Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s12665-017-6452-9 |
Analysis of developmental features and causes of the ground cracks induced by oversized working face mining in an aeolian sand area | |
Li, Liang1; Wu, Kan1; Hu, Zhenqi2; Xu, Yuankun1; Zhou, Dawei1 | |
通讯作者 | Wu, Kan |
来源期刊 | ENVIRONMENTAL EARTH SCIENCES |
ISSN | 1866-6280 |
EISSN | 1866-6299 |
出版年 | 2017 |
卷号 | 76期号:3 |
英文摘要 | In order to satisfy the energy demand of China, it is an effective way to exploit coal resources efficiently in western China. When a coal seam with a shallow burial depth is mined on a large working face with width of 300 m in a semi-desert aeolian sand area of western China, the induced subsidence and damage of ground surface are remarkably different from those induced by a traditional mining condition. By taking Working Face 12,406 of Bulianta Coalmine in Shendong Mining Area as an example, this paper, based on actual measurement data, analysed the developmental features and causes of ground surface racks. Research results showed that the shape of the static crack in the peripheral area on the working face was very similar to that contained in the actual measurement results of other areas; specifically, such static crack was arc-shaped and the actually measured static crack angle was 84.5 degrees. However, the dynamic crack above the working face took on uniqueness in two developmental cycles (expansion to restoration). This phenomenon is not available in other research areas. Starting from the structure of rock strata, this paper analysed the two developmental cycles of dynamic cracks according to the periodic fracture theory of key stratum and verified the results of theoretical analysis by employing the similar material model. |
英文关键词 | Aeolian sand Shallow burial depth Oversized working face Ground surface crack Secondary development |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000394967300015 |
WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/198649 |
作者单位 | 1.China Univ Min & Technol, Jiangsu Key Lab Resources & Environm Informat Eng, Xuzhou 221116, Peoples R China; 2.China Univ Min & Technol Beijing, Inst Land Reclamat & Ecol Restorat, Beijing 100083, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Liang,Wu, Kan,Hu, Zhenqi,et al. Analysis of developmental features and causes of the ground cracks induced by oversized working face mining in an aeolian sand area[J],2017,76(3). |
APA | Li, Liang,Wu, Kan,Hu, Zhenqi,Xu, Yuankun,&Zhou, Dawei.(2017).Analysis of developmental features and causes of the ground cracks induced by oversized working face mining in an aeolian sand area.ENVIRONMENTAL EARTH SCIENCES,76(3). |
MLA | Li, Liang,et al."Analysis of developmental features and causes of the ground cracks induced by oversized working face mining in an aeolian sand area".ENVIRONMENTAL EARTH SCIENCES 76.3(2017). |
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