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| RESEARCH ON MECHANISM AND MONITORING AND EARLY-WARNING TECHNOLOGY OF LANDSLIDE IN LUOSHAN MINING AREA |
| TAO Zhigang1，2，ZHANG Bin1，2，HE Manchao1，2 |
(1. State Key Laboratory for Geomechanics and Deep Underground Engineering，China University of Mining and Technology，Beijing 100083，China；2. Research Center of Geotechnical Engineering，China University of Mining and
Technology，Beijing 100083，China) |
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Abstract With the scale extending of mining，the landslide in Luoshan mining area has became more and more serious(405.2×105 m3)，which are being threatened to the sustainable safe mining of the underground mineral resources，such as molybdenum，gold and so on. First，in order to predict its landslide disaster early and guide the mining，the origin of Luoshan landslide is analyzed by utilizing the theories of mining and engineering geology. The results show that the weak geologic structure and unreasonable mining sequence and concentrated regional rainfall mainly caused those landslides. Then，a kind of new idea that uses mining theories to control landslide is put forward，and mining sequence is adjusted timely，which is from the slope top to the slope toe，making the slope more stability. Finally，based on the sliding criterion that sliding force is greater than the anti-sliding force is the necessary and sufficient conditions for occurrence of landslide，the principle and method for sliding force remote monitoring is presented；and a kind of systemic landslide remote monitoring network is established in Luoshan landslide mass. After 10-month site test，the landslide mass tends to be stable；and it shows that the method of using mining to control landslide is scientific and practical.
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Received: 04 March 2010
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2011, Vol. 30 
