文章摘要
鲁克恩.基于强度折减法的伯斯阿木水库边坡稳定性分析[J].江西水利科技,2022,(6):
基于强度折减法的伯斯阿木水库边坡稳定性分析
Slope stability analysis of Bosiamu reservoir based on strength reduction method
  
DOI:
中文关键词: 稳定性分析  强度折减法  开挖  安全系数  滑裂面
英文关键词: Stability analysis  Strength reduction method  Excavation  Safety factor  Sliding surface
基金项目:
作者单位
鲁克恩 新疆维吾尔自治区水利水电勘测设计研究院有限责任公司 
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中文摘要:
      伯斯阿木水库的联合进口段岩石高陡,风险较大。本文基于强度折减法,使用有限元对边坡的天然工况、开挖工况进行稳定分析,得到安全系数和不利滑裂面。结果显示,此边坡塑性区从坡底开始产生并向上扩展,未达到完全贯通之前就发生局部失稳。两种工况的安全系数都满足要求,但开挖工况的安全系数较小,且滑裂面有所不同。对比三种失稳判据,计算不收敛和位移突变具有一致性,塑性区贯通在局部失稳的情况不适用。
英文摘要:
      The combined entrance section of Bosamu reservoirs is at high risk for its high and steep rocks.Based on the strength reduction method,this paper uses the finite element to analyze the stability of the natural working condition and excavation working condition of the slope,and obtains the safety factor and adverse sliding surface.The results show that the plastic zone of the slope starts from the bottom of the slope and extends upward,and local instability has occurred before it reaches full penetration.The safety factors of the two working conditions meet the requirements,but the safety factor of the excavation working condition is small,and the sliding surface is different.Compared the three instability criteria,the calculation misconvergence and displacement mutation are consistent,and the penetration of plastic zone is not applicable in the case of local instability.
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