标题：Difference between First Fracturing and Weighting Interval in Transferring Rock Beam Theory
作者：Huang Shouqing; Lu Guozhi; Li We
作者机构：[Huang Shouqing] China Univ Min, Sch Mech & Civil Engn, Beijing 100083, Peoples R China.; [Lu Guozhi] Shandong Univ Sci & Technol, Inst Min Engn, Ta 更多
会议名称：2nd International Conference on Mine Hazards Prevention and Control
会议日期：OCT 15-17, 2010
来源：2010 INTERNATIONAL CONFERENCE ON MINE HAZARDS PREVENTION AND CONTROL
关键词：Transferring rock beam; The first fracturing length; The first weighting; interval; Motion equation
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.