CN202914104U - Water retention mining simulation system - Google Patents
Water retention mining simulation system Download PDFInfo
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- CN202914104U CN202914104U CN 201220194727 CN201220194727U CN202914104U CN 202914104 U CN202914104 U CN 202914104U CN 201220194727 CN201220194727 CN 201220194727 CN 201220194727 U CN201220194727 U CN 201220194727U CN 202914104 U CN202914104 U CN 202914104U
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- 238000005065 mining Methods 0.000 title abstract description 14
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- 239000011229 interlayer Substances 0.000 claims description 15
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Abstract
The utility model discloses a water retention mining simulation system, which comprises a model frame, a water layer simulation device and a monitoring device, wherein the water layer simulation device is mounted on the model frame and comprises a water inlet pipe, a water tank bracket, a water tank, a water layer water pipe, a water layer water pipe water inlet valve, a water layer water pipe flow meter, a water layer water pipe water outlet valve, a rock layer simulation layer, a water layer tank body and a water layer water level meter. The water retention mining simulation system can be used for simulating the coexistence state of a rock layer and water in a water layer before mining; and the rock layer at the lower part forms a fracture field after mining, so that the flowing process of the water in the water layer, the seepage process of the water in the fracture field and the overall structure formed by the water layer are changed by mining influence.
Description
Technical field
The utility model relates to a kind of analogue means for the coal mining research field, relates in particular to a kind of simulation system of water-retaining production.
Background technology
The development of and technology theoretical along with Modern coal mines exploitation is carried out on the reasonable arrangement of the testing and verification of design scheme and working procedure obtaining mining engineering design master data, and the rock layer mechanics simulated experiment is the most basic, most important research method.It is strong that the Rock Mechanics Test And simulation has intuitive, result of study is fast, can carry out single factor analysis research, inquire into a certain factor to impact and the sensitivity thereof of the stability of country rock under the mining conditions, according to the result of model experiment, can infer Mechanics Phenomenon and deformation state and surrounding rock stability and safe coefficient that prototype may occur.
In physical simulation experiment in the past, mainly be that the simulation rock stratum is being subjected in the situation of mining influence, change of stress field causes the rock stratum to form zone of fracture, the state of fissure zone and bending subsidence band.By simulated experiment, analyze Pressure Variation and the Regional Distributing Regularity in various zones.
But in Practical Project, the rock stratum is except the impact that is subjected to stress field, and the existence in aquifer also can exert an influence to the rock stratum in the rock stratum, the coupled problem in stress field and flow field occurred.Simulation for the coupled problem in stress field and flow field is scarcely out of swaddling-clothes, and how simulating aquifer and the water flow event after the field, crack forms is key issue to be solved.In the prior art, only can adopt water pipe spray or simulate the aquifer with water bag, such mode is difficult to simulate in the aquifer hydro-occurrence state and water and the formed structure of rock mass in the overall variation that is subjected under the mining influence.
Therefore, be necessary to design a kind of novel analogue means, can't provide defective than accurate information as water-retaining production to solve prior art.
The utility model content
For the defective of prior art, the purpose of this utility model provides a kind of analogue means that can simulate aquifer and the flow event of water after the field, crack forms.
The simulation system of the water-retaining production that the utility model provides comprises: model support, aquifer analogue means and monitoring device, the aquifer analogue means is installed on the model support, wherein: the aquifer analogue means comprises water inlet pipe, tank bracket, water tank, aquifer water pipe, aquifer water water inlet tube valve, aquifer water flowmeter for pipe, aquifer water pipe flowing water Valve, rock stratum simulation layer, aquifer casing and aquifer water level meter.Water inlet pipe is arranged on the water tank top, is used to cistern water supply; Water tank is installed on the tank bracket; The water intake end of aquifer water pipe is connected with water tank, and a part of pipeline of aquifer water pipe extends in the simulation layer of rock stratum, is provided with the downward weep hole of a plurality of water outlet directions at described pipeline; The rock stratum simulation layer is laid in the casing of aquifer; The aquifer casing is fixed on the model support; Aquifer water level meter is arranged in the casing of aquifer, for detection of the water level in the casing of aquifer; Aquifer water water inlet tube valve is arranged between aquifer water pipe water intake end and the water tank; The aquifer water flowmeter for pipe is connected on the pipeline of aquifer water pipe, for detection of the flow in the water pipe of aquifer; Aquifer water pipe flowing water Valve is arranged on the water side of aquifer water pipe; Be connected by signal link between monitoring device and the aquifer analogue means.
