XX 路道路工程一标钻孔桩穿越溶洞专项方案编制： 审核： 审批： XX 局 XX 公司 XX 路道路工程 1 标项目部二〇一三年五月目 录目 录....................................................................11、工程概况..............................................................21.1 设计概况..............................................................21.2 地质条件:.............................................................21.2.1 地层岩性自上而下依次为：..........................................21.2.2 地质状况分析：....................................................22、编制依据..............................................................23、施工计划..............................................................24、施工工艺及方法........................................................24.1 施工准备................................................................24.1.1 技术准备............................................................24.1.2 机具准备............................................................24.1.3 材料准备............................................................24.1.4 作业准备............................................................24．2 施工工艺流程...........................................................24.3 施工方法................................................................24.3.1 测量放样............................................................24.3.2 埋设钢护筒..........................................................24.3.3 钻机就位............................................................24.3.4 钻机钻孔...........................................................24.3.5 穿越溶洞填充段钻孔施工..............................................24.3.6 成孔检查............................................................24.3.7 排渣、清孔..........................................................24.3.8 钻孔与灌注作业的连续性..............................................24.3.9 注意事项........................................
