海管路由挖沟地质条件分析与评价  

Analysis and Evaluation of Geological Conditions of Submarine Pipeline Route for Trenching Excavation

作　　者：刘双双[1] 

机构地区：[1]中海油田服务股份有限公司,天津300451

出　　处：《中国海洋平台》2017年第1期78-84,共7页China offshore Platform

摘　　要：海管路由区海底的地质条件不仅关系到海管的运营安全,还关系到海管的铺设施工作业,以实际生产项目为例,阐述在海管挖沟铺设前所进行的海底地质调查研究中土质参数的选取、土层对比、疏浚土分级与评价等关键技术问题,分析讨论在参数选取和土层对比环节中存在的一些常见问题并针对这些问题提出相应的解决方法。实践证明,这些方法有利于对海底土层工程性质的准确评价。Due to the fact that the geological conditions of submarine pipeline route are related to not only the safety of pipe operation,but also the pipe-laying process,some technical key issues in submarine geological investigation and study before trench excavation and burying for submarine pipes,including soil parameters selection,stratum comparison,and classification and evaluation of dredged soil,are expounded by the example of practical projects.Some common problems found in parameter selection and stratum comparison stages are analyzed,and corresponding methods are presented in order to solve these problems.It is demonstrated that these methods are good for accurately evaluating engineering properties of submarine soil.

关 键 词：海管路由 挖沟 地质条件 疏浚土 

分 类 号：P67[天文地球—海洋地质]