摘要
为保障不停航施工情况下,机场飞行区强夯加固地基能够顺利进行,依托南苏丹朱巴国际机场改造工程,通过观测不同强夯工况下地基土中超孔隙水压力的空间分布及其随时间的演化规律,确定了强夯的点夯能量、收锤标准、夯点间距以及夯击间歇时间等强夯参数,并通过采取不停航施工措施,确保了项目施工安全,对今后国内外类似机场在不停航情况下进行强夯施工具有一定借鉴意义。
In order to ensure the smooth progress of the ground consolidation by dynamic compaction under the condition of non-suspending air service in the airport flight area,based on Juba International Airport upgrading project of South Sudan,the field test of dynamic compaction for foundation reinforcement was carried out.By observing the spatial distribution of excess pore water pressure in foundation soil under different dynamic compaction conditions and its evolution with time,the parameters of dynamic compaction,such as the tamping energy,tamping stop standard,spacing between tamping point and time interval of dynamic compaction,were determined.By adopting construction measures under the condition of not suspending the air service,the project safety was ensured.The research results provide reference for similar projects in domestic or overseas airports in the future.
作者
焦淑贤
胥祥伟
汪日灯
JIAO Shu-xian;XU Xiang-wei;WANG Ri-deng(CCCC-FHDI Engineering Co. , Ltd. , Guangzhou 510230, Guangdong, China;CCCC-AIDIC Engineering Co. , Ltd. 9 Guangzhou 510230, Guangdong ,China)
出处
《筑路机械与施工机械化》
2019年第8期80-84,共5页
Road Machinery & Construction Mechanization
基金
民航局科技项目(20150224)
关键词
机场工程
强夯
不停航施工
超孔隙水压力
airport engineering
dynamic compaction
non-suspending air service
excess pore water pressure
