CN107328897A - A kind of slip casting plugging tester and method for simulating karst water burst - Google Patents
A kind of slip casting plugging tester and method for simulating karst water burst Download PDFInfo
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- CN107328897A CN107328897A CN201710566070.7A CN201710566070A CN107328897A CN 107328897 A CN107328897 A CN 107328897A CN 201710566070 A CN201710566070 A CN 201710566070A CN 107328897 A CN107328897 A CN 107328897A
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Abstract
The invention discloses a kind of model test apparatus and method for simulating karst water burst slip casting closure, including pipe-line system, pressure-stabilizing water supply system, filling system, the part of data Collection ＆ Processing System four；Pipe-line system is made up of transparent organic glass pipe, metallic support, is connected at lucite tube import by high-pressure hose with stabilized voltage device, and high-pressure hose is provided with flow valve；Lucite tube exit gathers tank provided with pulp-water；Injected hole is provided with the middle part of lucite tube, injected hole is connected by high pressure feed pipe for mortar with filling system；Described data Collection ＆ Processing System includes being arranged on being used on lucite tube and monitors the pressure sensor I of water flow pressure, the electromagnetic flow transducer II for monitoring dynamic water-carrying capacity and be used to monitor the pressure sensor III of slurry pressure on the high pressure feed pipe for mortar；The pressure sensor I, II is connected with electromagnetic flow transducer with recording instrument without paper, the recording instrument without paper can record pressure in pipeline, the situation of change of flow in real time, and during slip casting closure, the IMAQ during slip casting is carried out by high-definition camera.
Description
Technical field
The present invention relates to a kind of model equipment for being used to move water slip casting closure experiment, and in particular to high in a kind of karst
The slip casting closure simulation test device and test method of flow velocity current.
Background technology
China can lava distribution area be vast accounts for 1/3rd of national area.In recent years, China Express Railway,
Highway, large water conservancy hydroelectric engineering enter the high-speed developing period, and a large amount of underground engineerings are built in karst regional implementation.Karst
The development of karst pipeline is universal, in underground engineering construction process, often discloses karst, easily induces karst and dashes forward
Discharge disaster, causes casualties, property loss.
A large amount of engineering practices prove that slurry injection technique can be obtained during this parakarst pipeline high flow rate moves the closure of water
Good plugging effect, but because karst develops irregular, karst type water burst has strong otherness, big hydraulic pressure, height
The characteristics of flow, strong supply property so that existing slip casting blocking technology blindness is big, depend on experience more, and slip casting closure is theoretical remote
Engineering practice is lagged far behind, is often resulted in during slip casting closure, injecting paste material wastes serious, and governance process is repeatedly, it is impossible to one
The problems such as secondary property is blocked completely.
Grouting model test method can really simulate complex geological structure, realize a variety of operating condition of test, be to set up note
Slurry closure mathematics and mechanical model, propose the theoretical important evidence of new blocking in flowing water.It may be said that grouting model test research is
Important means through being studied as grouting theory.
Domestic and international related researcher has carried out serial karst water burst slip casting sealing and plugging model experiment, but existing model is tried
Check system is primarily present problems with：
1st, the visualization during dynamic water slip casting can not be realized, the effect of intercoupling of slurries and dynamic water can not intuitively be seen
Examine, there are problems that "black box".
2nd, existing model test size is small, and experimental rig is relatively simple, simulates karst pipe using horizontal smooth straight road more
, there is larger difference with the occurrence status of actual karst in road, so that cause result of the test excessively to idealize, conclusion (of pressure testing)
It may not apply to Practical Project.
3rd, existing model test apparatus can not provide stable high flow rate circumstance of flowing water, move water flow velocity typically small and not
Uniformly, so as to cause experiment to continue to carry out, therefore experiment easily produces larger error.
4th, in process of the test, the simple experimental datas such as dynamic water-carrying capacity change can only be measured, it is impossible to in slip casting space
Velocity field, pressure field, grouting pressure, slurries deposition etc. critical data be acquired,
5th, existing model test grouting device can not change, and can only realize the simulation of single operating mode, and test repeatability is poor,
Experimental rig utilization rate is relatively low.
