【摘要】 海洋物探技术是海洋调查的主要方法,在港航工程勘察中得到了广泛的应用。本文通过实践应用,论述了双频测深、高精度磁法、水域浅层地震反射波法、旁侧声呐和浅地层剖面法的方法原理及应用范围,介绍了各种方法在某港口航道建设中取得的应用成果,包括探明了海底钙质结核、海底地形、地层分界线、淤泥层厚度、地层异常区域(地层突变、凹陷等)的分布情况。实践证明,海洋物探技术在港航建设的勘察中,具有效率高、效果明显的特色。为以后同类工程提供技术参考。更多还原

【Abstract】 Marine geophysical prospecting is a major technique for marine investigation and it plays an important role in incoming engineering exploration.Through the practical case and basic theories,the working principle and application scope of dual-band sounding,precision magnetic method,waters shallow seismic reflection wave method,lateral sonar,shallow stratigraphic section method are discoursed.Meanwhile,the application results of these methods to the construction of a port channel are introduced,including the distribution of calcareous concretions,seabed topography,stratigraphic boundaries,silt layer thickness,abnormal formation region(stratum mutation,depression,etc.).It has been proved that marine geophysical prospecting has high efficiency and significant effect in the application to the port and waterway construction.Therefore,this paper can provide a technical reference for similar further projects.更多还原