擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)基(ji)(ji)(ji)施(shi)工(gong)(gong)，灰(hui)土(tu)(tu)(tu)擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)，環保擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)，碎(sui)石(shi)(shi)擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)隊(dui)，水(shui)泥土(tu)(tu)(tu)擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)，素土(tu)(tu)(tu)擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)，夯擴擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)，沉管擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)，強夯地基(ji)(ji)(ji)施(shi)工(gong)(gong)，碎(sui)石(shi)(shi)擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)，擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)螺紋(wen)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)，鉆(zhan)孔(kong)灌注樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)，原平碎(sui)石(shi)(shi)擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)，軟(ruan)土(tu)(tu)(tu)地基(ji)(ji)(ji)施(shi)工(gong)(gong)，灰(hui)土(tu)(tu)(tu)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)，我公司主(zhu)營(ying)：擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)，擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)工(gong)(gong)程(cheng)

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基底標高不符(fu)合要求現象：

　(1)基槽(坑(keng))底標高不(bu)(bu)符合設計規定(ding)值，造成淺基礎埋(mai)置(zhi)深度不(bu)(bu)足或超挖。

　(2)基底持力(li)層土質不符(fu)合(he)設計要求，鐵路碎(sui)石擠密樁施工，或被人工擾動，造成持力(li)層承載能(neng)力(li)降低。

　1. 原因分析：

　(1)測量(liang)放線錯誤，造成基底標高不足(zu)或過深。

　(2)地質勘(kan)察(cha)資料與實際情(qing)況(kuang)不符，雖已挖(wa)至設(she)(she)計規定深度(du)，但土(tu)質仍(reng)不符合設(she)(she)計要求(qiu)。

　(3)選用的(de)施工機(ji)械和施工方法不當，造成超(chao)挖。

　2. 預防措施：

　(1)當發現控制樁或標志板有(you)被碰(peng)撞和移動跡象(xiang)時(shi)，應復(fu)查校正，防(fang)止標高出現過大誤差。

　(2)防止(zhi)超挖(wa)。采用機械(xie)開挖(wa)基槽(坑)時，可在基底標高以(yi)上預留(liu)一層土用人工清理，其厚度應根(gen)據施(shi)工機械(xie)確定(ding)。

　(3)基(ji)槽(坑)挖至(zhi)基(ji)底標(biao)高(gao)后，應會(hui)同(tong)設(she)(she)計(ji)單位(wei)、監理單位(wei)(或建(jian)設(she)(she)單位(wei))檢查基(ji)底土(tu)質(zhi)是否符合要求(qiu)，并作出隱蔽(bi)工程(cheng)記錄。

　3. 治理方法：

　(1)當開(kai)挖(wa)深(shen)度達(da)到設(she)計(ji)規(gui)定，而土質(zhi)不符(fu)合(he)設(she)計(ji)要求(qiu)時，應(ying)會同設(she)計(ji)單位協商處理(li)。

　(2)如個(ge)別地方超(chao)(chao)挖(wa)時，應用與基(ji)土(tu)相(xiang)同的(de)(de)土(tu)料(liao)填補(bu)，并(bing)夯實(shi)(shi)至(zhi)要求的(de)(de)密實(shi)(shi)度，或用碎石(shi)類土(tu)填補(bu)并(bing)夯實(shi)(shi)。在重要部位(wei)(wei)超(chao)(chao)挖(wa)時，可用低(di)強度等級混凝(ning)土(tu)填補(bu)，并(bing)應取得設(she)計單位(wei)(wei)同意。

擠(ji)(ji)密樁(zhuang)基(ji)施(shi)(shi)(shi)工(gong)，灰(hui)土(tu)擠(ji)(ji)密樁(zhuang)施(shi)(shi)(shi)工(gong)，環保(bao)擠(ji)(ji)密樁(zhuang)施(shi)(shi)(shi)工(gong)，水泥土(tu)擠(ji)(ji)密樁(zhuang)施(shi)(shi)(shi)工(gong)，素土(tu)擠(ji)(ji)密樁(zhuang)施(shi)(shi)(shi)工(gong)，夯(hang)擴擠(ji)(ji)密樁(zhuang)施(shi)(shi)(shi)工(gong)，沉管擠(ji)(ji)密樁(zhuang)施(shi)(shi)(shi)工(gong)，強夯(hang)地(di)基(ji)施(shi)(shi)(shi)工(gong)，碎石擠(ji)(ji)密樁(zhuang)施(shi)(shi)(shi)工(gong)，擠(ji)(ji)密螺紋樁(zhuang)施(shi)(shi)(shi)工(gong)，鉆孔灌注樁(zhuang)施(shi)(shi)(shi)工(gong)，軟土(tu)地(di)基(ji)施(shi)(shi)(shi)工(gong)，灰(hui)土(tu)樁(zhuang)施(shi)(shi)(shi)工(gong)，我公(gong)司主營：擠(ji)(ji)密樁(zhuang)施(shi)(shi)(shi)工(gong)，擠(ji)(ji)密樁(zhuang)工(gong)程

