擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)基(ji)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，灰(hui)土擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，環保擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，水泥土擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，素土擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，夯擴擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，沉管(guan)擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，強夯地基(ji)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，碎(sui)石擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，擠(ji)(ji)密(mi)(mi)(mi)螺(luo)紋樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，鉆孔灌注樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，軟(ruan)土地基(ji)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，灰(hui)土樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，我公司主營：擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)工(gong)(gong)(gong)(gong)程(cheng)

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說(shuo)到強(qiang)(qiang)夯(hang)施(shi)工(gong)(gong)隊，可能很多人都不太了解。其實這(zhe)(zhe)是我(wo)們在(zai)強(qiang)(qiang)夯(hang)施(shi)工(gong)(gong)隊建設夯(hang)實基(ji)礎的(de)(de)(de)過程中經常(chang)看到的(de)(de)(de)一(yi)(yi)個術(shu)語(yu)。強(qiang)(qiang)夯(hang)施(shi)工(gong)(gong)隊處理(li)的(de)(de)(de)目的(de)(de)(de)是保證施(shi)工(gong)(gong)過程中的(de)(de)(de)安全，解決施(shi)工(gong)(gong)前(qian)的(de)(de)(de)一(yi)(yi)系列(lie)麻煩。比(bi)如幫助改善施(shi)工(gong)(gong)中的(de)(de)(de)收(shou)(shou)(shou)縮(suo)特(te)性，蓄水(shui)池夯(hang)擴擠密樁施(shi)工(gong)(gong)，這(zhe)(zhe)是由于地基(ji)本身的(de)(de)(de)高度收(shou)(shou)(shou)縮(suo)，說(shuo)明對建筑物的(de)(de)(de)沉(chen)降(jiang)(jiang)和差異沉(chen)降(jiang)(jiang)比(bi)較大，需要采取一(yi)(yi)定的(de)(de)(de)措(cuo)施(shi)使(shi)地基(ji)土(tu)收(shou)(shou)(shou)縮(suo)，進而提高收(shou)(shou)(shou)縮(suo)模量。

強夯(hang)施(shi)工隊(dui)(dui)處(chu)理(li)(li)有助于改善剪(jian)切(qie)特(te)性(xing)(xing)，從而避免(mian)剪(jian)切(qie)破壞，增強地基土的(de)(de)抗剪(jian)強度，進(jin)而避免(mian)因(yin)地基承載力差而造成的(de)(de)坑底起拱(gong)；改善透水(shui)(shui)特(te)性(xing)(xing)，很多(duo)人都知道大壩或房屋可(ke)能(neng)會(hui)發(fa)生滲水(shui)(shui)，強夯(hang)施(shi)工隊(dui)(dui)處(chu)理(li)(li)就(jiu)是通過研(yan)究地基本身的(de)(de)透水(shui)(shui)性(xing)(xing)和不透水(shui)(shui)性(xing)(xing)來實施(shi)一(yi)定的(de)(de)措施(shi)，進(jin)而避免(mian)開挖時的(de)(de)滲水(shui)(shui)。

在(zai)施工(gong)過程中，不可避免地(di)會遇(yu)到(dao)一些特殊的土。強夯施工(gong)隊(dui)處理對特殊土也(ye)(ye)有很大的改良作用，有助于(yu)消除或降低黃(huang)土中的濕陷(xian)性，也(ye)(ye)有助于(yu)處理膨(peng)脹(zhang)(zhang)土的膨(peng)脹(zhang)(zhang)性。

擠(ji)密樁(zhuang)(zhuang)(zhuang)基施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，灰土擠(ji)密樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，環保(bao)擠(ji)密樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，水泥土擠(ji)密樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，素(su)土擠(ji)密樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，夯擴(kuo)擠(ji)密樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，沉管擠(ji)密樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，強夯地基施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，碎(sui)石擠(ji)密樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，擠(ji)密螺(luo)紋樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，鉆孔灌(guan)注樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，軟土地基施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，灰土樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，我公(gong)司主營：擠(ji)密樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，擠(ji)密樁(zhuang)(zhuang)(zhuang)工(gong)(gong)(gong)(gong)程

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造成原因和(he)處理方法有以下幾點(dian)：

檢查不夠認真，清(qing)孔不干凈或(huo)未進行二(er)次清(qing)孔，是造(zao)成樁底沉(chen)渣量過多的首要原(yuan)因。

清孔的(de)(de)主(zhu)要目的(de)(de)是清除孔底(di)沉(chen)(chen)(chen)渣(zha)，而孔底(di)沉(chen)(chen)(chen)渣(zha)則是影響灌注樁(zhuang)(zhuang)承載(zai)能(neng)力的(de)(de)主(zhu)要因素之一。灌注樁(zhuang)(zhuang)成孔至設(she)計(ji)標高，應充分利(li)用鉆桿(gan)在原位進行次(ci)清孔，太原夯擴擠密(mi)樁(zhuang)(zhuang)施(shi)工，直到孔口返(fan)漿比重持續(xu)小(xiao)于(yu)1.10-1.20，測得孔底(di)沉(chen)(chen)(chen)渣(zha)厚度小(xiao)于(yu)50mm，即抓(zhua)緊(jin)吊放鋼(gang)(gang)筋(jin)籠和沉(chen)(chen)(chen)放混凝(ning)土(tu)(tu)導管(guan)。由于(yu)孔內(nei)原土(tu)(tu)泥漿在吊放鋼(gang)(gang)筋(jin)籠和沉(chen)(chen)(chen)放導管(guan)這(zhe)段時間(jian)內(nei)使處(chu)于(yu)懸浮(fu)狀態(tai)的(de)(de)沉(chen)(chen)(chen)渣(zha)再次(ci)沉(chen)(chen)(chen)到樁(zhuang)(zhuang)孔底(di)部而成為性(xing)沉(chen)(chen)(chen)渣(zha)，從(cong)而影響樁(zhuang)(zhuang)基工程的(de)(de)質量。因此，必須在混凝(ning)土(tu)(tu)灌注前利(li)用導管(guan)進行第二次(ci)清孔。

