中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2007, Vol. 26 ›› Issue (4): 95-100.

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边坡稳定安全储备的双折减系数推导

唐芬1,2,郑颖人2   

  1. 1.重庆交通大学应用技术学院,重庆 400042;2.后勤工程学院军事土木工程系,重庆 400041
  • 收稿日期:2006-07-06 修回日期:2015-05-18 出版日期:2007-08-15 发布日期:2015-05-18
  • 作者简介:唐芬(1968—),女,重庆合川人,副教授,博士生,主要从事岩土与结构相互作用的研究与教学工作.E—mail: tangfen1968@yahoo.com.cn.

Analysis on Safety Reserve of Slope with Two Strength Reduction Factor

TANG Fen1,2,ZHENG Ying-ren2   

  1. 1.School of Applied Technology,Chongqing Jiaotong University,Chongqing 400042,China; 2.Department of Military Civil Engineering,PLA Logistics Engineering College,Chongqing 400041,China
  • Received:2006-07-06 Revised:2015-05-18 Online:2007-08-15 Published:2015-05-18

摘要: 目前均质边坡的极限平衡条分法及有限元强度折减法分析中,C, 均采用同一安全系数或同一折减系数.但C, 在边坡发生滑动时发挥的作用不同、发挥作用的先后秩序不同以及衰减的速度也不同,若采用传统的同一折减系 数或同一安全系数不能反映C, 各自实际的安全储备,因此采用不同的强度折减系数(安全系数)进行定量分析,以 “自承力最大直原理”为依据,得出了C, 采用不同的折减系数更符合实际.

关键词: 双折减系数, 强度折减条分法, 有限元强度折减法

Abstract: Currently the same safe factor or the same strength reduction factor to c and φ is adopted in all limited balance and in strength reduction FEM.But when the slope sliding,C and φ have diferent function,diferent order in producing result and diferent reduction speed.If adopted the same strength reduction factor,the actual safety reserve could not be reflected.So the authors analyzed it quanti6cationally in diferent strength reduction factor.The results indicate that two strength reduction factors are appropriate according to the“maximuMprinciple”.

Key words: two strength reduction factors, strength reduction dividing, strength reduction FEM

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