Preferably, the rock stratum simulation layer is made of sand grains or rubble.
Preferably, the aquifer water pipe arranges a weep hole at the pipeline downside that enters into the rock stratum simulation layer every predetermined space.
Preferably, model support comprises the first side uprights, the second side uprights, front apron, backboard and box style substructure, wherein: the first side uprights, the second side uprights all are vertically mounted on the box style substructure, are parallel to each other between described the first side uprights, the second side uprights; Front apron, backboard are installed between the first side uprights, the second side uprights, and front apron is installed in front end; Backboard is installed in the rear end.
Preferably, model support also comprises crossbeam, and described crossbeam is connected between the first side uprights, the second side uprights.
Preferably, the aquifer casing comprises: baffle plate, side plate, water-stop sheet, chute assembly, interlayer, and wherein: described baffle plate and side plate consist of the border all around of aquifer casing; The chute assembly is arranged between the baffle plate, is the plug component of water-stop sheet; Interlayer is arranged on the bottom of aquifer casing, with the plane of water-stop sheet fit in abutting connection with arranging.
Preferably, described system also comprises monitoring device, and described monitoring device comprises image capture module and signal acquisition module, and wherein: image capture module is arranged on the front of aquifer analogue means, so that the aquifer analogue means is taken; Signal acquisition module is connected with the aquifer analogue means, to obtain corresponding water level, flow signal;
Preferably, also be provided with the cistern water level meter in the water tank.
Preferably, on aquifer water pipe 6 extends in pipeline in the simulation layer of rock stratum, every the 100mm weep hole that a diameter is set is 3-5mm.
Preferably, be provided with seal groove on the chute, sealing ring is installed in seal groove, utilize described sealing ring, water proof sealing between chute assembly and the water-stop sheet.
With respect to prior art, the utility model can the front aquifer of simulation mining in the state of water and rock stratum coexistence, after exploitation rear lower rock stratum forms the field, crack, the flow process of water, the water formed overall structure of flow event and aquifer in the field, crack is subjected to the variation of mining influence in the aquifer, thereby can provide more accurately information for water-retaining production.
Description of drawings
Fig. 1 is the structural representation of simulation system of the water-retaining production of a kind of specific embodiment of the utility model;
Fig. 2 is the top view of system shown in Figure 1;
Fig. 3 is the structural representation of model support in the simulation system of water-retaining production of a kind of specific embodiment of the utility model;
Fig. 4 is the structural representation of the chute assembly of aquifer casing in a kind of specific embodiment of the utility model;
Fig. 5 is that the A-A of chute assembly shown in Figure 4 is to sectional view;
Fig. 6 is that the B-B of chute assembly shown in Figure 4 is to sectional view;
Fig. 7 is the structural representation that seals between chute and the water-stop sheet in a kind of specific embodiment of the utility model
Fig. 8 is the structural representation that seals between interlayer support and the water-stop sheet in a kind of specific embodiment of the utility model;
Fig. 9 is the structural representation that seals between interlayer and the water-stop sheet in a kind of specific embodiment of the utility model;
Figure 10 is the structural representation of monitoring device in a kind of specific embodiment of the utility model.
The specific embodiment
As shown in Figure 1, 2, the simulation system of the water-retaining production in a kind of specific embodiment of the utility model comprises: model support 100, aquifer analogue means and monitoring device.
