CN107907180A - Closed coal mine underground reservoir analog simulation experimental rig and method - Google Patents
Closed coal mine underground reservoir analog simulation experimental rig and method Download PDFInfo
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- CN107907180A CN107907180A CN201711361374.6A CN201711361374A CN107907180A CN 107907180 A CN107907180 A CN 107907180A CN 201711361374 A CN201711361374 A CN 201711361374A CN 107907180 A CN107907180 A CN 107907180A
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- 239000003245 coal Substances 0.000 title claims abstract description 107
- 238000004088 simulation Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 158
- 239000000463 material Substances 0.000 claims abstract description 29
- 238000003860 storage Methods 0.000 claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 238000011068 loading method Methods 0.000 claims abstract description 13
- 238000005065 mining Methods 0.000 claims abstract description 11
- 238000012360 testing method Methods 0.000 claims description 36
- 239000011435 rock Substances 0.000 claims description 26
- 239000003673 groundwater Substances 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 238000005755 formation reaction Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 6
- 238000010998 test method Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000004154 testing of material Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
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- 239000002689 soil Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F17/00—Methods or apparatus for determining the capacity of containers or cavities, or the volume of solid bodies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
Abstract
The present invention proposes a kind of closed coal mine underground reservoir analog simulation experimental rig and method, adjusting grooves are opened up on the base of device, two left columns and two right columns are set on base, more block baffles are detachably connected between the left column and right column of base homonymy, crossbeam is set between the upper end of left column and the upper end of right column, loading pressure head is set on crossbeam, before submounts are set, behind and above slotted material case, the lifting groove of stuffing-box is placed with polylith elevator, lifting groove is threaded with multiple threaded posts, stuffing-box is nested with the water proof bag of upper opening, water bag and several hydraulic gages are placed with water proof bag, water bag is connected with water supplying unit through water inlet pipe, hydraulic gage is connected with monitoring unit through signal wire.Beneficial effects of the present invention：It can relatively accurately simulate and the process of closed coal mine underground reservoir is formed after the single working face mining in colliery simultaneously can relatively accurately calculate the storage capacity of reservoir.
Description
Technical field
The present invention relates to mineral engineering modelling technique field, more particularly to a kind of closed coal mine underground reservoir phase
Like simulation test device and method.
Background technology
Coal scale exploitation often turns on aquifer and aquifuge and forms conduit pipe, causes underground water leakage migration well
Lower formation mine water.To ensure downhole production safety, mine water is usually drained into ground, causes a large amount of evaporation losses of mine water,
Surface soil salinization of soil is caused at the same time, which shows particularly evident in west droughty area.Often it is only because coal is opened in China
Adopt and produce about 8,000,000,000 t of mine water, and utilization rate only 25% or so, the mine water resource lost in coal mining is every equivalent to China
Year industry and the 60% of domestic consumption.To protect mine of western preciousness water resource, Shenhua Group proposes coal mine underground reservoir
(underground water in water-bearing layer is dredged to goaf and stored up by the migration of top plate after coal mining with the theory using mine water for storage
Deposit), coal mine underground reservoir demonstration project has successfully been built, the modern exploitation of coal has been realized and the coordination of mine water resource protection is sent out
Exhibition.The goaf formed after seam mining is coal mine underground reservoir, and reservoir capacity and reservoir water pressure are determined to colliery water
The storage capacity in storehouse and the security evaluation and test of reservoir dam are of great significance.
Notification number is that the Chinese patent literature of CN102778215B discloses a kind of storage capacity side of determining in mine groundwater storehouse
Method, this method comprises the following steps：1. measure the rock mass strength in mine groundwater storehouse to be measured, coal seam buried depth, coal seam thickness
And exploitation size；2. setting benchmark mine groundwater storehouse, the rock mass strength of the reservoir, coal seam buried depth, coal seam thickness and open
It is consistent with mine groundwater storehouse to be measured to adopt size；3. measure moisture storage capacity V2, reservoir surface area S and the water in benchmark mine groundwater storehouse
Head H, calculates water storage and washes one's face and rinses one's mouth R=V2/SH；4. measuring the reservoir volume V1 in mine groundwater storehouse to be measured, reservoir capacity V to be measured is calculated
=V1 × R.The program is determined the storage capacity of coal mine underground reservoir with the method calculated by field measurement, though calculate more smart
Really, but workload is very big, extremely inefficient.
