简述某重力式码头升级改造技术  

Brief Introduction to Techniques for Upgrading and Reconstruction of a Gravity Berth Structure

作　　者：孔令学 Kong Lingxue(Dalian Port Design&Research Institute Co.,Ltd.,Dalian Liaoning 116023,China)

机构地区：[1]大连港口设计研究院有限公司

出　　处：《港工技术》2019年第5期45-47,共3页Port Engineering Technology

摘　　要：以某重力式码头升级改造为例,介绍大管桩、旋喷桩技术在重力式码头改造中设计及应用情况。重力式码头前沿可采用打入桩进行升级改造,大管桩在采用组合桩、桩顶采用纤维混凝土等措施情况下可以打入较薄的块石基床;对码头前沿地基采用旋喷桩加固,应用强度折减法采用PLAXIS/3D软件对码头整体稳定进行了计算,计算结果及现场使用情况表明,旋喷桩加固可以保证码头整体稳定性要求。The design and application of jet grouting piles in the reconstruction of gravity berth structures are expounded on the basis of upgrading and reconstruction of a gravity berth structure.Gravity wharf apron can be driven with piles,large diameter pipe piles can be driven into thinner rock-based bed subject to the combination of composite piles and fiber concrete on top of piles.Jet-grouting piles are used for reinforcing the wharf apron foundations.The strength reduction method based on PLAXIS/3D is used to calculate the overall stability of the berth structure.The calculation result and field situation prove that the jet grouting pile reinforcement method ensures the overall stability of the berth structure.

关 键 词：重力式码头 升级改造 旋喷桩 大管桩 强度折减法 

分 类 号：U656.111[交通运输工程—港口、海岸及近海工程]