沉井施工方案(專家論證修改版)

1、1目錄目錄一、編制依據(jù)..........................................................................................................41.沉井簡介................................................................................................

2、........................42.工程概況.......................................................................................................................53.沉井所選用的材料...........................................................

3、.............................................64.鋼筋混凝土保護層........................................................................................................65.工程地質(zhì)狀況簡介.................................................

4、.......................................................66.沉井井壁摩阻力參數(shù)的經(jīng)驗表..................................................................................117.地質(zhì)條件對沉井所產(chǎn)生的影響因素................................................

5、..........................11二、施工部署........................................................................................................121.沉井的主要施工方法選擇...................................................................

6、................122.1.1沉井方法：采用排水下沉和干封底的工藝技術(shù)......................................122.1.2降水方法：外排止水帷幕及井內(nèi)集水井排水相結(jié)合..............................122.1.3高壓旋噴樁施工..................................................................

7、......................122.1.4制作與下沉方法：四節(jié)制作、三次下沉..................................................132.沉井工藝流程.......................................................................................................143.施工階段劃分與

8、施工內(nèi)容概述...........................................................................163.1施工準備階段.................................................................................................163.3第二節(jié)沉井制作與下沉階段..............

9、...........................................................173.4第三節(jié)沉井制作與下沉階段.........................................................................183.5第四節(jié)沉井制作...........................................................

10、..................................183.6沉井封底與收尾階段.....................................................................................184.主要施工機械與機具配備計劃......................................................................

11、.....205.主要勞動力使用計劃...........................................................................................215.1勞動力組織的特點.........................................................................................215.2主要工種

12、的勞動力配備數(shù)量.........................................................................216.沉井各階段主要工序的作業(yè)進度控制...............................................................22三、主要項目的施工方法與技術(shù)措施......................................

13、.................................231.工程測量...............................................................................................................2336.監(jiān)測措施...........................................................

14、....................................................567.雨季施工措施.......................................................................................................568.項目部質(zhì)量管理措施..........................................

15、.................................................569.文明施工措施............................................................................................5810.施工應(yīng)急預(yù)案..........................................................

16、................................58五、施工進度（見后附表）.......................................................................................71六、后附圖................................................................................