine is the critical system for realizing this function.The performance of circulation system, which directly affects, digs
Into the stability of process, therefore, it is necessary to a kind of slurry shield machine circulation system experimental rig be designed, to influencing circulation system work(
The relevant parameter of energy is studied, to lift the overall performance of slurry shield machine.
At present, the domestic slurry shield test device developed is more using the digging process of shield-tunneling construction as research object, there is no
The experimental provision studied specifically for circulation system performance.And traditional experimental rig is generally simplified by native case, shield machine
Model, form into sludge pipe and ancillary equipment, and the working method tunneled by using shield machine simplified model into native case is completed
Simulation, such testing stand preferably simulates the digging process of face in slurry shield driving, but there are some following office
Limit：
1st, it is limited to circulation system Research Ability.Such testing stand lays particular emphasis on the research of face digging process in driving,
And circulation system is simple in structure, simply realize mud into, row function, there are with true shield circulation system structure larger
Difference, it is difficult to realize that circulation system takes the experiment of the key performances such as slag, deslagging；
2nd, the stratigraphic type that can be simulated is limited.Since test platform structure performance is limited, simplified knife cutting ability is weaker, and one
As can only simulate the driving on sandy soil stratum, it is difficult to carry out the driving experiment of hard-soft heterogeneous ground or sand-pebble layer, thus be difficult to
Test ability of the circulation system discharge containing rock slag or cobble mud；
3rd, it is difficult to simulate high hydraulic pressure slurry shield construction.Since such testing stand needs to simulate propulsion and knife cutting mistake
Journey, there are more relative movement part, causes experimental rig overall sealing performance limited, to river-crossing tunnel, seabed tunnel etc.
Shield-tunneling construction there are high hydraulic condition is difficult to simulate.
The content of the invention
The purpose of this utility model is exactly to have to solve experimental provision muddy water circulation system test capability in the prior art
The problem of the defects of limiting, being difficult to simulate complex geological condition.
The concrete scheme of the utility model is：
Design a kind of slurry shield machine circulation system experimental rig, including the cutter disc system with teeter chamber, stir to described
Mix the soil body delivery system of indoor conveying material, into the teeter chamber convey liquid material muddy water circulation system；The knife
Disc system includes the rotary head being installed in babinet, and transmission main shaft is provided with the rotary head, the transmission main shaft
Other end installation drives its rotating power source, and ring baffle, the ring baffle and the rotation are provided with the babinet
Cutterhead it is adjacent using by teeter chamber's zoning to expect chamber and liquid material chamber admittedly；The soil body delivery system includes holding vessel, the storage
The bottom for depositing tank is equipped with discharge port, the feeding mouth of the discharge port connection screw conveyor, the discharge port of the screw conveyor
In intracavitary is expected admittedly with described, pressure balance regulating element is equipped between the teeter chamber and the holding vessel；The muddy water circulation
System includes liquid material material storage container and the enters mud pipe being connected with the material storage container, sludge pipe, and the enters mud pipe, sludge pipe are equipped with valve
Door is with the flow and flow direction in control piper.
Preferably, the liquid material material storage container includes size-mixing tank and sedimentation basin；The enters mud pipe from the size-mixing tank, via
Into after dredge pump and main valve F1, some bypass lines are connected to being connected with the liquid material chamber, are equipped with the bypass line
Valve；The sludge pipe from the liquid material chamber, via main valve F2 after connect sedimentation basin；The muddy water circulation system into
It is additionally provided between mud pipe and sludge pipe and turns to circuit, the steering circuit includes the first bypass pipe and the second bypass pipe, and described first
One end of the neighbouring bypass line of the import connecting valve F1 of bypass pipe, connecting valve F2 is adjacent to one end of sedimentation basin, institute for outlet
One end of the neighbouring size-mixing tank of the import connecting valve F1 of the second bypass pipe is stated, connecting valve F2 is adjacent to the one of liquid material chamber for outlet
Hold, valve F3 is installed on first bypass pipe, valve F4 is installed on second bypass pipe.
Preferably, the sludge pipe is equipped with sludge pump.
Preferably, the pressure balance regulating element includes the linker for connecting the teeter chamber and storage room, described
Linker is equipped with valve F10.
Preferably, in the setting angle less than 45 degree between the screw conveyor and horizontal plane.
Preferably, weighing unit is installed below the sedimentation basin and size-mixing tank.
