Barton经验公式在岩质边坡稳定性分析中的应用  

The Use of Barton's Empirical Formula in Stability Analysis for Rock Slopes

作　　者：李玲[1] 乔春生[1] 

机构地区：[1]北方交通大学土木建筑工程学院,北京100044

出　　处：《北方交通大学学报》2002年第2期107-110,共4页Journal of Northern Jiaotong University

摘　　要：由于岩质边坡的失稳几乎都是沿着结构面发生的 ,而岩体结构面的抗剪性能并不完全满足莫尔—库仑准则 ,因此在岩质边坡的稳定性分析中采用莫尔—库仑准则会带来较大误差 .本文用Barton经验公式代替莫尔—库仑准则进行岩质边坡的极限平衡稳定性分析 ,以更好地反映岩体结构面的抗剪性能 。Since the stability failure of rock slopes happens almost along joints, while the shearing characteristic of joints does not fully accord with Mohr_Coulomb's criteria, using Mohr_Coulomb criteria in stability analysis for rock slopes will result in large error. This paper replaces Mohr_Coulomb's criteria with Barton's empirical formula in limit equilibrium analysis for rock slopes in order to properly show the shearing characteristic of joints, and illustrates the difference between using of Mohr_Coulomb's criteria and Barton's empirical formula in stability analysis for rock slops with a simple example.

关 键 词：岩质边坡 稳定 结构面 莫尔-库仑准则 Barton经验公式 极限平衡分析 

分 类 号：TU457[建筑科学—岩土工程]