The content of the invention
In order to solve deficiencies of the prior art, the present invention provides a kind of visual karst water burst slip casting
Pilot model apparatus is blocked, this device can provide stable high flow rate circumstance of flowing water, the higher karst network of validity
And carry out the Data Collective of Parameters of pinpoint accuracy.
It is a further object of the present invention to provide a kind of visual karst water burst slip casting closure test method.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of model test apparatus for simulating karst water burst slip casting closure, including pipe-line system, pressure-stabilizing water supply system,
Filling system, the part of data Collection ＆ Processing System four；
Described pipe-line system is made up of transparent organic glass pipe, metallic support, is passed through at the lucite tube import
High-pressure hose is connected with stabilized voltage device, and the high-pressure hose is provided with flow valve；The lucite tube exit is provided with
Slurry-hydromining collection tank；Injected hole is provided with the middle part of the lucite tube, the injected hole passes through high pressure feed pipe for mortar and filling system phase
Even；Described data Collection ＆ Processing System includes being arranged on the pressure sensing for being used on lucite tube monitoring water flow pressure
Device I, the electromagnetic flow transducer II for monitoring dynamic water-carrying capacity and on the high pressure feed pipe for mortar be used for monitor slurries
The pressure sensor III of pressure；The pressure sensor I, II is connected with electromagnetic flow transducer with recording instrument without paper, described
Recording instrument without paper can record pressure in pipeline, the situation of change of flow in real time, and during slip casting closure, pass through high definition
Camera carries out the IMAQ during slip casting.
Further, described stabilized voltage device includes pressure-bearing water pot, booster pump, water-supply-pipe and pressure controller, institute
State booster pump by water-supply-pipe with pressure-bearing water pot to be connected, the pressure controller gathers the pressure value of pressure-bearing water pot, passes through number
According to the operation of booster pump described in line traffic control.
Further, described filling system includes two grouting pumps, valve and high pressure feed pipe for mortar；Two described slip castings
Pump slip casting into lucite tube by high-pressure transfusion tube, described high-pressure transfusion tube is provided with valve.
Further, the lucite tube is transparent material, slurries is realized in process of the test work is coupled with current
Overall process is visual.
Further, can be according to karst in Practical Project in terms of the lucite tube is modularized design, dismounting
Parameter, to the length of lucite tube, diameter, degree of crook, the deposit in pipe etc. is modified replacement, so as to realize pair
The simulation of different karsts.
Further, the lucite tube is supported by metallic support.
Further, the metallic support is provided with height regulation switch, height adjustable, so as to high by adjusting bracket
Spend to adjust the level angle of machine glass piping, it is ensured that accurate simulation of the lucite tube to actual karst.
Further, the pressure-bearing water pot is made up of stainless steel, can undertake 10MPa water pressures.
Further, the pressure-bearing water pot is provided with inlet opening, apopore, relief valve, and the inlet opening passes through pressure hose
It is connected with booster pump, described apopore is connected with lucite tube；Relief valve is provided with described pressure-bearing water pot.
Further, the pressure controller is placed on artesian water tank skin, and it is connected by data wire with booster pump.
Further, the pressure controller monitors pressure-bearing water pot hydraulic pressure size in real time, and control booster pump is opened and closed,
So as to realize the water source supply of steady pressure.
Further, the apopore of the pressure-bearing water pot is connected by pressure hose with the flow valve.
Further, the flow valve can form stable high flow rate using the dynamic water flow velocity of servo control technique control
Dynamic water supply.
Further, the pressure sensor uses 16 high precision collecting cards and newest with electromagnetic flow transducer
USB communication modes.
Further, the recording instrument without paper is directly connected by data wire with computer, can Real-time Monitoring Data change, and
The data and curves such as pressure-time change curve, flow-time changing curve are directly drawn, can be exported in a tabular form, just
In Data Collection.
Further, described recording instrument without paper has 30 passages, and collection is required while fully meeting multiple data.
Further, the grouting pump is attached by the slurry-feeding hole of high-pressure slip-casting pipe and lucite tube.