Preferably, the transmission main shaft is hollow shaft, and endoporus one end of hollow shaft connects muddy water circulation system via pipeline,
The other end connects the teeter chamber through the rotary head, and the pipeline is equipped with valve F7.
The utility model further includes electric-control system, and circuit connects between the electric-control system and each valve, to control respective tube
The keying in road.
Using a kind of slurry shield machine circulation system test method of experimental rig in the utility model, including following step
Suddenly：
（1）Material is quenched：Solid material is through the quenched material strength grain to simulation shield machine scene of screw conveyor stirring
Degree, the solid material granularity must not exceed the 1/2 of spoil disposal bore, and mud is more than 1.1g/cm in mud pit by proportion3,
Viscosity be preferably greater than 15s it is quenched after, object material dosing flow into teeter chamber rotating blade side, mud via circulation system flow into stir
Mix the opposite side of rotating blade in room；
（2）Stirring simulation：Control the rotating speed of rotary head corresponding with cutter head of shield machine rotating speed, open main pipeline, it is described
The material of rotary head both sides mixes during cutterhead is rotating, and material is discharged by sludge pipe, is precipitated to sedimentation basin, utilizes title
Weight platform monitors converted quantity of the sedimentation basin weight with the time, contrasts the difference of different simulated muds or the Different Strata variable quantity,
Draw corresponding deslagging efficiency；
（3）Pipeline measures：System wise pipe valve is opened, the keypoint part progress 1.2MPa to cutterhead, muddy water cabin~
2.5MPa high pressure washings, measure each flush pipe pressure change, to assess different simulated muds, pressure, flow velocity to stagnant row's sillar
Disposal ability；
（4）Deflecting is rinsed：Change pipeline flow-direction using bypass line combination related valve, circulation system is driven in the wrong direction, with clear
Blocking and deposition except pipeline and muddy water cabin, the sillar content and size that can be discharged when measuring different simulated muds, flow velocity, and
Influence to mud pressure and slush pump.
The mud raw material includes at least any two materials in clay, bentonite, natrium carbonicum calcinatum.
The beneficial effects of the utility model are：
The device is made of dregs delivery system, cutter disc system, muddy water circulation system.The dregs delivery system connects knife
Proportioned dregs in dregs storage bin, can be transported to cutterhead front portion, drive of the cutterhead in cutter-devices system by disc system babinet
Dynamic lower rotation, the dregs that the muddy water in muddy water cabin and dregs delivery system input is mixed, and dregs is circulated by circulation system to be arranged
Go out to sedimentation basin.The device, can be on influencing circulation system by building slurry shield circulation system structure in tunneling process
Muddy water is taken slag performance, deslagging performance, system pressure stability etc. and is tested, and is cut by being pre-configured with close to actual formation
The dregs of the soil body is cut, realizes the work of circulation system in a variety of stratum tunneling processes of the simulation including hard-soft heterogeneous ground
Situation.
Brief description of the drawings
Fig. 1 is the front view of the utility model structure；
Fig. 2 is that the utility model original operating state pipeline flows to schematic diagram；
Fig. 3 is that another working status pipeline of the utility model flows to schematic diagram；
Fig. 4 is that the utility model cleaning state pipeline flows to schematic diagram；
The names of the parts in figure：1. sedimentation basin；2. weighing unit；3. size-mixing tank；4. into dredge pump；5. enters mud pipe；6. sludge pipe；
7. sludge pump；8. cutterhead driving device；9. transmission main shaft；10. ball valve；11. bypass pipe；12. babinet；13. teeter chamber；14. knife
Disk；15. linker；16. holding vessel；17. screw conveyor.
Embodiment
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it will be appreciated that described herein excellent
Select embodiment to be only used for describing and explaining the present invention, be not used to limit the utility model.
Embodiment 1
A kind of slurry shield machine circulation system experimental rig, referring to Fig. 1 to Fig. 4, including the cutterhead 14 with teeter chamber 13
System, into teeter chamber 13 convey material soil body delivery system, into teeter chamber 13 convey liquid material muddy water circulation system
System；14 system of cutterhead includes the rotary head 14 being installed in babinet 12, is provided with transmission main shaft 9 on rotary head 14, is driven
The other end installation of main shaft 9 drives its rotating power source, and ring baffle, ring baffle and rotary head are provided with babinet 12
14 it is adjacent using by 13 zoning of teeter chamber to expect chamber and liquid material chamber admittedly；Soil body delivery system includes holding vessel 16, the bottom of holding vessel 16
Portion is equipped with discharge port, and discharge port connects the feeding mouth of screw conveyor 17, the discharge outlet of screw conveyor 17 in solid material chamber
It is interior, pressure balance regulating element is equipped between teeter chamber 13 and holding vessel 16；Muddy water circulation system include liquid material material storage container and with storage
The enters mud pipe 5 of material pond connection, sludge pipe 6, enters mud pipe 5, sludge pipe 6 are equipped with valve with the flow and flow direction in control piper.
Liquid material material storage container includes size-mixing tank 3 and sedimentation basin 1；Enters mud pipe 5 is from size-mixing tank 3, via into dredge pump 4 and main valve
After F1, some bypass lines are connected to being connected with liquid material chamber, valve is equipped with bypass line；Sludge pipe 6 from liquid material chamber,
Via connection sedimentation basin 1 after main valve F2；It is additionally provided between the enters mud pipe 5 of muddy water circulation system and sludge pipe 6 and turns to circuit, is turned
Include the first bypass pipe and the second bypass pipe to circuit, the one of the neighbouring bypass line of the import connecting valve F1 of the first bypass pipe
End, connecting valve F2 is adjacent to one end of sedimentation basin 1 for outlet, the neighbouring size-mixing tank 3 of the import connecting valve F1 of the second bypass pipe
One end, outlet connecting valve F2 are provided with valve F3 on one end of liquid material chamber, the first bypass pipe, are installed on the second bypass pipe
There is valve F4.
Sludge pipe 6 is equipped with sludge pump 7.
Pressure balance regulating element includes the linker 15 of connection teeter chamber 13 and storage room, and valve is equipped with linker 15
Door F10.
It is in the setting angle less than 45 degree between screw conveyor 17 and horizontal plane.
Weighing unit 2 is installed below sedimentation basin 1 and size-mixing tank 3.
Transmission main shaft is hollow shaft, and endoporus one end of hollow shaft connects muddy water circulation system via pipeline, and the other end passes through
Rotary head 14 connects teeter chamber 13, and pipeline is equipped with valve F7.
Electric-control system is further included, circuit connects between electric-control system and each valve, with the keying of the corresponding pipeline of control.
With reference to the test method of the utility model, include the following steps：
（1）Material is quenched：Solid material stirs the quenched material strength to simulation shield machine scene through screw conveyor 17
Granularity, the solid material granularity must not exceed the 1/2 of spoil disposal bore, and mud is more than 1.1g/ in mud pit by proportion
Cm3, viscosity be preferably greater than 15s it is quenched after, object material dosing flow into 13 rotating blade side of teeter chamber, mud is via circulation system
Flow into the opposite side of rotating blade in teeter chamber 13；
（2）Stirring simulation：Control the rotating speed of rotary head 14 corresponding with cutter head of shield machine rotating speed, open main pipeline, rotation
The material of 14 both sides of rotor disk mixes during cutterhead 14 is rotating, and material is discharged by sludge pipe 6, is precipitated to sedimentation basin 1, profit
Converted quantity of 1 weight of sedimentation basin with the time is monitored with weighing unit 2, contrasts different simulated muds or the Different Strata variable quantity
Difference, draws corresponding deslagging efficiency；
（3）Pipeline measures：System wise pipe valve is opened, the keypoint part progress 1.2MPa to cutterhead 14, muddy water cabin~
2.5MPa high pressure washings, measure each flush pipe pressure change, assess different simulated muds, pressure, flow velocity to the place of stagnant row's sillar
Reason ability；
（4）Deflecting is rinsed：Change pipeline flow-direction using bypass line combination related valve, circulation system is driven in the wrong direction, with clear
Blocking and deposition except pipeline and muddy water cabin, the sillar content and size that can be discharged when measuring different simulated muds, flow velocity, and
Influence to mud pressure and slush pump.
The mud raw material includes at least any two materials in clay, bentonite, natrium carbonicum calcinatum.
In the utility model, soil body delivery system is by dregs holding vessel 16, screw conveyor 17, linker 15 and ball valve
F10 is formed.Screw conveyor 17 is into 16 soil-discharging port of Tu Kou connection dregs holding vessel connection cutterhead, 14 anterior babinet 12, by spiral
Conveyer 17, can by proportioned dregs in dregs holding vessel 16 as desired constant speed quantitative to be delivered to cutterhead 14 anterior,
The effect of linker 15 is that holding dregs holding vessel 16 is consistent with muddy water lock pressure power, dregs ability is smoothly inputted cutterhead 14
Front space.14 system of cutterhead is made of cutterhead driving device 8, transmission main shaft 9, babinet 12, cutterhead 14, cutterhead driving device 8
Drive cutterhead 14 to rotate by transmission main shaft 9, the soil body that soil body delivery system inputs is mixed in muddy water cabin with muddy water.Muddy water
Circulation system by sedimentation basin 1, separator for mud and water, size-mixing tank 3, into dredge pump 4, enters mud pipe 5, sludge pipe 6, sludge pump 7, ball valve 10 with
And dregs is continuously carried transport by mud to sedimentation basin 1, cooperates with soil body delivery system by bypass pipe composition, muddy water circulatory system
Mud in muddy water cabin is set to keep dynamic balance state.
Before experiment, according to the geological condition for stratum, suitable experiment dregs is configured, and add appropriate bentonite and stir
Dregs holding vessel 16 is added after mixing uniformly, to ensure that it is smooth that screw conveyor 17 is run, is then sealed dregs holding vessel 16.Examination
When testing, first start circulation system and cutterhead 14 drives, then start screw conveyor 17, testing stand realizes the circulation of circulation system
Operation.
When testing stand is run, such as Fig. 1, opens valve F1, F2, F5, F6, closes valve F3, F4, F7-F9, can simulate just
Often circulation system working condition during driving.During this period, monitoring 1 weight of sedimentation basin with the converted quantity of time, contrasts different in real time
The difference of simulated mud or the Different Strata variable quantity, it can be deduced that corresponding deslagging efficiency；
In operational process, such as Fig. 2, valve F1, F5-F9 are opened, closes valve F3, F4, using being arranged on 14 center of cutterhead
With the flushing line in muddy water cabin, high pressure washing is carried out to the keypoint part of cutterhead 14, muddy water cabin, each flushing pipe pressure is measured and becomes
Change, assess different simulated muds, pressure, flow velocity to the disposal ability of stagnant row's sillar；
After whole work process, such as Fig. 3, valve F1, F2 are closed, remaining valve is opened, circulation system is driven in the wrong direction, can
To remove the blocking of pipeline and muddy water cabin and deposition.By preparing the dregs of different sillar contents and size, normal driving is simulated
When circulation system working status, the sillar content and size that can be discharged when measuring different simulated muds, flow velocity, and to mud pressure
The influence of power and slush pump.
In the course of work, when carrying out high pressure washing to the keypoint part of cutterhead 14, muddy water cabin, high pressure washing pipe flushing pressure
It can be continuously adjusted, to contrast flushing effect, pressure range is 1.2MPa~2.5MPa.
Solid material granularity must not exceed the 1/2 of spoil disposal bore, and mud raw material is preferably discharged situation according to solid material and adopted
Allocated in proportion with additives such as clay, bentonite, natrium carbonicum calcinatums, mud raw material proportion is preferably greater than 1.1g/cm3, viscosity is suitable
More than 15s, design parameter is adjusted according to experimental result, in the hope of reaching optimal deslagging effect.
Finally it should be noted that：The above descriptions are merely preferred embodiments of the present invention, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify the technical solution described in foregoing embodiments, or to which part technical characteristic
Carry out equivalent substitution.Where within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (8)
- A kind of 1. slurry shield machine circulation system experimental rig, it is characterised in that：Including with teeter chamber（13）Cutter disc system, To the teeter chamber（13）The soil body delivery system of interior conveying material, to the teeter chamber（13）The muddy water of interior conveying liquid material Circulation system；The cutter disc system includes being installed on babinet（12）Interior rotary head（14）, the rotary head（14）Upper peace Equipped with transmission main shaft（9）, the transmission main shaft（9）The other end installation drive its rotating power source, the babinet（12）It is interior Ring baffle, the ring baffle and the rotary head are installed（14）It is adjacent with by the teeter chamber（13）Zoning is solid material Chamber and liquid material chamber；The soil body delivery system includes holding vessel（16）, the holding vessel（16）Bottom be equipped with discharge port, it is described Discharge port connects screw conveyor（17）Feeding mouth, the screw conveyor（17）Discharge outlet in expecting chamber admittedly with described It is interior, the teeter chamber（13）With the holding vessel（16）Between be equipped with pressure balance regulating element；The muddy water circulation system includes Liquid material material storage container and the enters mud pipe being connected with the material storage container（5）, sludge pipe（6）, the enters mud pipe（5）, sludge pipe（6）On set There is valve with the flow and flow direction in control piper.
