The destruction of surface building caused by deformation and movement of strip mine slope is a difficult problem; the effective control on the surface deformation of the slope is of great scientific and practical value. To solve this problem, horizontal and vertical deformation observation methods were used to study the surface movement of strip mine slope of Fushun. The factors of surface deformation were deeply analyzed. According to the surface deformation features around the building, a new geological disaster prevention technology was proposed, called "Combination grouting". Treatment effects of geological disasters were assessed through the water pressure test, coring, radar survey. The results show that the pore region was well filled and consolidated, surface subsidence was under control.

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