呼和浩特市轨道交通1号线一期工程新华广场站悬臂桩施工方案编制：复核：审核：批准：中铁一局集团有限公司呼和浩特市轨道交通1号线一期工程03标段项目经理部2016年11月18日目录1编制依据................................................................12编制原则................................................................13工程概况................................................................23.1工程简介...........................................................23.2地质水文特征.......................................................23.2.1工程地质条件.................................................23.2.2水文条件.....................................................43.3含义及作用.........................................................53.3.1含义.........................................................53.3.2作用.........................................................54悬臂桩施工重点、难点分析................................................64.1悬臂桩工程特点.....................................................64.2悬臂桩施工重点.....................................................64.3悬臂桩施工难点.....................................................64.4施工对策...........................................................75安全、质量目标..........................................................75.1安全目标...........................................................75.2质量目标...........................................................86施工组织及安排..........................................................86.1项目部管理组织机构和安全管理人员...................................86.1.1项目组织机构.................................................86.1.2安全管理人员.................................................96.2劳动力组织.........................................................96.3机械配置..........................................................107施工方案...............................................................117.1悬臂桩总体施工方案................................................117.2悬臂桩施工顺序及工期安排..........................................117.2.1悬臂桩施工顺序..............................................117.2.2悬臂桩施工指标分析..........................................127.2.3施工工期安排................................................127.3施工方案及技术措施................................................127.3.1钻孔桩施工工艺流程..........................................127.3.2施工工艺....................................................147.3.3悬臂桩施工工艺标准要求......................................208悬臂桩施工常见问题及处理措施...........................................238.1坍孔..............................................................238.1.1坍孔原因....................................................238.1.2坍孔的预防和处理............................................248.2钻孔偏斜..........................................................248.2.1偏斜原因....................................................248.2.2预防和处理..................................................248.3扩孔..............................................................248.4断桩..............................................................259工期保证措施...........................................................2610质量保证措施..........................................................2710.1...
