CN102862775B - Distributed storage method of underground water of mine - Google Patents
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 150
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- 238000005065 mining Methods 0.000 claims abstract description 28
- 239000003245 coal Substances 0.000 claims abstract description 21
- 238000009826 distribution Methods 0.000 claims abstract description 21
- 239000003673 groundwater Substances 0.000 claims description 31
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- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
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- 235000009566 rice Nutrition 0.000 description 2
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Abstract
The invention discloses a distributed storage method of underground water of a mine. The method includes the following steps: A. prospecting underground space of a mining region to obtain stratal basic geological data; B. observing the underground water of the mine to obtain flow field distribution condition, water quality data and water pressure data of underground water; C. determining one or a plurality of goafs which cannot be penetrated by the underground water to be water storage spaces of a distributed underground reservoir according to the stratal basic geological data obtained in the stepA and the flow field distribution condition, the water quality data and the water pressure data of the underground water and obtained in the stepB; and D. enabling the underground water produced in the coal mining process on the adjacent working face to flow to the water storage spaces naturally in seepage mode when the certain water storage spaces are formed. By means of the method, reasonable storage of the underground water of the mine is achieved, and effects on growth and restoring of ecological environment can be reduced.
Description
Technical field
The present invention relates to the protection of groundwater resource and utilize field, particularly a kind of distributed storage method of mine groundwater.
Background technology
China is lack of water country, and shortage of water resources phenomenon has formed serious threat to the improvement of the national economic development and people's lives.In progress of coal mining, inevitably can produce mine groundwater, only the mine groundwater of the annual discharge of State owned coal mine is just up to 2,200,000,000 tons, and one ton of coal of average every exploitation just need to discharge 2 tons of waste water.Like this, not only wasted the water resource of a large amount of preciousnesses, once and mine groundwater arrange outward, ambient environment are very easily formed to serious environmental pollution.
In China's western region, compose and depositing abundant coal resources, but water resources shortage, the situation of mining area water and neighboring area short water supply further worsens, and has seriously restricted the normal production in mining area, is also unfavorable for the coordinated development of resource and environment.
At present, the processing of mine groundwater still be take and is pumped to ground as main.Due to the factors such as seasonality that water resource is utilized, cause the significant wastage of water resource, aggravated the unbalance of local water resource supply.Meanwhile, the processing method of mine groundwater suspended matter and water quality is mostly still and at mine water, by down-hole, is emitted on ground and processes, also easily cause secondary pollution.
For more existing trials in the protectorate of groundwater resource, such as peak-to-peak group Wutongzhuang Mine is for the protection to the control of deep water damage and earthing water, mine water is carried out down-hole collection, processes and recharged to aquifer in Ordovician limestone.In addition, " mine water treatment technique and mine water integrated processing equipment " (CN1884145), " utilize mine underground passage spatial manipulation mine water technology " (CN101012091), " coal mine water underground purification treatment device and method " (CN102336484A), " mine water overall treatment utilizing technology " (CN101975087A), " coal mine gob water purification method " is (CN1482078) etc. in patent documentation, proposed respectively by goaf filtering and purifying water, lane space utilizes purifier to process mine water, and the collection and use to mine water, with this, realize the processing of mine water and protection.
In said method, the collection of mine water is mainly, by down-hole water pump and pipeline, mine water is collected to sump, by drain hose, water is transported to ground.Wherein there are two kinds of modes, the one, in down-hole, collect post-processing, be then multiplexed in production; The 2nd, after water is collected, be transported to ground and process and utilize.No matter be down hole processing or floor treatment after collecting, these two kinds of methods are all that mine water is consumed from ground sheaf space, water resource are not rationally preserved, and cause water level constantly to decline, the growth of influence ecological environment and recovery simultaneously.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of distributed storage method of mine groundwater, to realize the reasonable preservation to mine groundwater, reduces the impact on the growth of ecology environment and recovery.
