CN204694704U - A kind of water-level fluctuation control device for karst collapse test and karst collapse test unit - Google Patents
A kind of water-level fluctuation control device for karst collapse test and karst collapse test unit Download PDFInfo
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- CN204694704U CN204694704U CN201520415751.XU CN201520415751U CN204694704U CN 204694704 U CN204694704 U CN 204694704U CN 201520415751 U CN201520415751 U CN 201520415751U CN 204694704 U CN204694704 U CN 204694704U
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- karst collapse
- environment simulator
- level fluctuation
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Abstract
The utility model discloses a kind of water-level fluctuation control device for karst collapse test.This device comprises the feed pipe supplied water to karst collapse environment simulator and the drainpipe of being discharged by the water in karst collapse environment simulator; Two branch drains that drainpipe comprises a drain header and is communicated with this drain header, drainpipe is provided with the governor motion regulating pressure in karst collapse environment simulator, this governor motion comprises timed sequence controller, solenoid directional control valve and two surplus valves, two surplus valves are arranged on two branch drains respectively, solenoid directional control valve is arranged at the junction of drain header and two branch drains, and timed sequence controller is connected with solenoid directional control valve.Also disclosing a kind of karst collapse test unit, comprising the tank for providing water source, karst collapse environment simulator and water-level fluctuation control device.The water-level fluctuation that device described in the utility model can realize different frequency and different wave amplitude in karst collapse environment simulator controls, and meets the karst collapse physical experiments of different frequency and fluctuating range.
Description
Technical field
The utility model relates to a kind of water-level fluctuation control device for karst collapse test and karst collapse test unit, karst collapse experimental technique field.
Background technology
Karst collapse test is a kind of effective ways being carried out karst collapse correlative study by inverting karst collapse forming process.Existing research shows, water is formed karst collapse has material impact, is therefore important factor for controlling by the ground water wave action affecting karst collapse in test.Traditional karst collapse physical experiments adopts the flowing of cistern water supply simulated groundwater, need constantly to carry out water filling to water tank, by opening and closing the fluctuation situation of entery and delivery port simulated groundwater, its weak point is: one, carry out manual control by the tensimeter of import and export, be difficult to the simulate effect realizing high frequency variable wave amplitude; Its two, water tank is bulky, mostly is fixed sturcture, be difficult to be elevated water tank, adjustable extent is little.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of water-level fluctuation control device for karst collapse test, and adopts the karst collapse test unit of this water-level fluctuation control device.The water-level fluctuation adopting water-level fluctuation control device described in the utility model can realize different frequency and different wave amplitude in karst collapse environment simulator controls, and meets the karst collapse physical experiments of different frequency and fluctuating range.
Water-level fluctuation control device for karst collapse test described in the utility model, comprises the feed pipe supplied water to karst collapse environment simulator, and by the drainpipe that the water in karst collapse environment simulator is discharged, wherein:
Described feed pipe is provided with variable frequency pump, flowrate control valve and tensimeter;
Two branch drains that described drainpipe comprises a drain header and is communicated with this drain header, described drainpipe is provided with the governor motion regulating pressure in karst collapse environment simulator, this governor motion comprises timed sequence controller, solenoid directional control valve and two surplus valves, described two surplus valves are arranged on two branch drains respectively, described solenoid directional control valve is arranged at the junction of drain header and two branch drains, and described timed sequence controller is connected with solenoid directional control valve.
Above-mentioned water-level fluctuation control device by arranging variable frequency pump and flowrate control valve in feed pipe, carry out current stabilization water supply in karst collapse environment simulator, and tensimeter is set between flowrate control valve and karst collapse environment simulator carries out pressure surge monitoring; Rising pipe arranges the governor motion be made up of timed sequence controller, solenoid directional control valve and two surplus valves, the commutation that solenoid directional control valve realizes being communicated with different branch drain is controlled by timed sequence controller, the surplus valve of different pressures critical value is adopted to combine again, form different pressures subtractive combination, the different fluctuating range of simulated groundwater, to realize the adjustment of different frequency and wave amplitude.
In technique scheme, described tensimeter is preferably digital display manometer, and feed pipe up-conversion water pump, flowrate control valve and the manometric order that arranges are followed successively by variable frequency pump, flowrate control valve and tensimeter from the inlet end of feed pipe to endpiece.Described solenoid directional control valve is preferably two position, three-way electromagnetic change valve; Two described surplus valves are two surplus valves with different oil pressure relief, to realize the overflow when different pressing force threshold of two branch drains.The maximum flow that the variable frequency pump selected provides preferably is greater than the maximum flow of test design, and the maximum flow that the flowrate control valve selected can provide preferably is greater than the maximum flow of test design.
