Capacity characteristics of the underground water reservoir of an open-pit coalmine: a case study in Baorixile
Water storage capacity has always been the core component of the underground water reservoir in open-pit coalmines. Taking the western underground water reservoir of Baorixile open-pit coalmine as the research background, boreholes in the waste dump overlying the underground water reservoir were des...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IWA Publishing
2023-03-01
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| Series: | Water Supply |
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| Online Access: | http://ws.iwaponline.com/content/23/3/1010 |
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| author | Yukai Wang Xiaoli Liu Bo Pang Yanfei Li Zhiguo Cao |
| author_facet | Yukai Wang Xiaoli Liu Bo Pang Yanfei Li Zhiguo Cao |
| author_sort | Yukai Wang |
| collection | DOAJ |
| description | Water storage capacity has always been the core component of the underground water reservoir in open-pit coalmines. Taking the western underground water reservoir of Baorixile open-pit coalmine as the research background, boreholes in the waste dump overlying the underground water reservoir were designed and drilled, and the capacity characteristics of the underground water reservoir were studied by a layered summation method. These test results revealed that: (1) the regional strata from shallow to deep are the near-surface loose layer, upper bench loess, mixed stripping material, glutenite water reservoir layer and rubble collecting ditch; and the glutenite water reservoir layer is the main water storage body of the underground water reservoir. (2) Permeability coefficient, porosity, layered and cumulative water storage of the western underground water reservoir in Baorixile open-pit coalmine increase with the elevation increase, and show a quadratic function relationship. (3) The total storage capacity of the underground water reservoir is 1.2234 Mm3, and the average porosity is 0.1003, that is, each volume of the water storage medium can store 0.1003 volume of water. These results provide a scientific basis for the evaluation and determination of the water storage capacity of the underground water reservoir in open-pit coalmines.
HIGHLIGHTS
The design and construction of the underground reservoir in Baorixile open-pit coalmine.;
A calculation method of underground reservoir capacity in open-pit coalmines based on a field borehole water injection test.;
The reservoir capacity characteristics of the western underground reservoir of Baorixile open-pit coalmine.; |
| first_indexed | 2024-04-09T19:03:28Z |
| format | Article |
| id | doaj.art-39cca99c40a544dbb971842a116aadbd |
| institution | Directory Open Access Journal |
| issn | 1606-9749 1607-0798 |
| language | English |
| last_indexed | 2024-04-09T19:03:28Z |
| publishDate | 2023-03-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Supply |
| spelling | doaj.art-39cca99c40a544dbb971842a116aadbd2023-04-07T15:23:58ZengIWA PublishingWater Supply1606-97491607-07982023-03-012331010102510.2166/ws.2023.036036Capacity characteristics of the underground water reservoir of an open-pit coalmine: a case study in BaorixileYukai Wang0Xiaoli Liu1Bo Pang2Yanfei Li3Zhiguo Cao4 State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China Information Institute, Ministry of Emergency Management of the People's Republic of China, Beijing 100029, China Shenhua Baorixile Energy Industry Co., Ltd., Hulunbuir 021000, China State Key Laboratory of Water Resource Protection and Utilization in Coal Mining, National Institute of Clean and Low Carbon Energy, Beijing 102211, China Water storage capacity has always been the core component of the underground water reservoir in open-pit coalmines. Taking the western underground water reservoir of Baorixile open-pit coalmine as the research background, boreholes in the waste dump overlying the underground water reservoir were designed and drilled, and the capacity characteristics of the underground water reservoir were studied by a layered summation method. These test results revealed that: (1) the regional strata from shallow to deep are the near-surface loose layer, upper bench loess, mixed stripping material, glutenite water reservoir layer and rubble collecting ditch; and the glutenite water reservoir layer is the main water storage body of the underground water reservoir. (2) Permeability coefficient, porosity, layered and cumulative water storage of the western underground water reservoir in Baorixile open-pit coalmine increase with the elevation increase, and show a quadratic function relationship. (3) The total storage capacity of the underground water reservoir is 1.2234 Mm3, and the average porosity is 0.1003, that is, each volume of the water storage medium can store 0.1003 volume of water. These results provide a scientific basis for the evaluation and determination of the water storage capacity of the underground water reservoir in open-pit coalmines. HIGHLIGHTS The design and construction of the underground reservoir in Baorixile open-pit coalmine.; A calculation method of underground reservoir capacity in open-pit coalmines based on a field borehole water injection test.; The reservoir capacity characteristics of the western underground reservoir of Baorixile open-pit coalmine.;http://ws.iwaponline.com/content/23/3/1010permeability coefficientporosityunderground water reservoirwater injection testwater storage capacity |
| spellingShingle | Yukai Wang Xiaoli Liu Bo Pang Yanfei Li Zhiguo Cao Capacity characteristics of the underground water reservoir of an open-pit coalmine: a case study in Baorixile Water Supply permeability coefficient porosity underground water reservoir water injection test water storage capacity |
| title | Capacity characteristics of the underground water reservoir of an open-pit coalmine: a case study in Baorixile |
| title_full | Capacity characteristics of the underground water reservoir of an open-pit coalmine: a case study in Baorixile |
| title_fullStr | Capacity characteristics of the underground water reservoir of an open-pit coalmine: a case study in Baorixile |
| title_full_unstemmed | Capacity characteristics of the underground water reservoir of an open-pit coalmine: a case study in Baorixile |
| title_short | Capacity characteristics of the underground water reservoir of an open-pit coalmine: a case study in Baorixile |
| title_sort | capacity characteristics of the underground water reservoir of an open pit coalmine a case study in baorixile |
| topic | permeability coefficient porosity underground water reservoir water injection test water storage capacity |
| url | http://ws.iwaponline.com/content/23/3/1010 |
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