For achieving the above object, the invention provides a kind of distributed storage method of mine groundwater, comprise the steps:
A, the exploiting field underground space is reconnoitred, obtain the basic geological data on stratum;
B, mine groundwater is observed, obtained Flow Field Distribution situation, water quality data and the hydraulic pressure data of earthing water;
C, the stratum basic geological data obtaining according to steps A, with Flow Field Distribution situation, water quality data and the hydraulic pressure data of step B acquisition earthing water, the space, goaf that one or more earthing waters after mining cannot be penetrated is defined as the water space of distributed earth lower storage reservoir;
D, in coal mining process, after definite water space forms, the earthing water producing when its Adjacent Working Face is mined, natural seepage flow is to described water space.
Preferably, described steps A comprises the prospecting after prospecting before coal mining and goaf form, before obtaining respectively formation production and the basic geological data in goaf; In described step C, according to before the formation production obtaining and the basic geological data in goaf, and step B obtains Flow Field Distribution situation, water quality data and the hydraulic pressure data of earthing water, determines water space.
Preferably, described basic geological data at least comprises: stratal configuration, each formation lithology, lithomechanics intensity, rock permeability performance, the spatial dimension in goaf.
Preferably, the Flow Field Distribution situation that obtains earthing water described in step B is for determining the flow direction of earthing water.
Preferably, the method also comprises: carry out head while adopting, under safing prerequisite, in Mining Area, the driving surface of minimum absolute altitude carries out head and adopts.
Preferably, the method further comprises, the gallery outlet that each Yu great lane, goaf as water space of the Concrete Anti watertight of usining reinforcing intersects.
Preferably, the method also comprises: the gallery mouth in the goaf as water space adds goaf water level observation transparent hose and drain line; When goaf water level rises above the warning line, open water escape valve and carry out unrestrained.
As seen from the above technical solutions, the distributed storage method of this mine groundwater of the present invention, by mine groundwater is stored into and can prevent permeable goaf, and do not extract the mode on ground out, realize the reasonable preservation to mine groundwater, can reduce the impact on the growth of ecology environment and recovery.
Accompanying drawing explanation
Fig. 1 is the procedure chart of the distributed storage method of mine groundwater of the present invention;
Fig. 2 is the space schematic diagram of the distributed reservoir in a preferred embodiment of the present invention.
The specific embodiment
Referring to accompanying drawing, the present invention is described in detail for the specific embodiment that develops simultaneously.
The invention provides a kind of distributed storage method of mine groundwater, by mine groundwater is stored into and can prevent permeable goaf, and do not extract the mode on ground out, and realized the reasonable preservation to mine groundwater, can reduce the impact on the growth of ecology environment and recovery.
As shown in Figure 1, the distributed storage method of this mine groundwater of the present invention, comprises the steps:
Step 101, reconnoitres the exploiting field underground space, obtains the basic geological data on stratum.
In practical application, the prospecting of the exploiting field underground space is comprised to the prospecting after prospecting before coal mining and goaf form, before obtaining respectively formation production and the basic geological data in goaf.These basic geological datas comprise: stratal configuration, each formation lithology, lithomechanics intensity, rock permeability performance, the spatial dimension in goaf etc.
Step 102, observes mine groundwater, obtains Flow Field Distribution situation, water quality data and the hydraulic pressure data of earthing water.
The Flow Field Distribution situation of acquisition earthing water described here is for determining the flow direction of earthing water.
Step 103, the stratum basic geological data obtaining according to step 101, with Flow Field Distribution situation, water quality data and the hydraulic pressure data of step 102 acquisition earthing water, the space, goaf that one or more earthing waters after mining cannot be penetrated is defined as the water space of distributed earth lower storage reservoir.
In practical application, can be according to before the formation production obtaining and the basic geological data in goaf, and step 102 obtains Flow Field Distribution situation, water quality data and the hydraulic pressure data of earthing water, determines water space.
Step 104, in coal mining process, after being defined as water space and forming, the earthing water producing when its Adjacent Working Face is mined, natural seepage flow is to described water space.
In addition, the present invention is in the selection of initial water space, changing in the past selects the higher absolute altitude in coal seam to carry out the thinking that head adopts based on the anti-theory of harnessing the river, in Mining Area, the driving surface of minimum absolute altitude carries out head and adopts, and is beneficial to earthing water and by nature seepage flow, imports each water space of distributed reservoir.
