窄岸坡高桩码头新型结构方案的设计与实践  

Design and Practice for New Marine Structures of Piled Wharf with Narrow Bank Slope

作　　者：王洪刚[1] 魏丽丽[1] 孙建军[1] 

机构地区：[1]中交第一航务工程勘察设计院有限公司,天津300222

出　　处：《港工技术》2012年第6期25-27,共3页Port Engineering Technology

摘　　要：天津港南疆港区南侧液体化工码头的前沿线与陆域吹填围埝相距较近,建设单位要求在高桩码头建设中必须保证现有陆域围埝的稳定。如果采用常规大开挖岸坡势必危及现有陆域围埝,而传统窄岸坡处理中采用的后板桩法或CDM法造价高且工期长。我们在总结天津港地区高桩码头建设经验的基础上,提出水下真空预压法加固岸坡和后方简支板桥等新型结构方案,以较低的工程投资确保了陆域围埝的安全稳定,满足了业主对陆域利用最大化的要求。The cofferdam of reclamation area is close to the front line of the liquefied chemical wharf in the south of Nanjiang Harbor of Tianjin Port. It is also emphasized by the construction company that the construction of the piled wharf must assure the stabilization of the existing cofferdam. To adopt conventional large slope will certainly impact the existing cofferdam, but the back-sheet-pile method or CDM method will cause higher cost and longer construction period if the narrow hank slope is adopted. By summarizing the construction experiences for the piled wharfs of Tianjin Port, new marine structures are presented, which are the bank slope reinforcement by underwater vacuum preloading and the bridge simply supported with slabs etc. The new marine structures are of the advantage of low cost, which guarantee the safety and stabilization of the cofferdam and satisfy the Client＇s requirement for optimizing land area utilization.

关 键 词：天津港南疆港区 高桩码头 窄岸坡 大开挖 水下真空预压 

分 类 号：U656.113[交通运输工程—港口、海岸及近海工程] U655.544.4[交通运输工程—船舶与海洋工程]