( 5 ) based upon numerical simulation , the effect of initial value and measure random error on back - analysis is discussed , and the first parameter and the second parameter of two - parameter model of the experimental field is identified using the experimental data ( 5 )通过数值模拟,分析了初值及测量结果随机误差对反分析结果的影响,并利用试验数据,识别出试验场地双参数地基模型的第一参数与第二参数。