The back analysis program is used to calculate rock parameters of an engineering example . the result is good and correct . the error of displacement based on the parameter gained by the back analysis program is little 将编制的反分析程序应用于某工程计算实例的岩体参数反分析,经检验,得到的结果参数理想,准确度较高,用于位移计算误差较小。