Wherein, as shown in Figure 3, model support 100 comprises the first side uprights 101, the second side uprights 103, front apron 104, backboard (not shown) and box style substructure 105.The first side uprights, the second side uprights all are vertically mounted on the box style substructure, are parallel to each other between described the first side uprights, the second side uprights; Front apron, backboard can be identical plates, and front apron, backboard are installed between the first side uprights, the second side uprights, and front apron is installed in front end; Backboard is installed in the rear end.Described 'fornt', 'back' is positioned at vertical with the first side uprights, the second side uprights, and on the direction vertical with front apron, backboard, wherein, the end that water flows into the aquifer analogue means is " front ", and the end that water flows out the aquifer analogue means is " afterwards ".
Wherein: the first side uprights 101, the second side uprights 103 all can be realized by channel-section steel, preferably adopt the 32b channel-section steel.The first side uprights 101, the second side uprights 103 are welded on the box style substructure 105.Polylith front apron 104, backboard are connected between the first side uprights 101, the second side uprights 103, and front apron, backboard can be formed by No. 5 channel-section steels of polylith or No. 10 channel-section steels.Be fixed on the side uprights 101,103 by the two ends of bolt with front apron, backboard, thereby consist of a model casing.In model support 100, simulation material layers such as aquifer analogue means, overlying strata simulation layer, coal seam simulation layer can be set layer by layer.
Box style substructure 105 is bases of model support 100, is used for supporting the first side uprights 101, the second side uprights 103, front apron, backboard.Box style substructure 105 can be connected to form by welding or other techniques by steel plate, and the concrete size of box style substructure 105 can be determined according to concrete application.
Preferably, model support 100 comprises crossbeam 102, crossbeam 102 can be bolted on the first side uprights 101, the second side uprights 103, for example: respectively in the first side uprights 101,500mm zone, the second side uprights 103 top, offer the pilot hole of crossbeam every 50mm, in order to crossbeam 102 is installed, also be convenient to regulate the position of crossbeam 102 in the vertical directions.Crossbeam 102 is for increasing the structural strength of model support 100, and when measuring the parameters such as displacement of overlying strata simulation layer, crossbeam 102 can also be used for the fixedly device such as dial gauge or jack.
The aquifer analogue means is installed on the model support 100, is connected by signal link between monitoring device and the aquifer analogue means 200.Described signal link comprises wired signal link or wireless signal link, and the wire signal link can be realized by holding wire and corresponding adapter thereof, be used for the parameters such as delivery flow rate signal or water level signal; The wireless signal link can be realized by devices such as emission of radio frequency signals device, radio frequency signal receiver, be used for by parameters such as wireless way for transmitting flow signal or water level signal.
The aquifer analogue means comprises water inlet pipe 1, tank bracket 2, water tank 3, aquifer water pipe 6, aquifer water water inlet tube valve 7, aquifer water flowmeter for pipe 8, aquifer water pipe flowing water Valve 9, rock stratum simulation layer 10, aquifer casing 11 and aquifer water level meter 12.
The water intake end of aquifer water pipe 6 is connected with water tank 3, and a part of pipeline of aquifer water pipe 6 extends in rock stratum simulation layer 10, is provided with the downward weep hole of a plurality of water outlet directions at described pipeline.Preferably, be provided with tube connector 4 in the bottom of water tank 3, can be connected with the water intake end of aquifer water pipe 6 by tube connector 4, tube connector 4 can adopt plastic flexible pipe, aquifer water pipe 6 can adopt metal tube, pipeline downside at the rock stratum simulation layer 10 that enters into aquifer casing 11 arranges a weep hole every predetermined space, thereby at aquifer water pipe 6 a plurality of weep holes is set, so that the water in the aquifer water pipe 6 infiltrates in the rock stratum simulation layer 10.In a preferred embodiment, aquifer water pipe 6 extends on the pipeline in the rock stratum simulation layer 10 weep hole that a diameter is set is 3-5mm every 100mm.
