| 基于Drucker-Prager系列准则的边坡安全系数计算方法 |
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| 引用本文： | 熊欢,肖盛燮.基于Drucker-Prager系列准则的边坡安全系数计算方法[J].重庆交通大学学报(自然科学版),2010,29(4):582-586. |
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| 作者姓名： | 熊欢 肖盛燮 |
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| 作者单位： | 重庆交通大学,土木建筑学院,重庆,400074;重庆交通大学,土木建筑学院,重庆,400074 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 探讨了基于DP(Drucker-Prager)准则的边坡安全系数的计算方法。ANSYS有限元软件采用的岩土材料屈服准则为莫尔-库仑六边形外接圆DP准则,对均质边坡,可先求出外接圆DP准则条件下的安全系数,然后利用安全系数转换公式计算出各DP准则条件下的安全系数。对于具有多层土体的边坡,先通过调整各层土体的c,φ值,以实现DP系列准则间的相互转换,再计算得到各DP准则条件下的安全系数。通过算例验证了所提出的方法的可行性。
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| 关 键 词： | 有限元强度折减法 边坡安全系数 屈服准则 |
Calculation Method of Slope Stability Safety Factor Based on the Drucker-Prager Criterion |
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| XIONG Huan,XIAO Sheng-xie.Calculation Method of Slope Stability Safety Factor Based on the Drucker-Prager Criterion[J].Journal of Chongqing Jiaotong University,2010,29(4):582-586. |
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| Authors: | XIONG Huan XIAO Sheng-xie |
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| Institution: | XIONG Huan,XIAO Sheng-xie (School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China) |
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| Abstract: | Calculation method of slope stability safety factor was proposed based on the Drucker-Prager criterion.Currently,the Mohr-Coulomb hexagon circumcircle Drucker-Prager criterion was adopted in the ANSYS program.For homogeneous slope,the safety factor with the Mohr-Coulomb hexagon circumcircle Drucker-Prager criterion was calculated by using ANSYS,therefore the safety factor could be obtained with the deduced conversion formulae based on the Drucker-Prager yield criterion.For the slope with multi-layer,the tra... |
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| Keywords: | strength reduction of FEM slope safety yield criterion |
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