【正文】 77 省道延伸線龍灣至洞頭疏港公路工程 第 5 標(biāo)段 （ K25+850~K32+600） 預(yù)應(yīng)力砼 管樁 施工方案 編制單位：中天路橋有限公司 77 省道延伸線龍灣至洞頭 疏港公路工程第五標(biāo)段項(xiàng)目經(jīng)理部 編制日期： 2021 年 3 月 10日 中天路橋有限公司 77 省道第 5 標(biāo)段 預(yù)應(yīng)力砼管樁專項(xiàng)施工方案 中天路橋有限公司 Zhongtian Roadamp。Bridge Co.,Ltd 第 2 頁 目 錄 一、編制說明 ............................................................................................................................... 4 、編制依據(jù) ...................................................................................................................... 4 、編制范圍 ...................................................................................................................... 4 二、工程概述 ............................................................................................................................... 4 、工程概況 ...................................................................................................................... 4 、預(yù)應(yīng)力砼管樁基本情況介紹 .......................................................................................... 4 、沿線自然地理特征 ........................................................................................................ 5 1）氣象 .......................................................................................................................... 5 2）水文 .......................................................................................................................... 5 3）地質(zhì) .......................................................................................................................... 6 三、施工部署 ............................................................................................................................... 6 、工 期安排 ...................................................................................................................... 6 、工程目標(biāo) ...................................................................................................................... 6 ..................................................................................................................... 6 ..................................................................................................................... 6 ..................................................................................................................... 7 .............................................................................................................. 7 ..................................................................................................................... 7 、施工準(zhǔn)備 ...................................................................................................................... 7 ..................................................................................................................... 7 ..................................................................................................................... 8 ..................................................................................................................... 8 、人員、機(jī)械、材料投入情況 .......................................................................................... 8 ................................................................................................ 8 .................................................................................................... 9 ............................................................................................. 9 ..................................................................................................................... 9 四、施工工藝及方法 ....................................................................................................................10 、預(yù)應(yīng)力砼管樁施工工藝流程圖 ......................................................................................10 、施工準(zhǔn)備 ..................................................................................................................... 11 、施工工藝及操作要點(diǎn) ....................................................................................................12 .................................................................................................................12 .............................................................................................................13 、清理 ..........................................................................................................13 ....................................................................................................................14 、就位 ..........................................................................................................14 、就位及調(diào)整垂直度 .....................................................................................14 錘擊沉樁 ....................................................................................................................14 ...........................................................................................................................15 ....................................................................................................................16 ...................................................................................................................17 中天路橋有限公司 77 省道第 5 標(biāo)段 預(yù)應(yīng)力砼管樁專項(xiàng)施工方案 中天路橋有限公司 Zhongtian Roadamp。Bridge Co.,Ltd 第 3 頁 ...................................................................................................................17 、防止質(zhì)量通病措施 ...................................................................