码头混凝土桩无损检测数值研究  

Numerical Study of Nondestructive Test of a Wharf Concrete Pile

作　　者：季勇志[1,2] 王元战[1] 王立强[1,3] 

机构地区：[1]天津大学建筑工程学院,天津300072 [2]中交广州航道局有限公司,广州510221 [3]海军工程大学天津校区,天津300450

出　　处：《北京工业大学学报》2011年第11期1729-1732,共4页Journal of Beijing University of Technology

基　　金：国家自然科学基金资助项目(No.50779043)

摘　　要：采用在桩侧施加竖向脉冲荷载的激振方式,对码头混凝土桩的无损检测进行仿真分析,得到仿真检测信号.通过信号处理,获取反映码头混凝土桩的完整性特征的滤波信号,并根据滤波信号对混凝土桩的完整性进行判定.最后将仿真分析曲线与实测曲线进行对比,一致性较好,表明该码头混凝土桩检测方法是可靠的,对提高码头混凝土桩无损检测的准确性具有重要意义.The nondestructive test of a wharf concrete pile under a vertical impulse load next to the pile is simulated and analyzed. Then the signals that reflect integrity characteristics of the wharf concrete pile are obtained by signal processing, and the integrity of the wharf concrete pile can be judged. Finally, the simulated curves agree well with those obtained from field measurements. Consequently, the test method of the wharf concrete pile is correct and will play an important role in increasing the accuracy of nondestructive test of the wharf concrete pile.

关 键 词：码头 混凝土桩 无损检测 信号处理 

分 类 号：TU753[建筑科学—建筑技术科学]