特殊条件下的物探检测及其应用效果

Geophysics exploration and application in special condition

长江三峡工程永久船闸高边坡卸荷影响带和清江水布垭导流洞洞壁松动圈对物探检测来说是两个极具代表性的工程问题，而地震波 CT 和声波测试又分别代表着最前沿和最常规的物探检测方法．本文应用地震 CT 和声波测试方法对上述两个问题进行了探测研究．探测结果表明，在解决某些特殊条件下的地质问题时，根据现场实际情况选定合适的地球物理方法可以取得事半功倍的效果．

The unloading disturbed area of in the rock mass of permanent ship passage in Three Gorges of the YangtzeRiver and the relaxed bound around the headrace tunnel of Shuibuya Dam on the Qingjiang River are two typical engi-neering problems to geophysical exploration.The seismic CT and ultrasonic detecting are two kinds of useful geophys-ical exploration methods.These two methods are applied to the exploration of the two typical problems mentioned a-bove.The results show that under certain conditions,suitable choice of geophysical exploration methods will result ina very good effect.