采矿与安全工程学报2016，Vol.33Issue(4)：662-667,675,7.DOI:10.13545/j.cnki.jmse.2016.04.015
基于尖点突变模型的临时矿壁系统失稳机制及矿壁厚度优化
Study on instability mechanism and thickness optimization of temporary ore wall based on cusp catastrophe model
摘要
Abstract
Aiming at the instability of temporary ore wall system, a main problem of non-pillar con-tinuous mining, this paper has applied cusp catastrophe theory to analyze the instability mechanism of ore wall structure on the basis of the study of stability mechanical model of temporary ore wall structure. The cusp catastrophe equation of ore wall buckling instability has been obtained, as well as the neces-sary and sufficient condition of ore wall unstable failure. On this basis, the calculation method and the effect factors for limit thickness of ore wall unstable failure have been deduced and three control meas-ures taken to decrease the thickness and increase the stability of ore wall have also been proposed. Combined with an example of Fenghuangshan copper mine in Anhui, the theoretical calculating value of its ore wall thickness is supposed to be bigger than 5.061 m, while the suitable value in production is 5.5 m, which has verified the theoretical value in industry. The industrial results have shown that the ap-plication of the cusp catastrophe model in the stability analysis and structure design of ore wall system is both reasonable and feasible.关键词
临时矿壁/稳定性/尖点突变模型/厚度设计Key words
temporary ore wall/stability/cusp catastrophe model/thickness design分类
矿业与冶金引用本文复制引用
王贻明,徐恒,吴爱祥,艾纯明,吴鹏..基于尖点突变模型的临时矿壁系统失稳机制及矿壁厚度优化[J].采矿与安全工程学报,2016,33(4):662-667,675,7.基金项目
国家“十二五”科技支撑计划项目(2012 B A B 08 B 02，2013 B A B 02 B 05) （2012 B A B 08 B 02，2013 B A B 02 B 05）