Meanwhile, because each water space of distributed reservoir is limited, the existence of a large amount of ponding must cause the rising of hydraulic pressure, and in order to prevent the generation of water inrush accident, the present invention can also take some sealing and reinforcing engineering measures.
Take Shen Dong mining area below utilizes the applicable cases of distributed water library storage earthing water the invention will be further described as embodiment:
First, for choose may be suitable groundwater storage space, to the exploiting field underground space reconnoitre.In the present embodiment, from the Comprehensive Exploration result map of the exploiting field underground space, obtain data and the information such as stratum, lithology, structure distribution, from earthing water distribution dynamic concept, survey data bank and import waterlevel data and related data and information.Fully collect existing borehole data, hydrogeologic map and the relevant hydrogeologic data in exploiting field, by digitizer, scanner etc., by original data digitalisation, adopt data base tool management, safeguard and process spatial dimension etc. the basic geological data in the stratal configuration that finally obtained stratum, each formation lithology, lithomechanics intensity, rock permeability performance, goaf.
Concrete exploration method is same as the prior art, repeats no more here.
Then, mine groundwater is observed, obtained Flow Field Distribution situation, water quality data and the hydraulic pressure data of earthing water.In the present embodiment, in order to explore the distribution characteristics, flowing law etc. of earthing water, the water level of exploiting field earthing water, water quality, hydraulic pressure etc. are carried out regularly to dynamically observation.
Earthing water distribution dynamic concept is surveyed with the means that gather and is divided into artificial and automatic two kinds of modes, and in conjunction with actual hydrogeologic condition, 1 secondary data is recorded weekly in general setting, by digital device, imports in data bank.By data bank, realize the multi-source data of different times, different-format is collected, as original hydrology geologic basis.
The object of Groundwater Observation is to mainly contain three: the one, by waterlevel data, obtain the Flow Field Distribution situation of earthing water, i.e. and the flow direction of earthing water, can provide foundation for lower storage reservoir selectively based on this, because the selection of reservoir need to make earthing water flow into wherein; The 2nd, obtain water quality data, understand the pollution condition of earthing water in subsurface reservoir, for foundation is done in processing and utilization in the future; The 3rd, obtain hydraulic pressure data, for seal protection provides foundation, make the structural strength of subsurface reservoir can meet hydraulic pressure requirement, be unlikely to leak.
Then according to the stratum basic geological data that obtains above and Flow Field Distribution situation, water quality data and the hydraulic pressure data of earthing water, the space, goaf that one or more earthing waters after mining cannot be penetrated is defined as the water space of distributed earth lower storage reservoir then.
In distributed reservoir, the selection of water space is controlled by ambient condition and the earthing water distribution of the underground space, therefore according to the data that obtain, water space in distributed reservoir is divided into storage capacity good (I), storage capacity general (II), storage capacity poor (III) three classes above.
Good water-retaining property (I): rock mass mechanics intensity is high, hydraulic pressure resistance ability is strong, and water isolating is good, and storage capacity is good;
Water-retaining property general (II): rock mass mechanics intensity is medium, and hydraulic pressure resistance ability is medium, and water isolating is medium, and storage capacity is general;
Poor water retention property (III): rock mass mechanics intensity difference, hydraulic pressure resistance ability, water-resisting property is poor, and storage capacity is poor.
The rock stratum that generally boring specific capacity is less than to 0.001L/s.m in hydrogeology is considered as water insulation course.The hydraulic pressure resistance ability of water insulation course and the lithology of water insulation course are closely related.For coal measures Sedimentary Rock, water insulation course lithology mainly contains mud stone, aleurolite and sandstone.
According to the faulted structure development degree of effective protection aquiclude and project scale, effective protection aquiclude is divided into complete structure, block structure, cataclastic texture and loose structure four classes.Can think that complete structure is good water-retaining property, block structure is that water-retaining property is general, and cataclastic texture and loose structure are poor water retention property.
For the water space of above-mentioned storage capacity good (I), in actual production, can consider not increase in addition or reduce to add seal approach; Water space for storage capacity general (II) and storage capacity poor (III), increase seal approach according to actual conditions more.
