SHI Huapeng,YU Hongming,HAN Wenqi,et al.Analysis on Stability of Hydraulic-Driven Rock Slope Based on Barton-Bandis Failure Criterion[J].Research of Soil and Water Conservation,2016,23(03):338-342.
基于Barton-Bandis准则下水力驱动型岩质边坡的稳定性分析
- Title:
- Analysis on Stability of Hydraulic-Driven Rock Slope Based on Barton-Bandis Failure Criterion
- 关键词:
- 岩质边坡; 水力作用; 稳定性分析; Barton-Bandis准则
- 分类号:
- TU457
- 摘要:
- 为了将水力作用下岩质边坡稳定性的评价方法与Barton-Bandis非线性破坏准则相结合，探讨了Barton-Bandis准则参数到Mohr-Coulomb准则参数转换的两种常用方法，并推导出了不同计算方法下边坡抗滑稳定性的表达式，然后进行算例分析。结果表明：直接利用JRC-JCS模型计算水力作用下边坡的稳定性是可行的；且在单因素影响下，边坡抗滑稳定性系数与裂隙水深h、坡高H和层面倾角α呈负相关，可分别用线性函数、幂函数来描述，而与JCS，JRC和φb呈正相关，可分别用对数、指数方程来描述；对于裂隙水深h而言，其对等效c，φ值的影响恰好相反，但均可用线性函数拟合，而临界裂隙水深hcr与JCS和JRC的关系分别符合对数、指数特征。
- Abstract:
- In order to combine evaluation method of rock slope stability under the hydraulic pressure and the Barton-Bandis nonlinear failure criterion, two common transfer methods from Barton-Bandis criterion parameters to the Mohr-Coulomb criterion parameters were explored. Following this idea, the anti-sliding stability formula was deduced by different calculation methods. Ultimately, according to the calculation example analysis, the results show that study on the anti-sliding stability factor of rock slope by JRC-JCS model is feasible; and under the single factor influence, there is a negative correlation among anti-sliding stability factor of fissure water depth in rock slopes, slope height and plane angle. This can be respectively described by linear function and power function, and they show positive correlations among anti-sliding stability factor and JCS and JRC and φb, which can be respectively described by Logarithm and exponential equation;as to fissure water depth, the influence that casts upon equivalents of c, φ is opponent,but the relationship between them also can be fitted by linear function, and the relationships between critical fissure water depth and JCS, JRC are respectively fitted by logarithmic and exponential.
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备注/Memo
收稿日期:2015-06-01;改回日期:2015-06-12。
基金项目:国家自然科学基金“隧道石膏质围岩水分传输与劣化机制研究”（41272377）
作者简介:师华鹏(1988-),男,内蒙古乌拉特前旗人,硕士研究生,研究方向为岩土体的工程稳定性及地质灾害分析与防治。E-mail:276332792@qq.com
通讯作者:余宏明(1952-),男,湖北咸宁人,教授,博士生导师,主要从事地质灾害分析与防治及岩土工程研究。E-mail:cugyhm@sina.com