On the basis of thick Luohe formation sandstone and thick loess layer of upper overburden of mining coal seam of Binchang coal mine district, surface movement of Tingnan coal mine was surveyed.The results showed that surface movement deformation was controlled by Luohe sandstone, surface movement was small under extremely inadequate mining, subsidence ratio was only 0.046, surface deformation was small, buildings on surface would not be destroyed, surface movement increased obviously under nearly ex-tremely adequate mining, subsidence ratio reached 0.22, but its smaller than the maximal subsidence value, mining subsidence scope was consistent basically between inadequate mining and adequate mining, the value of loess layer movement angle depend on lo-ess layer thickness and slope.%针对彬长矿区开采煤层覆岩上段厚黄土层、 厚洛河组砂岩的特殊条件,在亭南煤矿进行了地表移动观测.观测数据分析表明,洛河组砂岩对地表移动变形起着控制作用,在极不充分开采条件下,地表移动很小,下沉率仅为0.046,地表变形微弱,不会对地表建筑设施造成损坏;在接近充分采动条件下,地表移动增幅较大,变形明显,下沉率达到0.22,但远未达到最大下沉值;非充分采动沉陷范围与充分采动基本一致,黄土层的移动角大小取决于黄土层厚度和坡度.
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