摘要
目前在本地区还普遍采用低应变法检测多节PHC管桩的桩身完整性,实践表明该法检测存在一定的局限性,很难发现桩身中下部的缺陷,故无法完全反映桩的质量情况,对桩基础整体质量评价存在隐患,而高应变法较能反映整桩桩身质量情况。本文针对检测对象的环境影响因素结合实例分析,探讨我省规范中提倡用高应变法检测PHC管桩桩身完整性的原因。
Currently low-strain test is commonly used in integrity testing of PHC tubular pile. There are some limits of low-strain test, for example,it＇s difficult to find middle to low part defects,it cannot measure the quality of whole pile,and it cannot be used to evaluate the quality of pile foundation. But high-strain test is a good way to evaluate the quality of pile foundation. Combined with effect factors and real examplcs, the reasons why high-strain test is advocated to detect integrity of PHC tubular pile in provincial code are discussed.
出处
《广东土木与建筑》
2009年第7期57-59,共3页
Guangdong Architecture Civil Engineering
关键词
完整性
高应变
要素
Integrity
high-strain test
elements
