CN202870079U - Fracture-opening-variable multi-effect coupling critical collapse experimental research device - Google Patents
Fracture-opening-variable multi-effect coupling critical collapse experimental research device Download PDFInfo
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- CN202870079U CN202870079U CN 201220447798 CN201220447798U CN202870079U CN 202870079 U CN202870079 U CN 202870079U CN 201220447798 CN201220447798 CN 201220447798 CN 201220447798 U CN201220447798 U CN 201220447798U CN 202870079 U CN202870079 U CN 202870079U
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Abstract
The utility model discloses a fracture-opening-variable multi-effect coupling critical collapse experimental research device which is capable of realizing karst ground collapse experimental research under the conditions of different fracture openings and hydrodynamic force combinations, confirming the collapse critical condition of an experimental model, thus establishing a collapse metewand scale. The device comprises a groundwater subsurface erosion simulating system, a fracture opening controlling system, a rain falling simulating system and a real-time monitoring system, wherein the groundwater subsurface erosion simulating system is a box with a rectangular-ambulatory-plane groove and of a upper-end opening structure, the inner groove and the outer groove are communicated by dense small holes and a fracture opening is arranged in the bottom of the inner groove; the fracture opening controlling system is arranged at the lower port of the fracture opening and composed of a movable cover plate and an adjusting mechanism; the rain falling simulating system is fixedly arranged above the port of the inner groove; and the real-time monitoring system is composed of a camera arranged at the key position of the model and a monitoring computer connected with the camera.
Description
Technical field
The utility model relates to the critical experimental study device that subsides of the variable multiscale coupling of a kind of fracture opening, the control that is used for covered karst district, karst region Foundation Karst surface collapse is processed, and obtains karst ground subsidence venture analysis and treatment effect detection reference data under the equal conditions.
Background technology
China's karst blazons, but takes place frequently take the geologic hazard of lava difference corrosion as the basis, and railway, highway, building etc. are annual high because of the casualty loss that ground collapse causes.Along with the fast development of China Express Railway, the harm that karst ground subsidence causes also sharply increases.Complicacy and latent property because of the Karst Features growth, affect the many factors of karst ground subsidence in addition, be difficult to site test and test the means of carrying out systematic study as to karst ground subsidence, thereby can't further investigate critical condition and the coupling effect of karst ground subsidence, control to karst ground subsidence is processed, so far the application technology benchmark neither one system, ripe still, no matter be design analysis application technology or the research of construction quality standard, all be difficult to obtain breakthrough, the development of karst remedial technology meets with serious bottleneck.
In the research of existing karst ground, model test mainly concentrates on rainfall Vertical Infiltration and fixing two aspects that subside, aperture crack.In order to shorten the test period, the fracture opening of test simulation is usually all larger, its research conclusion mainly concentrates on a certain great soil group and whether subsides to reach under water Vertical Infiltration condition and last aspect the length, but can not answer problem---the critical condition of subsiding of whether subsiding under minimum Karst Fissures aperture and hydrodynamic force (the reaching other) combination condition.Thereby, can't set up the metewand yardstick that subsides in the practical application.
Critical condition is processed the control of karst ground subsidence, the benchmark that is the judge of regulation whether design analysis also is whether the regulation purpose reaches opinion scale, and based on complicacy and the latent property of covered karst corrosion fissure, on-the-spot general desirable, a large amount of, the Cyclic test study condition that do not possess, therefore, by the analysis to the example that subsides in a large number, make up the only way that desirable, that parameter can accurately be monitored, past renaturation shop experiment Study system has just become to carry out the karst ground subsidence systematic study.Comprehensive existing test model and research purpose, model construction key link are to possess single condition continuously toward the condition of renaturation experimental test and the condition of a plurality of influence factor coupling effect experimental tests that subside.
The utility model content
Technical problem to be solved in the utility model provides the critical experimental study device that subsides of the variable multiscale coupling of a kind of fracture opening, can realize the karst ground subsidence experimental study under different fracture openings and the hydrodynamic force combination condition, and the critical condition of subsiding of confirmed test model, thereby set up the metewand yardstick that subsides.
The technical scheme that its technical matters that solves the utility model adopts is as follows:
The critical experimental study device that subsides of the variable multiscale coupling of fracture opening, it is characterized in that it comprises: underground water is dived and is lost simulation system, for having the casing of hollow groove and upper end open structure, its inside groove is communicated with by intensive aperture with water jacket, in the inside groove bottom slotted opening is set; The fracture opening control system is arranged at and hides the slotted opening lower port, by movably cover plate and governor motion consist of; Simulation system falls in rain, is fixedly installed on inside groove port top; Real-time monitoring system is made of the camera that is arranged on the model key position and the monitoring computer that is attached thereto.
