Study on pile drivability with one dimensional wave propagation theory

作     者：陈仁朋 王仕方 陈云敏 

作者机构：Wenling Construction Bureau Wenling 317500 Zhejiang Province Hangzhou 310027 Geotechnical Engineering Institute Dept.of Civil Engineering China Geotechnical Engineering Institute Zhejiang University 

出 版 物：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 (浙江大学学报A辑(应用物理与工程)(英文版))

年 卷 期：2003年第4卷第6期

页      面：62-72页

核心收录：

学科分类：081401[工学-岩土工程] 08[工学] 0814[工学-土木工程] 

基　　金：Project (No .5 0 2 780 87)supportedbytheNationalNaturalScienceFoundationofChina 

主　　题：Pile Drivability Stress wave theory 

摘      要：Pile drivability is a key problem during the stage of design and construction installation of pile foundations. The solution to the one dimensional wave equation was used to determine the impact force at the top of a concrete pile for a given ram mass, cushion stiffness, and pile impedance. The kinematic equation of pile toe was established and solved based on wave equation theory. The movements of the pile top and pile toe were presented, which clearly showed the dynamic displacement, including rebound and penetration of pile top and toe. A parametric study was made with a full range of practical values of ram weight, cushion stiffness, dropheight, and pile impedance. Suggestions for optimizing the parameters were also presented. Comparisons between the results obtained by the present solution and in situ measurements indicated the reliability and validity of the method.