Rock stratum simulation layer 10 is laid in the aquifer casing 11, also is equipped with the coal seam simulation layer in aquifer casing 11, so that the state in coal seam in the simulation process of coal mining.Rock stratum simulation layer 10 can adopt clean medium coarse sand, gravelly sand or diameter to consist of less than the crushed stone of 10mm and the mixture of river sand, and wherein, medium coarse sand refers to the sand grains of granularity between 2.8mm-3.2mm; Gravelly sand refers to that sand boulderet grain (particle diameter greater than 2 millimeters sand grains) content accounts for the sand of gross mass 25%～50%.Rock stratum simulation layer 10 is placed in the aquifer casing assembly 11, and the height of aquifer casing middle water level can be observed by aquifer water level meter 12.Aquifer water level meter 12 can adopt the water-level gauge of the adequate types such as float type level meter, pressure type water-level gauge.
Shown in Fig. 4,5,6, aquifer casing 11 comprises: baffle plate; Side plate; Water-stop sheet 11-3; Chute assembly 11-4; Interlayer 11-7,11-8.Wherein: baffle plate 11-1,11-6 and side plate 11-2,11-5 can be that the poly (methyl methacrylate) plate of 15mm is made by thickness all; Water-stop sheet 11-3 can be made by poly (methyl methacrylate) plate, is that the poly (methyl methacrylate) plate of 5mm is made by thickness for example.Described baffle plate and side plate consist of the border all around of aquifer casing 11, are provided with interlayer 11-7,11-8 in the bottom of aquifer casing 11.Baffle plate can comprise the first baffle plate 11-1, second baffle 11-6; Side plate can comprise the first side plate 11-2, the second side plate 11-5.
Edge at baffle plate 11-1,11-6 is provided with bolt hole, by nut baffle plate 11-1,11-6 is fixed on the model support 100.Bottom at side plate 11-5 is provided with weep hole, and described weep hole is used for the water of aquifer casing is discharged.Preferably, be provided with aquifer water level meter 12 at the weep hole place, for detection of the water level in the casing of aquifer.
Chute assembly 11-4 is as the plug component of water-stop sheet 11-3, so that water-stop sheet 11-3 can insert among the chute assembly 11-4.Chute assembly 11-4 is arranged between the baffle plate, for example between the first baffle plate 11-1, the second baffle 11-6.The structure of chute assembly 11-4 is shown in Fig. 7,8,9.Chute assembly 11-4 comprises: chute 11-4-1, sealing ring 11-4-2.A part of edge of water-stop sheet 11-3 is installed on the chute assembly 11-4, on chute 11-4-1 seal groove can be set, and sealing ring 11-4-2 is installed in seal groove, thereby realizes the water proof sealing between chute assembly 11-4 and the water-stop sheet 11-3.
Another part edge of water-stop sheet 11-3 is installed on the interlayer support 11-7-2, and on interlayer support 11-7-2, seal groove can be set, weather strip 11-7-1 is installed in seal groove, thereby realizes the water proof sealing between interlayer support 11-7-2 and the water-stop sheet 11-3.
The plane of interlayer 11-7,11-8 and water-stop sheet 11-3 fit in abutting connection with arranging, the structure of interlayer 11-8 is as shown in Figure 9.11-8-1 arranges seal groove at the interlayer support, and weather strip 11-8-2 is installed in seal groove, thereby realizes the water proof sealing between interlayer 11-8 and the water-stop sheet 11-3.
Aquifer water water inlet tube valve 7 is arranged between the water intake end and water tank 3 of aquifer water pipe 6, is used for the water inlet of control aquifer water pipe 6.Aquifer water pipe flowing water Valve 9 is arranged on the water side of aquifer water pipe 6, is used for the water outlet of control aquifer water pipe 6.Aquifer water water inlet tube valve 7, aquifer water pipe flowing water Valve 9 can adopt various suitable valve types, and preferably, aquifer water water inlet tube valve 7, aquifer water pipe flowing water Valve 9 are electronic valve.
Aquifer water flowmeter for pipe 8 is connected on the pipeline of aquifer water pipe, for detection of the flow in the aquifer water pipe 6.Aquifer water flowmeter for pipe 8 can adopt various suitable flow meters, for example any in differential pressure flowmeter, the volumetric flowmeter.Whether aquifer water flowmeter for pipe 8 flows into aquifer water pipe 6 by the water in the aquifer water water inlet tube valve 7 control water tanks 3, and aquifer water inlet pipe flow meter 8 is used for gathering the size that flows into aquifer water pipe 6 discharges.