The beneficial effects of the utility model are, can realize the karst ground subsidence experimental study under different fracture openings and the hydrodynamic force combination condition, and the critical condition of subsiding of confirmed test model, thereby set up the metewand yardstick that subsides, to provide be that the design analysis of whether renovating is passed judgment on the opinion scale whether benchmark and regulation purpose reach for the control of karst ground subsidence is processed.Compared with prior art has following outstanding feature: utilize hollow groove structure and fracture opening control system effectively to realize the test simulation of the latent erosion process of seepage flow; Improve test efficiency, reduced working strength, be convenient to the collection of Test Information; The test unit dirigibility is strong, can be according to the research needs, expand latent erosion under the multiple environmental baselines such as rain falls, Suction, the drying and watering cycle simulation of subsiding; Effectively realized the test simulation that covered karst subsides under the different fracture opening conditions, checking has also been set up the theory that there is the critical fissure limit in over-laying-karst Collapse accordingly, and test unit can be applied to during different soil estimate with the karst ground subsidence Research And Engineerings of Fracture Width combination condition; Simple and practical, sturdy and durable, good stability.
Description of drawings
This instructions comprises following three width of cloth accompanying drawings:
Fig. 1 is the structural representation of the critical experimental study device that subsides of the variable multiscale coupling of the utility model fracture opening;
Fig. 2 is the synoptic diagram of hollow groove structure in the critical experimental study device that subsides of the variable multiscale coupling of the utility model fracture opening
Fig. 3 is the structural drawing of fracture opening governor motion in the critical experimental study device that subsides of the variable multiscale coupling of the utility model fracture opening.
Parts shown in the figure and corresponding mark: inside groove 10a, water jacket 10b, inner panel 11, outside plate 12, base plate 13, slotted opening 14, seepage flow hole 15, guide rail 16, cover plate 20, screw rod 21, nut 22, spray equipment 30, piezometric tube 40, camera 41.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
With reference to Fig. 1, the critical experimental study device that subsides of the variable multiscale coupling of fracture opening of the present utility model mainly comprises following a few major part:
One, underground water is dived and is lost simulation system, and for having the casing of hollow groove and upper end open structure, its inside groove 10a is communicated with by intensive aperture with water jacket 10b, in inside groove 10a bottom slotted opening 14 is set.Fill soil sample in the inside groove 10a during test, the water in the water filling simulated groundwater water level in the water jacket 10b, water jacket 10b infiltrates by intensive aperture and fills soil sample.At water jacket 10b edge draining and water supply installation are set, control inside groove 10a, water jacket 10b water level satisfy the test needs.
Two, fracture opening control system is arranged at and hides slotted opening 14 lower port, is made of movably cover plate 20 and governor motion, and the relative position by movable cover plate 20 and slotted opening 14 lower port changes fracture opening, and the warranty test precision.
Three, simulation system falls in rain, is fixedly installed on inside groove 10a port top, by hollow steel pipe several sprinkler tips, simulated rainfall is installed to the interval in length and breadth.In the hollow steel pipe porch flowmeter is installed, is controlled rainfall amount and rainfall intensity, satisfy the needs of different condition of raining.
Four, real-time monitoring system is made of the camera 41 that is arranged on the model key position and the monitoring computer that is attached thereto, and utilizes monitoring of software, and the continuous variation of real-time monitored model key position has improved work efficiency, has alleviated the artificial observation burden.
The utility model compared with prior art has following outstanding feature:
1, utilize hollow groove structure and fracture opening control system effectively to realize the test simulation of the latent erosion process of seepage flow; Improve test efficiency, reduced working strength, be convenient to the collection of Test Information;
2, the test unit dirigibility is strong, can be according to the research needs, expand latent erosion under the multiple environmental baselines such as rain falls, Suction, the drying and watering cycle simulation of subsiding;
3, utilize the fracture opening control system effectively to realize the test simulation that covered karst subsides under the different fracture opening conditions, checking has also been set up the theory that there is the critical fissure limit in over-laying-karst Collapse accordingly, and test unit can be applied to during different soil estimate with the karst ground subsidence Research And Engineerings of Fracture Width combination condition.
4, simple and practical, sturdy and durable, good stability.
Fig. 1 and Fig. 2 show a kind of concrete structure of described casing and governor motion, and namely casing is welded by inner panel 11, outside plate 12 and base plate 13, and inner panel 11 adopts sieve tray, and slotted opening 14 is arranged on base plate 13 central parts.Be fixedly installed pair of guide rails 16 in slotted opening 14 both sides on the base plate 13, cover plate 20 is mounted thereon.Governor motion is made of the screw rod 21 that matches, nut 22, and wherein nut 22 forms a fixed connection with cover plate 20.On the base plate 13 along inside groove (10a) in length and breadth to, along the spaced apart seepage flow hole 15 that is provided with of water jacket 10b hoop, each seepage flow hole 15 is connected with the piezometric tube 40 that is fixedly installed on casing one side by flexible pipe respectively, by the variation of piezometric tube 40 Real-Time Monitoring inside soil body water levels.With reference to Fig. 1, camera 41 is arranged on the inside groove 10a upper port and cover plate outside below 20 usually.
