FOUR CRITERIA OF STABILITY ANALYSIS AND ASSESSMENT OF HIGH ROCK SLOPE
LI Ning1，2，QIAN Qihu3
(1. Institute of Geotechnical Engineering，Xi¢an University of Technology，Xi¢an，Shaanxi 710048，China；2. State Key Laboratory of Frozen Soil Engineering，Cold and Arid Regions Environmental and Engineering Research Institute，Chinese Academy of Sciences，Lanzhou，Gansu 730000，China；3. Engineering Institute of Engineering Corps，PLA University of Science and Technology，
Nanjing，Jiangsu 210007，China)
Abstract：For high rock slopes，the mechanical parameters on the potential sliding surface，the reinforcement forces needed after slope excavation，and the correlation between the calculated factor of safety and actual safety margin will directly influence engineering safety and economy. Based on back analysis methods for determining mechanical parameters of potential sliding plane and their shortcomings，the minimum value criterion of mechanical parameter selection is proposed；and the maximum reinforcement force criterion is then proposed on the basis of the equivalence of the largest reinforcement force needed and the weight of excavated rock body. Finally，the upper and lower limit criteria of the numerical results used for stability analysis and assessment are put forward and applied to engineering design based on PAN Jiazheng¢s upper and lower limit theory. It will helpfully provide designers with criteria of slope stability analysis and assessment on reinforcement scheme selection of high rock slope.
李宁,钱七虎. 岩质高边坡稳定性分析与评价中的四个准则[J]. 岩石力学与工程学报, 2010, 29(09): 1754-1759.
LI Ning1，2，QIAN Qihu3. FOUR CRITERIA OF STABILITY ANALYSIS AND ASSESSMENT OF HIGH ROCK SLOPE. , 2010, 29(09): 1754-1759.
2010, Vol. 29 