Notification number is that the Chinese patent literature of CN103866736B discloses a kind of ore deposit shake to the influence of coal mine underground reservoir
Physical simulation experiment system and method, the stent molding box first on bumper, be put into model casing model formation material with
Each rock stratum is simulated, makes model coal column, is put into air cushion simulation coal seam goaf domain；To shake table input-to-state stabilization, and record micro-
The data of U-tube manometer and displacement meter, by observing vibrations rear mold type profile acceleration change rule, model surface displacement settles
The change that the variation of stress of rule, the change in displacement rule of model roof and coal column carrys out Study of The Underground reservoir capacity is asked
Topic.The program is put into model formation material to simulate each rock stratum and make model coal column in the model casing of system, but goaf
Domain is simulated by being put into air cushion, and the water in actual coal mine underground reservoir is present in the gap of broken sillar, uses gas
Pad can not simulate, this is larger with actual groundwater reservoir difference, it is impossible to the storage capacity of accurate simulation measuring and calculating reservoir.
The content of the invention
It is an object of the invention to provide a kind of closed coal mine underground reservoir analog simulation experimental rig and method, solves
At present simulation test cannot relatively accurately simulate closed coal mine underground reservoir forming process and cannot be compared with accurate measure water
The problem of storage capacity in storehouse.
The present invention provides a kind of closed coal mine underground reservoir analog simulation experimental rig, closed coal mine underground reservoir phase
Include base, left column, right column, baffle, crossbeam, loading pressure head, stuffing-box and water proof bag like simulation test device；On base
The centre position in face offers adjusting grooves, and the left side of submounts sets two left columns, and the right side of submounts sets two
Root right column, closely more block baffles are detachably connected between the left column and right column of base homonymy side by side successively from top to bottom,
Crossbeam is set between the upper end of left column and the upper end of right column, multiple loading pressure heads are set on crossbeam, submounts set material
Hopper, before stuffing-box, behind and above be open, the centre position of the bottom surface of stuffing-box opens up lifting groove, lifts groove
Inside from left to right closely placed side by side successively to have polylith elevator, the upper surface of elevator is concordant with the bottom surface of stuffing-box, lifting
Groove opens up the threaded hole of multiple perforation stuffing-box bottom surfaces, and threaded hole internal thread is connected with threaded post, and the top of threaded post is located at
In adjusting grooves, stuffing-box is nested with the water proof bag of upper opening, and water bag and several hydraulic gages, water bag are placed with water proof bag
On open up several leakage holes, water bag is connected with water supplying unit through water inlet pipe, and hydraulic gage is connected with monitoring unit through signal wire.
Further, adjusting grooves include preceding adjusting grooves from base to the posterior direction of base that opened up before and from
The rear adjusting grooves opened up behind base to the front direction of base.
Further, the front end of elevator corresponds to two threaded holes side by side, and the rear end of elevator corresponds to side by side two
Threaded hole.
Further, it is the hydraulic pressure head being hydraulically operated to load pressure head.
Further, monitoring unit is computer.
Further, water bag is made of plastic material.
Further, water bag shape is flat.
Further, water proof bag is made of waterproof material.
Further, the side of the bottom surface of stuffing-box is provided with apopore.
