摘要
采用ABAQUS有限元软件建立了旁孔透射波法检测既有建筑桩基长度的数值模型,在验证模型和理性的基础上,系统研究了上部荷载、敲击位置、敲击角度等因素对旁孔透射波法检测响既有桩基长度的影响。结果表明:当桩基处于线弹性工作阶段,上部荷载大小和敲击位置不同对旁孔透射波法确定桩长的检测结果影响很小,敲击角度在30°~150°范围,特别是接近90°竖向敲击,检测效果最佳。
By using the ABAQUS finite element software,a numerical model for detecting the pile foundation length of existing buildings with the parallel seismic testing was established.With the model and its rationality verified,the influence of such factors as the upper load,striking position and striking angle on the detection were systematically studied.The results show that when the pile foundation is in its linear elastic working state,the upper load and the striking position have little effect on the detection results of pile foundation length with the parallel seismic testing;and when the striking angle is in the range of 30°~150°,especially in the case of vertical striking close to 90°,the optimal detection performance is obtained.
作者
梁耀哲
王俊波
王新宇
石婷
马琳
Liang Yao-zhe;Wang Jun-bo;Shi Ting;Wang Xin-yu;Ma Lin(Hebei Academy of Building Research Co.,Ltd.,Shijiazhuang 050021,China;Hebei Institute of Building Architectural Design Limited Company,Shijiazhuang 050000,China;School of Civil Engineering,Henan Polytechnic University,Jiaozuo 454000,China)
出处
《建筑科学》
CSCD
北大核心
2020年第S01期253-260,共8页
Building Science
关键词
旁孔透射波法
既有桩基长度
上部荷载
敲击角度
敲击位置
parallel seismic test
length of existing pile
upper load
striking position
striking angle
作者简介
王俊波,[联系方式]E-mail:wjb@hpu.edu.cn
