大采深非充分开采地表沉陷规律实测分析

摘要

By setting up surface movement observation station in a coalmine of Pingdingshan mining field, surface movement rule of non-full mining was analyzed. Surface movement angle parameters and calculation parameters were obtained. Results showed that sur-face subsidence influence range and deformation value reduced largely, angle parameters of strata movement was larger than those of full mining and surface subsidence and deformation tended to be gentle. The results could be used to instruct non-full mining under similar condition and provide reference for mining under buildings, railways and water-bodies.%通过在平顶山矿区某矿建立地表移动观测站，获得了非充分开采条件下的地表移动实测数据，对该条件下的地表沉陷规律进行了分析，获得了该条件下的地表移动角量参数和地表移动计算参数。研究结果表明：非充分开采条件下地表沉陷影响范围和沉陷变形值均明显减小，岩层移动各角量参数大于充分开采条件下的角量参数，地表沉陷变形趋于平缓。研究结果可用于指导非充分开采在类似地质采矿条件下的煤矿开采，为解放“三下”压煤提供了依据。