In technique scheme, the exit of two branch drains also can be considered to accumulate a pipeline again, water outlet is flowed out by this pipeline.
The utility model also comprises the karst collapse test unit adopting above-mentioned water-level fluctuation control device, this karst collapse test unit comprises tank, karst collapse environment simulator and water-level fluctuation control device for providing water source, described water-level fluctuation control device comprises the feed pipe supplied water to karst collapse environment simulator and the drainpipe of being discharged by the water in karst collapse environment simulator, wherein:
Described feed pipe is provided with variable frequency pump, flowrate control valve and tensimeter;
Two branch drains that described drainpipe comprises a drain header and is communicated with this drain header, described drainpipe is provided with the governor motion regulating pressure in karst collapse environment simulator, this governor motion comprises timed sequence controller, solenoid directional control valve and two surplus valves, described two surplus valves are arranged on two branch drains respectively, described solenoid directional control valve is arranged at the junction of drain header and two branch drains, and described timed sequence controller is connected with solenoid directional control valve.
In the water-level fluctuation control device of above-mentioned karst collapse test unit, described tensimeter is preferably digital display manometer, and feed pipe up-conversion water pump, flowrate control valve and the manometric order that arranges are followed successively by variable frequency pump, flowrate control valve and tensimeter from the inlet end of feed pipe to endpiece.Described electromagnetic switch preferred valve is two position, three-way electromagnetic change valve, and two described surplus valves are two surplus valves with different oil pressure relief, to realize the overflow when different pressing force threshold of two branch drains.The maximum flow that the variable frequency pump selected provides preferably is greater than the maximum flow of test design, and the maximum flow that the flowrate control valve selected can provide preferably is greater than the maximum flow of test design.
In above-mentioned karst collapse test unit, arranging of tank can be same as the prior art.In order to realize recycling of water, preferably tank is arranged at the below of described karst collapse environment simulator, and the entrance of the feed pipe in water-level fluctuation control device is stretched into tank (being preferably positioned at the bottom of tank), the outlet of the drainpipe in water-level fluctuation control device is arranged at tank and can accepts in the scope of its water outlet; Like this, the water outlet of drainpipe directly sends into tank, realizes recycling of water.
In above-mentioned karst collapse test unit, described karst collapse environment simulator can be same as the prior art, preferred structure is as follows: karst collapse environment simulator comprises lower layer box body and upper layer box body placed on it, the connection both being realized by least one karst opening between described lower layer box body and upper layer box body; The outlet of the feed pipe in described water-level fluctuation control device is communicated with lower layer box body, and the entrance of the drainpipe in described water-level fluctuation control device is communicated with lower layer box body.Described lower layer box body is mainly used for splendid attire by the water in feed pipe, and upper layer box body is then the simulation filling of structure for ground according to real border ground and the laying of sensor.Wherein, karst opening between described lower layer box body and upper layer box body is exactly to realize the opening that lower layer box body is communicated with upper layer box body, for a karst opening, instantly when layer box body and upper layer box body are closed enclosure body structure, a under shed can be offered on the upper surface of lower layer box body, corresponding position, under shed position simultaneously on up and down, the bottom surface layer box body of upper layer box body offers a upper shed again, and preferred upper shed is identical with size with the shape of under shed; Described upper shed and under shed form described karst opening jointly.Instantly layer box body and upper layer box body are one of them face when being uncovered opened type body structure, and instantly can place the dividing plate that offers opening between layer box body and upper layer box body, the opening on this dividing plate is described karst opening.Instantly one in layer box body and upper layer box body is one of them face is uncovered opened type body structure, when another is closed enclosure body structure, can offer an opening with on the face of the uncovered upper layer box body (or lower layer box body) connected of lower layer box body (also may be upper layer box body), this opening is described karst opening.Quantity and the size of described karst opening convert according to simulated scenario.
In above-mentioned karst collapse test unit, when after karst collapse, in order to the water of karst collapse environment simulator and ground are discharged, need also to arrange discharge pipeline on lower layer box body, this discharge pipeline can also arrange operation valve to control the open and close state of discharge pipeline.
