用曲线拟合的方法预测软土地基沉降_潘林有.pdf

25 7 Vol.25 No.7 2004 7 Rock and Soil Mechanics Jul. 2004 2004) 12 3 1. 430070 2. 325027 3. 310027 TU 470 A Observational settlement prediction by curve fitting methods 12 3 PAN Lin-you , XIE Xin-yu 1.School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430063, China ; 2. College of Architectural and Civil Engineering, Wenzhou University, Wenzhou 325027, China; 3. Institute of Geotechnical EngineeringZhejiang University, Hangzhou 310027, China Abstract: The theoretical foundations of observational settlement prediction by methods of curve fitting are discussed. The fundamentals and the characteristics of the four methods (exponential, hyperbolic, Asaoka and logistic curves methods) are compared. Based on the observational settlement data of eight practical projects, the advantages and shortcomings of these methods are studied. Finally, several key problems for observational settlement prediction are put forward. Key words: observed settlement; soft foundation; curve fitting; hyperbolic method; exponential method 1