黄衢南高速公路隧道锚杆锚固质量无损检测技术及应用

黄衢南高速公路隧道工程中采用了大量的锚杆锚固围岩治理方案,利用弹性波在不同波阻抗面反射的量和相位的变化原理,采用特殊的声波发射和接收装置,对该工程的锚杆锚固质量进行了检测.结果表明,锚杆锚固质量的无损检测不仅可行、有效,而且取得了较好的经济效益和社会效益.

Non-Destructive Detection Technique of Anchorage Quality of AnchorBars and Its Appl ication to Huang-Qu-Nan Expressway

The Different treatment plan s of anchor bar anchorage are adopted in wall rock of tunnel engineering engineering of Huang-Qu-Nan Expressway.The special acoustic wave emission and receipt apparatus can be adopted to detect the anchorage quality of anchor bars by mean s of variation principle of the reflected energy and phase of audio-frequency stress wave on the different wave impedance surface.Through the application of the detect ion technique to Huang-Qu-Nan Expressway,it show s that the non-destructive detect ion of anchorage quality of anchor bars is no t only practicable and effective but also obtained better economic and social benefit for the construction of Huang-Qu-Nan Expressway.