Compared with prior art, water-level fluctuation control device described in the utility model is reasonable in design, structure is simple, the input of regime flow is formed by variable frequency pump and flowrate control valve, regulated the pressure differential at the molten environment simulator two ends that subside according to certain frequency by timed sequence controller and solenoid directional control valve, two surplus valves, and then the water-level fluctuation realizing different frequency and different wave amplitude in karst collapse environment simulator controls, and meets the karst collapse physical experiments of different frequency and fluctuating range.Described karst collapse test unit, owing to adopting above-mentioned water-level fluctuation control device, the water-level fluctuation that thus can realize different frequency and different wave amplitude in karst collapse environment simulator controls; Further, special water trough design scheme, the water outlet of drainpipe directly sends into tank, realizes recycling of water.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of water-level fluctuation control device for karst collapse test described in the utility model;
Fig. 2 is the structural representation of karst collapse test unit described in the utility model.
Number in the figure is:
1 karst collapse environment simulator; The upper layer box body of 1-1; Layer box body under 1-2; 1-3 karst opening; 1-4 discharge pipeline; 1-5 operation valve; 2 feed pipes; 3 variable frequency pumps; 4 flowrate control valves; 5 tensimeters; 6 drainpipes; 6-1 drain header; 6-2 branch drain; 7 timed sequence controllers; 8 surplus valves; 9 solenoid directional control valves; 10 tanks.
Embodiment
Below in conjunction with concrete accompanying drawing, the utility model is described in further detail, to understand content of the present utility model better.
Fig. 1 is the structural representation of a kind of embodiment of water-level fluctuation control device for karst collapse test described in the utility model.As shown in Figure 1, the water-level fluctuation control device for karst collapse test described in the utility model, comprises the feed pipe 2 supplied water to karst collapse environment simulator 1, and by the drainpipe 6 that the water in karst collapse environment simulator 1 is discharged, wherein:
Described feed pipe 2 is disposed with variable frequency pump 3, flowrate control valve 4 and tensimeter 5 by inlet end to outlet;
Two branch drain 6-2 that described drainpipe 6 comprises a drain header 6-1 and is communicated with this drain header 6-1, described drainpipe 6 is provided with the governor motion regulating pressure in karst collapse environment simulator 1, this governor motion comprises timed sequence controller 7, solenoid directional control valve 9 and two surplus valves 8, described two surplus valves 8 are arranged on two branch drain 6-2 respectively, described solenoid directional control valve 9 is arranged at the junction of drain header 6-1 and two branch drain 6-2, described timed sequence controller 7 is connected with solenoid directional control valve 9, control solenoid directional control valve 9 by timed sequence controller 7 and then realize being communicated with different branch drain 6-2.
In above-mentioned embodiment, described tensimeter 5 preferably adopts digital display manometer 5, described electromagnetic switch preferred valve is two position, three-way electromagnetic change valve 9, described two surplus valves 8 are two surplus valves 8 with different oil pressure relief, to realize two branch drain 6-2 overflow when different pressing force threshold.
Fig. 2 is the structural representation of karst collapse test unit described in the utility model.As shown in Figure 2, karst collapse test unit described in the utility model comprises tank 10, karst collapse environment simulator 1 and water-level fluctuation control device for providing water source, wherein:
Described water-level fluctuation control device as shown in Figure 1, specifically comprise the feed pipe 2 supplied water to karst collapse environment simulator 1, and by the drainpipe 6 that the water in karst collapse environment simulator 1 is discharged, wherein: described feed pipe 2 is disposed with variable frequency pump 3, flowrate control valve 4 and tensimeter 5 by inlet end to outlet, two branch drain 6-2 that described drainpipe 6 comprises a drain header 6-1 and is communicated with this drain header 6-1, described drainpipe 6 is provided with the governor motion regulating pressure in karst collapse environment simulator 1, this governor motion comprises timed sequence controller 7, solenoid directional control valve 9 and two surplus valves 8, described two surplus valves 8 are arranged on two branch drain 6-2 respectively, described solenoid directional control valve 9 is arranged at the junction of drain header 6-1 and two branch drain 6-2, described timed sequence controller 7 is connected with solenoid directional control valve 9, control solenoid directional control valve 9 by timed sequence controller 7 and then realize being communicated with different branch drain 6-2,
The described below for providing the tank 10 at water source to be arranged at described karst collapse environment simulator 1, and the entrance of the feed pipe 2 in described water-level fluctuation control device stretches into tank 10 (preferably making entrance close to the bottom of tank 10), and the outlet of the drainpipe 6 in described water-level fluctuation control device is arranged at tank 10 and can accepts in the scope of its water outlet;
