桩周(端)土及桩休止期对基桩低应变检测研究  

RESEARCH ON LOW STRAIN TESTING OF PILE FOUNDATION BY SURROUNDING(END)SOIL AND PILE REST PERIOD

作　　者：高绍海 Gao Shao-hai

机构地区：[1]中铁第五勘察设计院集团有限公司北京铁城检测认证有限公司,北京100076

出　　处：《建筑技术开发》2024年第9期161-164,共4页Building Technology Development

摘　　要：在低应变反射波法基桩完整性检测过程中,桩周(端)土及桩休止期会对基桩低应变完整性测试信号产生影响,严重的甚至会造成检测结果误判。采用综合试验研究的方法对基桩在不同休止期,对桩周(端)土地质情况不同的基桩进行了低应变检测。以期为类似工程提供参考。In the process of low strain reflection wave method for pile integrity testing,the soil around the pile(end)and the rest period of the pile will have an impact on the low strain integrity testing signal of the pile,and in severe cases,it may even cause misjudgment of the testing results.A comprehensive experimental research method was adopted to conduct low strain testing on foundation piles with different soil quality conditions around(at)the pile at different rest periods.In order to provide reference for similar projects.

关 键 词：桩周(端)土 低应变 波阻抗 基桩完整性 休止期 衰减 

分 类 号：TU74[建筑科学—建筑技术科学]