依托某工程项目，分析了研究区工程地质条件和岩层受力破坏机理。依据简便计算参数和易于确定的原则，将急倾斜煤层实际开采空间转化为“滑移空间”，分析研究区地表沉陷问题，利用“滑移空间”计算参数，将单个任意形状开采工作面顺煤层走向划分为若干矩形工作面，并将其各点引起的预测下沉值按叠加原理进行叠加计算，获得采空区多个不规则形状工作面的地表沉降量。根据计算结果绘制地表变形参数的等值线图，并依据相关规范、标准评价地表残余变形对地基稳定性的影响，在综合考虑多项因素影响的前提下，对研究区进行分区，给出了各分区地表稳定性和建筑适宜性。%Based on an engineering project has analyzed study area engineering geological condition and stressed strata failure mecha⁃nism. According to facility computational parameters and easy to determine principles, translated steep-dipping coal seam actual min⁃ing space into“sliding space”, analyzed study area surface subsidence issue. Using“sliding space”computational parameters, an indi⁃vidual arbitrarily shaped working face along the coal seam strike divided into several rectangular working faces, predicted subsidence of each point has been superimposed based on superposition principle, thus obtained many mined-out area irregularly shaped working face surface subsidence. Then isogram of surface deformation parameters plotted based on computed results. And based on relevant codes and standards have assessed impacts from surface residual deformation on foundation stability. After overall consideration of mul⁃tiple impacting factors, carried out study area partitioning, and gave out surface stability and construction adaptability of each subzones.
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