Further, the grouting pump is two same size grouting pumps, so as to realize that cement-waterglass etc. is double
The liquid requirement of slip casting simultaneously.
Further, the grouting pump can realize constant flow slip casting, thus by adjust two grouting pumps flow come
Dual slurry ratio is controlled, the two fluid grouting of different slip casting ratios is realized.
Further, high pressure feed pipe for mortar is provided with pressure sensor, the grouting pressure change during monitoring slip casting.
Further, the slurry-hydromining collection tank is connected by pressure hose with lucite tube outlet, can be to passive water
The slurries washed away are reclaimed, so as to measure retention ratio of the slurries in lucite tube.
Further, the slurry-hydromining collection tank is made up of transparent organic glass, and its capacity is 3 cubic metres.
In order to solve technical problem present in prior art, gushed the invention also discloses a kind of visual karst
Water slip casting blocks test method, according to engineering geological condition, determines the developmental condition of karst in Practical Project, so as to examination
Lucite tube in experiment device is customized and changed, and the pipeline simulation of more accurate karst is formed, by autonomous
The pressure-stabilizing water supply system of research and development provides the river channels similar to engineering, selects different grouting parameters and injecting paste material, debugging
Good hydraulic pressure sensor and flow sensor, open grouting pump and enter to take action water slip casting, measure each Parameters variation during slip casting in real time
Situation, continues slip casting until dynamic water is blocked completely, the slurries capacity in measurement slurry-hydromining collection tank completes experiment.
Specifically：After karst type discharge disaster occurs for tunnels and underground engineering, by physical prospecting, probing mode is simultaneously tied
Related geologic information is closed, the developmental condition of karst is determined, so that the average diameter of preliminary clear and definite karst, bending
State, angle of inclination, the parameter such as pipe roughness is reduced according to the basic parameter of determination according to certain similar proportion, is made
Lucite pipeline, pipeline completes pipe-line system after making by connecting valve connection, booster pump is opened, to pressure controller
Hydrodynamic pressure value is set, flow valve is adjusted, so as to form the river channels of stable high flow rate, chooses and determines different slip casting pressures
Then power, flow rate of grouting, injecting paste material, the parameter such as biliquid ratio opens recording instrument without paper, debugs each hydraulic pressure sensor and stream
Quantity sensor, opens high-definition camera and carries out IMAQ, opens Double-liquid mud-injection pump and carries out slip casting closure experiment, during slip casting
Paperless tests instrument measures each sensing data in real time, the data and curves such as pressure, flow is drawn, when slurries block karst pipe completely
Behind road, the slurry volume in measurement slurry-hydromining collection tank according to actual grouting amount, calculates slurries retention ratio, completes experiment, pass through
Result of the test, conceptual design is blocked to slip casting in Practical Project and grouting parameter determines to provide accurate foundation.
The current country there is no the model test apparatus blocked for the slip casting of karst type water burst
The beneficial effects of the invention are as follows：
1st, this experimental provision, can be realized by the disperse states of slip casting module simulation slurries by pressure-stabilizing water supply module
Water supply is moved in the voltage stabilizing of high flow capacity, and lucite tube carries out more real simulation to karst form, so that this experiment is filled
The good simulation for the dynamic water slip casting that can realize karst water burst is put, to set up slip casting closure mathematical modeling and proposing more to be defined
True grouting theory provides foundation, and strong reference is provided for engineering slip casting closure.
2nd, karst pipe-line system uses transparent organic glass pipe, coordinates high-definition camera being capable of accurate recording slip casting closure
During slurries and dynamic water coupling condition and closure during slurries disperse state, largely solve slip casting process
In " black box problem ".
3rd, this experimental rig can be to the diameter of karst, case of bending, angle of inclination, tube wall degree of roughness, pipeline
The parameters such as interior deposit are modified and changed, so as to press close to true engineering state, obtain more real experimental data,
Change the present situation that existing model assay systems simulate karst only with horizontal straight tube.
4th, the stabilized voltage device of this experiment coordinates flow valve to provide voltage stabilizing, the dynamic water of constant current speed to pipe-line system,
And pressure can be allowed to more press close to true environment with flow speed value with dynamic regulation.
