( 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 )通過數值模擬,分析了初值及測量結果隨機誤差對反分析結果的影響,并利用試驗數據,識別出試驗場地雙參數地基模型的第一參數與第二參數。