CN102981188A - Position determination method of open coal mine underground reservoir - Google Patents
Position determination method of open coal mine underground reservoir Download PDFInfo
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- CN102981188A CN102981188A CN2012104733318A CN201210473331A CN102981188A CN 102981188 A CN102981188 A CN 102981188A CN 2012104733318 A CN2012104733318 A CN 2012104733318A CN 201210473331 A CN201210473331 A CN 201210473331A CN 102981188 A CN102981188 A CN 102981188A
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- coal mine
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- groundwater reservoir
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Abstract
The invention discloses a position determination method of an open coal mine underground reservoir, comprising the following steps: step one, exploring the geological structure of a bottom area in an open coal mine area, and simultaneously collecting a rock sample in an exploration area at the bottom of the open coal mine area; step two, judging the geological structure of the exploration area, selecting the rock sample of the exploration area in stable geological structure to carry out permeability coefficient determination; step three, selecting the exploration area in which the permeability coefficient is smaller than or equal to a preset value as a candidate area, and determining the distance between the candidate are and the next mining area; and step four, selecting the candidate area with the minimum distance to the next mining area in all candidate areas as the installation location of the open coal mine underground reservoir. Through the exploration of the geological structure and permeability coefficient of the bottom of the open coal mine underground reservoir, the location of the open coal mine underground reservoir which is good in water storage performance and convenient to collect ground water in exploitation ground layer is selected, the position determination of the open coal mine underground reservoir is comprehensively grasped, and the ground water resource of open coal mine is protected to the maximum.
Description
Technical field
The present invention relates to a kind of location determining method of groundwater reservoir, relate in particular to a kind of location determining method of open coal mine groundwater reservoir.
Background technology
Open coal mine is in recovery process, need to carry out draining and overburden operation, a large amount of water resources is pumped to ground usually in the Opencut coal mine mining process at present, so not only caused the waste of water resource, the water source that pollutes of the process of mining does not carry out purified treatment and directly is discharged into bottom surface, contaminated environment yet simultaneously.Therefore, be necessary that the construction of coal mine groundwater reservoir stores water resource in the open, building the open coal mine groundwater reservoir on the one hand can water conservation, can realize on the other hand not effluxing the water source that pollutes in the coal mining process.Therefore, to build the water storage performance good and be convenient to collect the open coal mine groundwater reservoir of the underground water of productive formation for the geographical conditions of rationally utilizing open coal mine, before carrying out the open coal mine reservoir construction, be necessary to carry out the screening of the installation location of open coal mine groundwater reservoir.
Summary of the invention
For the problem that prior art exists, the purpose of this invention is to provide a kind of location determining method of open coal mine groundwater reservoir, it is good and be convenient to collect the open coal mine groundwater reservoir position of the underground water of productive formation that the method can filter out the water storage performance.
Technical purpose of the present invention is achieved through the following technical solutions:
A kind of location determining method of open coal mine groundwater reservoir comprises the steps:
Step is 1.: the tectonic structure of exploration open coal mine exploiting field bottom section gathers the rock specimens of bottom, open coal mine exploiting field institute survey area simultaneously;
Step is 2.: judge the tectonic structure of institute's survey area, select the rock specimens of the survey area of geology construction of stable to carry out osmotic coefficient investigating;
Step is 3.: select survey area that infiltration coefficient is less than or equal to predetermined value as alternative district, measure the distance in described alternative district and next exploiting field;
Step is 4.: select in all alternative districts the installation location as the open coal mine groundwater reservoir with the minimum alternative district of the distance in next exploiting field.
Further, step 1. in, described exploration is geophysical survey and/or prospecting by boring.
Further, step 1. in, from being positioned at the dark station acquisition rock specimens of open coal mine exploiting field bottom 10m.
Further, step 2. in, the stable survey area of tectonic structure is horizontal tectonics and/or oblique structure.
Further, step 3. in, select described infiltration coefficient to be less than or equal to 1.0 * 10
-7The zone of cm/s is as alternative district.
Further, step 3. in, described predetermined value is 1.0 * 10
-6Cm/s.
