马克 赵雷 朱兴波 赵关香 赵伟

Make Zhaolei Zhuxingbo Zhaoguanxiang Zhaowei 

 云南磷化集团有限公司  昆明市，650600

Yunnan Phosphate Group Co Ltd , Kunming650600

摘要：露天矿山排土场容易出现局部的失稳，从而产生一系列的安全隐患甚至生态环境破坏和地质灾害等问题，定期对排土场进行稳定性分析是矿山安全生产中非常重要的一部分。本文以尖山磷矿东排土场的尖山箐排土场为对象，采用极限平衡法中的简化毕肖普法对排土场边坡圆弧滑动面进行稳定性计算，按正常运行、暴雨和地震工况分别进行计算，其安全稳定性系数分别为1.373、1.318、1.168，计算结果满足规范和设计要求，计算结果表明尖山箐排土场在现状堆高时三种运行工况下均稳定。

Abstract: Open pit mine waste dump is prone to local instability, resulting in a series of safety hazards, even ecological environmental damage and geological disasters. Regular stability analysis of waste dump is a very important part of mine safety production. This paper takes Jianshanqing Waste Dump in the east waste dump of Jianshan Phosphate Mine as the object, uses the simplified Bishop method in the limit equilibrium method to calculate the stability of the circular slip surface of the waste dump slope. According to the normal operation, rainstorm and earthquake conditions, the safety stability coefficient is 1.373, 1.318, 1.168, and the calculation results meet the specifications and design requirements, The calculation results show that the Jianshanqing waste dump is stable under three operating conditions at the current height.

关键词：露天矿山；排土场；稳定性分析；极限平衡法

Keywords: open-pit mine; refuse dump; stability analysis; limit equilibrium method