In the selection of initial water space, changing in the past selects the higher absolute altitude in coal seam to carry out the thinking that head adopts based on the anti-theory of harnessing the river, in Mining Area, the driving surface of minimum absolute altitude carries out head and adopts, for example: there are a plurality of driving surfaces in certain exploiting field, absolute altitude is from 200 meters-210 meters, and the driving surface that is 200 meters from absolute altitude carries out head and adopts and be beneficial to earthing water and import distributed reservoir by nature seepage flow.The space layout of distributed reservoir as shown in Figure 2, has illustrated in four exploiting fields the locus of the three distributed reservoirs in exploiting field in Fig. 2.Wherein, an exploiting field is adjacent with two exploiting fields, and three exploiting fields are adjacent with four exploiting fields, between one/bis-exploiting field and three/tetra-exploiting fields, is provided with tunnel.In three exploiting fields, distributed reservoir shows 2 water spaces and a driving surface, is distributed with coal column and is separated by between each water space and work.At 2 water spaces, near the position in tunnel, be provided with water escape valve.
Then, based on determining of distributed reservoir, by adjusting operational parameter, be mainly the formation that driving surface size is controlled distributed reservoir, be beneficial to water storage.
In the present embodiment, by suitable increasing face length, to increase the water space of distributed reservoir, can reduce the preparatory construction amount of driving surface simultaneously, improve the rate of extraction.The advanced production control experience having formed in conjunction with Shen Dong mining area, and take into full account this exploiting field mining Technology Underground condition, the stable actual conditions of ocurrence of coal seam, determine that 52304 first mining face length are 300 meters.When implement in other mining areas, can adjust according to actual conditions, for example first mining face length can be arranged between 290-310 rice.
Meanwhile, can also, by suitably strengthening advance of the face length, further increase the water space of distributed reservoir.In view of mine 5-2 ocurrence of coal seam very stable, inclination angle is little, the resources supplIes with the coal wall of arranging that long distance advances, therefore design is in the situation that considering the factors such as construct in field with "nine squares", coal seam conditions, lengthen as much as possible advance of the face length, determine that 52304 first mining faces advance length 4450m.When implement in other mining areas, can adjust according to actual conditions, for example can advance length to be arranged between 4400-4500 rice first mining face.
Due to distributed reservoir limited space, the existence of a large amount of ponding must cause the rising of hydraulic pressure.In the present embodiment, in order to prevent the generation of water inrush accident, need to take some seal protection engineering measures, be beneficial to earthing water and flow directly into water space and filter and store, reduce earthing water and pour in mine.
Concrete measure has:
1, usining Concrete Anti watertight reinforces the gallery outlet that each Yu great lane, goaf as water space intersects.
2, can be in all goafs as water space, or only the gallery mouth in the lower goaf of physical features adds goaf water level observation transparent hose and drain line; When goaf water level rises above the warning line, can open water escape valve unnecessary water is unrestrained to water lodge by pipeline, the pipeline further connecting by water lodge, is drawn into unnecessary water on ground.
From the above embodiments; the distributed storage method of this mine groundwater of the present invention; realize the reasonable storage of mine groundwater; having reduced earthing water pours in mine and causes potential safety hazard; reduced mine drainage difficulty; reduce groundwater contamination, protected to greatest extent groundwater resource.
Claims (5)
1. a distributed storage method for mine groundwater, is characterized in that, comprises the steps:
A, the exploiting field underground space is reconnoitred, obtain the basic geological data on stratum; Wherein steps A comprises the prospecting after prospecting before coal mining and goaf form, before obtaining respectively formation production and the basic geological data in goaf;
B, mine groundwater is observed, obtained Flow Field Distribution situation, water quality data and the hydraulic pressure data of earthing water;
Before C, the formation production that obtains according to steps A and the basic geological data in goaf, with Flow Field Distribution situation, water quality data and the hydraulic pressure data of step B acquisition earthing water, the space, goaf that one or more earthing waters after mining cannot be penetrated is defined as the water space of distributed earth lower storage reservoir;
D, in coal mining process, after definite water space forms, the earthing water producing when its Adjacent Working Face is mined, nature seepage flow is to described water space, wherein carry out head while adopting, under safing prerequisite, in Mining Area, on the described driving surface of non-minimum absolute altitude, carry out head and adopt.
