Overburden Migration and Failure Characteristics in Mining Shallow Buried Coal Seam with Thick Loose Layer
Joint Authors
Li, Xiaobin
Xu, Zhuhe
Li, Quansheng
Source
Advances in Materials Science and Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-08-05
Country of Publication
Egypt
No. of Pages
12
Abstract EN
Quite a number of shallow buried coal seams (SBCS) are distributed in China.
The overburden is easily damaged due to the mining of SBCS, resulting in water resources loss and surface damage.
Taking 12403 working face of Wulanmulun coal mine in Shendong mining area as an example, this paper analyzed the overburden migration and failure characteristics after mining SBCS with thick loose layer based on actual measurement data and simulation results.
The results show that the subsidence of strata in caving zone has no skewness feature along strike direction, while the subsidence of strata in fracture zone and bending subsidence zone shows skewness subsidence phenomenon.
An interface exists in the overburden, and the movements of upper and lower strata at the interface have different characteristics.
The cracks penetrating the whole strata exist in bedrock, not in aeolian sand.
The height of water flowing fracture zone is 35.74 m–62.89 m according to the loss of fluid in the borehole and consistent with the results of numerical simulation and similar simulation.
This study can provide a reference for the prediction of the height of water flowing fracture zone and the overburden migration in mining SBCS.
American Psychological Association (APA)
Xu, Zhuhe& Li, Quansheng& Li, Xiaobin. 2020. Overburden Migration and Failure Characteristics in Mining Shallow Buried Coal Seam with Thick Loose Layer. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1129505
Modern Language Association (MLA)
Xu, Zhuhe…[et al.]. Overburden Migration and Failure Characteristics in Mining Shallow Buried Coal Seam with Thick Loose Layer. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-12.
https://search.emarefa.net/detail/BIM-1129505
American Medical Association (AMA)
Xu, Zhuhe& Li, Quansheng& Li, Xiaobin. Overburden Migration and Failure Characteristics in Mining Shallow Buried Coal Seam with Thick Loose Layer. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1129505
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1129505