获得土体回弹模量的方法研究  

Research on Methods of Obtaining Soil Rebound Modulus

作　　者：韩勇[1] 李圃林[2] 李军[2] 冯士伦[2,3] 

机构地区：[1]中国市政工程华北设计研究总院,300074 [2]天津市勘察院,天津300191 [3]天津大学建筑工程学院,天津300072

出　　处：《绿色科技》2012年第1期184-186,共3页Journal of Green Science and Technology

基　　金：住房和城乡建设部软科学研究项目(编号:2011-K3-32)资助

摘　　要：指出了回弹模量做为一种表征土体缷荷回弹性质的参数,室内土工试验可以获得,但试验周期较长,成本较高,因而只有在重要工程中才要求试验测试,一般工程只要求测试土体的压缩模量。通过搜集45套回弹模量与压缩模量的试验数据,在统计分析的基础上进行了回弹模量取值研究,成功的建立了回弹模量经验模型,模型计算值与试验测试值吻合程度很好,为获得回弹模量提供了一种新途径。The soil rebound modulus shows the characterization of soil unloading rebounding and can be obtained by laboratory soil tests. However, the test cycle is long and the cost is higher, thus the soil rebound modulus could only be required in some important projects and the soil compression modulus could be required in general projects. Based on 45 sets of rebound modulus and compression modulus test data, the test method of rebound modulus is researched. The modulus of rebound experience model is proposed, and the model calculation value is very close to the test value. Therefore,a new way of obtaining the soil modulus of rebound is provided.

关 键 词：回弹模量 压缩模量 基坑 

分 类 号：TU416[建筑科学—岩土工程]