Further, step 4. in, measure each next exploiting field of alternative offset and surface water apart from sum, the alternative district of chosen distance sum minimum is as day installation location of coal mine underground reservoir.
Further, step 4. in, measure next exploiting field of described alternative offset, surface water and current exploiting field the refuse dump apart from sum, the alternative district of chosen distance sum minimum is as the installation location of open coal mine groundwater reservoir.
The present invention is by surveying open coal mine exploiting field bottom tectonic structure and infiltration coefficient; it is good and be convenient to collect the open coal mine groundwater reservoir position of the underground water of productive formation to filter out the water storage performance; realization is comprehensively held open coal mine groundwater reservoir location positioning, farthest protects the open coal mine groundwater resource.
Description of drawings
Fig. 1 is the location determining method synoptic diagram of open coal mine groundwater reservoir of the present invention;
Fig. 2 is the groundwater reservoir location positioning synoptic diagram that utilizes the location determining method of open coal mine groundwater reservoir of the present invention.
Embodiment
Below in conjunction with accompanying drawing, a preferred embodiment of the present invention is described in detail.
As shown in Figure 1, the invention provides a kind of location determining method of open coal mine groundwater reservoir, comprise the steps:
Step is 1.: the tectonic structure of exploration open coal mine exploiting field bottom section gathers the rock specimens of bottom, open coal mine exploiting field institute survey area simultaneously.
As a preferred embodiment of the present invention, described exploration is geophysical survey and/or prospecting by boring, and the present invention is preferably from being positioned at the dark station acquisition rock specimens of open coal mine exploiting field bottom 10m.Certainly, the present invention can also be known further combined with the hydrogeological data coal rock layer survey data in described open coal mine exploiting field the tectonic structure in described exploiting field.
Step is 2.: the tectonic structure of judging institute's survey area, select the rock specimens of the survey area of geology construction of stable to carry out osmotic coefficient investigating, the present invention can measure the infiltration coefficient of described rock specimens by hydrostatic head method test method(s) or varying head test method(s).
As a preferred embodiment of the present invention, the stable survey area of described tectonic structure can comprise horizontal tectonics and/or oblique structure, but cannot comprise the unsettled survey area of tectonic structure such as fracture, tomography, staggered floor.Selecting the infiltration coefficient of the survey area mensuration rock specimens of geology construction of stable is because the barrier performance of some unsettled tectonic structure self is poor, the storage capacity of the groundwater reservoir that impact is built on this basis, for example build groundwater reservoir in the position that do not plan a successor, the water body in the reservoir can be penetrated into from position of fault darker underground.
Step is 3.: select survey area that infiltration coefficient is less than or equal to predetermined value as alternative district, measure the distance in described alternative district and next exploiting field.
Predetermined value in the abovementioned steps is preferably 1.0 * 10
-6Cm/s, the present invention select infiltration coefficient to be less than or equal to 1.0 * 10
-7The zone of cm/s has better barrier performance as alternative district to guarantee open coal mine groundwater reservoir yet to be built, with its water storage performance of further raising.If the tectonic structure of survey area is unstable or the infiltration coefficient of survey area all greater than 1.0 * 10
-6Cm/s, the present invention can also strengthen seepage control project at corresponding open coal mine exploiting field bottom section, for example lays impervious barrier.Certainly, the present invention can also select other predetermined values that are fit to guarantee the barrier performance of groundwater reservoir according to practical factors such as water quality and geologic conditions.
Step is 4.: select in all alternative districts the installation location as the open coal mine groundwater reservoir with the minimum alternative district of the distance in next exploiting field, for example, the alternative district of the edge minimum in next exploiting field of chosen distance.The purpose that makes the less distance of alternative district and next exploiting field maintenance is conveniently to carry water body to the open coal mine groundwater reservoir of building, the reduction energy consumption, and cost is carried in saving.Similarly, in order to fully utilize surface water, the present invention can also preferably measure next exploiting field of described alternative offset and surface water apart from sum, the alternative district of chosen distance sum minimum is as day installation location of coal mine underground reservoir.
