自升式平台在海底隧道勘察中的应用研究  

Application Research of Jack-up Platform in Subsea Tunnel Survey

作　　者：罗承浩 LUO Chenghao(Geotechnical and Environmental Enterprise Engineering Technology Research Center of Fujian province,Longyan 364000;Fujian Yongqiang Geotechnical CO.,Ltd,Longyan 364000)

机构地区：[1]福建省岩土与环境企业工程技术研究中心,福建龙岩364000 [2]福建永强岩土股份有限公司,福建龙岩364000

出　　处：《福建建筑》2023年第2期62-66,共5页Fujian Architecture & Construction

基　　金：福建省科技计划项目(2020I1011)、福建省科技计划项目(2021H4024)、龙岩市奇迈科技创新基金项目(2020LYF10003)。

摘　　要：地质勘察是海底隧道等所有海洋工程建设的必要前提基础,勘察成果的质量与精度,对整个工程的设计、施工、运营及投资成本具有重要的影响。结合海底隧道勘察工程实例,分析工程难点及解决措施,分析自升式平台特点及在海上钻探、取芯及原位水文地质试验等综合勘察中的应用情况,相比船载式平台易受海水晃动缺陷,突出自升式平台在高质量勘察中的应用优势,可提供等效于陆地的稳固作业条件,确保勘察精准度。通过ANSYS和PATRAN有限元软件,对平台进行数值分析,校核强度,验证了平台的安全适用性,为类似海洋工程的勘察施工提供有益的参考与借鉴。Geological survey is a necessary prerequisite for the construction of subsea tunnels and other offshore projects.The quality and accuracy of survey results have an important impact on the design,construction,operation and investment cost of the whole project.In this paper,the engineering difficulties and solutions are analyzed based on the examples of subsea tunnel survey,the characteristics of jack-up platform and its application in offshore drilling,coring and in-situ hydrogeological test are introduced,Compared with the shipborne platform,which is vulnerable to the shaking defects of sea water,the jack up platform highlights its application advantages in high quality survey,which can provide stable operation conditions equivalent to land and ensure the survey accuracy.and the strength of the platform is verified by numerical analysis with ANSYS and PATRAN finite element software,which the security and applicability of the platform is verified,It can provide useful reference for the survey and construction of other similar offshore projects.

关 键 词：自升式平台 海底隧道 高质量勘察 数值分析 

分 类 号：TU4[建筑科学—土工工程]