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注(zhu)漿(jiang)(jiang)管、注(zhu)漿(jiang)(jiang)設備、材(cai)料安設控制

對用于注漿(jiang)(jiang)的(de)高壓注漿(jiang)(jiang)泵(beng)、拌漿(jiang)(jiang)機等設備需(xu)進(jin)行(xing)檢查。

高壓(ya)注(zhu)(zhu)漿(jiang)泵的工作參數要(yao)滿足方案(an)要(yao)求(qiu);在(zai)使用前對高壓(ya)注(zhu)(zhu)漿(jiang)泵及(ji)管(guan)線的密(mi)封(feng)性(xing)要(yao)進行(xing)試運行(xing);對注(zhu)(zhu)漿(jiang)管(guan)，要(yao)檢(jian)查(cha)注(zhu)(zhu)漿(jiang)頭的長度、出漿(jiang)孔徑(jing)、孔距是(shi)(shi)(shi)(shi)否(fou)符合(he)(he)方案(an)要(yao)求(qiu);安設注(zhu)(zhu)漿(jiang)管(guan)時，要(yao)檢(jian)查(cha)注(zhu)(zhu)漿(jiang)管(guan)與鋼筋籠連(lian)接是(shi)(shi)(shi)(shi)否(fou)可靠、牢(lao)固;注(zhu)(zhu)漿(jiang)頭是(shi)(shi)(shi)(shi)否(fou)用合(he)(he)適的橡膠膜封(feng)閉、包(bao)裹;注(zhu)(zhu)漿(jiang)管(guan)各節連(lian)接是(shi)(shi)(shi)(shi)否(fou)牢(lao)固、密(mi)封(feng)及(ji)注(zhu)(zhu)漿(jiang)管(guan)上端是(shi)(shi)(shi)(shi)否(fou)略(lve)高出地坪，并(bing)要(yao)有(you)良好的封(feng)堵，以防(fang)止雜物進入堵塞(sai)注(zhu)(zhu)漿(jiang)管(guan)。

澆混凝土控制

孔底沉渣厚度(du)和泥漿的比重在滿足設(she)計(ji)規范標準要求后，方(fang)可澆混凝土。

混(hun)凝(ning)(ning)土(tu)的(de)初(chu)灌(guan)量(liang)要(yao)滿足要(yao)求(qiu);拔管(guan)時要(yao)控(kong)制導(dao)管(guan)在混(hun)凝(ning)(ning)土(tu)中埋入深度(du)，謹防導(dao)管(guan)拔出混(hun)凝(ning)(ning)土(tu)面造成夾泥狀況;控(kong)制好混(hun)凝(ning)(ning)土(tu)灌(guan)注的(de)充盈參數，使其保持(chi)在1.1~1.2，記錄澆(jiao)混(hun)凝(ning)(ning)土(tu)情況。

擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)基(ji)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，灰土(tu)擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，大型廠房(fang)碎石(shi)(shi)擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，環保擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，水泥(ni)土(tu)擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，素土(tu)擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，夯擴擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，沉管擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，強夯地基(ji)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，碎石(shi)(shi)擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，擠(ji)(ji)(ji)密(mi)(mi)(mi)螺紋樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，鉆孔灌(guan)注樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，軟土(tu)地基(ji)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，灰土(tu)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，我(wo)公司主營(ying)：擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)工(gong)(gong)(gong)(gong)程(cheng)

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深層密實法施(shi)工記錄要求：

1）強夯(hang)施(shi)工的夯(hang)擊點布置及技術參數（錘(chui)直(zhi)、落距(ju)、夯(hang)擊點、次數等）應設計(ji)要(yao)求，夯(hang)擊遍數和兩(liang)遍間(jian)的間(jian)歇時間(jian)，應符合設計(ji)與(yu)施(shi)工規范要(yao)求；

2）施(shi)工過(guo)程中(zhong)應(ying)對(dui)各(ge)項參數及施(shi)工情況進行(xing)詳細記錄，包括夯點記錄與每遍(bian)的匯總記錄，對(dui)強夯地基的質量(liang)檢(jian)驗應(ying)在夯后(hou)一定的間歇期之后(hou)進行(xing)；

3）振沖地(di)基在正式施(shi)工(gong)前，應(ying)在現場(chang)在代表性(xing)的(de)(de)(de)場(chang)地(di)上進(jin)行試樁試驗(yan)，確定有(you)關(guan)施(shi)工(gong)參(can)數(shu)，做好(hao)記錄(lu)。施(shi)工(gong)時應(ying)檢(jian)(jian)查(cha)(cha)振沖器與填(tian)料的(de)(de)(de)性(xing)能，施(shi)工(gong)中應(ying)檢(jian)(jian)查(cha)(cha)各種施(shi)工(gong)參(can)數(shu)，并做好(hao)施(shi)工(gong)記錄(lu)。對振沖地(di)基的(de)(de)(de)質量檢(jian)(jian)驗(yan)應(ying)在根(gen)據不同的(de)(de)(de)填(tian)料，在施(shi)工(gong)結束后(hou)間歇(xie)一定時間進(jin)行。