港珠澳大桥岛隧工程大圆筒结构边坡稳定分析  

Slope stability analysis of steel cylinder structure for Hongkong-Zhuhai-Macao Bridge island and tunnel project

作　　者：张丽珍[1] 刘海欣[1] 

机构地区：[1]中交第四航务工程勘察设计院有限公司,广东广州510230

出　　处：《中国港湾建设》2015年第6期9-13,共5页China Harbour Engineering

摘　　要：港珠澳大桥岛隧工程人工岛工程采用带副格的插入式大圆筒作为岸壁围护结构,同时外侧辅以抛石斜坡堤进行防护。针对岸壁结构整体稳定,进行了从施工期到使用期的全寿命分析。对于施工期,结合施工工序确定对结构稳定最不利的四种工况;对于使用期,考虑了大圆筒腐蚀对结构稳定的影响,并分别采用港口工程地基计算系统和Geo Studio-Slope/W两种软件进行对比计算。经稳定性验算,岸壁结构的圆弧滑动稳定性符合相关规范要求且有较大富余,满足了使用要求,同时也为类似工程提供借鉴。The combination structure of the inserted steel cylinder assisted with vice grid and the riprap slope embankment out- side is used as sea defense structure for the Hongkong-Zhuhai-Macao Bridge island and tunnel project. With regard to the over- all stability of the quay wall structure, we carried out the life cycle analysis from construction period to use period. For the con- struction period, the four worst conditions on the structure stability is analyzed combined with the construction process; for the use period, considering the effect of steel cylinder corrosion on the structural stability, the two software, Calculation System of Port Engineering Foundation and GeoStudio-Slope/W, are selected to analysis. After stability calculation, the slope stability of the quay wall structure can meet the requirements of relevant codes and surplus, satisfying the use requirements and providing references for similar engineering.

关 键 词：港珠澳大桥岛隧工程 大圆筒 边坡稳定 港口工程地基计算系统 Geo Studio-Slope/W 

分 类 号：U655.541[交通运输工程—港口、海岸及近海工程] TU433[交通运输工程—船舶与海洋工程]