Study on Numerical Simulation of Stability of Strip Pillar Influenced by Reserved Size

摘要：

In order to confirm the influence of pillar stability and surface from reserved size of strip pillar, three-dimensional simulation was used to study the breadth of plastic area of pillar and surface subsidence value based on the inclined strip pillar of certain mine. The results show that it is a gradual failure process for strip pillar from mining formation to yield, and the pillars from different places in the same district stress differently, so do different parts of the same strip pillar; the greater pillar width, the higher stability. With the same extraction ratio, the value of surface subsidence obviously increases along with increase of mining width and reserved breadth.

关键词： Strip pillar Stability Plastic area of pillar Core space ratio Three-dimensional simulation

作者: CHANG Xikun HUANG Dongmei CHEN Juntao ZHANG Fengqiang

作者单位: Key Laboratory of Mining Disaster Prevention and Control, Shandong University of Science and Technol ShanDong Provincial Bureau of Prison Administration, Jinan 250001, Shandong, 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: 712-716

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）