盐田港东作业区地质风险分析  

Geological risk of east operating area of Yantian Port

作　　者：赵树光 李孝杰 ZHAO Shuguang;LI Xiaojie(CCCC Third Harbor ConsultantsCo.,Ltd.,Shanghai 200032,China)

机构地区：[1]中交第三航务工程勘察设计院有限公司,上海200032

出　　处：《水运工程》2025年第3期109-115,138,共8页Port & Waterway Engineering

基　　金：国家重点研发计划项目(2023YFB2604200)。

摘　　要：针对大型填海造地项目拟建物多、工程规模大、地质条件复杂,较多的地质风险导致后续施工中易出现质量隐患的问题。以盐田港东作业区为例,对项目特点、工程地质特征、深圳地区经验进行研究和技术分析,在参照传统地质灾害危险性综合评估基础上,结合项目中存在的地质风险源,提出大型陆域形成港口的地质风险分析流程,按此流程进行风险分析,划分风险等级。结果表明:项目存在吹填淤泥插板易断带、软岩区基岩顶板判定困难、桩基参数难以确定、碎石类填土桩基施工中易塌孔等4个高风险因素,提出了风险预防措施及处理方案,将施工过程中实际出现的问题与风险分析进行反馈,并得到验证,有利于施工中规避风险,可为类似大型水运项目的设计施工提供指导意见。To large number of proposed buildings,large-scale engineering,and complex geological conditions in large-scale land reclamation projects,there are many geological risks that may lead to quality hazards during subsequent construction.Taking the east operation area of Yantian Port as an example,the project characteristics,engineering geological features,and experience of Shenzhen area are studied and technically analyzed.Based on the comprehensive assessment of traditional geological hazards and the geological risk sources existing in this project,a geological risk analysis process for ports formed on large land area is proposed.According to this process,risk analysis is carried out and the risk levels are divided.The results show that:there are four high-risk factors in the project,including the easy breakage zone of the hydraulic fill silt insertion plate,the difficulty in determining the bedrock roof in soft rock areas,the difficulty in determining pile foundation parameters,and the easy collapse of holes in the construction of gravel filled soil pile foundations.Risk prevention measures and treatment plans are proposed,and feedback analysis is conducted on the actual problems and risks analysis during the construction process,which is verified and beneficial for avoiding risks during construction,providing guidance for the design and construction of similar large-scale water transportation projects.

关 键 词：地质风险 软土 软岩 地基处理 

分 类 号：U652.2[交通运输工程—港口、海岸及近海工程]