回旋钻机施工方案

目 录

1 编制依据及原则 ...................................................................................... 1

1.1编制依据 ........................................................................................................ 1

1。2编制原则 ...................................................................................................... 1

2 概述 ........................................................................................................ 2

2。1桥址概况 ...................................................................................................... 2

2。2主要技术指标 .............................................................................................. 2

2。3主要工程内容及数量 .................................................................................. 2

2。4重难点工程及施工对策 .............................................................................. 2

2.4。1重难点工程 ............................................................................................ 2

2。4。2主要施工对策 ...................................................................................... 3

3 工程地质、气候、水文条件 ..................................................................... 3

3.1工程地质条件 ................................................................................................ 3

3.2气候、水文条件 ............................................................................................. 5

4 施工总体布置 .......................................................................................... 6

4。1施工用水 ...................................................................................................... 6

4.2施工用电 ......................................................................................................... 6

4.3施工便道 ......................................................................................................... 6

5 施工工艺及方法 ...................................................................................... 7

5。1施工准备 ...................................................................................................... 7

5.2施工工艺流程 ................................................................................................. 8

5.3施工场地及平台 ............................................................................................. 8

5。4测量放样 ...................................................................................................... 9 5.5护筒及护桩埋设 ............................................................................................. 9

5.6泥浆池、沉淀池设置 ..................................................................................... 9

5.7钻机就位 ....................................................................................................... 10

5.8钻孔 ............................................................................................................... 10

5.9钻孔记录及渣样收集 ................................................................................... 11

5.10清孔及检孔 ................................................................................................. 11

5。11钢筋笼制作与下放 .................................................................................. 12

5。11.1钢筋笼制作 ......................................................................................... 12

5。11.2钢筋笼下放 ......................................................................................... 13

5.12声测管安装 ................................................................................................. 13

5.13导管安放 ..................................................................................................... 14

5.14二次清孔 ..................................................................................................... 14

5.15水下砼浇筑 ................................................................................................. 14

5.16桩基检测 ..................................................................................................... 16

6 常见问题及处理措施 ..............................................................................16

7 施工进度安排 .........................................................................................21

8 资源配置 ................................................................................................21

8.1组织机构 ....................................................................................................... 21

8.2作业人员配置 ............................................................................................... 21

8.3机械设备配置 ............................................................................................... 22

9 雨季施工措施 .........................................................................................22

9.1雨季施工总要求 ........................................................................................... 22

9。2合理安排作业时间 .................................................................................... 22