静动法试桩技术对比  

Comparison of STATNAMIC pile testing technology

作　　者：时闽生[1] 郭灵华 史炳峰 

机构地区：[1]中交天津港湾工程研究院有限公司,天津300222 [2]中交一航局第一工程有限公司,天津300461 [3]中国港湾工程有限责任公司,北京100027

出　　处：《水运工程》2014年第10期169-173,共5页Port & Waterway Engineering

摘　　要：用对比分析的方法研究静动法桩基试验新技术的各种特性,分类描述静动法的试验原理和常用分析手段。依据境外水工试桩的试验数据,对比高应变(CASE法)与静动法试验的过程特征,验证静动法的可靠性;对比静动法(卸载点法)与高应变(CAPWAP法)的试桩试验结果,分析静动法的准确性及限制条件。引入传递能量的概念作为判别静动法试验效果的参考因素,分析多种桩型静动法试验的应力波传递效应及其影响程度。讨论静动法试桩技术引入国内水工桩基试验领域的适用性、限制因素和经济指标。为国内开展类似试验技术提供实践层面的参考。The characteristics of new STATNAMIC load test are studied by comparison, and the theory and usual analysis methods of STATNAMIC are described. Based on the test data of trial piling abroad, we carry out a comparison of the process natural of STATNAMIC and the dynamic load test （ CASE method） to identify the reliability of STATNAMIC. To analyze the accuracy and limited conditions on STATNAMIC, we compare the results of STATNAMIC （ unloading point method） and the dynamic load test （ CAPWAP method）. Introducing the transfer energy measurement as a parameter, we evaluate the efficiency of STATNAMIC. The impact of strain wave phenomenon on different types of piles during STATNAMIC test is studied. STATNAMIC＇s applicability and economy in marine testing field in China are discussed to offer a reference for similar technology used in China in the future.

关 键 词：静动法 高应变法 卸载点法 桩基检测 

分 类 号：TU317[建筑科学—结构工程]