5th, flow rate of grouting can be freely adjusted by two grouting pumps, carries out two fluid grouting, and the slip casting ratio of dual slurry
Example is adjustable, therefore relies on this experimental provision to carry out different slip casting flow velocitys, different grouting amounts, the karst pipe of different biliquid ratios
Road blocks test simulation, and the grouting parameter in Practical Project can be optimized.
6th, it is simple to operate in terms of experimental rig uses modularized design, dismounting, it can be recycled, so as to be examined
Consider the influence between crossed factors, improve test efficiency, reduce the experimentation cost once tested.
7th, experimental rig designs multiple hydraulic pressure sensors and electromagnetic flowmeter along lucite tube, can monitor pipeline
Interior prolongs the stroke pressure loss of flood peak, and the changes in flow rate situation in each region can describe the slurry in karst according to data above
Liquid-water coincidence state, foundation is provided for slurry-water coincidence theory.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the general illustration of the present invention
Fig. 2 is stabilized voltage device front view of the present invention
Fig. 3 is stabilized voltage device side view of the present invention
Wherein：1 is booster pump, and 2 be pressure controller, and 3 be pressure-bearing water pot, and 4 be pressure-bearing water pot inlet opening, and 5 be artesian water
Tank apopore, 6 be relief valve, and 7 be flow valve, and 8 be lucite tube, and 9 be that pipeline is led directly to, and 10 be metallic support, and 11 be height
Regulation switch, 12 be grouting pump, and 13 be high pressure feed pipe for mortar, and 14 be pipe valve, and 15 be pressure sensor, and 16 be that Electromagnetic Flow is passed
Sensor, 17 be hydraulic pressure sensor, and 18 be recording instrument without paper, and 19 be slurry-hydromining collection tank.
Embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
Below by instantiation, the present invention will be further elaborated, the description below merely to explain the present invention,
Its content is not defined.
A kind of model test apparatus for simulating karst slip casting closure, including booster pump 1 as shown in Figure 1, Figure 2, Figure 3 shows,
Pressure controller 2, pressure-bearing water pot 3, pressure-bearing water pot inlet opening 4, pressure-bearing water pot apopore 5, relief valve 6, flow valve 7, organic glass
Glass pipe 8, pipeline straight-through 9, metallic support 10, height regulation switch 11, grouting pump 12, high pressure feed pipe for mortar 13, pipe valve 14, pressure
Force snesor 15, electromagnetic flow transducer 16, hydraulic pressure sensor 17, recording instrument without paper 18, slurry-hydromining collection tank 19.
As shown in Figure 1, planting the slip casting plugging tester of simulation karst water burst and including pipe-line system (flow valve 7, has
Machine glass tube 8, pipeline straight-through 9, metallic support 10), pressure-stabilizing water supply system (booster pump 1, pressure controller 2, pressure-bearing water pot 3),
Filling system (grouting pump 12, high pressure feed pipe for mortar 13, pipe valve 14), data Collection ＆ Processing System (pressure sensor 15, electricity
Magnetic flow transducers 16, hydraulic pressure sensor 17, recording instrument without paper 18) four parts composition
Lucite tube 8 as shown in Figure 1 is positioned on metallic support 10, and flow is provided with the import of lucite tube 10
Valve 7；Flow valve 7 is connected by high pressure water transport pipe with pressure-bearing water pot apopore 5, and pressure-bearing water pot inlet opening 4 passes through high pressure water transport pipe
It is connected with booster pump 1, the pressure controller 2 is placed on pressure-bearing water pot 3, can gather the pressure value of pressure-bearing water pot 3, leads to
The operation of booster pump 1 described in data line traffic control is crossed, pressure-stabilizing water supply system can provide the dynamic water of steady pressure into pipe-line system；
The middle part of lucite tube 8 is provided with injected hole, and the injected hole is connected by high pressure feed pipe for mortar 13 with grouting pump 12, two notes
Stock pump 12 can control flow rate of grouting, realize two fluid grouting, and can adjust biliquid ratio；In addition lucite tube exit is set
There is slurry-hydromining collection tank 19.According to experiment needs, the lucite tube 7 is provided with multiple pressure for being used to monitor water flow pressure
Sensor 17, the electromagnetic flow transducer 16 for monitoring dynamic water-carrying capacity；In addition high pressure feed pipe for mortar is provided with monitoring slurry pressure
Pressure sensor 15, pressure sensor 15,17 is connected with electromagnetic flow transducer 16 with recording instrument without paper 18, paperless tests
Instrument 18 can obtain related pressure and data on flows in real time, and can output data in a tabular form.