As shown in figure 10, monitoring device is used for monitoring field, crack Formation and Evolution process.As shown in figure 10, monitoring device comprises signal acquisition module 310 and image capture module 320, and wherein, image capture module 320 is used for taking the crack state of rock stratum simulation layer; Signal acquisition module 310 is used for gathering water level signal, the flow signal of aquifer analogue means.
Image capture module 320 can be by video acquisition device and corresponding wire signal link or the realizations of wireless signal link such as video cameras, image capture module is arranged on the front of aquifer analogue means, so that the aquifer analogue means is taken in real time, so that the external crack of the different constantly aquifer analogue means of real time record produces and growth course, thus the flow event of water in distribution that can be by field, graphical analysis crack and the aquifer.
Signal acquisition module 310 can be realized by digital processing element (for example CPU), flow meter, water-level gauge, A/D converter, D/A converter and wire signal link or wireless signal link.Each water-level gauge, the flow meter of signal acquisition module from be arranged on the aquifer analogue means obtains corresponding water level, flow signal.
In actual applications, monitoring device can be monitored the data of moisture rock stratum simulation layer He other simulation layers simultaneously, in the embodiment shown in fig. 10: the data that gather the data of pressure cell 312 storages be embedded in the rock stratum and be fixed on the displacement meter 313 of monitoring topmost strata displacement on the crossbeam of model support 100.In the embodiment shown in fig. 10,315 is moisture rock stratum simulation layer, and 316 is other simulation layer.Utilize image capture module 320 from just taking in real time in the face of each simulation layer on the model support 100, and the different constantly simulation layer external cracks of real time record produce and growth course, the flow event of water in the displacement by each rock stratum of graphical analysis and the distribution of field, crack and the aquifer.
Above embodiment is only in order to illustrate the utility model and the described technical scheme of unrestricted the utility model; Therefore, although this manual has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from technical scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (10)
1. the simulation system of a water-retaining production is characterized in that, described system comprises: model support, aquifer analogue means and monitoring device, and the aquifer analogue means is installed on the model support, wherein:
The aquifer analogue means comprises water inlet pipe, tank bracket, water tank, aquifer water pipe, aquifer water water inlet tube valve, aquifer water flowmeter for pipe, aquifer water pipe flowing water Valve, rock stratum simulation layer, aquifer casing and aquifer water level meter, wherein:
Water inlet pipe is arranged on the water tank top, is used to cistern water supply;
Water tank is installed on the tank bracket;
The water intake end of aquifer water pipe is connected with water tank, and a part of pipeline of aquifer water pipe extends in the simulation layer of rock stratum, is provided with the downward weep hole of a plurality of water outlet directions at described pipeline;
The rock stratum simulation layer is laid in the casing of aquifer;
The aquifer casing is fixed on the model support;
Aquifer water level meter is arranged in the casing of aquifer, for detection of the water level in the casing of aquifer;
Aquifer water water inlet tube valve is arranged between aquifer water pipe water intake end and the water tank;
The aquifer water flowmeter for pipe is connected on the pipeline of aquifer water pipe, for detection of the flow in the water pipe of aquifer;
Aquifer water pipe flowing water Valve is arranged on the water side of aquifer water pipe;
Be connected by signal link between monitoring device and the aquifer analogue means.
2. system according to claim 1 is characterized in that, the rock stratum simulation layer is made of sand grains or rubble.
3. system according to claim 2 is characterized in that, the aquifer water pipe arranges a weep hole at the pipeline downside that enters into the rock stratum simulation layer every predetermined space.
4. system according to claim 1 is characterized in that, model support comprises the first side uprights, the second side uprights, front apron, backboard and box style substructure, wherein:
The first side uprights, the second side uprights all are vertically mounted on the box style substructure, are parallel to each other between described the first side uprights, the second side uprights;
Front apron, backboard are installed between the first side uprights, the second side uprights, and front apron is installed in front end; Backboard is installed in the rear end.
