CN204002929U - A kind of groundwater reservoir with emergent water draw-off - Google Patents
A kind of groundwater reservoir with emergent water draw-off Download PDFInfo
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- CN204002929U CN204002929U CN201420423382.4U CN201420423382U CN204002929U CN 204002929 U CN204002929 U CN 204002929U CN 201420423382 U CN201420423382 U CN 201420423382U CN 204002929 U CN204002929 U CN 204002929U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 212
- 239000003673 groundwater Substances 0.000 title claims abstract description 54
- 239000003245 coal Substances 0.000 claims abstract description 52
- 238000005065 mining Methods 0.000 claims abstract description 21
- 238000003860 storage Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 34
- 238000012544 monitoring process Methods 0.000 claims description 29
- 239000011435 rock Substances 0.000 claims description 25
- 229910052742 iron Inorganic materials 0.000 claims description 17
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000002245 particle Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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- 238000005728 strengthening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
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Abstract
The utility model discloses a kind of groundwater reservoir with emergent water draw-off, the work plane goaf for water storage that comprises dam body and form in coal mining, described dam body comprises coal column dam body and artificial dam body, described coal column dam body and described artificial dam body surround described work plane goaf the water space of sealing, on described artificial dam body, be provided with emergent water draw-off, be provided with filter screen at the dorsal part of described artificial dam body.The disclosed groundwater reservoir of the utility model, by the sluicing of meeting an urgent need of emergent water draw-off is set, to ensure the safe operation of groundwater reservoir under the emergency case such as ore deposit shakes, adopts, caving zone is caving suddenly.
Description
Technical field
The utility model relates to coal mining and hydraulic engineering technical field, relates in particular to a kind of groundwater reservoir with emergent water draw-off.
Background technology
West area is coal in China main producing region, and coal reserves and output all account for 2/3 left and right in the whole nation, but water resources shortage only accounts for 3.9% of national gross amount of water resources, ecological environment background fragility, and water resources shortage is one of bottleneck of this area's socio-economic development.
According to statistics, approximately 2 tons of one ton of coal average emission mine waters are often adopted in western part, and according in conventional process mode, the mine water that coal mining produces is outer row earth's surface after treatment, but because this area's evaporation capacity is large, the very fast outer row's loss and waste of outer ore discharge well water.At present, in Shen Dong mining area, accumulative total is built up 32 coal mine underground reservoirs, and moisture storage capacity 2,700 ten thousand m3, have supplied more than 95% water in mining area, build up 200,000,000 tonnes of mining areas water-resource guarantee is provided for mining area.
For further strengthening down-hole moisture storage capacity and ensureing groundwater reservoir security of operation, through continuing technical research, Shenhua Group builds up seat of honour colliery, world distributed earth lower storage reservoir first in great Liu tower ore deposit, utilize water body connecting pipe between storehouse that same coal seam and different coal groundwater reservoir are interconnected, realize groundwater reservoir water transfer under the allotment of water resource science and emergency case, effective guarantee downhole production safety, realized coal resources and water resource harmonic extraction.
Compared with general surface reservoir, coal mine underground reservoir is a "black box", its interior reservoir hydrospace is not visible, it is a sealing water space, and be subject to mining stratum motion, with factor effects such as coal seam and different coal mining influence, the motion of caving zone rock mass, ore deposit shakes, its operation is uncertain high, and water storage has formed downhole safety hidden danger in a large number, and dam body is the key that ensures groundwater reservoir safe operation, artificial dam body is the weak link that safety prevents.Once hydraulic pressure increases suddenly in generation storehouse, if can not discharge water in time pressure release, hydraulic pressure very likely exceedes the requirement of artificial dam body security intensity, causes dam break.Therefore, how can store up safely under the condition of water at groundwater reservoir, eliminate safety of dam body hidden danger, be an important technology difficult problem for coal mine underground reservoir safety operation.
Because the suffered uncertain factor of coal mine underground reservoir is more, surface reservoir contingency management system can not effectively be used, once there is emergency case, as inbreak rock mass is caving suddenly, causes hydraulic pressure to increase suddenly in storehouse, is difficult to the safe operation of effective guarantee groundwater reservoir.
Utility model content
Goal of the invention of the present utility model is to overcome defect of the prior art, provides the one can effective guarantee safety of dam body, guarantees a kind of groundwater reservoir with emergent water draw-off of coal mine underground reservoir safety stable operation.