Described karst collapse environment simulator 1 comprises layer box body 1-2 and upper layer box body 1-1 placed on it, described lower layer box body 1-2 is one of them face is uncovered opened type body structure, and upper layer box body 1-1 is the closed enclosure body structure with 6 faces, on described layer box body 1-1 bottom surface on offer a karst opening 1-3, this karst opening 1-3 realizes lower connection between layer box body 1-2 and upper layer box body 1-1; The outlet of the feed pipe 2 in described water-level fluctuation control device is communicated with lower layer box body 1-2, the entrance of the drainpipe 6 in described water-level fluctuation control device is communicated with lower layer box body 1-2, also establish in the bottom of lower layer box body 1-2 and be connected with a discharge pipeline 1-4, this discharge pipeline 1-4 is arranged operation valve 1-5 to control the open and close state of discharge pipeline 1-4.Moltenly subside in environment simulator at this, described lower layer box body 1-2 is mainly used for splendid attire by the water in feed pipe 2, and upper layer box body 1-1 lays for the simulation filling of ground and sensor according to the structure of real border ground.
In embodiment described in above-mentioned Fig. 2, in described water-level fluctuation control device, described tensimeter 5 preferably adopts digital display manometer 5, described electromagnetic switch preferred valve is two position, three-way electromagnetic change valve 9, described two surplus valves 8 are two surplus valves 8 with different oil pressure relief, to realize two branch drain 6-2 overflow when different pressing force threshold.In described karst collapse environment simulator 1, quantity and the size of described karst opening 1-3 convert according to simulated scenario; Under in guarantee, layer box body 1-1 is communicated with lower layer box body 1-2, can carries out the precondition of karst collapse test, the structure of described upper layer box body 1-1 and lower layer box body 1-2 also can design as required.
Karst collapse test unit described in the utility model concrete operations: when on-test, first the flowrate control valve 4 on feed pipe 2 and the operation valve 1-5 on lower layer box body 1-2 is closed, according to vibration frequency and the amplitude of test design, the power on/off interval time of timed sequence controller 7 is set thus realizes vibration frequency control, the force value of two surplus valves 8 on drainpipe 6 is set, the pressure surge realizing the overflow under different pressures condition and then formed in karst collapse environment simulator 1; Then need setting flowrate control valve 4 and variable frequency pump 3 according to test, open the flowrate control valve 4 on feed pipe 2, water is injected the lower layer box body 1-2 of karst collapse environment simulator 1, opening pressure table 5 and timed sequence controller 7.When pipeline is connected to the branch drain 6-2 being provided with the higher surplus valve of pressure 8 by solenoid directional control valve 9, water level in karst collapse environment simulator 1 progressively rises to design mxm., when water level is higher than test design value, excretion opened by this surplus valve 8, and karst collapse environment simulator 1 water level is down to designated water level height; When solenoid directional control valve 9 commutation is connected to the branch drain 6-2 being provided with the lower surplus valve of pressure 8, because the water pressure in karst collapse environment simulator 1 is higher than new system pressure (emergent pressure of the surplus valve 8 that namely pressure is lower), then overflow excretion opened by surplus valve 8, karst collapse environment simulator 1 middle water level declines, until the pressure in karst collapse environment simulator 1 is not less than minimum design load.Thus, can realize rock karst collapse environment simulator 1 middle water level and fluctuate according to certain frequency and amplitude, the water overflowed then enters tank 10 by drainpipe 6, carries out secondary utilization (secondary preferably passes through precipitation before utilizing).
Claims (5)
1. the water-level fluctuation control device for karst collapse test, comprise the feed pipe (2) supplied water to karst collapse environment simulator (1), and by the drainpipe (6) that the water in karst collapse environment simulator (1) is discharged, it is characterized in that:
Described feed pipe (2) is provided with variable frequency pump (3), flowrate control valve (4) and tensimeter (5);
Two branch drains (6-2) that described drainpipe (6) comprises a drain header (6-1) and is communicated with this drain header (6-1), described drainpipe (6) is provided with the governor motion regulating pressure in karst collapse environment simulator (1), this governor motion comprises timed sequence controller (7), solenoid directional control valve (9) and two surplus valves (8), described two surplus valves (8) are arranged on two branch drains (6-2) respectively, described solenoid directional control valve (9) is arranged at the junction of drain header (6-1) and two branch drains (6-2), described timed sequence controller (7) is connected with solenoid directional control valve (9).
