船厂吹填粉细砂地基强夯加固质量控制  

Quality control of dynamic compaction used on dredged sand foundation of shipyard

作　　者：杨传景[1,2] Yang Chuanjing(China Shipbuilding Ndri Engineering Co.,Ltd,Shanghai 200063,China;Shanghai Research Center of Ocean ＆ Shipbuilding Engineering,Shanghai 200063,China)

机构地区：[1]中船第九设计研究院工程有限公司,上海200063 [2]上海海洋工程和船厂水工特种工程技术研究中心,上海200063

出　　处：《山西建筑》2018年第17期87-89,共3页Shanxi Architecture

摘　　要：通过静力触探监测比贯入阻力并采用探地雷达现场监测试夯后粉细砂土层结构变化,采用地下水位仪观测真空降水效果,采用三维有限元数值模拟强夯后粉细砂土层竖向位移;确定了夯击能、夯锤间距和夯击次数等施工参数,明确了降水深度、比贯入阻力和最后两夯沉降差等质量控制参数。Ground penetrating radar and static cone penetration test were used to observe the variation of soil structure after dynamic compaction.Electrical contacted water level indicator was used to monitoring the effect of dewatering. Three-dimensional finite element software was also used to simulate the vertical deformation of soil structure. Tamping energy,distance of tamping hammer and tamping times were given. Dewatering depth,specific penetration resistance and vertical deformation difference of last two times tamping were specified as quality control parameter.

关 键 词：粉细砂 强夯 质量控制 

分 类 号：TU472[建筑科学—结构工程]