摘要
本文简要介绍了动力测定地基承载力的基本方法，同时指出，这一方法的可靠性主要取决于其中参数特别是土的动静模量比的正确选择。文章分析了土的动静模量比是由土的残余变形和弹性变形性质所决定的，并在室内试验资料的基础上，分别对砂、石类土和粘性土，提出了按土的类别和状态决定其动静模量比的曲线图。根据土的动静模量曲线图，作者改进了根据动测法计算上变形模量和承载力的计算公式，并得到了工程实例的验证。
The basic method for determining foundation bearing capacity is briefly introduced in this paper.The reliability of the method is dependent on the correct choice of ratio Ed/ E0. It is also analysed that Ed/ E0 is defined by the residual and elastic deformation of soil. Based on the laboratory test data the charts of Ed/ E0 are presented according to the soil types and their conditions. Based on the Ed/E0 charts author has revised the formula for calculating the modulus of deformation and bearing capacity of foundation which has been supported by engineering practice.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
1996年第1期15-19,共5页
Chinese Journal of Geotechnical Engineering
关键词
地基承载力
动力
动静模量比
残余变形
ratio of dynamic and static modulus, dynamic rigidity,residual deformation.
