目录一、编制根据...............................................................................................................................................1二、工程概况...............................................................................................................................................1三、工程地质及水文地质状况...................................................................................................................2四、桩基设计概况.......................................................................................................................................4五、成孔施工工艺选择...............................................................................................................................55.1 地铁 9 号线七里庄站试验桩方案....................................................................................................55.2 地铁 9 号线七里庄站试验桩施工记录............................................................................................6六、施工准备..............................................................................................................................................11七、施工布署.............................................................................................................................................12八、施工工艺.............................................................................................................................................138.1 全套管钻孔桩基本施工流程..........................................................................................................138.2 全套管钻孔桩基本施工措施..........................................................................................................138。3 关键技术........................................................................................................................................15九、本工程的重要难点............................................................
