中文摘要：

根据杭州湾近年来工程地质勘察和地球物理探测所获得的资料,将杭州湾常见的地质灾害分为活动性地质灾害和限制性地质灾害。对杭州湾常见的地质灾害因素作了比较深入的分析,特别是潮流冲刷槽、古河道、软土、滑坡、砂土液化、浅层气等与海洋工程密切相关的地质灾害类型及其分布特征、形成机制及危害性等,为本区海洋工程建设和海洋开发提供基础资料。

英文摘要：

The data of engineering geological and geophysical survey indicate that the geo-hazards in the Hangzhou Bay can be divided into two categories,namely active and restrictive geo-hazards.In the paper,we studied the types,distribution pattern and formation mechanism of the hazards and their risk to marine engineering programs,with focus on tidal channels,ancient river channels,soft soil,seabed landslide,sand liquefaction and shallow gas in order to provide useful basic information for offshore development and construction in this area.