【摘要】 为评价较大区域塌陷发育特征和危害程度,在调查15个煤矿采空区的基础上,按城区、乡镇、村庄和农田荒地四个不同区域,建立塌陷危害程度分级标准。并以此标准对郑煤米村煤矿进行危害程度分区,绘制大比例尺塌陷危害分区图。同时针对不同的分区及其塌陷危害程度,提出相应的塌陷治理措施。更多还原

【Abstract】 Based on the survey of 15 coal mining areas,grading standards of damage degree are set up respectively for the city,towns,villages and farmland wasteland,to assess development characteristics and damage degree in a rather big region.These standards are used to divide the Micun coalmine into sub-zones and draw a large-scale zoning map for it.And control measures are proposed for the different sub-zones according to their harm level.更多还原