陆地声纳法及其应用效果

LAND SONAR METHOD AND EFFECTIVENESS

本文介绍了陆上极小偏移距高频 (宽频 )弹性波反射连续剖面法 (简称陆地声纳法 )的基本原理及实现的方法 ,并介绍了它在浅层高分辨率探查方面、探查岩溶及其它洞穴方面、在隧道掌子面上做前方不良地质预报探测方面、在探查极薄层方面的成功实例。此方法具有分辨率高、可避开许多干扰波、反射波能量高、探查岩溶和洞穴有好效果。

This paper elucidates the basic principle of the high-frequency (broad-band) elastic wave reflection continuous profiling of land minimum offset distance (called land soar method for short) as well as the technique for its realization, and gives examples of its successful application in such aspects as the shallow-layer high resolution exploration, the detection of karst and other caves, the detection and prediction of unfavorble conditions ahead along the heading face of the tunnel, and the detection of extremely thin layers. This method has many merits such as high resolution ratio, the capacity of avoiding lots of disturbing waves, high energy of reflection waves, effective detection of karst and caves, and simple and easily recognizable images.