【正文】 泥漿制備 ......................................................................................................... 5 埋設護筒 ......................................................................................................... 6 鉆機成孔 ......................................................................................................... 6 成孔檢查 ......................................................................................................... 8 清孔 ................................................................................................................. 9 鋼筋籠骨架的 制作安裝 ................................................................................... 9 導管試壓及安裝 ............................................................................................ 12 二次清孔 ..................................................................................................... 12 灌注水下混凝土 .......................................................................................... 13 鑿除樁頭和樁基檢測 .............................................................................................. 14 . 1 鑿除樁頭 ....................................................................................................... 14 樁基檢測 ....................................................................................................... 14 鉆機工作原理及常見事故的預防、處理 .................................................................. 14 四 質(zhì)量控制標準 .......................................................................................................... 15 五 鉆孔事故預防與處理 ............................................................................................... 17 ......................................................................................................................... 17 坍孔的原因 .................................................................................................... 17 3 坍孔的預防和處理 ......................................................................................... 17 斜孔 ......................................................................................................................... 18 斜孔原因 ....................................................................................................... 18 斜孔的預防和處理 ......................................................................................... 18 擴孔和縮孔 .............................................................................................................. 18 糊鉆 ........................................................................................................................ 19 導管進水 ................................................................................................................. 19 導管進水原因： ............................................................................................ 19 預防和處理方法 ............................................................................................ 19 鋼筋籠上浮 .............................................................................................................. 19 六 保證措施 ................................................................................................................. 20 工 期保證措施 .......................................................................................................... 20 從人力資源 .................................................................................................... 20 材料設備上保證 ............................................................................................ 20 質(zhì)量保證措施 .......................................................................................................... 20 七 安全文明施工 .......................................................................................................... 21 施工安全 ..........................................................................