声波层析成像在特大涌水地质区域探测中的应用

THE APPLICATION OF SOUND WAVE COMPUTERIZED TOMOGRAPHY TO THE GEOLOGICAL REGIONAL DETECTION IN AN EXTRA LARGE WATER GUSHING CHANNEL

介绍了声波层析成像(声波CT)的基本原理、数据采集与处理方法,并结合工程实例对声波CT在某水电站涌水通道探测的应用效果作了较为深入的探讨。实践表明,声波CT能够有效弥补单孔声波检测工作的局限性,成果图像形象地描述了地下水的涌水通道位置及规模,可较好地探测该类地质问题,为后续施工设计提供科学依据。

This authors introduce the basic principle,data acquisition and processing method of sound wave computerized tomography（sound wave CT）,and then makes a detailed discussion on the applied effect of sound wave CT in geological regional detection of an extra large water gushing channel in a certain hydropower station diversion tunnel.Practice shows that sound wave CT can effectively remedy the limitation of single-hole sound wave test,and the result images of sound wave CT describe vividly the position and scale of the gushing channel of ground water.Thus,sound wave CT can successfully detect similar geological problems and provide scientific basis for the follow-up construction design.