摘要
引进一种新的沉降预测方法——龚帕斯曲线法,并同Duncan-Chang非线性有限元反析法及灰色系统理论并引入遗传算法放在同一工程实例中进行各种沉降预测的比较和分析,发现龚帕斯曲线法的沉降预测值最接近于实测值,其预测曲线与实测曲线吻合最好,且其误差也是最小的,绝大部分在1%以内。从而得出龚帕斯模型有更好的适应性,预测结果的离散性小及准确性高等优点,这对高填方路基的工后沉降预测提供了更可靠的方法,可推广应用于实践。
This paper introduces primarily a new kind of settlement prediction method--Compertz Curve Method, and compares it with Duncan-Chang FEM and genetic algorithm of grey prediction method in the same engineering, the result shows that prediction settlement values of Compertz Curve Method approach real numbers further, and the error,less than 1% , is the least （the maximum error of FEM 7.44% and grey prediction method 4% ）. Compertz Curve Method has many merits, such as a good adaptability, a small dispersing of prediction result and a high precision and so on. This is a more reliable method to predict settlement after construction on high embackment, therefore, we should expand the application of this method in the engineering practice.
出处
《公路工程》
2008年第1期127-129,134,共4页
Highway Engineering
关键词
沉降预测
龚帕斯曲线法
有限元反析法
遗传算法
prediction method for settlement
Compertz Curve Method
FEM
genetic algorithm