Some principles of the above critical experimental study device that subsides of the variable multiscale coupling of the utility model fracture opening that just explains through diagrams, be not be the utility model to be confined to shown in and in described concrete structure and the scope of application, so every corresponding modify that might be utilized and equivalent all belong to the claim that the utility model is applied for.
Claims (5)
1. the critical experimental study device that subsides of the variable multiscale coupling of fracture opening, it is characterized in that it comprises: underground water is dived and is lost simulation system, for having the casing of hollow groove and upper end open structure, its inside groove (10a) is communicated with by intensive aperture with water jacket (10b), in inside groove (10a) bottom slotted opening (14) is set; The fracture opening control system is arranged at and hides slotted opening (14) lower port, by movably cover plate (20) and governor motion consist of; Simulation system falls in rain, is fixedly installed on inside groove (10a) port top; Real-time monitoring system is made of the camera that is arranged on the model key position (41) and the monitoring computer that is attached thereto.
2. the critical experimental study device that subsides of the variable multiscale coupling of fracture opening as claimed in claim 1, it is characterized in that: described casing is made of inner panel (11), outside plate (12) and base plate (13), inner panel (11) is sieve tray, and slotted opening (14) is arranged on base plate (13) central part.
3. the critical experimental study device that subsides of the variable multiscale coupling of fracture opening as claimed in claim 2 is characterized in that: described base plate (13) is upper to be fixedly installed pair of guide rails (16) in slotted opening (14) both sides, cover plate (20) is mounted thereon; Described governor motion is made of the screw rod that matches (21), nut (22), and wherein nut (22) forms a fixed connection with cover plate (20).
4. the critical experimental study device that subsides of the variable multiscale coupling of fracture opening as claimed in claim 2, it is characterized in that: described base plate (13) upper along inside groove (10a) in length and breadth to, along the spaced apart seepage flow hole (15) that is provided with of water jacket (10b) hoop, each seepage flow hole (15) is connected with the piezometric tube that is fixedly installed on casing one side (40) by flexible pipe respectively.
5. the critical experimental study device that subsides of the variable multiscale coupling of fracture opening as claimed in claim 2 is characterized in that: described camera (41) is arranged on inside groove (10a) upper port and the following outside of cover plate (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220447798 CN202870079U (en) | 2012-09-04 | 2012-09-04 | Fracture-opening-variable multi-effect coupling critical collapse experimental research device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220447798 CN202870079U (en) | 2012-09-04 | 2012-09-04 | Fracture-opening-variable multi-effect coupling critical collapse experimental research device |
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| CN202870079U true CN202870079U (en) | 2013-04-10 |
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| CN 201220447798 Withdrawn - After Issue CN202870079U (en) | 2012-09-04 | 2012-09-04 | Fracture-opening-variable multi-effect coupling critical collapse experimental research device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830217A (en) * | 2012-09-04 | 2012-12-19 | 中铁二院工程集团有限责任公司 | Device for studying cracking-degree-variable multi-effect coupled critical collapse test |
| CN103645297A (en) * | 2013-12-13 | 2014-03-19 | 中国神华能源股份有限公司 | Simulation device for karst collapses |
| CN107238693A (en) * | 2017-06-30 | 2017-10-10 | 重庆工程职业技术学院 | A kind of underground water leakage induces the experimental rig and its application method of surface collapse |
| CN108806450A (en) * | 2018-05-30 | 2018-11-13 | 河海大学 | Modularized test device for covering karst water movement and solute transport process |
-
2012
- 2012-09-04 CN CN 201220447798 patent/CN202870079U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830217A (en) * | 2012-09-04 | 2012-12-19 | 中铁二院工程集团有限责任公司 | Device for studying cracking-degree-variable multi-effect coupled critical collapse test |
| CN102830217B (en) * | 2012-09-04 | 2015-10-28 | 中铁二院工程集团有限责任公司 | The critical experimental study device that subsides of the variable multiscale coupling of fracture opening |
| CN103645297A (en) * | 2013-12-13 | 2014-03-19 | 中国神华能源股份有限公司 | Simulation device for karst collapses |
| CN103645297B (en) * | 2013-12-13 | 2015-11-11 | 中国神华能源股份有限公司 | The analogue means of karst collapse |
| CN107238693A (en) * | 2017-06-30 | 2017-10-10 | 重庆工程职业技术学院 | A kind of underground water leakage induces the experimental rig and its application method of surface collapse |
| CN108806450A (en) * | 2018-05-30 | 2018-11-13 | 河海大学 | Modularized test device for covering karst water movement and solute transport process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130410 Effective date of abandoning: 20151028 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |