宽条带跳采研究

为了解决保护地面建筑物与煤炭资源回采率的矛盾,充分利用了宽条带开采和全柱开采这两种采煤方法的优点,结合地表移动与变形的规律,提出了宽条带跳采的采煤方法.通过数值计算,分析了宽条带跳采过程中地表下沉和水平变形对地面建筑物的影响.结果表明建筑物只承受跳采阶段的静态变形和全柱开采阶段的动态变形,避免了全柱开采阶段静态变形对建筑物的影响.说明了宽条带跳采的可行性,为建筑物下安全开采提供了新的开采技术途径.

Research on wide strip skip-mining

In order to solve the contradiction of protecting the buildings on the ground and the mining rate of coal, the mining method of wide strip skip-mining is put forward by making the most of the advantages of both methods of the wide strip mining and full-pillar mining,and combined with the law of the ground move and deformation.It is analyzed that the effect of the subsidence and level deformation of the ground on the building on the ground in the course of wide strip skip-mining.The result of study shows that the building just endures the static deformation of skip-mining and dynamic deformation of full-pillar mining,and avoids the effect of static deformation of furl-pillar mining on the building.It shows the feasibility of wide strip skip-mining,and supplies new mining technological solution for safe mining under the building.