多缺陷桩的瞬态响应及波形识别  

Transient Response of Multi-defective Pile and Wave Identify

作　　者：余莉芬[1] 余云燕[1] 

机构地区：[1]兰州交通大学土木工程学院,甘肃兰州730070

出　　处：《兰州交通大学学报》2007年第4期40-43,48,共5页Journal of Lanzhou Jiaotong University

基　　金：甘肃省自然科学基金资助(3ZS061-A-042);甘肃省建设厅资助项目;兰州交通大学"青蓝"人才工程基金资助项目(QL0507A)

摘　　要：基于回传射线矩阵法,研究两缺陷桩在半正弦脉冲激振力作用下桩顶的速度波,基桩的缺陷用横截面积的变化来模拟.比较缺陷桩与完整桩的桩顶速度波,分析缺陷程度对缺陷桩桩顶速度波的影响,得出一些有意义的结论.Based on the method of reverberation matrix, the velocity wave of two-defective pile head under semi-sine impulse exciting is discussed in the paper. The defects of pile are simplified by changing the cross -section areas of defective elements. The velocity wave of defective pile head and intact pile head are compared. The velocity wave of defective pile head is analyzed, which is effected by defect extent. Many significant conclusions are obtained.

关 键 词：回传射线矩阵法 桩 缺陷 速度波 

分 类 号：TU473.1[建筑科学—结构工程]