Abstract: Study on Mechanism and Control of Slope Instability Induced by Underground Mining Abstracts

The high increase of Chinese economy greatly stimulates the demands to energy and mineral resources, and thus promotes mining industry prosperity. In this process a lot of environmental and hazardous geological problems are produced, especially the slope instability and mass movements due to underground mining. Since 1980s a series of this kind of geological hazards happened in China and brought about heavy losses of human life and property. Therefore, it is very essential to study the mechanism of slope instability, and provide the principles of prevention and control of slope failure because of underground mining. In this subject following main research contents are involved: (1) mechanism of interaction between underground space of mining and instability of above slopes; (2) stress field, slope deformation and failure laws resulted by underground mining; and (3) prevention and control principles of slope instability.

The technical clues and methods about above studies can be summarized as follows: (1) by field survey of some typical examples of slope instability induced by underground mining, establishing the basic geomechanics models of slope instability; (2) studying the stress field and displacement variation of slopes with the formation and gradually extension of underground mining space by numerical simulation such as finite element method; and (3) based above studies, finding out the mechanism of slope instability, and putting forward prevention principles and control measures.  

AAPG Search and Discovery Article #90940©1997 AAPG Foundation Grants-in-Aid