5. system according to claim 1 is characterized in that, model support also comprises crossbeam, and described crossbeam is connected between the first side uprights, the second side uprights.
6. system according to claim 1 is characterized in that, the aquifer casing comprises: baffle plate, side plate, water-stop sheet, chute assembly, interlayer, wherein:
Described baffle plate and side plate consist of the border all around of aquifer casing;
The chute assembly is arranged between the baffle plate, is the plug component of water-stop sheet;
Interlayer is arranged on the bottom of aquifer casing, with the plane of water-stop sheet fit in abutting connection with arranging.
7. system according to claim 1 is characterized in that, described system also comprises monitoring device, and described monitoring device comprises image capture module and signal acquisition module, wherein:
Image capture module is arranged on the front of aquifer analogue means, so that the aquifer analogue means is taken;
Signal acquisition module is connected with the aquifer analogue means, to obtain corresponding water level, flow signal.
8. system according to claim 1 is characterized in that, also is provided with the cistern water level meter in the water tank.
9. system according to claim 1 is characterized in that, on the aquifer water pipe extends in pipeline in the simulation layer of rock stratum, every the 100mm weep hole that a diameter is set is 3-5mm.
10. system according to claim 6 is characterized in that, is provided with seal groove on the chute assembly, and sealing ring is installed in seal groove, utilizes described sealing ring, water proof sealing between chute assembly and the water-stop sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220194727 CN202914104U (en) | 2012-04-28 | 2012-04-28 | Water retention mining simulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220194727 CN202914104U (en) | 2012-04-28 | 2012-04-28 | Water retention mining simulation system |
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| Publication Number | Publication Date |
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| CN202914104U true CN202914104U (en) | 2013-05-01 |
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| CN 201220194727 Expired - Lifetime CN202914104U (en) | 2012-04-28 | 2012-04-28 | Water retention mining simulation system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865077A (en) * | 2012-04-28 | 2013-01-09 | 中国神华能源股份有限公司 | Simulation system of water-preserved mining |
| CN104389591A (en) * | 2014-09-09 | 2015-03-04 | 北京迈赛富特科技有限责任公司 | Water injection simulation system of solid-liquid coupled similar material |
| CN108320611A (en) * | 2018-05-14 | 2018-07-24 | 蒋嫚 | It is a kind of for imitating the permeable experimental teaching unit of roof fracture during coal mining |
| CN111502661A (en) * | 2020-04-22 | 2020-08-07 | 贵州理工学院 | Experimental device for be used for simulating inclined coal seam water retention exploitation effect |
| CN116256293A (en) * | 2022-12-13 | 2023-06-13 | 中国矿业大学 | Test device for simulating roadway surrounding rock osmotic deformation under cyclic drainage water condition |
-
2012
- 2012-04-28 CN CN 201220194727 patent/CN202914104U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865077A (en) * | 2012-04-28 | 2013-01-09 | 中国神华能源股份有限公司 | Simulation system of water-preserved mining |
| CN102865077B (en) * | 2012-04-28 | 2016-04-20 | 中国神华能源股份有限公司 | A kind of simulation system of water-retaining production |
| CN104389591A (en) * | 2014-09-09 | 2015-03-04 | 北京迈赛富特科技有限责任公司 | Water injection simulation system of solid-liquid coupled similar material |
| CN108320611A (en) * | 2018-05-14 | 2018-07-24 | 蒋嫚 | It is a kind of for imitating the permeable experimental teaching unit of roof fracture during coal mining |
| CN111502661A (en) * | 2020-04-22 | 2020-08-07 | 贵州理工学院 | Experimental device for be used for simulating inclined coal seam water retention exploitation effect |
| CN116256293A (en) * | 2022-12-13 | 2023-06-13 | 中国矿业大学 | Test device for simulating roadway surrounding rock osmotic deformation under cyclic drainage water condition |
| CN116256293B (en) * | 2022-12-13 | 2024-04-16 | 中国矿业大学 | Test device for simulating roadway surrounding rock osmotic deformation under cyclic drainage water condition |
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