As shown in figure 1, the lucite tube 7 is transparent material, realize slurries in process of the test couples with current
The overall process of effect is visual；
As shown in Figure 1, can be according to karst pipe in Practical Project in terms of the lucite tube 7 is modularized design, dismounting
The parameter in road, to the length of lucite tube, diameter, degree of crook, the deposit in pipe etc. is modified replacement, so as to realize
Simulation to different karsts.
As shown in figure 1, the metallic support 10 is provided with height regulation switch 11, height adjustable, so as to pass through regulation
Support height adjusts the level angle of machine glass piping 7, it is ensured that the accurate mould of 7 pairs of actual karsts of lucite tube
Intend.
The pressure-bearing water pot 3 is made up of stainless steel as shown in Figure 1, Figure 2, Figure 3 shows, can undertake 10MPa water pressures.
As shown in Figure 1, Figure 2, Fig. 3, the pressure controller 2 is placed on artesian water tank skin, and it passes through data wire and booster pump
It is connected, in real time the hydraulic pressure size of monitoring pressure-bearing water pot 3, control booster pump 1 is opened and closed, so as to realize that the water source of steady pressure is supplied
Give.
As shown in figure 1, the flow valve 7 is using the dynamic water flow velocity of servo control technique control, it coordinates pressure-stabilizing water supply system
Flowing pressure and dynamic water flow velocity can accurately be controlled.
As shown in figure 1, the pressure sensor 15 and electromagnetic flow transducer 16 are using 16 high precision collecting cards and most
New USB communication modes.
As shown in figure 1, the recording instrument without paper 18 is gathered while there are 30 data channel to fully meet multiple data
It is required that, the recording instrument without paper 18 is directly connected by data wire with computer, can Real-time Monitoring Data change, and directly draw pressure
The data and curves such as power-time changing curve, flow-time changing curve, and can export in a tabular form, it is easy to data to receive
Collection.
As shown in figure 1, the grouting pump 12, which is two same size grouting pumps, can realize constant flow slip casting, pass through regulation
The flow of two grouting pumps controls the injection ratio of dual slurry, realizes the two fluid grouting of different slip casting ratios.
As shown in figure 1, the slurry-hydromining collection tank 19 is connected by pressure hose with the outlet of lucite tube 7, can be to quilt
The slurries that dynamic water washes away are reclaimed, so as to measure retention ratio of the slurries in lucite tube.
In order to solve technical problem present in prior art, different crustal stress bars can be loaded the invention also discloses one kind
The slurry arteries and veins of part-ground interface strength test method
According to engineering geological condition, the developmental condition of karst in Practical Project is determined, so that in experimental rig
Lucite tube is customized and changed, and forms the pipeline simulation of more accurate karst, passes through the voltage stabilizing of independent research
Water system provides the river channels similar to engineering, selects different grouting parameters and injecting paste material, has debugged hydraulic pressure sensing
Device and flow sensor, open grouting pump and enter to take action water slip casting, measure each Parameters variation situation during slip casting in real time, lasting note
Slurry is until dynamic water is blocked completely, and the slurries capacity in measurement slurry-hydromining collection tank completes experiment.
Specifically：After karst type discharge disaster occurs for tunnels and underground engineering, by physical prospecting, probing mode is simultaneously tied
Related geologic information is closed, the developmental condition of karst is determined, so that the average diameter of preliminary clear and definite karst, bending
State, angle of inclination, the parameter such as pipe roughness is reduced according to the basic parameter of determination according to certain similar proportion, is made
Lucite pipeline, pipeline completes pipe-line system after making by connecting valve connection, and water burst is determined according to Practical Project
The parameter such as pressure and flow velocity, opens booster pump, and hydrodynamic pressure value is set to pressure controller, adjusts flow valve, setting is accordingly
Flow speed value forms the river channels of stable high flow rate, using different grouting pressures, flow rate of grouting, injecting paste material, biliquid ratio
The parameters such as example, then open recording instrument without paper, debug each hydraulic pressure sensor and flow sensor, open high-definition camera and carry out
IMAQ, opens Double-liquid mud-injection pump and starts slip casting closure experiment, paperless tests instrument measures each sensing in real time during slip casting
Device data, draw the data and curves such as pressure, flow, after slurries block karst completely, in measurement slurry-hydromining collection tank
Slurry volume, according to actual grouting amount, calculates slurries retention ratio, experiment is completed, by result of the test, to slip casting in Practical Project
Block conceptual design and grouting parameter determines to provide accurate foundation.
As can be seen from the above description, the application the above embodiments realize following technique effect：
1st, this experimental provision, can be realized by the disperse states of slip casting module simulation slurries by pressure-stabilizing water supply module
Water supply is moved in the voltage stabilizing of high flow capacity, and lucite tube carries out more real simulation to karst form, so that this experiment is filled
The good simulation for the dynamic water slip casting that can realize karst water burst is put, to set up slip casting closure mathematical modeling and proposing more to be defined
True grouting theory provides foundation, and strong reference is provided for engineering slip casting closure.
2nd, karst pipe-line system uses transparent organic glass pipe, coordinates high-definition camera being capable of accurate recording slip casting closure
During slurries and dynamic water coupling condition and closure during slurries disperse state, largely solve slip casting process
In " black box problem ".
3rd, this experimental rig can be to the diameter of karst, case of bending, angle of inclination, tube wall degree of roughness, pipeline
The parameters such as interior deposit are modified and changed, so as to press close to true engineering state, obtain more real experimental data,
Change the present situation that existing model assay systems simulate karst only with horizontal straight tube.
4th, the stabilized voltage device of this experiment coordinates flow valve to provide voltage stabilizing, the dynamic water of constant current speed to pipe-line system,
And pressure can be allowed to more press close to true environment with flow speed value with dynamic regulation.
5th, flow rate of grouting can be freely adjusted by two grouting pumps, carries out two fluid grouting, and the slip casting ratio of dual slurry
Example is adjustable, therefore relies on this experimental provision to carry out different slip casting flow velocitys, different grouting amounts, the karst pipe of different biliquid ratios
Road blocks test simulation, and the grouting parameter in Practical Project can be optimized.
6th, it is simple to operate in terms of experimental rig uses modularized design, dismounting, it can be recycled, so as to be examined
Consider the influence between crossed factors, improve test efficiency, reduce the experimental cost once tested.
7th, experimental rig designs multiple hydraulic pressure sensors and electromagnetic flowmeter along lucite tube, can monitor pipeline
Interior prolongs the stroke pressure loss of flood peak, and the changes in flow rate situation in each region can describe the slurry in karst according to data above
Liquid-water coincidence state, foundation is provided for slurry-water coincidence theory.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, not to present invention protection model
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deform still within protection scope of the present invention that creative work can make.
Claims (10)
1. a kind of model test apparatus for simulating karst water burst slip casting closure, it is characterised in that including pipe-line system, voltage stabilizing
Water system, filling system, the part of data Collection ＆ Processing System four；
Described pipe-line system is made up of transparent organic glass pipe, metallic support, and high pressure is passed through at the lucite tube import
Flexible pipe is connected with stabilized voltage device, and the high-pressure hose is provided with flow valve；The lucite tube exit is provided with slurry-water
Gather tank；Injected hole is provided with the middle part of the lucite tube, the injected hole is connected by high pressure feed pipe for mortar with filling system；Institute
The data Collection ＆ Processing System stated include be arranged on lucite tube on be used for monitor water flow pressure pressure sensor I,
For monitoring the electromagnetic flow transducer II of dynamic water-carrying capacity and being used to monitor slurry pressure on the high pressure feed pipe for mortar
Pressure sensor III；The pressure sensor I, II is connected with electromagnetic flow transducer with recording instrument without paper, described without paper
Recorder can record pressure in pipeline, the situation of change of flow in real time, and during slip casting closure, pass through high-definition camera
Head carries out the IMAQ during slip casting.
