煤矿采空沉陷区地面变形危害评估研究

The study on risk assessment of the empty area ground subsidence of coal mine

深部煤层开采引起的采空沉陷区地面变形,是矿山开采普遍存在的环境工程地质问题,不仅破坏矿山环境,而且造成巨大经济损失。结合力学分析及矿山数据资料,本文运用三角函数方法,对地面变形的最大沉陷量与沉陷面积进行估算,预测煤层开采后的危害程度。根据深部开采地表移动变形特点,调整生产方式,制定合理措施减轻地面沉陷,为减少或防止矿区地面变形危害提供理论支持。

The empty area ground ＇s subsidence which caused by the deep coal mining is the widespread environmental engineering geologic problem,it not only wreck the mine environment,but make great economic loss.Combining mechanical analysis and case analysis,the text make use of mathematic met hod of trigonometric function to forecast the max ground subsidence value and ground subsidence area,to predict the damage degree after the all coal seam were exploited.To adjust the mode of production and make reasonable measure to lighten ground subsidence,according to the characterist ic of ground subsidence caused by deep coal mining,So that,We can provide theory sustain for lightening or preventing the harm caused by empty area ground＇s subsidence.