锚杆张力无损检测方法的数值模拟与试验对比  

Numerical Simulation and Test Comparation on the Non-destructive Testing Methods of Prestressed Bolt Tension

作　　者：田北平[1] 毛利胜[1] 刘文方[1] 黄伯太 

机构地区：[1]四川理工学院建筑工程学院,四川自贡643000 [2]四川升拓检测技术有限责任公司,成都610045

出　　处：《四川理工学院学报（自然科学版）》2011年第6期694-696,共3页Journal of Sichuan University of Science & Engineering(Natural Science Edition)

基　　金：四川省教育厅科研项目(07ZC036);四川理工学院科研项目(2009XJKYL003)

摘　　要：针对预应力锚杆使用过程中张力逐渐降低问题,考虑锚杆系统的卓越频率及加权频率,运用弦振理论,建立锚杆张力与自振频率相关关系模型。通过数值模拟分析的方式探求了自振频率与锚杆张力的相关性,并通过实验进行了验证。The prestressed bolt tension will gradually reduce in using process,in order to solve the above problem,the author has established the relationship model between bolt tension and calculating frequency through considering excellent frequency and power frequency of the bolt system and using the string vibration theory.The relationship between bolt tension and calculating frequency through the numerical simulation and experimental approach is proved,finally,non-destructive testing method which can calculate bolt tension according to calculating frequency is proposed.

关 键 词：无损检测 锚杆张力 计算频率 预应力锚杆 

分 类 号：TD3[矿业工程—矿井建设]