地下采煤引起斜坡滑动的一个实例——韩城电厂滑坡成因分析

韩城电厂滑坡是一个由大小七个滑坡组成的超大型滑坡。这个滑坡造成了电厂建筑物的严重变形和破坏。经过分析和论证认为,这个滑坡是由横山斜坡地下采煤造成的斜坡岩层移动转化而来的。

A CASE OF SLOPE SLIDE INDUCED BY UNDERGROUND COAL MINING——ANALYSIS FOR LANDSLIDE GENESIS IN HANCHENG POWER PLANT

The Hancheng power plant landslide is a super-scale landslide, which consists of 7 landslides of various sizes. Among them the volume of No. 6 landslide is up to 10,000,000 rn3. The serious deformations and damages of power plant buildings have been caused by landslide.At present, the landslide is in a condition of slow deformation and creeping. Since the slope angle (30?-20?) and dip (6?-8?) of the rock formations are quite gently. Therefore, its movement should be slow all the time and no rapid slipping will occur. The characteristics of the No. 6 landslide mainly are the focus of the analysis and discussion in this paper.The landslide is transformed from the rock formation slipping of slope induced by coal mining beneath Hengshan slope. In this paper, the relationships between occurrence of the landslide and underground coal mining are analysed and proved in detail, and the problems, which should be paid attention to in harnessing the landslide, are put forward.