2. the method for claim 1, is characterized in that: described basic geological data at least comprises: stratal configuration, each formation lithology, lithomechanics intensity, rock permeability performance, the spatial dimension in goaf.
3. the method for claim 1, is characterized in that: described in step B, obtain the Flow Field Distribution situation of earthing water for determining the flow direction of earthing water.
4. the method as described in claim 1-3 any one, is characterized in that: the method further comprises, the gallery outlet that each Yu great lane, goaf as water space of the Concrete Anti watertight of usining reinforcing intersects.
5. method as claimed in claim 4, is characterized in that, the method also comprises: the gallery mouth in the goaf as water space adds goaf water level observation transparent hose and drain line; When goaf water level rises above the warning line, open water escape valve and carry out unrestrained.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210133605.9A CN102862775B (en) | 2012-04-28 | 2012-04-28 | Distributed storage method of underground water of mine |
| RU2014144499/03A RU2567564C1 (en) | 2012-04-28 | 2013-04-27 | Method of distributed storage and use of ground waters in mine |
| US14/397,506 US9371185B2 (en) | 2012-04-28 | 2013-04-27 | Method for distributed storage and use of underground water in mine |
| PCT/CN2013/074902 WO2013159749A1 (en) | 2012-04-28 | 2013-04-27 | Method for distributed storage and use of underground water in mine |
| AU2013252230A AU2013252230B2 (en) | 2012-04-28 | 2013-04-27 | Method for distributed storage and use of underground water in mine |
| ZA2014/08686A ZA201408686B (en) | 2012-04-28 | 2014-11-26 | Method for distributed storage and use of underground water in mine |
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| CN201210133605.9A CN102862775B (en) | 2012-04-28 | 2012-04-28 | Distributed storage method of underground water of mine |
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| WO2013159749A1 (en) * | 2012-04-28 | 2013-10-31 | 中国神华能源股份有限公司 | Method for distributed storage and use of underground water in mine |
| CN103243777A (en) * | 2013-05-17 | 2013-08-14 | 贵州能发高山矿业有限公司 | Karst region mine water-exploring water-taking method and device |
| CN108468567B (en) * | 2018-01-18 | 2019-09-24 | 中煤科工集团西安研究院有限公司 | Utilize method of the basement rock bending with building coal mine communication type groundwater reservoir |
| CN109026140B (en) * | 2018-08-02 | 2019-11-19 | 缪协兴 | A method of with band and the artificial water proof stratum of solid-filling coal-mining technique |
| CN109057861B (en) * | 2018-08-28 | 2023-07-04 | 清华大学 | Method for calculating underground reservoir, reservoir water storage body and reservoir capacity of open coal mine |
| CN113863985A (en) * | 2020-06-30 | 2021-12-31 | 神华神东煤炭集团有限责任公司 | Mass-coupled mine water collecting and supplying system and method |
| CN112901271B (en) * | 2021-03-17 | 2023-06-27 | 中国煤炭地质总局勘查研究总院 | Method for constructing underground water storage space by middle-life stratum |
| CN112796838B (en) * | 2021-03-30 | 2021-10-29 | 中国矿业大学(北京) | Mine flood alarm system based on full mine data fusion |
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| CN1221479C (en) * | 2002-09-09 | 2005-10-05 | 神华集团有限责任公司 | Water purification method for coal mine worked-out section |
| CN101915122B (en) * | 2010-08-02 | 2011-12-28 | 中钢集团马鞍山矿山研究院有限公司 | Construction method of underground large water-flow mine emergency water sump |
| CN101975087B (en) * | 2010-09-21 | 2011-06-15 | 山东新矿赵官能源有限责任公司 | Mine water overall treatment utilizing technology |
| CN102156302A (en) * | 2010-12-31 | 2011-08-17 | 大同煤矿集团有限责任公司 | Goaf ground detection method |
| CN102426384B (en) * | 2011-09-06 | 2014-06-04 | 赵永贵 | Method for detecting underground goaf and karst distribution |
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