Accident Investigation of Mine Subsidence with Application of Particle Flow Code

作     者：Li Zhao Wang Jin-an 

作者机构：State Key Laboratory of High-efficient Mining and Safety of Metal Mines Ministry of Education University of Science and Technology Beijing Beijing 100083 China School of Civil and Environmental Engineering University of Science and Technology Beijing Beijing 100083 China 

出 版 物：《Procedia Engineering》 

年 卷 期：2011年第26卷

页      面：1698-1704页

学科分类：12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 08[工学] 

主　　题：particle flow code numerical simulation mine subsidence 

摘      要：The mine subsidence happened in Shandong province will be investigated and analyzed as a case study. According to the field survey study, the numerical model is established with PFC. Determining the micromechanics of rock parameters by uniaxial testing, the meso-structural features of rock and soil and the macro-mechanical response of those are linked. The model simulates the process of subside and calculates the distribution of contact force and displacement of ore particles, which have a good consistency in comparison with the actual survey data. Thus this method used into the mechanical analysis of collapse process, the displacement of ore and rock and so on, is effective.