Technical solutions of the utility model provide a kind of groundwater reservoir with emergent water draw-off, the work plane goaf for water storage that comprises dam body and form in coal mining, described dam body comprises coal column dam body and artificial dam body, described coal column dam body and described artificial dam body are arranged in described work plane goaf around, described work plane goaf is surrounded to the water space of sealing, on described artificial dam body, be provided with emergent water draw-off, described emergent water draw-off comprises spilled water hole, by-pass valve control and water pressure monitoring sensor, described spilled water hole is arranged on described artificial dam body, the water inlet of described spilled water hole is communicated with described water space, described by-pass valve control is arranged in the discharge opening of described spilled water hole, described water pressure monitoring sensor setting is in described spilled water hole, dorsal part at described artificial dam body is provided with filter screen, described filter screen is arranged between described water inlet and described water space.
Further, described filter screen comprises i iron and iron wire filter screen, and described iron wire filter screen is arranged on described i iron.
Further, on described artificial dam body, be provided with multiple described emergent water draw-offs.
Further, described water space comprises multiple work planes goaf in vertical direction, on the described artificial dam body in the unsettled described work plane in rock stratum goaf, be provided with described emergent water draw-off up, on the described artificial dam body in described work plane goaf that bears hydraulic pressure maximum, be provided with described emergent water draw-off.
Further, described emergent water draw-off is constructed formation with described artificial dam body one.
Further, be useful in the arranged outside of groundwater reservoir the back flush pipeline that described emergent water draw-off is carried out to back flush.
Adopt technique scheme, there is following beneficial effect:
The groundwater reservoir that the utility model provides, by emergent water draw-off being set on artificial dam body, can increase due to emergency situations hydraulic pressure in reservoir time, the realization pressure release that discharges water, thereby ensure that dam body can not cause dam break because hydraulic pressure in storehouse increases, produce potential safety hazard, ensured groundwater reservoir safe operation.
Brief description of the drawings
The schematic diagram of a kind of groundwater reservoir with emergent water draw-off that Fig. 1 provides for the utility model;
Fig. 2 be in Fig. 1 along A-A to sectional view;
Fig. 3 is the schematic diagram of emergent water draw-off;
Fig. 4 is the schematic diagram that is furnished with emergent water draw-off on water space on the artificial dam body in its different work plane goaf.
The Reference numeral table of comparisons:
100-groundwater reservoir; 1-water space; 11-workplace goaf;
2-coal column dam body; The artificial dam body of 3-; The 4-water draw-off of meeting an urgent need;
41-spilled water hole; 411-water inlet; 412-discharge opening;
42-water pressure monitoring sensor; 43-by-pass valve control; 5-filter screen.
Detailed description of the invention
Further illustrate detailed description of the invention of the present utility model below in conjunction with accompanying drawing.
As Figure 1-4, a kind of groundwater reservoir 100 that the utility model provides, the work plane goaf 11 for water storage that comprises dam body and form in coal mining, dam body comprises coal column dam body 2 and artificial dam body 3, coal column dam body 2 and artificial dam 3 bodies are arranged in work plane goaf 11 around, work plane goaf 11 is surrounded to the water space 1 of sealing, on artificial dam body 3, be provided with emergent water draw-off 4, this emergent water draw-off 4 comprises spilled water hole 41, by-pass valve control 43 and water pressure monitoring sensor 42.
Wherein spilled water hole 41 is arranged on artificial dam body 3, and the water inlet 411 of spilled water hole 41 is communicated with water space 1, and by-pass valve control 43 is arranged in the discharge opening 412 of spilled water hole 41, and water pressure monitoring sensor 42 is arranged in spilled water hole 41.
Dorsal part at artificial dam body 3 is provided with filter screen 5, and filter screen 5 is arranged between water inlet 411 and water space 1.
For protecting and utilize water resource; the rock mass space, goaf that coal mining is formed or work plane goaf 11 are as the space of water storage; be water space 1; the coal column staying forms coal column dam body 2; and construct artificial dam body 3 in desired location as required; by this coal column dam body 2 and artificial dam body 3, work plane goaf 11 is surrounded to the water space 1 of sealing; for water storage; form coal mine underground reservoir water storage and utilize technical system; make full use of goaf rock mass purification mechanism, realize mine water underground auto purification.
Artificial dam body 3 is the dam body forming by artificial construction, and it is with the difference of coal column dam body 2, and coal column dam body 2 be self-assembling formation in coal mining process, and it is coal column formation reserved or that stay, and manually dam body 3 forms by artificial construction.Both thickness height etc. can be identical also can be different.
Groundwater reservoir 100 in colliery is "black box"es, its interior reservoir hydrospace is not visible, it is a sealing water space, and be subject to the motion of mining stratum, with factor effects such as coal seam and different coal mining influence, the motion of caving zone rock mass, ore deposit shakes, its operation is uncertain high, and a large amount of water storage has formed downhole safety hidden danger.Coal mine underground reservoir 100 is in down-hole, and uncertain factor is more.The one, the water space 1 of groundwater reservoir 100 is inbreak rock mass spaces, and rock mass motion in top is uncertain has considerable influence to water level in storehouse, along with inbreak rock mass constantly sinks to moving, rock mass is compacted, and space reduces, once rock mass is caving suddenly, the moment hydraulic pressure causing is very large, impacts larger to dam body; The 2nd, coal mine underground reservoir 100 coal seam of living in or coal seam, below are also in exploitation, and the ore deposit shake that therefore Seam Mining or the motion of periphery coal mine gob produce has certain influence to groundwater reservoir stability.
Dam body, comprise that coal column dam body 2 and artificial dam body 3 are the keys that ensure groundwater reservoir safe operation, and artificial dam body 3 is weak links that safety prevents, once the interior hydraulic pressure of groundwater reservoir 100 increases suddenly, if can not discharge water in time pressure release, hydraulic pressure very likely exceedes artificial dam body 3 security intensity requirements, causes dam break.
Therefore, occur for fear of above-mentioned phenomenon, on artificial dam body 3, be provided with emergent water draw-off 4.This emergent water draw-off 4 comprises spilled water hole 41, by-pass valve control 43 and water pressure monitoring sensor 42.Wherein spilled water hole 41 is arranged on artificial dam body 3, and the water inlet 411 of spilled water hole 41 is communicated with water space 1, and by-pass valve control 43 is arranged in the discharge opening 412 of spilled water hole 41, and water pressure monitoring sensor 42 is arranged in spilled water hole 41.
Water pressure monitoring sensor 42 be for can monitor water outlet pressure, and hydraulic pressure is converted to the sensor of signal output.It can be common hydraulic pressure pressure sensor, and external libraries water pressure acts directly on sensor, and sensor is by resistance variations with by electronics wireline inspection electronic variable, and a standard signal corresponding to this pressure of conversion output.
By-pass valve control 43 be can opening and closing valve, it can be common manual valve, can be also autocontrol valve, and this by-pass valve control 43 can be electrically connected with water pressure monitoring sensor 42, receive water pressure monitoring sensor 42 and transmit the hydraulic signal of coming, carry out valve opening or shutoff operation.By-pass valve control 43 is pressure type control, data can real-time Transmission to ground control centre.After 100 hydraulic pressure in Underground Garage exceedes the safe pressure that dam body bears, can automatically open the sluicing of meeting an urgent need.Also can open by manual operation by-pass valve control 43 simultaneously.
Water pressure monitoring sensor 42 monitored data real-time Transmission are to ground control centre, bearing safe water pressure with the artificial dam body 3 of coal mine underground reservoir 100 is analyzed, once exceed load rated safety pressure, can send hydraulic signal to by-pass valve control 43, by-pass valve control 43 can be opened the sluicing of meeting an urgent need automatically, guarantees safety of dam body; Also can as required, control on ground, implement to sluice simultaneously.
Thus, the pressure F in water pressure monitoring sensor 42 monitors spilled water hole 41 is less than the critical threshold values F that by-pass valve control 43 is opened
0time, by-pass valve control 43 remains in closed condition, continues water storage; Pressure F in water pressure monitoring sensor 42 monitors spilled water hole 41 is greater than critical threshold values F
0, by-pass valve control 43 is opened the sluicing of meeting an urgent need.Water in groundwater reservoir 100 or in water space 1 is discharged, be depressurized to proper strength, avoided artificial dam body 3 dam breaks, ensured that groundwater reservoir 100 normally moves.
In this emergent water draw-off 4, water pressure monitoring sensor 42 can be automatic data collection equipment with by-pass valve control 43, is greater than critical threshold values F when monitoring pressure F in water pressure monitoring sensor 42
0time, its signal by Open valve is passed to by-pass valve control 43, and by-pass valve control 43 is opened automatically; Be less than critical threshold values F when monitoring pressure F in water pressure monitoring sensor 42
0time, its signal by valve-off is passed to by-pass valve control 43, and by-pass valve control 43 is closed.Can certainly adopt manual unlocking by-pass valve control 43.
Because the water space 1 of coal mine underground reservoir 100 is to be formed by the work plane goaf 11 forming in coal mining or multiple work planes goaf 11, it is in inbreak rock mass space, in order to prevent from being scattered, rock mass particle packing causes spilled water hole 41 to stop up, dorsal part at artificial dam body 3 is provided with filter screen 5, filter screen 5 is arranged between water inlet 411 and water space 1, can before the rock mass particle that is scattered enters spilled water hole 41, pass through filter screen 5 by its filtering.
Certainly, above-mentioned spilled water hole 41 can be for being opened in the hole on artificial dam body 3, and it also can be for being arranged in the pipeline on artificial dam body 3.
Emergent water draw-off 4 positions are selected:
In colliery, groundwater reservoir 100 is formed by several work plane goafs 11, as shown in Figure 4, water space 1 comprises the work plane goaf of work plane 22601-work plane 22607, formed by 7 work plane goafs 11 altogether, area is larger, after coal mining, work plane top caving zone rock mass still plays pendulum, due to ore deposit shake or the factor impact such as adopt, very easily entirety is caving, thereby the water body in water space 1 is caused to enormous impact, the diffusion of current direction surrounding, coal column dam body 2 and artificial dam body 3 are formed to greater impact, therefore installation site how to choose suitable emergent water draw-off 4 is particularly important.The installation site of emergent water draw-off 4 should consider following principle: one, apart from top, unstable inbreak rock mass is located relatively nearby; Two, apart from the old kiln distance of periphery (very easily there is ore deposit shake in old kiln) relatively nearby; Three, apart from same or different working seam close together (mining influence is larger); Four, consider that the rear water body of sluicing is easily delivered to harbor; Five, must consider groundwater reservoir moisture storage capacity size.Emergent water draw-off 4 can be set in many places as required.
Thus, the groundwater reservoir that the utility model provides, by emergent water draw-off being set on artificial dam body, can increase due to emergency situations hydraulic pressure in reservoir time, the realization pressure release that discharges water, thereby ensure that dam body can not cause dam break because hydraulic pressure in storehouse increases, produce potential safety hazard, ensured groundwater reservoir safe operation.
Preferably, filter screen 5 comprises i iron and iron wire filter screen, and iron wire filter screen is arranged on i iron.I iron plays fixation, prevents hydraulic pressure coal-rock-impacting particle, washes away iron wire filter screen.Multi-disc i iron and the iron wire filter screen filter screen 5 that is jointly formed by connecting, the aperture of filter screen 5 or iron wire filter screen arranges according to Rockmass Block size in storehouse.Whole filter screen 5 is arranged in the rear of artificial dam body 3, for filtering the rock mass particle that is scattered, prevents that spilled water hole 41 from stopping up.
Preferably, on artificial dam body 3, be provided with multiple emergent water draw-offs 4.By multiple emergent water draw-offs 4 are set, substantially the water in water space 1 to be emitted in can be at one time, rapid depressurization, prevents that dam break from occurring better.
Preferably, as shown in Figure 4, water space 1 comprises multiple work planes goaf 11 in vertical direction, on the artificial dam body 3 in the unsettled work plane in rock stratum goaf 11, be provided with up emergent water draw-off 4, on the artificial dam body 3 in work plane goaf 11 that bears hydraulic pressure maximum, be provided with emergent water draw-off 4.
For guaranteeing groundwater reservoir 100 safe operations in colliery, taking the groundwater reservoir 100 shown in Fig. 4 as example, its water space 1 forms (the work plane goaf of work plane 22601-work plane 22607) by 7 work plane goafs 11, the corresponding coal-face in each work plane goaf, the water space 1 at this place is formed by coal-face.
As shown in Figure 4.Its area is about 86.8m apart from earth's surface, apart from approximately 3.8 kilometers, well head, progressively declined to southwestward elevation by northeastward, and moisture storage capacity approximately 900,000 sides, 4.7 meters of average water head height, 7 meters of left and right of lowest part head height.Geological mapping analysis shows, unstable to the rock stratum above the work plane goaf 11 of work plane 22606 at work plane 22604, there is large area caving sign, emergent water draw-off 4 is set respectively for this reason on the artificial dam body 3 at the work plane goaf 11 of work plane 22603 and 11 places, work plane goaf of work plane 22604, or emergent water draw-off 4 is set between the work plane goaf 11 of work plane 22603 and the work plane goaf 11 of work plane 22604, cause in storehouse hydraulic pressure excessive to prevent from being caving suddenly, cause dam-break accident.
Test by physical modeling and numerical simulation simultaneously, the work plane goaf 11 that this groundwater reservoir lowest part is work plane 22601, its artificial dam body 3 is to bear hydraulic pressure maximum position in storehouse, for prevent the shake of seam mining, ore deposit and on cover caving zone and be caving suddenly the impact that dam body is caused, at an emergent water draw-off 4 of this position construction, guarantee lowest part safety of dam body.
Emergent water draw-off 4 relative set on each work plane goaf 11 are on the artificial dam body 3 at these 11 places, work plane goaf.
Emergent water draw-off 4 is set on the artificial dam body 3 by the unsettled work plane in rock stratum goaf 11 up, emergent water draw-off 4 is set on the artificial dam body 3 in work plane goaf 11 that bears hydraulic pressure maximum, further improve the ability that prevents dam break, ensured that groundwater reservoir normally moves.
Preferably, emergent water draw-off 4 is constructed formation with artificial dam body 3 one, that is to say emergent water draw-off 4 is set in installation site simultaneously in the time constructing artificial dam body 3.Also can, offer spilled water hole 41 in installation site in the time constructing artificial dam body 3, afterwards by-pass valve control 43 and water pressure monitoring sensor 42 be installed as required, thereby install without secondary perforate, improved operating efficiency simultaneously.
Preferably, be useful in the arranged outside of groundwater reservoir 100 the back flush pipeline (not shown) that emergent water draw-off 4 is carried out to back flush.The object of back flush is in order to prevent that coal petrography particle less in storehouse from stopping up spilled water hole 41, affects emergent sluicing in storehouse.
Concrete operations in artificial dam body 3 bottom sides or groundwater reservoir 100 appropriate locations build back flush pipelines, back flush pipeline is positioned at groundwater reservoir 100 outsides, and is oppositely arranged with spilled water hole 41.Regularly or by the observation spilled water hole 41 sluicing situations of meeting an urgent need, as occurred, spilled water hole 41 stops up, and from groundwater reservoir 100, back flush pipeline is carried out to high pressure water-filling, and water draw-off 4 peripheries of meeting an urgent need are rinsed, and fine particle is washed to spilled water hole 41 peripheries.Or directly aim at spilled water hole 41 and carry out back flush, so that the rock mass particle in spilled water hole 41 is rinsed to spilled water hole 41, prevent that spilled water hole 41 from stopping up.
To sum up, the groundwater reservoir that the utility model provides, by arranging emergent water draw-off on artificial dam body, can effectively avoid because of emergency situations, when the hydraulic pressure in reservoir increases, cause the generation of dam break phenomenon, avoid potential safety hazard, ensured groundwater reservoir safe operation.
Install and use the method for this emergent water draw-off 4 to comprise the steps: in conjunction with shown in Fig. 1-4,
Step 1: physical prospecting and probing are carried out in earth's surface above the groundwater reservoir 100 in colliery, drill prospecting in down-hole, groundwater reservoir 100 top rock mass are caving to situation analysis, find out caving zone and be easily caving area and go forward side by side rower calmly, with the installation site of clearly emergent water draw-off 4.
Step 2: according to prospecting result, choose correct position at groundwater reservoir 100 diverse locations, as the installation site of emergent water draw-off 4, wherein, emergent water draw-off 4 comprises spilled water hole 41, by-pass valve control 43 and water pressure monitoring sensor 43;
Step 3: be positioned at groundwater reservoir 100 emergent water draw-off 4 is installed on the artificial dam body 3 of installed position, be specially, on artificial dam body 3, offer spilled water hole 41, the water inlet 411 of spilled water hole 41 is communicated with water space 1, the discharge opening 412 of spilled water hole 41 is communicated with the outside of groundwater reservoir 100, by-pass valve control 43 is arranged in the discharge opening 412 of spilled water hole 41, water pressure monitoring sensor 42 is arranged in spilled water hole 41, and be provided with filter screen 5 at the dorsal part of artificial dam body 3, filter screen 5 is arranged between water inlet 411 and water space 1;
Step 4: according to above-mentioned prospecting result, construct groundwater reservoir stability three-dimensional simulation platform, inbreak rock mass in simulation top is caving suddenly, ore deposit shake, adopts the impact to described artificial dam body and coal column dam body of water body under various working respectively, obtain the hydraulic pressure value under various operating modes, get the critical threshold values F that minimum hydraulic pressure value is opened as by-pass valve control 43
0.
And according to the moisture storage capacity in water space 1, the aperture of design spilled water hole 41, simultaneously according to Rockmass Block size in storehouse, the size parameter of design filter screen 5.
The critical threshold values F that setup control valve 43 is opened
0, water pressure monitoring sensor 42 carries out daily monitoring variation in water pressure in spilled water hole 41,
The pressure F monitoring in spilled water hole 41 as water pressure monitoring sensor 42 is less than critical threshold values F
0time, by-pass valve control 43 remains in closed condition;
The pressure F monitoring in spilled water hole 41 as water pressure monitoring sensor 42 is greater than critical threshold values F
0time, by-pass valve control 43 is opened, the sluicing of meeting an urgent need.
And make regular check on emergent water draw-off 4, and regularly spilled water hole 41 is carried out to back flush, prevent rock mass Particle Blocking spilled water hole 41, affect safe operation.
As required, above-mentioned each technical scheme can be carried out to combination, to reach best-of-breed technology effect.
Above-described is only principle of the present utility model and preferred embodiment.It should be pointed out that for the person of ordinary skill of the art, on the basis of the utility model principle, can also make some other modification, also should be considered as protection domain of the present utility model.
Claims (6)
1. a groundwater reservoir with emergent water draw-off, is characterized in that, the work plane goaf for water storage that comprises dam body and form in coal mining,
Described dam body comprises coal column dam body and artificial dam body,
Described coal column dam body and described artificial dam body are arranged in described work plane goaf around, described work plane goaf are surrounded to the water space of sealing,
On described artificial dam body, be provided with emergent water draw-off,
Described emergent water draw-off comprises spilled water hole, by-pass valve control and water pressure monitoring sensor,
Described spilled water hole is arranged on described artificial dam body, and the water inlet of described spilled water hole is communicated with described water space, and described by-pass valve control is arranged in the discharge opening of described spilled water hole, described water pressure monitoring sensor setting in described spilled water hole,
Dorsal part at described artificial dam body is provided with filter screen, and described filter screen is arranged between described water inlet and described water space.
2. groundwater reservoir according to claim 1, is characterized in that, described filter screen comprises i iron and iron wire filter screen, and described iron wire filter screen is arranged on described i iron.
3. groundwater reservoir according to claim 1, is characterized in that, is provided with multiple described emergent water draw-offs on described artificial dam body.
4. groundwater reservoir according to claim 1, it is characterized in that, described water space comprises multiple described work planes goaf in vertical direction, is provided with described emergent water draw-off up on the described artificial dam body in the unsettled described work plane in rock stratum goaf
On the described artificial dam body in described work plane goaf that bears hydraulic pressure maximum, be provided with described emergent water draw-off.
5. groundwater reservoir according to claim 1, is characterized in that, described emergent water draw-off is constructed formation with described artificial dam body one.
6. groundwater reservoir according to claim 1, is characterized in that, is useful on the back flush pipeline that described emergent water draw-off is carried out to back flush in the arranged outside of groundwater reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420423382.4U CN204002929U (en) | 2014-07-29 | 2014-07-29 | A kind of groundwater reservoir with emergent water draw-off |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420423382.4U CN204002929U (en) | 2014-07-29 | 2014-07-29 | A kind of groundwater reservoir with emergent water draw-off |
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| CN204002929U true CN204002929U (en) | 2014-12-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153812A (en) * | 2014-07-29 | 2014-11-19 | 中国神华能源股份有限公司 | Underground reservoir with emergency water draining device and safe emergency treatment method for underground reservoir |
| CN109236373A (en) * | 2018-08-27 | 2019-01-18 | 清华大学 | A kind of pervasive coal mine underground reservoir and its method of construction |
-
2014
- 2014-07-29 CN CN201420423382.4U patent/CN204002929U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153812A (en) * | 2014-07-29 | 2014-11-19 | 中国神华能源股份有限公司 | Underground reservoir with emergency water draining device and safe emergency treatment method for underground reservoir |
| CN104153812B (en) * | 2014-07-29 | 2016-01-13 | 中国神华能源股份有限公司 | A kind of have the groundwater reservoir of emergent water draw-off and safe emergency processing method thereof |
| CN109236373A (en) * | 2018-08-27 | 2019-01-18 | 清华大学 | A kind of pervasive coal mine underground reservoir and its method of construction |
| CN109236373B (en) * | 2018-08-27 | 2024-04-16 | 清华大学 | Universal coal mine underground reservoir and construction method thereof |
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