2. adopt the karst collapse test unit of water-level fluctuation control device described in claim 1, it is characterized in that: comprise the tank (10) for providing water source, karst collapse environment simulator (1) and water-level fluctuation control device, described water-level fluctuation control device comprises the feed pipe (2) supplied water to karst collapse environment simulator (1) and the drainpipe (6) of being discharged by the water in karst collapse environment simulator (1), wherein:
Described feed pipe (2) is provided with variable frequency pump (3), flowrate control valve (4) and tensimeter (5);
Two branch drains (6-2) that described drainpipe (6) comprises a drain header (6-1) and is communicated with this drain header (6-1), described drainpipe (6) is provided with the governor motion regulating pressure in karst collapse environment simulator (1), this governor motion comprises timed sequence controller (7), solenoid directional control valve (9) and two surplus valves (8), described two surplus valves (8) are arranged on two branch drains (6-2) respectively, described solenoid directional control valve (9) is arranged at the junction of drain header (6-1) and two branch drains (6-2), described timed sequence controller (7) is connected with solenoid directional control valve (9).
3. karst collapse test unit according to claim 2, it is characterized in that: described tank (10) is placed in the below of described karst collapse environment simulator (1), the entrance of the feed pipe (2) in described water-level fluctuation control device stretches into tank (10), and in described water-level fluctuation control device, the outlet of drainpipe (6) is positioned at the scope that tank (10) can accept its water outlet.
4. the karst collapse test unit according to Claims 2 or 3, it is characterized in that: described karst collapse environment simulator (1) comprises lower layer box body (1-2) and upper layer box body (1-1) placed on it, be communicated with both being realized by least one karst opening (1-3) between described lower layer box body (1-2) and upper layer box body (1-1); The outlet of the feed pipe (2) in described water-level fluctuation control device is communicated with lower layer box body (1-2), and the entrance of the drainpipe (6) in described water-level fluctuation control device is communicated with lower layer box body (1-2).
5. karst collapse test unit according to claim 4, is characterized in that: described lower layer box body (1-2) is also provided with discharge pipeline (1-4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520415751.XU CN204694704U (en) | 2015-06-16 | 2015-06-16 | A kind of water-level fluctuation control device for karst collapse test and karst collapse test unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520415751.XU CN204694704U (en) | 2015-06-16 | 2015-06-16 | A kind of water-level fluctuation control device for karst collapse test and karst collapse test unit |
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| CN204694704U true CN204694704U (en) | 2015-10-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897878A (en) * | 2015-06-16 | 2015-09-09 | 中国地质科学院岩溶地质研究所 | Water-level fluctuation control device for karst collapse test and karst collapse testing device |
| CN106018736A (en) * | 2016-05-10 | 2016-10-12 | 北京工业大学 | Device for testing surface collapse caused by urban underground pipeline leakage |
| CN110926985A (en) * | 2019-10-21 | 2020-03-27 | 中国科学院地质与地球物理研究所 | Water level fluctuation simulation device for water-rock interaction under water level change condition |
-
2015
- 2015-06-16 CN CN201520415751.XU patent/CN204694704U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897878A (en) * | 2015-06-16 | 2015-09-09 | 中国地质科学院岩溶地质研究所 | Water-level fluctuation control device for karst collapse test and karst collapse testing device |
| CN104897878B (en) * | 2015-06-16 | 2016-09-14 | 中国地质科学院岩溶地质研究所 | A kind of water-level fluctuation for karst collapse test controls device and karst collapse assay device |
| CN106018736A (en) * | 2016-05-10 | 2016-10-12 | 北京工业大学 | Device for testing surface collapse caused by urban underground pipeline leakage |
| CN106018736B (en) * | 2016-05-10 | 2018-02-02 | 北京工业大学 | Urban Underground pipeline seepage triggers the experimental rig of surface collapse |
| CN110926985A (en) * | 2019-10-21 | 2020-03-27 | 中国科学院地质与地球物理研究所 | Water level fluctuation simulation device for water-rock interaction under water level change condition |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20151007 Effective date of abandoning: 20160914 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20151007 Effective date of abandoning: 20160914 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |