基于单桩工况下旁孔透射波的传播路径研究及应用  

Research and Application of Propagation Path of Side Hole Transmitted Waves Based on Single Pile Working Condition

作　　者：聂田 姚文胜 梁永侦 郭容宽[1] 李晓东[1] NIE Tian;YAO Wen-sheng;LIANG Yong-zhen;GUO Rong-kuan;LI Xiao-dong(Guangxi Mechanical and Electrical Vocational and Technical College,Nanning 530007,China;MCC Southern Wuhan Engineering Consulting Management Co.,Ltd.,Wuhan 430061,China)

机构地区：[1]广西机电职业技术学院,南宁530007 [2]中冶南方武汉工程咨询管理有限公司,武汉430061

出　　处：《价值工程》2024年第15期108-111,共4页Value Engineering

基　　金：广西高校中青年教师科研基础能力提升项目资助经费项目“旁孔透射波法影响因素及测试技术研究”(项目编号:2021KY1078);广西机电职业技术学院院级科研项目“基于应力波在基桩检测中的传播特性研究”(编号:2021YKYZ006)。

摘　　要：旁孔透射波法是基于低应变反射波法和超声波透射法衍生出的一种基桩检测新技术。通过Ansys数值模拟软件建立轴对称模型,利用ANSYS/LS-DYNA计算得到桩—土系统纵轴截面的速度波场快照图,揭示了透射波在桩—土系统中的传播路径及旁孔不同深度处测点的时程曲线特征,直观的显示桩身的缺陷,利于提高测试结果的准确性和可靠性。The side hole transmission wave method is a new technology for pile detection derived from the low strain reflection wave method and the ultrasonic transmission method.By using Ansys numerical simulation software to establish an axisymmetric model and using ANSYS/LS-DYNA to calculate the velocity wave field snapshot of the longitudinal section of the pile soil system,the propagation path of transmitted waves in the pile soil system and the time history curve characteristics of measurement points at different depths of side holes are revealed,intuitively displaying the defects of the pile body and improving the accuracy and reliability of test results.

关 键 词：单桩 旁孔透射波 传播路径 工程应用 

分 类 号：TU473.1[建筑科学—结构工程]