The present invention also provides a kind of closed coal mine underground reservoir analog simulation test method, using above-mentioned closed coal
Ore deposit groundwater reservoir analog simulation experimental rig, comprises the following steps：
Step 1: according to the geological formations prototype of engineering site and closed coal mine underground reservoir analog simulation experimental rig
Size, select the rational likelihood ratio, obtain the size of similarity model test model, and determine coal in similarity model test model
The laying height and material mixture ratio of layer and each rock stratum；
Step 2: threaded post, spiral shell are rotated forward according to the laying in coal seam height and the likelihood ratio, the adjusted groove of testing crew
Elevator is jacked up height h by line column from initial positionm, while assemble some block baffles respectively before and after device, the height of baffle
Slightly larger than hm, elevator, stuffing-box bottom surface, stuffing-box left and right side and baffle surround groove, toward water proof bag in and in groove
Coal seam analog material is laid with simulating boundary coal column, is laid with coal seam analog material with along concordant, making simulating boundary coal column on groove
It is h to be laid with heightm；
Step 3: the bottom surface in water proof bag is laid with directly top analog material to simulate direct top, by several hydraulic gages
It is embedded in directly top, the signal wire of hydraulic gage draws connection monitoring unit, continues to be laid with each rock stratum analog material on direct top
To simulate each rock stratum, as rock stratum is laid with the increase of height, also constantly assemble baffle from bottom to top before and after device at the same time, determine
The height h of rear top plate water flowing fractured zone and warp damage intersection is adopted in coal seam in similarity model test modeld, it is being laid with rock stratum
Analog material highly reaches hdWhen, water bag is layed on rock stratum to simulate water-bearing layer, water bag draws connection water supply list through water pipe
Member, and continue to be laid with the design height formation similarity model test model that rock stratum analog material reaches similarity model test model,
Remaining stratum load is loaded to similarity model test model compensation by loading pressure head；
Step 4: according to the likelihood ratio, the adjusted groove of testing crew reversely rotates threaded post, from side each elevator by
Gradually land by definite time interval to simulate the exploitation to coal seam, different degrees of broken inbreak occurs in roof strata, and coal seam is opened
After adopting, by mining influence, the roof strata above production zone can form halfpace shape " three bands " structure, three with it is bottom-up according to
Secondary is caving zone, water flowing fractured zone and warp damage, and water space is also gradually reduced from bottom to top, wherein, water flowing fractured zone
" halfpace " space with caving zone composition is the water space of groundwater reservoir, and original is laid on direct hydraulic gage in pushing up with direct
The broken of top enters in caving zone sillar gap；
Step 5: first pass through monitoring unit carries out monitoring and timing t in real time to the data of hydraulic gage0, then pass through water supply
Unit injects mine water with flow q through water pipe to water bag, and leakage hole of the mine water through water bag enters water flowing fractured zone, mine water into
And along the crack of water flowing fractured zone, seepage flow enters caving zone gradually downward, and the water level in caving zone constantly raises, and forms storage
The closed coal mine underground reservoir of water；
Step 6: with the continuous rise of water level in coal mine underground reservoir, the data of hydraulic gage can constantly increase, but with
Water level is risen at the top of water flowing fractured zone, when piezometer data tends to balance and timing t1, then reservoir capacity V=q (t1-t0)；
Step 7: after coal mine underground reservoir hydraulic pressure tends towards stability, stop injection mine water, place a period of time, with simulation
Inbreak sillar drills through stuffing-box bottom surface side, water proof bag, border coal column after to the purification process of mine water and to form water outlet
Hole, coal mine underground reservoir are flowed out from apopore, and water quality detection is carried out to the mine water of outflow.
Compared with prior art, closed coal mine underground reservoir analog simulation experimental rig of the invention and method have with
Lower feature and advantage：
The closed coal mine underground reservoir analog simulation experimental rig and method of the present invention, can relatively accurately simulate colliery
The process of closed coal mine underground reservoir is formed after single working face mining, can relatively accurately calculate the storage capacity of reservoir, and
Purge cases of the closed coal mine underground reservoir to mine water can be evaluated, be closed coal mine underground reservoir storage capacity and
The Security Testing of reservoir dam provides more accurate test data.
