论文部分内容阅读
合肥高铁都市花园项目主楼3#、5#~7#楼基础采用CFG桩复合地基+筏板基础,CFG桩有效桩长13m,桩径400mm,桩体强度等级C30。桩位、桩身垂直度、密实度、拔钻时钻杆的提升速度是施工中的控制重点,施工中必须有专人进行旁站,并记录相关参数。桩机施工行进路线的确定必须科学、合理,防止扰动刚施工的桩基及破坏已布置的桩点,桩头浮土须在成桩且桩身混凝土初凝之后清除,以避免造成浅层断桩。
Hefei High Speed Rail Urban Garden project main building 3 #, 5 # ~ 7 # floor foundation with CFG pile composite foundation + raft foundation, CFG pile effective pile length 13m, pile diameter 400mm, pile strength grade C30. Pile, pile verticality, density, drill pipe lifting speed is the focus of construction control, construction must have someone to side station, and record the relevant parameters. Pile driver construction route must be determined to be scientific and reasonable to prevent disturbing the construction of the pile foundation and the destruction of the pile has been arranged, the pile of floating earth and concrete to be piled in the pile after the initial set to clear, in order to avoid the formation of shallow broken pile .