Difference between First Fracturing and Weighting Interval in Transferring Rock Beam Theory

摘要：

Based on the transferring rock beam theory, this paper argues that the first fracturing length and the first weighting interval of the rock beam fracture are two different parameters. Such mechanical parameters as rock beam structure and mechanical properties affect the first fracturing length, and that besides the first weighting interval were found. Other engineering parameters as the working face support strength, advancing speed, and coal bed thickness can influence the first fracturing of rock beam structure. In this paper, the mechanical models for the relevant parameters are set up. In addition, the relevant factors were taken into the motion equation, which has been proved sound and feasible in practical application.

关键词： Transferring rock beam The first fracturing length The first weighting interval Motion equation

作者: HUANG Shouqing LUGuozhi LI Wei

作者单位: School of Mechanics and Civil Engineering, China University of Mining, Beijing 100083, China Institute of Mining Engineering, Shandong University of Science and Technology, Taian, Shandong 2710 Academician pioneering zone, Dalian University, Dalian, Liaoning 116622, China

会议类型: 国际会议

会议名称: 2010 International Conference on Mine Hazards Prevention and Control(第二届矿山灾害预防与控制国际学术会议 ICMHPC)

会议地点: 青岛

会议语种:英文

页码: 123-129

在线出版日期: 2010-10-15（万方平台首次上网日期，不代表论文的发表时间）