After the embodiment of the present invention is read in conjunction with the figure, the features and advantages of the invention will become clearer.
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, bottom surface will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the attached drawing in the description of bottom surface is the present invention
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the front view of closed coal mine underground reservoir analog simulation experimental rig in the embodiment of the present invention；
Fig. 2 is the right view of closed coal mine underground reservoir analog simulation experimental rig in the embodiment of the present invention；
Fig. 3 is the A-A profiles in Fig. 1；
Fig. 4 is the structure during closed coal mine underground reservoir analog simulation experimental rig experiment in the embodiment of the present invention
Schematic diagram；
Fig. 5 is that closed coal mine underground reservoir analog simulation experimental rig tests the signal of reservoir water storage in the embodiment of the present invention
Figure；
Fig. 6 is that piezometer data is at any time in closed coal mine underground reservoir analog simulation test method in the embodiment of the present invention
Between change curve；
Wherein, 11, base, 111, preceding adjusting grooves, 112, rear adjusting grooves, 121, left column, 122, right column, 13,
Baffle, 131, left plate, 132, right plate, 14, crossbeam, 15, loading pressure head, 16, stuffing-box, 17, elevator, 18, threaded post,
19th, water proof bag, 21, water bag, 22, water inlet pipe, 23, hydraulic gage, 31, border coal, 32, directly push up, 33, " halfpace " space.
Embodiment
As shown in Figures 1 to 5, the present embodiment provides a kind of closed coal mine underground reservoir analog simulation experimental rig, bottom
Centre position above seat 11 offers adjusting grooves, and adjusting grooves are included before base 11 to the posterior direction of base 11
The preceding adjusting grooves 111 opened up and the rear adjusting grooves 112 opened up behind base 11 to the front direction of base 11.Preceding tune
Section groove 111, rear adjusting grooves 112 are to facilitate testing crew to stretch into spanner rotary threaded column 18.
Two left columns 121 are welded in left side above base 11, and two right columns 122 are welded on the right side above base 11.
Left plate 131 is connected between two left columns 121, right plate 132 is connected between two right columns 122.A left side for the front side of base 11
Close block baffles 13 more side by side, baffle 13 are detachably connected a left side through bolt successively from top to bottom between column 121 and right column 122
Column 121 and right column 122；It is close more side by side successively from top to bottom between the left column 121 and right column 122 of the rear side of base 11
Block baffle 13, baffle 13 are detachably connected left column 121 and right column 122 through bolt.The upper end of left column 121 and right column
Crossbeam 14 is set between 122 upper end, multiple loading pressure heads 15 are set on crossbeam 14, the loading pressure head 15 in the present embodiment is served as reasons
The hydraulic pressure head of hydraulic-driven.Multiple loading pressure heads 15 are evenly distributed on the tops of stuffing-box 16, multiple loadings in the present embodiment
Pressure head 15 is in two rows of five row close-packed arrays.
Stuffing-box 16 is set above base 11, before stuffing-box 16, behind and above be open, the bottom surface of stuffing-box 16
Centre position open up lifting groove.It is from left to right closely placed side by side successively in lifting groove to have polylith elevator 17, lifting
The upper surface of block 17 is concordant with the bottom surface of stuffing-box 16.The threaded hole of 16 bottom surface of multiple perforation stuffing-boxs is opened up in lifting groove,
Threaded hole internal thread is connected with threaded post 18, and the top of threaded post 18 is located in adjusting grooves.In the present embodiment, elevator 17
Front end corresponds to two threaded holes side by side, and the rear end of elevator 17 corresponds to two threaded holes side by side.In synchronous rotary threaded hole
Four threaded posts 18, threaded post 18, which rotates forward, can promote elevator 17 to rise, and threaded post 18 reversely rotates then elevator 17
Landing.Apopore is provided with the left of the bottom surface of stuffing-box 16.