泥漿(jiang)(jiang)比(bi)(bi)重過小或(huo)泥漿(jiang)(jiang)注入量(liang)不足而難于將沉渣浮起，從而造成樁底(di)沉渣量(liang)過多。這就要求在成孔后，鉆頭提高孔底(di)250px-500px，保持慢速空轉，夯擴擠(ji)密樁施工(gong)聯系(xi)電話，維持循環清(qing)孔時間(jian)不少于30分(fen)鐘(zhong)。采用(yong)性能較好的泥漿(jiang)(jiang)，控制泥漿(jiang)(jiang)的比(bi)(bi)重和粘度(du)，不要用(yong)清(qing)水(shui)進行置(zhi)換(huan)。

鋼筋(jin)(jin)籠吊放(fang)過(guo)程(cheng)中(zhong)，未對準(zhun)孔(kong)位而碰撞孔(kong)壁使泥土坍落樁(zhuang)底，造成(cheng)樁(zhuang)底沉(chen)渣。因此(ci)，在鋼筋(jin)(jin)籠吊放(fang)時，要使鋼筋(jin)(jin)籠的中(zhong)心與樁(zhuang)中(zhong)心保持一致，避免碰撞孔(kong)壁。可采用鋼筋(jin)(jin)籠冷壓接頭工藝加(jia)快對接鋼筋(jin)(jin)籠速(su)度，減少(shao)空孔(kong)時間，從而減少(shao)沉(chen)渣

擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)基施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，灰土(tu)(tu)擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，環保擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，水泥土(tu)(tu)擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，素(su)土(tu)(tu)擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，30米夯擴擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，夯擴擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，沉管(guan)擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，強夯地(di)基施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，碎石擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，擠(ji)(ji)(ji)密(mi)(mi)(mi)螺紋樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，鉆(zhan)孔灌注樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，軟土(tu)(tu)地(di)基施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，灰土(tu)(tu)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，我(wo)公(gong)司(si)主(zhu)營：擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，擠(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)

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坑邊荷載

1、坑邊(bian)堆(dui)置材料包括沿挖土(tu)方邊(bian)緣移動運輸(shu)工具和機械(xie)不(bu)應離槽(cao)邊(bian)過近，距坑槽(cao)上(shang)部邊(bian)緣不(bu)少于(yu)3m，槽(cao)邊(bian)1m以(yi)內不(bu)得堆(dui)土(tu)、堆(dui)料、停置機具。

2、基坑周(zhou)邊嚴禁超堆荷載(zai)。

3、基坑(keng)邊緣嚴禁(jin)堆置土方和建筑材料，或沿(yan)挖方邊緣移動運輸工具和機械，堆放必須距基坑(keng)上部邊緣不(bu)(bu)少于4m，堆置高度不(bu)(bu)應超過1.5m。

4、各類(lei)施工(gong)機械距基(ji)坑(keng)、邊(bian)(bian)坡和基(ji)礎(chu)樁(zhuang)孔(kong)邊(bian)(bian)的距離，應根據設(she)備重量、基(ji)坑(keng)、邊(bian)(bian)坡和基(ji)礎(chu)樁(zhuang)的支護(hu)、土(tu)質(zhi)情況確(que)定，堆載(zai)不得超過設(she)計規定。

5、各類(lei)施(shi)(shi)工機械施(shi)(shi)工與基坑(keng)(keng)、邊坡(po)的(de)距離小于規定時(shi)，應對施(shi)(shi)工機械作業(ye)范圍(wei)內的(de)基坑(keng)(keng)支(zhi)護、地面等采取(qu)加固措施(shi)(shi)（如鋪設鋼板、枕木等）。

基坑上下通道

1、基坑施工作業(ye)人(ren)員上(shang)下必須設(she)置通道，不得(de)攀爬(pa)欄桿。

2、人員通(tong)道應(ying)在施工組織(zhi)設(she)計中確定。視條件可采用(yong)梯子、斜道（有踏步級）兩側(ce)要設(she)扶(fu)手欄桿。

3、土(tu)方開挖過程(cheng)中及時對(dui)形成的(de)基坑(keng)進行欄桿圍護，在(zai)基坑(keng)邊采用腳手管搭設人行通道上下基坑(keng)。

4、通道的設置，在結構上必須(xu)牢固可靠，數(shu)量、位置上應符合DL50091-2004《電力建設安(an)全(quan)工作(zuo)規程部(bu)分(fen)：火力發電》的相關要求。