超声导波技术在螺纹钢锚杆检测中的应用研究  

Inspection on Bolt with Thread Using Ultrasonic Guided Wave Technique

作　　者：孙雅欣[1] 何存富[1] 吴斌[1] 王秀彦[1] 刘增华[1] 

机构地区：[1]北京工业大学机械工程与应用电子技术学院,北京100022

出　　处：《工程勘察》2008年第4期68-71,共4页Geotechnical Investigation & Surveying

基　　金：国家自然科学基金资助项目(10602004);北京市教委资助项目(KZ200510005004).

摘　　要：本文分析了高频纵向超声导波在埋置于水泥中的螺纹钢锚杆中的传播特性,提出了有效计算直径的概念,指出在频散曲线计算中,对于螺纹钢锚杆应按照有效计算直径进行计算。并且在实验室及现场检测中验证了这一观点,为螺纹钢锚杆导波检测的工程应用打下一定基础,可供类似工程借鉴。The propagation characteristics of high frequency longitudinal ultrasonic guided waves of bolt with thread which is embedded in grout are studied in the paper. The available computing diameter is introduced in the computing about the disperse curves of bolt with thread. The results of laboratry and field inspection indicate that the disperse curves of bolt with thread should adopt the available computing diameter, which lay the foundation for the inspection of bolt with thread using ultrasonic guided waves.

关 键 词：锚杆 超声导波 无损检测 

分 类 号：TP206.4[自动化与计算机技术—检测技术与自动化装置]