The embedded water proof bag 19 for being cased with upper opening of stuffing-box 16, water proof bag 19 is made of waterproof material, in the present embodiment
Water proof bag 19 be made of soft transparent plastics, water bag 21 and several hydraulic gages 23 are placed with water proof bag 19.The present embodiment
In the shape of water bag 21 be made by flat and by plastic material, open up several leakage holes on water bag 21, water bag 21 through into
Water pipe 22 connects water supplying unit.Hydraulic gage 23 connects monitoring unit through signal wire, and the monitoring unit of the present embodiment is computer.
The present embodiment also provides a kind of closed coal mine underground reservoir analog simulation test method, using above-mentioned closed
Coal mine underground reservoir analog simulation experimental rig, comprises the following steps：
Step 1: according to the geological formations prototype of engineering site and closed coal mine underground reservoir analog simulation experimental rig
Size, select the rational likelihood ratio, obtain the size of similarity model test model, and determine coal in similarity model test model
The laying height and material mixture ratio of layer and each rock stratum.
Step 2: according to the laying in coal seam height and the likelihood ratio, the premenstrual adjusting grooves 111 of testing crew, rear adjusting grooves
112 rotate forward threaded post 18, and the bottom of elevator 17 is touched as initial position using 18 rigid connection of threaded post, and threaded post 18 is by elevator
17 jack up height h from initial positionm, spend hmJust it is the height in coal seam.Assemble one piece or two block baffles respectively before and after device at the same time
13, the slightly greater height than h of baffle 13m.Elevator 17,16 bottom surface of stuffing-box, 16 left and right side of stuffing-box and baffle 13 surround recessed
Groove, toward coal seam analog material is laid with water proof bag 19 and in groove with simulating boundary coal column 31, be laid with coal seam analog material with
Along concordant on groove, it is h simulating boundary coal column 31 is laid with heightm。
Step 3: as shown in figure 4, bottom surface in water proof bag 19 is laid with directly top analog material to simulate directly top 32,
Several hydraulic gages 23 are embedded in directly top 32, the signal wire of hydraulic gage 23 draws connection monitoring unit.Continuation is directly being pushed up
Each rock stratum analog material is laid with 32 to simulate each rock stratum, with rock stratum be laid with height increase, also at the same time before and after device by
It is lower constantly to assemble baffle 13 upwards, determine that rear top plate water flowing fractured zone and warp damage are adopted in coal seam in similarity model test model
The height h of intersectiond.Highly reach h being laid with rock stratum analog materialdWhen, the water bag 21 of flat is layed on rock stratum with mould
Intend water-bearing layer.Water bag 21 draws connection water supplying unit through water pipe 22, and the water inlet of water pipe 22 is higher by similarity model test model, and
Continue to be laid with the design height formation similarity model test model that rock stratum analog material reaches similarity model test model.Whole phase
Wrapped up like testing of materials model by water proof bag 19, remaining rock stratum is loaded to similarity model test model compensation by loading pressure head 15
Load.
Step 4: model dries a period of time after being laid with, simulation exploitation is carried out to the coal seam in model, will simulate and wait to adopt
The elevator 17 in coal seam number consecutively k1, k2, k3, k4, k5, k6, k7 from right to left.According to the likelihood ratio, testing crew is adjusted before menstruation
Groove 111, the reverse rotation threaded post 18 of rear adjusting grooves 112 are saved, according to the time likelihood ratio, each elevator 17 is gradual from right to left
Land by definite time interval to simulate the exploitation to coal seam, different degrees of broken inbreak, seam mining occurs in roof strata
Afterwards, by mining influence, the roof strata above production zone can form halfpace shape " three bands " structure, three with it is bottom-up successively
For caving zone, water flowing fractured zone and warp damage, water space is also gradually reduced from bottom to top, wherein, water flowing fractured zone and
" halfpace " space 33 of caving zone composition is the water space of groundwater reservoir, as shown in Figure 5.Original is laid in directly top 32
Hydraulic gage 23 enters in caving zone sillar gap with the broken of directly top 32.
