埋置框架质量检测的探讨  

DISCUSSION ON QUALITY TESTING OF FRAME STRUCTURE EMBEDDED PARTIALLY IN SOIL

作　　者：余云燕[1] 鲍亦兴[2] 陈云敏[2] 

机构地区：[1]兰州交通大学土木工程学院,兰州730070 [2]浙江大学建筑工程学院岩土所,杭州310027

出　　处：《力学学报》2006年第3期339-346,共8页Chinese Journal of Theoretical and Applied Mechanics

基　　金：兰州交通大学"青蓝"人才工程基金(QL0507A)国家自然科学基金(10472103)资助项目.

摘　　要：提出了埋置框架的回传射线矩阵法,研究了方波脉冲轴向作用、水平作用和斜向作用下有缺陷埋置框架和无缺陷埋置框架的速度波．结果表明:横向速度波不能识别埋置框架的基桩缺陷,轴向速度波可以识别,而且基桩缺陷信号很强烈;脉冲水平作用不能识别基桩缺陷,轴向或斜向作用可以识别．There are no ready-made methods to calculate the transient response of pile foundations under a large number of structures in actual engineering, such as a frame structure embedded partially in soil under impact. The transient response of the frame structure embedded partially in soil may provide a theoretical basis for designing the marine platform, oil-line trestle and open type wharf under impact. The method of reverberation-ray matrix for frame structures embedded partially in soil is presented in this paper. The velocity wave of the perfect and defective frame structure embedded partially in soil is studied with square impulses in axial, horizontal or oblique directions. It is found that the defects of pile foundations of the frame structure embedded partially in soil can be identified via axial velocity under axial or oblique impulse.

关 键 词：回传射线矩阵法 埋置框架 瞬态波动 检测 弹性波 

分 类 号：TU323.5[建筑科学—结构工程]