- 2. slurry shield machine circulation system experimental rig as claimed in claim 1, it is characterised in that：The liquid material material storage container bag Include size-mixing tank（3）And sedimentation basin（1）；The enters mud pipe（5）From the size-mixing tank（3）Rise, via into dredge pump（4）With main valve F1 Afterwards, some bypass lines are connected to being connected with the liquid material chamber, valve is equipped with the bypass line；The sludge pipe （6）From the liquid material chamber, via main valve F2 after connect sedimentation basin（1）；In the enters mud pipe of the muddy water circulation system（5）With Sludge pipe（6）Between be additionally provided with and turn to circuit, the steering circuit includes the first bypass pipe and the second bypass pipe, and described first bypasses One end of the neighbouring bypass line of the import connecting valve F1 of pipe, connecting valve F2 is adjacent to sedimentation basin for outlet（1）One end, it is described The neighbouring size-mixing tank of the import connecting valve F1 of second bypass pipe（3）One end, outlet connecting valve F2 adjacent to the one of liquid material chamber Hold, valve F3 is installed on first bypass pipe, valve F4 is installed on second bypass pipe.
- 3. slurry shield machine circulation system experimental rig as claimed in claim 1, it is characterised in that：The sludge pipe（6）On Equipped with sludge pump（7）.
- 4. slurry shield machine circulation system experimental rig as claimed in claim 1, it is characterised in that：The pressure balance is adjusted Element includes connecting the teeter chamber（13）With the linker of storage room（15）, in the linker（15）It is equipped with valve F10.
- 5. slurry shield machine circulation system experimental rig as claimed in claim 4, it is characterised in that：The screw conveyor （17）In the setting angle less than 45 degree between horizontal plane.
- 6. slurry shield machine circulation system experimental rig as claimed in claim 2, it is characterised in that：In the sedimentation basin（1） And size-mixing tank（3）Lower section is provided with weighing unit（2）.
- 7. slurry shield machine circulation system experimental rig as claimed in claim 1, it is characterised in that：The transmission main shaft is sky Mandrel, endoporus one end of hollow shaft connect muddy water circulation system via pipeline, and the other end passes through the rotary head（14）Connection The teeter chamber（13）, the pipeline is equipped with valve F7.
- 8. slurry shield machine circulation system experimental rig as claimed in claim 1, it is characterised in that：Further include electric-control system, Circuit connects between the electric-control system and each valve, with the keying of the corresponding pipeline of control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721259641.4U CN207231751U (en) | 2017-09-28 | 2017-09-28 | Slurry shield machine circulation system experimental rig |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721259641.4U CN207231751U (en) | 2017-09-28 | 2017-09-28 | Slurry shield machine circulation system experimental rig |
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| CN207231751U true CN207231751U (en) | 2018-04-13 |
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| CN201721259641.4U Active CN207231751U (en) | 2017-09-28 | 2017-09-28 | Slurry shield machine circulation system experimental rig |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576477A (en) * | 2017-09-28 | 2018-01-12 | 中铁隧道局集团有限公司 | Slurry shield machine circulation system experimental rig and coordinative experiments method |
| CN109061122A (en) * | 2018-09-28 | 2018-12-21 | 中铁隧道局集团有限公司 | A kind of mud takes slag ability measurement device and measurement method |
| CN114112299A (en) * | 2021-11-22 | 2022-03-01 | 中国安全生产科学研究院 | Tailing deposit test system |
-
2017
- 2017-09-28 CN CN201721259641.4U patent/CN207231751U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576477A (en) * | 2017-09-28 | 2018-01-12 | 中铁隧道局集团有限公司 | Slurry shield machine circulation system experimental rig and coordinative experiments method |
| CN107576477B (en) * | 2017-09-28 | 2024-05-07 | 中铁隧道局集团有限公司 | Slurry shield machine circulation system test device and matched test method |
| CN109061122A (en) * | 2018-09-28 | 2018-12-21 | 中铁隧道局集团有限公司 | A kind of mud takes slag ability measurement device and measurement method |
| CN109061122B (en) * | 2018-09-28 | 2023-11-03 | 中铁隧道局集团有限公司 | Device and method for measuring slag carrying capacity of slurry |
| CN114112299A (en) * | 2021-11-22 | 2022-03-01 | 中国安全生产科学研究院 | Tailing deposit test system |
| CN114112299B (en) * | 2021-11-22 | 2024-01-30 | 中国安全生产科学研究院 | Tailing deposit test system |
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