Step 5: first pass through monitoring unit carries out monitoring and timing t in real time to the data of hydraulic gage 230, then pass through confession
Water unit injects mine water (by mine field sampling), leak of the mine water through water bag 21 with flow q through water pipe 22 to water bag 21
Hole enters water flowing fractured zone, mine water and then seepage flow enters caving zone, caving zone gradually downward along the crack of water flowing fractured zone
Interior water level constantly raises, and forms the closed coal mine underground reservoir of water storage.
Step 6: with the continuous rise of water level in coal mine underground reservoir, the data of hydraulic gage 23 can constantly increase, but with
Water level to rise at the top of water flowing fractured zone, when 23 data of hydraulic gage tend to balance and timing t1, as shown in Figure 6.Then Reservoir
Hold V=q (t1-t0)。
Step 7: after coal mine underground reservoir hydraulic pressure tends towards stability, stop injection mine water, place a period of time, with simulation
Inbreak sillar is to the purification process of mine water, and subsequent electricity consumption is drilled through 16 bottom surface of stuffing-box left side, water proof bag 19, border coal column 31 bore
Hole forms apopore, and coal mine underground reservoir is flowed out from apopore, and water quality detection is carried out to the mine water of outflow.
The closed coal mine underground reservoir analog simulation test method of the present embodiment, using closed coal mine underground reservoir phase
Like simulation test device, the mistake that closed coal mine underground reservoir is formed after the single working face mining in colliery can be relatively accurately simulated
Journey, can relatively accurately calculate the storage capacity of reservoir, and can evaluate purification feelings of the closed coal mine underground reservoir to mine water
Condition, more accurate test data is provided for the storage capacity of closed coal mine underground reservoir and the Security Testing of reservoir dam.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made in the essential scope of the present invention, should also belong to the present invention's
Protection domain.
Claims (10)
- A kind of 1. closed coal mine underground reservoir analog simulation experimental rig, it is characterised in that：Closed coal mine underground reservoir phase Include base, left column, right column, baffle, crossbeam, loading pressure head, stuffing-box and water proof bag like simulation test device；On base The centre position in face offers adjusting grooves, and the left side of submounts sets two left columns, and the right side of submounts sets two Root right column, closely more block baffles are detachably connected between the left column and right column of base homonymy side by side successively from top to bottom, Crossbeam is set between the upper end of left column and the upper end of right column, multiple loading pressure heads are set on crossbeam, submounts set material Hopper, before stuffing-box, behind and above be open, the centre position of the bottom surface of stuffing-box opens up lifting groove, lifts groove Inside from left to right closely placed side by side successively to have polylith elevator, the upper surface of elevator is concordant with the bottom surface of stuffing-box, lifting Groove opens up the threaded hole of multiple perforation stuffing-box bottom surfaces, and threaded hole internal thread is connected with threaded post, and the top of threaded post is located at In adjusting grooves, stuffing-box is nested with the water proof bag of upper opening, and water bag and several hydraulic gages, water bag are placed with water proof bag On open up several leakage holes, water bag is connected with water supplying unit through water inlet pipe, and hydraulic gage is connected with monitoring unit through signal wire.
- 2. closed coal mine underground reservoir analog simulation experimental rig according to claim 1, it is characterised in that：Adjust recessed Groove includes preceding adjusting grooves from base to the posterior direction of base that opened up before and behind base to before base The rear adjusting grooves that direction opens up.
- 3. closed coal mine underground reservoir analog simulation experimental rig according to claim 1, it is characterised in that：Elevator Front end correspond to two threaded holes side by side, the rear end of elevator corresponds to two threaded holes side by side.
- 4. closed coal mine underground reservoir analog simulation experimental rig according to claim 1, it is characterised in that：Loading pressure Head is the hydraulic pressure head being hydraulically operated.
- 5. closed coal mine underground reservoir analog simulation experimental rig according to claim 1, it is characterised in that：Monitoring is single Member is computer.
- 6. closed coal mine underground reservoir analog simulation experimental rig according to claim 1, it is characterised in that：Water bag by Plastic material is made.
- 7. closed coal mine underground reservoir analog simulation experimental rig according to claim 1, it is characterised in that：Outside water bag Shape is flat.
- 8. closed coal mine underground reservoir analog simulation experimental rig according to claim 1, it is characterised in that：Water proof bag It is made of waterproof material.
- 9. closed coal mine underground reservoir analog simulation experimental rig according to claim 1, it is characterised in that：Stuffing-box The side of bottom surface be provided with apopore.
- 10. a kind of closed coal mine underground reservoir analog simulation test method, is sealed using claim 1 to 9 any one of them Enclosed coal mine underground reservoir analog simulation experimental rig, it is characterised in that comprise the following steps：Step 1: according to the geological formations prototype of engineering site and the ruler of closed coal mine underground reservoir analog simulation experimental rig It is very little, select the rational likelihood ratio, obtain the size of similarity model test model, and determine in similarity model test model coal seam and The laying height and material mixture ratio of each rock stratum；Step 2: threaded post, threaded post are rotated forward according to the laying in coal seam height and the likelihood ratio, the adjusted groove of testing crew Elevator is jacked up into height h from initial positionm, while assemble some block baffles respectively before and after device, the height of baffle is slightly larger In hm, elevator, stuffing-box bottom surface, stuffing-box left and right side and baffle surround groove, toward water proof bag in and be laid with groove Coal seam analog material is laid with coal seam analog material with along concordant, making the laying of simulating boundary coal column on groove with simulating boundary coal column Highly it is hm；Step 3: the bottom surface in water proof bag is laid with directly top analog material to simulate direct top, several hydraulic gages are embedded in In directly pushing up, the signal wire of hydraulic gage draws connection monitoring unit, continues to be laid with each rock stratum analog material on direct top with mould Intend each rock stratum, as rock stratum is laid with the increase of height, also constantly assembles baffle from bottom to top before and after device at the same time, determine similar The height h of rear top plate water flowing fractured zone and warp damage intersection is adopted in coal seam in testing of materials modeld, being laid with, rock stratum is similar Material highly reaches hdWhen, water bag being layed on rock stratum to simulate water-bearing layer, water bag draws connection water supplying unit through water pipe, and Continue to be laid with the design height formation similarity model test model that rock stratum analog material reaches similarity model test model, by adding Carry pressure head and remaining stratum load is loaded to similarity model test model compensation；Step 4: according to the likelihood ratio, the adjusted groove of testing crew reversely rotates threaded post, from side each elevator gradually by Time interval landing is determined to simulate the exploitation to coal seam, there is different degrees of broken inbreak in roof strata, after seam mining, By mining influence, the roof strata above production zone can form halfpace shape " three bands " structure, and three are followed successively by with bottom-up Caving zone, water flowing fractured zone and warp damage, water space are also gradually reduced from bottom to top, wherein, water flowing fractured zone and emit Fall the water space that " halfpace " space with composition is groundwater reservoir, the hydraulic gage that original is laid in directly top is with directly pushing up It is broken to enter in caving zone sillar gap；Step 5: first pass through monitoring unit carries out monitoring and timing t in real time to the data of hydraulic gage0, then passed through by water supplying unit Water pipe injects mine water with flow q to water bag, and leakage hole of the mine water through water bag enters water flowing fractured zone, mine water so that along Seepage flow enters caving zone gradually downward in the crack of water flowing fractured zone, and the water level in caving zone constantly raises, and forms the envelope of water storage Enclosed coal mine underground reservoir；Step 6: with the continuous rise of water level in coal mine underground reservoir, the data of hydraulic gage can constantly increase, but with water level Rise at the top of water flowing fractured zone, when piezometer data tends to balance and timing t1, then reservoir capacity V=q (t1-t0)；Step 7: after coal mine underground reservoir hydraulic pressure tends towards stability, stop injection mine water, a period of time is placed, to simulate inbreak Sillar drills to form apopore to the purification process of mine water after through stuffing-box bottom surface side, water proof bag, border coal column, coal Ore deposit groundwater reservoir is flowed out from apopore, and water quality detection is carried out to the mine water of outflow.