2. a kind of model test apparatus for simulating karst water burst slip casting closure as claimed in claim 1, it is characterised in that
Described stabilized voltage device includes pressure-bearing water pot, booster pump, water-supply-pipe and pressure controller, and the booster pump passes through water-supply-pipe
It is connected with pressure-bearing water pot, the pressure controller gathers the pressure value of pressure-bearing water pot, passes through booster pump described in data line traffic control
Operation.
3. a kind of model test apparatus for simulating karst water burst slip casting closure as claimed in claim 1, it is characterised in that
Described filling system includes two grouting pumps, valve and high pressure feed pipe for mortar；Two described grouting pumps pass through high-pressure transfusion tube
The slip casting into lucite tube, described high-pressure transfusion tube is provided with valve.
4. a kind of model test apparatus for simulating karst water burst slip casting closure as claimed in claim 1, it is characterised in that
The lucite tube is transparent material, and slurries are realized in process of the test and the overall process of current coupling is visual.
5. a kind of model test apparatus for simulating karst water burst slip casting closure as claimed in claim 1, it is characterised in that
The lucite tube is modularized design, in terms of dismounting, can be according to the parameter of karst in Practical Project, to lucite
Deposit in length, diameter, degree of crook and the pipe of pipe is modified replacement.
6. a kind of model test apparatus for simulating karst water burst slip casting closure as claimed in claim 1, it is characterised in that
The lucite tube is supported by metallic support；The metallic support height adjustable.
7. a kind of model test apparatus for simulating karst water burst slip casting closure as claimed in claim 1, it is characterised in that
The pressure-bearing water pot is made up of stainless steel, can undertake 10MPa water pressures.
8. a kind of model test apparatus for simulating karst water burst slip casting closure as claimed in claim 1, it is characterised in that
The pressure-bearing water pot is provided with inlet opening, apopore and relief valve, and the inlet opening is connected by pressure hose with booster pump, described
Apopore be connected with lucite tube；Relief valve is provided with described pressure-bearing water pot.
9. a kind of model test apparatus for simulating karst water burst slip casting closure as claimed in claim 1, it is characterised in that
The pressure controller is placed on artesian water tank skin, and it is connected by data wire with booster pump；The pressure controller is real-time
Pressure-bearing water pot hydraulic pressure size is monitored, control booster pump is opened and closed, so as to realize the water source supply of steady pressure.
10. a kind of visual karst water burst slip casting closure test method, it is characterised in that
After karst type discharge disaster occurs for tunnels and underground engineering, by physical prospecting, drill mode and combine related geology
Data, determines the developmental condition of karst, so that the average diameter of preliminary clear and definite karst, case of bending, angle of inclination
And pipe roughness, reduced according to the basic parameter of determination according to certain similar proportion, make lucite pipeline, pipeline
Pipe-line system is completed by connecting valve connection after making, booster pump is opened, hydrodynamic pressure value is set to pressure controller, is adjusted
Amount of restriction valve, so as to form the river channels of stable high flow rate, chooses and determines different grouting pressures, flow rate of grouting, slip casting
Material, the parameter such as biliquid ratio, then opens recording instrument without paper, debugs each hydraulic pressure sensor and flow sensor, opens high
Clear camera carries out IMAQ, opens Double-liquid mud-injection pump and carries out slip casting closure experiment, paperless tests instrument is real during slip casting
When measure each sensing data, draw the data and curves such as pressure, flow, after slurries block karst completely, measurement slurry-
Slurry volume in hydromining collection tank, according to actual grouting amount, calculates slurries retention ratio, experiment is completed, by result of the test, to reality
Slip casting closure conceptual design and grouting parameter determine to provide accurate foundation in the engineering of border.
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