地面构筑物保护煤柱留设方法分析及优化

Analysis and Optimization Research on the Method of Protecting Coal Pillars with Ground Structures

保护煤柱留设方法是一种通用的方法,缺乏一定的针对性,导致在较厚和较薄煤层中留设的保护煤柱存在不同程度的问题。运用数值模拟的方法分析出现的问题,并在此基础上优化保护煤柱,最终提出根据开采沉陷预计验证并适当调整保护煤柱宽度尺寸的思路,以使保护煤柱既能有效保护受护对象不受损坏,又能尽量少占压资源储量。

The method of protecting coal pillar is a general method,and it is inevitable that it is not targeted enough.The problem of protecting coal pillar in thick and thin coal seam is analyzed by numerical simulation,and the optimization of protecting coal pillar is carried out on this basis.Finally,the idea of protecting coal pillar width can be verified and adjusted according to mining subsidence,so that the protected coal pillar can not only effectively protect the protected object from damage but also minimize the reserves of compressed resources.