瀘州市茜草長(zhǎng)江大橋東引橋基礎(chǔ)施工方案

1、目錄目錄一工程概況..........................................................................................................................................1二樁基施工...................................................................

2、.........................................................................11、施工工藝流程................................................................................................................................22、挖孔前準(zhǔn)備..

3、..................................................................................................................................33、樁孔開(kāi)挖...................................................................................

4、.....................................................34、挖孔注意事項(xiàng)................................................................................................................................75、挖孔的安全技術(shù)措施..................

5、..................................................................................................76、挖空質(zhì)量控制.................................................................................................................

6、...............87、鋼筋籠的制作與安裝....................................................................................................................88、混凝土澆注.....................................................................

7、.............................................................109、樁基檢測(cè)......................................................................................................................................11三承臺(tái)施工..........

8、..................................................................................................................................1116號(hào)墩承臺(tái)爆破施工..............................................................................

9、.........................................121、模板............................................................................................................................................122、鋼筋安裝.........................

10、...........................................................................................................133、安裝冷卻水管.......................................................................................................

11、.....................134、混凝土澆筑及養(yǎng)護(hù)....................................................................................................................16四人員組織................................................................

12、..........................................................................16五主要機(jī)械設(shè)備....................................................................................................................................17六施工

13、計(jì)劃..........................................................................................................................................17七安全、質(zhì)量保證......................................................................

14、........................................................181、質(zhì)量要求....................................................................................................................................18瀘州市茜草長(zhǎng)江大橋東引橋基礎(chǔ)施工方案2178

15、210.314194209.51823184206.51826筑砼成樁。二樁基施工樁基施工東引橋橋墩位枯水期均位于岸上，必須利用枯水期抓緊施工，因河灘地為細(xì)沙覆蓋層，為保障挖孔過(guò)程中的安全，覆蓋層中必須作好混凝土護(hù)壁支護(hù)。挖孔樁采用風(fēng)鎬配合風(fēng)動(dòng)鑿巖機(jī)開(kāi)挖，人工分層鑿除。鋼筋籠則采用汽車(chē)吊機(jī)分段吊裝接長(zhǎng)后下放，采用串筒法澆筑混凝土。1、施工工藝流程施工工藝流程挖孔樁施工工藝框圖施工場(chǎng)地平整測(cè)量放樁位逐層開(kāi)挖測(cè)量孔深、檢孔質(zhì)量檢測(cè)并簽證混凝