井下高应力膨胀破碎软岩巷道稳定性措施研究与应用

High stress dilatation broken soft rock underground of Chifeng Chai Mine Company

我国的金矿开采方式主要是地下开采,因此就要求在井下大量开掘巷道。要保证金矿的生产与建设,就一定要保证围岩的稳定以及巷道的畅通。随着经济的不断发展,开采的强度、广度、深度也在不断提升,巷道的地质条件也越来越复杂,松软、破碎围岩巷道及大断面巷道等复杂困难条件占得比重越来越大,显著增加了巷道支护难度。

The main way of gold mining in China is underground mining,so a large number of tunnels are required to be excavated underground.To ensure the production and construction of gold deposits,we must ensure the stability of surrounding rocks and the smooth flow of laneways.With the continuous development of the economy,the intensity,breadth and depth of mining are also increasing,and the geological conditions of the roadway are becoming more and more complex.The complex and difficult conditions such as soft,broken surrounding rock roadway and large section roadway are becoming more and more serious,which significantly increases the difficulty of roadway support.