应力波法无损检测煤矿锚索锚固质量的研究

Research of Nondestructive Test with Stress Wave on Anchor Cable Quality in Coal Mine

研究了锚索的单向拉伸力学特性与锚杆的异同,建立了预应力锚索的纵向振动力学模型,分析了应力波在锚索内的传播规律。并在王庄矿进行了锚索锚固质量的现场检测,现场试验表明,应力波法检测锚索的锚固质量是可行的,具有推广应用价值。

After studying the mechanical properties of anchor cable under unidirectional tensile and the difference of anchor bar,a dynamic model for the vertical vibration of prestressed anchor cable has been established.Stress wave propagation is also analyzed.The on-site test of anchor cable quality in Wangzhuang mine shows that the test on anchor cable quality with stress wave is feasible and has high value in popularization and application.