论文部分内容阅读
协调好资源节约与综合利用、安全之间的矛盾,是实现高速公路压覆矿体协同开采的重要途径。以湖南某大型铅锌矿为例,分析了矿山开采沉陷的影响因素,根据确定的开采移动角和安全保护带宽度等,圈定了高速公路压覆矿体范围,并开展高速公路压覆矿体协同开采设计。结果表明:在采用机械化上向水平分层充填采矿法和自下而上开采顺序的前提下,根据“三带”基础理论确定最高回采标高,留设合理安全隔离矿柱,既能保证井下开采的安全,又大大减少了压覆资源量,推动了企业可持续发展。
To coordinate the contradiction between resource conservation, comprehensive utilization and safety is an important way to achieve coordinated mining of compacted ore bodies on expressways. Taking a large lead-zinc mine in Hunan Province as an example, the influencing factors of mining subsidence are analyzed. According to the determined mining movement angle and the width of safety belt, the range of overburden ore bodies in expressways is delineated, Collaborative mining design. The results show that under the precondition of mechanized horizontal stratified filling mining and bottom-up mining sequence, the highest recovery elevation is determined based on the basic theory of “three belts” Can ensure the safety of underground mining, but also greatly reduce the amount of over-crushing resources and promote the sustainable development of enterprises.