利用能量法的边坡强度参数反演研究

强度参数反演是获取岩土工程参数的重要手段之一。传统的位移反分析方法需要对岩土体进行位移监测,耗费较多的时间和资金。本文在极限分析上限定理的基础上进行安全系数的求解。并分析边坡的几何及参数连续性,将边坡破坏断面两侧的断面的安全系数视为1。通过做出不同断面的c—φ曲线,其曲线的交点即为反演所得的参数值。结果表明,其结果与试验值符合较好,效果较好。

Soil slope strength parameter back analysis based on energy method

The back analysis is an important means for obtaining the strength parameters of the geotechnical mass.The tradition method,known as the displacement back analysis,need the data of the displacement monitoring,which spent much time and funds.In this paper,the safety factor is solved by the upper bound theorem the safety factor of the slope section near the failure section is considered as 1.The inversion parameter is obtained by the c-φ curve of different sections.The result shows the inversion data coincides well with the test data.