摘要
利用1986～1992年珠江口盆地灾害地质与工程地质调查、2000～2001年亚太光缆网络系统路由调查等获得的资料,对海底浅层气的分布与赋存特征作了分析研究,认为海底浅层气主要分布于河口与陆架地区,以层状、团(块)状、高压气囊及气底辟等4种形态赋存于海底,在侧扫声纳、浅地层剖面等图像中有4种主要识别标志。海底浅层气常常会给基础工程施工带来严重影响,因此,对其给工程带来的影响及危害应予以足够的重视。
Based on the survey data of the South China Sea from the projects of UNDP CPR/85/044 and route survey for Asia\|Pacific Cable Net system, the distributions and existing characteristics of the shallow gas are analyzed in this paper. The Submarine shallow gas is widely distributed in the river mouth and continent shelf areas. There are four existing in forms of gas blocks, high pressure gas packets, gas diapir or layer\|like imagines. The four main recognition marks can be founded in the records of the side scan sonar and sub\|bottom profiling.It has to pay attention for the danger to engineering due to its serious influences to foundation engineering caused by the shallow gas.
出处
《东海海洋》
2003年第1期27-36,共10页
Donghai Marine Science
基金
联合国开发计划署援华项目(UNDP CPR/85/044)
亚太光缆网络系统路由调查项目
关键词
海底浅层气
成因
赋存特征
工程危害
submarine shallow gas
cause of formation
existing characteristics
danger to engineering