More preferably, gravel and sandy gravel that the present invention utilizes the current exploiting field of exploitation to peel off come backfill open coal mine groundwater reservoir, therefore in order to reduce the cost of transportation backfill, the present invention can also measure next exploiting field of described alternative offset, surface water and current exploiting field the refuse dump apart from sum, the alternative district of chosen distance sum minimum is as day installation location of coal mine underground reservoir.Similarly, the present invention can also select to be fit to build according to actual environment the position of open coal mine groundwater reservoir, such as factors such as surface buildingses.
As shown in Figure 2, further specify as an example of the addressing of Shenhua Group open coal mine groundwater reservoir example, this open coal mine is divided into five exploiting fields: the first exploiting field 1, the second exploiting field 2, the 3rd exploiting field 3, the 4th exploiting field 4 and the 5th exploiting field 5, present the first exploiting field 1 has been exploited complete, exploitation work is advanced into the second exploiting field 2, carry out at present the stripping operation in the second exploiting field 2, therefore carrying out the groundwater reservoir location positioning in 1 bottom, the first exploiting field.
Step is 1.: utilize geophysical survey and prospecting by boring mode to explore the tectonic structure of the coal mining hole bottom section in the first exploiting field 1, gather simultaneously the rock specimens of 10m depths, institute survey area bottom.
Step is 2.: stratum, rock stratum, the structure of the hole bottom section of mining are analyzed and judged, select the rock specimens of the survey area of geology construction of stable to carry out osmotic coefficient investigating, as shown in Figure 2, select the coal mining hole of bottom geology construction of stable, namely filtering out tectonic structure is regional A, B, C, the D of horizontal tectonics or oblique structure.
Step is 3.: the infiltration coefficient to regional A, B, C, D is measured, and the infiltration coefficient of described exploration A, B, C, D all is less than or equal to 1.0 * 10
-6Cm/s satisfies the open coal mine groundwater reservoir to the requirement of bottom of the reservior, and therefore regional A, B, C, D all can be used as alternative district.
Step is 4.: select the minimum regional A of the distance in regional A, B, C, D and lower the second exploiting field 2 as the installation location of open coal mine groundwater reservoir.As shown in Figure 2, regional A is nearest apart from the second exploiting field 2, therefore builds the open coal mine groundwater reservoir at this place.By the open coal mine groundwater reservoir that said method is determined, both the convenient water body of carrying can also reduce energy consumption to described open coal mine groundwater reservoir, saved and carried cost.In addition, zone A is minimum apart from sum apart from surface water position and refuse dump, therefore set up the open coal mine groundwater reservoir at the A place and not only can with groundwater reservoir and ground statement comprehensive utilization, can also reduce the transportation cost that the backfill on the refuse dump is transported to regional A.
Above-described embodiment is only for explanation the present invention's; and be not to be limitation of the present invention; the those of ordinary skill in relevant technologies field; in the situation that does not break away from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also should belong to category of the present invention, and scope of patent protection of the present invention should be limited by each claim.
Claims (8)
1. the location determining method of an open coal mine groundwater reservoir is characterized in that, comprises the steps:
Step is 1.: the tectonic structure of exploration open coal mine exploiting field bottom section gathers the rock specimens of bottom, open coal mine exploiting field institute survey area simultaneously;
Step is 2.: judge the tectonic structure of institute's survey area, select the rock specimens of the survey area of geology construction of stable to carry out osmotic coefficient investigating;
Step is 3.: select survey area that infiltration coefficient is less than or equal to predetermined value as alternative district, measure the distance in described alternative district and next exploiting field;
Step is 4.: select in all alternative districts the installation location as the open coal mine groundwater reservoir with the minimum alternative district of the distance in next exploiting field.
2. the location determining method of open coal mine groundwater reservoir according to claim 1 is characterized in that, step 1. in, described exploration is geophysical survey and/or prospecting by boring.
3. the location determining method of open coal mine groundwater reservoir according to claim 1 is characterized in that, step 1. in, from being positioned at the dark station acquisition rock specimens of open coal mine exploiting field bottom 10m.