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| CN201711361374.6A CN107907180B (en) | 2017-12-18 | Closed coal mine underground reservoir similarity simulation test device and method |
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| CN201711361374.6A CN107907180B (en) | 2017-12-18 | Closed coal mine underground reservoir similarity simulation test device and method |
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| CN110411840A (en) * | 2019-08-29 | 2019-11-05 | 安徽理工大学 | Simulate experimental rig and method that the earth's surface soil body in goaf generates tension crack |
| CN110987607A (en) * | 2019-12-27 | 2020-04-10 | 中国矿业大学(北京) | Nested multi-coupling model test system and test method for dam body of coal mine underground reservoir |
| CN111811856A (en) * | 2020-07-17 | 2020-10-23 | 中国矿业大学 | Coal pillar dam body accumulated damage evolution comprehensive experiment device and experiment method thereof |
| CN112098221A (en) * | 2020-05-11 | 2020-12-18 | 中国矿业大学(北京) | Analog simulation device and experimental method for stability of coal pillar of mine underground reservoir |
| CN113640494A (en) * | 2021-07-27 | 2021-11-12 | 清华大学 | Hydraulic power coupling disaster simulation device and method for underground reservoir of inclined stratum |
| CN114199491A (en) * | 2021-12-15 | 2022-03-18 | 国家能源投资集团有限责任公司 | Earthquake-resistant stability test evaluation device, test evaluation method, electronic device, and storage medium |
| WO2022171006A1 (en) * | 2021-02-09 | 2022-08-18 | 西安科技大学 | Angle-adjustable equivalent coal seam mining three-dimensional physical simulation apparatus, and method |
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| CN110411840A (en) * | 2019-08-29 | 2019-11-05 | 安徽理工大学 | Simulate experimental rig and method that the earth's surface soil body in goaf generates tension crack |
| CN110411840B (en) * | 2019-08-29 | 2023-12-26 | 安徽理工大学 | Test device and method for simulating tension fracture generated by goaf earth surface soil body |
| CN110987607A (en) * | 2019-12-27 | 2020-04-10 | 中国矿业大学(北京) | Nested multi-coupling model test system and test method for dam body of coal mine underground reservoir |
| CN110987607B (en) * | 2019-12-27 | 2020-10-27 | 中国矿业大学(北京) | Nested multi-coupling model test system and test method for dam body of coal mine underground reservoir |
| CN112098221A (en) * | 2020-05-11 | 2020-12-18 | 中国矿业大学(北京) | Analog simulation device and experimental method for stability of coal pillar of mine underground reservoir |
| CN112098221B (en) * | 2020-05-11 | 2022-05-17 | 中国矿业大学(北京) | Analog simulation device and experimental method for stability of coal pillar of mine underground reservoir |
| CN111811856A (en) * | 2020-07-17 | 2020-10-23 | 中国矿业大学 | Coal pillar dam body accumulated damage evolution comprehensive experiment device and experiment method thereof |
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| CN113640494A (en) * | 2021-07-27 | 2021-11-12 | 清华大学 | Hydraulic power coupling disaster simulation device and method for underground reservoir of inclined stratum |
| CN114199491A (en) * | 2021-12-15 | 2022-03-18 | 国家能源投资集团有限责任公司 | Earthquake-resistant stability test evaluation device, test evaluation method, electronic device, and storage medium |
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