Ecological Research on the Cracks Evolution Mechanism of Coal -Rock Mass in Deep Coal Mine
文献类型：期刊论文
| 作者 | Liu, Bin; Li, Jinlan; Kang, Yongshui |
| 刊名 | EKOLOJI
 |
| 出版日期 | 2019 |
| 卷号 | 28期号:107页码:4537-4543 |
| 关键词 | coal-rock mass gas drainage crack evolution mechanism AE technique model test stopping method fracture zone shape stress field crack features of fracture zone |
| ISSN号 | 1300-1361 |
| 英文摘要 | Coal mine gas accident is a major mine disasters, gas drainage within the coal in front of mining face is a scientific crucial method to avoid gas accident and achieve safe and efficient mining. In order to provide reliable theoretical basis for improving the efficiency of gas drainage, the evolution law of cracks and formation mechanism of fracture damage zone under the high stress unloading condition is studied systematically for certain engineering, through carrying out the model test and adopting AE technique. The results show that: 1) the size of fracture zones are depended on the time of stopping and the position of stope face, and the shape of fracture zones is trapezoidal approximately, the height of fracture zone can reach to 50 times the mining height; 2) After finishing the face mining, the stress field and fracture field is experienced adjusting phase and a relative calm phase successively, and the stress of coal lay nearby stope is released and new cracks are generated, fractured field evolution have a significant time and space effect; 3) based on the features of cracks in fracture zone, the fracture zone is divided to damaged zone and failure zone, the failure zone consisting of cracking zone, crushing zone and wedge-shape fracture zone, the crack evolution mechanism of the zones mentioned above are analysed. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000461678300507 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/15085]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Beijing, Peoples R China; 2.Hubei Univ Technol, Sch Civil Engn, Wuhan, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Bin,Li, Jinlan,Kang, Yongshui. Ecological Research on the Cracks Evolution Mechanism of Coal -Rock Mass in Deep Coal Mine[J]. EKOLOJI,2019,28(107):4537-4543. |
| APA | Liu, Bin,Li, Jinlan,&Kang, Yongshui.(2019).Ecological Research on the Cracks Evolution Mechanism of Coal -Rock Mass in Deep Coal Mine.EKOLOJI,28(107),4537-4543. |
| MLA | Liu, Bin,et al."Ecological Research on the Cracks Evolution Mechanism of Coal -Rock Mass in Deep Coal Mine".EKOLOJI 28.107(2019):4537-4543. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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