基桩自平衡法桩身内力测试成果分析  

Analysis of the Results of Pile Body Internal Force Test Using the Pile Self-Balancing Method

作　　者：陈战江 贾克俭 宋中凯 朱磊 CHEN Zhanjiang;JIA Kejian;SONG Zhongkai;ZHU Lei(ConstructionEngineering Co.,Ltd.;Shandong Jianyan Testing and Inspection Technology Co.,Ltd.,Jinan,Shandong Province,250000 China)

机构地区：[1]山东省建筑工程质量检验检测中心有限公司 [2]山东建研检测检验科技有限公司,山东济南250000

出　　处：《大众科学》2024年第22期96-98,共3页China Public Science

摘　　要：通过某工程试桩自平衡静载试验检测中桩身内力测试结果,得出中风化粉砂岩桩侧阻力标准值取800~1000 kPa,岩石裂隙发育取小值,反正取大值。内力测试前,采用声波透射法对桩身完整性进行了检测;对基桩桩顶与桩底位移、基准梁位移也进行了观测,保证了试验的可靠性,试验结果可供同类工程参考使用。In this paper,based on the test results of pile internal force in self-balanced static load test of a project,it is concluded that the standard value of lateral resistance of moderately weathered siltstone pile is 800~1000 kPa,and the development of rock cracks is small,but the value is large.Before the internal force test,the integrity of the pile body was tested using the cross-hole sonic logging;The displacement of the pile top and bottom,as well as the displacement of the reference beam,were also observed to ensure the reliability of the test.The test results can be used as a reference for similar projects.

关 键 词：桩自平衡静载试验 桩身内力测试 声波透射法 中风化岩桩侧阻力值 

分 类 号：TU473[建筑科学—结构工程]