甲玛铜多金属矿盘区合理回采顺序动态模拟研究

Study on dynamic simulation of reasonable stoping sequence in panel of Jiama copper-polymetallic deposit

在甲玛铜多金属矿地上地下并行大规模开采的复杂条件下,针对地下二期复杂厚大矿体的安全高效回采问题,综合分析矿山开采现状的基础上,提出2种盘区回采顺序方案,采用数值模拟方法对不同的盘区回采方案进行了分析优选,通过对比分析不同回采顺序条件下采场等关键部位的应力、位移的动态响应特性,确定盘区间隔回采方案最佳,该方案可为地下二期矿体安全高效开采提供技术支持。

Under the complicated conditions of large-scale mining in the ground and underground on the Jiama copper polymetallic ore site,based on the comprehensive and analytical mining status of the second-stage complex thick and large ore body,two types of panel mining sequence schemes were proposed.The numerical simulation method was used to analyze the optimization of different panel mining schemes.By comparing and analyzing the dynamic response characteristics of stress and displacement of key parts such as stope in different mining sequence conditions,interval mining scheme was determined to be better.This program can provide technical support for the safe and efficient mining of the underground second-stage ore body.