地震映像法是目前水上勘探常用的方法,在内陆淡水与浅海地区有广泛的应用。通过对拟建中的沌口长江公路大桥桥址进行江上地震映像勘探,详细论述了水上地震映像的勘探方法。本次勘察查出断层一处,并初步查明了相关地质条件。钻探验证结果与物探资料基本一致,为拟建沌口长江公路大桥提供了勘察依据。 Seismic mapping method is currently used in water exploration methods, inland freshwater and shallow sea areas have a wide range of applications. Through the exploration of the seismic images of the river on the bridge site of the Zhuankou Changjiang River Road Bridge under construction, the exploration method of waterborne seismic images is discussed in detail. The survey found a fault, and initially identified the relevant geological conditions. The result of drilling verification is basically the same as that of geophysical data, which provides the basis for reconstructing the Dachang Changjiang River Highway Bridge.