Evolution Law of the Fissure of Overlying Strata and the Height of Caving Zone in Fully Mechanized Face

摘要：

　　After finishing the fully mechanized coal mining face, on vertical part, the overlying strata has three zones.Through the caving zone, pressure relief gas entered into the fissure zone and formed the enrichment region of pressure relief gas, so the height of caving zone is the important basis for the design of pressure relief extraction.According to the mining conditions of working face in Tianchi coal mine 301 and the physical and mechanics parameters of the surrounding rock, on the basis of the principle of similarity ratioby, using the method of physics analog simulation test.Meanwhile, through arranged displacement survey points evenly in the model surface, the writer made the simulation for the evolutionary process from open-off cut to overlying strata fracture in the overall process of exploition and made sure the height of caving zone.

关键词： fissure of overlying strata the caving zone analogy simulation sight instrument

作者: DING Yang LI Shugang LIN Haifei CUI Yanbin

作者单位: College of Safety Science and Engineering, Xian University of Science and Technology, Xian 710054, Shanxi, China

会议类型: 国际会议

会议名称: The 2016 International Symposium on Safety Science and Technology(2016安全科学与技术国际会议)

会议地点: 昆明

会议语种:英文

页码: 763-763

在线出版日期: 2016-10-17（万方平台首次上网日期，不代表论文的发表时间）