4. the location determining method of open coal mine groundwater reservoir according to claim 1 is characterized in that, step 2. in, the stable survey area of tectonic structure is horizontal tectonics and/or oblique structure.
5. the location determining method of open coal mine groundwater reservoir according to claim 1 is characterized in that, step 3. in, select described infiltration coefficient to be less than or equal to 1.0 * 10
-7The zone of cm/s is as alternative district.
6. the location determining method of open coal mine groundwater reservoir according to claim 1 is characterized in that, step 3. in, described predetermined value is 1.0 * 10
-6Cm/s.
7. the location determining method of open coal mine groundwater reservoir according to claim 1, it is characterized in that, step 4. in, measure each next exploiting field of alternative offset and surface water apart from sum, the alternative district of chosen distance sum minimum is as day installation location of coal mine underground reservoir.
8. the location determining method of open coal mine groundwater reservoir according to claim 1, it is characterized in that, step 4. in, measure next exploiting field of described alternative offset, surface water and current exploiting field the refuse dump apart from sum, the alternative district of chosen distance sum minimum is as the installation location of open coal mine groundwater reservoir.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468545A (en) * | 2018-04-19 | 2018-08-31 | 中国矿业大学 | A kind of seasonality adopt-arranges the storage of open coal mine water resource and concocting method |
| CN108468567A (en) * | 2018-01-18 | 2018-08-31 | 中煤科工集团西安研究院有限公司 | The method for building coal mine communication type groundwater reservoir using basement rock curved bel |
| CN108663724A (en) * | 2018-06-08 | 2018-10-16 | 中国矿业大学 | A kind of coal mine underground reservoir position selecting method based on Water transfer path |
| CN111680896A (en) * | 2020-05-27 | 2020-09-18 | 北京科技大学 | Coal mine underground reservoir safety distance determination method |
| CN113447996A (en) * | 2021-07-20 | 2021-09-28 | 山东省地质矿产勘查开发局八○一水文地质工程地质大队 | Hydrogeology comprehensive investigation method and investigation system for underground reservoir |
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| US4135578A (en) * | 1976-11-23 | 1979-01-23 | In Situ Technology, Inc. | Method of preparing a wet coal seam for production in situ |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468567A (en) * | 2018-01-18 | 2018-08-31 | 中煤科工集团西安研究院有限公司 | The method for building coal mine communication type groundwater reservoir using basement rock curved bel |
| 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 |
| CN108468545A (en) * | 2018-04-19 | 2018-08-31 | 中国矿业大学 | A kind of seasonality adopt-arranges the storage of open coal mine water resource and concocting method |
| CN108663724A (en) * | 2018-06-08 | 2018-10-16 | 中国矿业大学 | A kind of coal mine underground reservoir position selecting method based on Water transfer path |
| CN108663724B (en) * | 2018-06-08 | 2020-09-04 | 中国矿业大学 | Coal mine underground reservoir position selection method based on water resource transfer path |
| CN111680896A (en) * | 2020-05-27 | 2020-09-18 | 北京科技大学 | Coal mine underground reservoir safety distance determination method |
| CN111680896B (en) * | 2020-05-27 | 2023-06-20 | 北京科技大学 | Coal mine underground reservoir safety distance determining method |
| CN113447996A (en) * | 2021-07-20 | 2021-09-28 | 山东省地质矿产勘查开发局八○一水文地质工程地质大队 | Hydrogeology comprehensive investigation method and investigation system for underground reservoir |
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| CN102981188B (en) | 2015-10-28 |
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Address after: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Patentee after: China Shenhua Energy Co.,Ltd. Patentee after: Guoneng Baorixile Energy Co.,Ltd. Patentee after: CHINA University OF MINING AND TECHNOLOGY BEIJING Address before: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Patentee before: China Shenhua Energy Co.,Ltd. Patentee before: SHENHUA BAORIXILE ENERGY Ltd. Patentee before: CHINA University OF MINING AND TECHNOLOGY BEIJING |
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