深厚软基上澳门机场护岸设计技术

在深厚软土地基的回填工程中新建护岸,结构变形控制、地基承载力和施工工艺选择往往是关键。以澳门国际机场扩建工程为实例,针对深厚软土地质和复杂环境条件及限时、限高等机场特殊施工条件,开展护岸结构选型、结构计算、施工工艺选择等关键技术研究,提出前板桩后桩基的高桩承台等结构方案,能较好地解决深厚软土、环境复杂、施工条件受限等情况下的护岸变形控制、地基承载力和施工难题,可为类似工程提供借鉴。

Design technology of revetments on deep soft soil foundation in Macao International Airport

The selection of structural deformation control,foundation bearing capacity,construction process and other factors is often the key to newly-built revetments in backfill engineering of deep soft soil foundation.Taking the expansion project of Macao International Airport as an example, in view of airport ’s special construction conditions,such as deep soft soil,complex environmental conditions,and time limit and height restriction,we carry out this research on the core technologies about revetment structure selection,structural calculation and construction process selection.Then we propose several structural schemes,for example,high-rise pile caps with front sheet pile and offside pile foundation, which can solve the problems of revetment deformation control, foundation bearing capacity and construction difficulties in the situations like deep soft soil, complex environment or complicated construction conditions.The paper can provide reference for similar projects.