Development height measurement and water source analysis of water-conducting fractured zone in Hulusu Coal Mine

JIANG Kun; ZHAO Fei; WU Fang; HAO Yinghao; WANG Zetang; WANG Chaoyong

doi:10.12075/j.issn.1004-4051.20240872

CHINA MINING MAGAZINE > 2024 > 33(S1): 377-381. > DOI: 10.12075/j.issn.1004-4051.20240872

JIANG Kun，ZHAO Fei，WU Fang，et al. Development height measurement and water source analysis of water-conducting fractured zone in Hulusu Coal Mine[J]. China Mining Magazine，2024，33（S1）：377-381. DOI: 10.12075/j.issn.1004-4051.20240872

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Development height measurement and water source analysis of water-conducting fractured zone in Hulusu Coal Mine

1.
Zhongtian Hechuang Energy Co.，Ltd.，Erdos 017000，China
2.
Xuzhou Datun Engineering Consulting Co.，Ltd.，Peixian 221618，China
3.
China University of Mining and Technology，Xuzhou 221116，China

More Information

Received Date: May 17, 2024
Revised Date: May 19, 2024
Accepted Date: May 23, 2024
Available Online: July 04, 2024

Graphical Abstract

Abstract

Abstract

Predicting the development height of water-conducting fractured zones is crucial for roof water exploration and release design in order to eliminate water inrush or well flooding accidents in overlying aquifer. Through numerical simulation, drilling and water injection, observation, it is found that the development of water-conducting fractures in 21404 working face gradually evolved from an initial “arch shape” to a “saddle shape”. The height of water-conducting fractured zones show an upward trend, and the maximum value is achieved at a pushing distance of 90 m, which is 116.8 m. The actual water injection test results show that the maximum height of water-conducting fractured zones is 120.5 m, and the relative error with most methods is less than 5%. The hydrochemical and microbial characteristics indicate that the water quality type is typical of Zhiluo Formation water. It indicates that the direct water source of the goaf is Zhiluo Formation aquifer, which has the characteristics of retained and reduced water chemistry. The hydraulic connection between goaf and Cretaceous aquifer is weak.
- numerical simulation,
- water injection,
- water-conducting fractured zone,
- water chemical characteristic,
- microbial species

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References (6)

References

[1]	张伟龙, 黄克军, 张杰, 等. 桑树坪煤矿二号井3#煤“三带”发育规律研究[J]. 陕西煤炭,2020,39(S1):175-142, 208. ZHANG Weilong, HUANG Kejun, ZHANG Jie, et al. Research on the development law of the “three zones” of No. 3 coal in the second well of Sangshuping Coal Mine[J]. Shaanxi Coal,2020,39(S1):175-142, 208.
[2]	刘超杰, 高运增, 赵高博, 等. 厚松散层软弱覆岩工作面“三带”发育特征与高度研究[J]. 矿业安全与环保,2022,49(1):53-58. LIU Chaojie, GAO Yunzeng, ZHAO Gaobo, et al. Study on the development characteristics and height of the “three zones” in thick loose layer soft overburden workface[J]. Mining Safety and Environmental Protection,2022,49(1):53-58.
[3]	郭团结, 高超, 赵继涛, 等. 倾斜煤层覆岩运移规律及“上三带”高度计算[J]. 煤炭技术,2024,43(4):32-37. GUO Tuanjie, GAO Chao, ZHAO Jitao, et al. The migrationl law of overlying strata in inclined coal seams and the calculation of the height of the “upper three zones”[J]. Coal Technology,2024,43(4):32-37.
[4]	刘志高, 张守宝, 皇甫龙. 腾达煤矿倾斜煤层覆岩运移规律及“上三带”高度的确定[J]. 采矿与岩层控制工程学报,2022,4(3):70-79. LIU Zhigao, ZHANG Shoubao, HUANGFU Long. The migration law of overlying strata in inclined coal seams of Tengda Coal Mine and the determination of the height of the “upper three zones”[J]. Journal of Mining and Rock Control Engineering,2022,4(3):70-79.
[5]	范立民, 李涛, 高颖, 等. 生态脆弱煤矿区水体中微生物群落特征及矿井充水指示[J]. 煤炭科学技术,2024,52(1):255-266. FAN Limin, LI Tao, GAO Ying, et al. Characteristics of microbial communities in water bodies of ecologically fragile coal mining areas and indicators of mine water filling[J]. Coal Science and Technology,2024,52(1):255-266.
[6]	崔鹏飞, 陈向军. 大采高工作面采空区“三带”高度判定研究[J]. 煤,2022,31(3):8-13, 72. CUI Pengfei, CHEN Xiangjun. Research on the height determination of the “three zones” in goaf of large mining height working face[J]. Coal,2022,31(3):8-13, 72.