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基于运用工程边坡的实测资料反算强度参数的目的,改变了瑞典法安全系数的表达公式,使其适用于较均质的土质或类土质边坡的参数反算。通过反算粤赣高速公路一个不稳定边坡的实测资料,得到了不稳定体的强度参数,通过分析反算过程的误差传递规律,给出了计算结果的误差范围。计算结果表明,反算需要的条件不高,得到的强度参数符合工程实际,对于校核勘察结果和试验数据,修订边坡设计具有实际意义。
Based on the purpose of back calculating the strength parameters by using measured data of engineering slope, the expression of the safety factor of Swedish law is changed, which makes it suitable for the back-calculation of the parameters of more homogeneous soil or soil-like slope. By measuring the measured data of an unstable slope on the Yue-Gan Expressway, the intensity parameters of the unstable body are obtained. The error propagation range of the calculation result is given through the analysis of the law of error transfer in the back-calculation process. The calculation results show that the conditions required for the inverse calculation are not high, and the obtained strength parameters are in line with the actual project. It is of practical significance to amend the survey results and test data and to amend the slope design.