擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)基(ji)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，灰土(tu)擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，環保擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，水泥土(tu)擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，素(su)土(tu)擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，夯(hang)(hang)擴擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，沉管擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，強夯(hang)(hang)地(di)基(ji)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，碎石擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，擠(ji)(ji)(ji)密(mi)(mi)螺紋樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，鉆孔灌注樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，軟土(tu)地(di)基(ji)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，灰土(tu)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，我公司主營：擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)工(gong)(gong)(gong)(gong)(gong)程

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深基(ji)坑發生流砂的補救措施

（1）清理并平(ping)整施(shi)工場地；

（2）標出遍夯點位置(zhi)，并(bing)測量(liang)場地高程(cheng)；

（3）起重機就位，夯錘置于(yu)夯點位置；

（4）測(ce)量夯前錘頂高程；

（5）將夯錘起吊到預定高度，開啟脫(tuo)鉤裝置，待夯錘脫(tuo)鉤自由下(xia)落(luo)后，放下(xia)吊鉤，測量錘頂高程(cheng)，若發現因坑(keng)底傾斜而造(zao)成夯錘歪斜時，應及(ji)時將坑(keng)底整平。

（6）重復步驟

（5）按設計規定的(de)夯擊次數地面沉(chen)降處理及控制標準(zhun)，山西(xi)擠(ji)密(mi)樁(zhuang)基施工(gong)方案，完成(cheng)一個夯點(dian)的(de)夯擊；

（7）換夯點，重復步(bu)驟（3）至(zhi)（6），完(wan)成遍全(quan)部夯點的(de)夯擊；低(di)溫抽真空設備

（8）用(yong)推土機將(jiang)夯(hang)坑填(tian)平，并測量(liang)場地高程；

（9）在規定的間(jian)隔時間(jian)后，按上(shang)述步(bu)驟(zou)逐次完成全(quan)部夯擊遍數(shu)，后用低能量滿夯軟管水壓試(shi)驗機(ji)，將場地表層松土夯實(shi)，并(bing)測量夯后場地高(gao)程。

擠(ji)(ji)密(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)基(ji)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，灰土擠(ji)(ji)密(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，環保擠(ji)(ji)密(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，水泥土擠(ji)(ji)密(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，素(su)土擠(ji)(ji)密(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，夯擴擠(ji)(ji)密(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，沉管擠(ji)(ji)密(mi)樁(zhuang)(zhuang)(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(sui)石擠(ji)(ji)密(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，擠(ji)(ji)密(mi)螺紋樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，鉆(zhan)孔(kong)灌(guan)注(zhu)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，軟(ruan)土地基(ji)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，灰土樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，我(wo)公(gong)司主營：擠(ji)(ji)密(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，擠(ji)(ji)密(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)工(gong)(gong)(gong)(gong)程

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１ 干(gan)振(zhen)碎石樁的定義和(he)原理

干(gan)振碎石樁(zhuang)是采用預沉導(dao)管(guan)、重錘振動壓入工藝施工的碎石樁(zhuang)。其原理主要是振密(mi)和擠密(mi)松散沙土(tu)(tu)、粉土(tu)(tu)、黏性土(tu)(tu)、素填土(tu)(tu)、雜填土(tu)(tu)等地基(ji)。

２ 原材料要求

碎(sui)石(shi)樁(zhuang)施工(gong)(gong)碎(sui)石(shi)由巖石(shi)或礫(li)石(shi)軋制而成，應潔凈、干燥并具有足夠的(de)(de)強(qiang)度和(he)耐磨耗性，山西擠密樁(zhuang)基施工(gong)(gong)工(gong)(gong)程，其(qi)顆粒形狀應具有棱角，不得(de)摻有軟質(zhi)和(he)其(qi)他雜質(zhi)。施工(gong)(gong)中采用天然(ran)級配為(wei)ｌ ｃｍ～３ ｃｍ的(de)(de)碎(sui)石(shi)，含泥量小于５％，并不得(de)含有大于４ ｃｍ的(de)(de)顆粒。

３ 機械設備的要求

干振(zhen)碎石樁需采(cai)用走管(guan)式或履帶式振(zhen)動成樁機，內置平底活頁式樁尖，樁管(guan)ｄ ４２６ ｍｍ，樁管(guan)長(chang)度為設(she)計(ji)樁長(chang)加(jia)３ ｍ，山西擠(ji)密樁基施(shi)工(gong)隊，并設(she)有二次投料口，錘(chui)重大(da)(da)于 ３５ ｋＮ，工(gong)作電流(liu)８０ Ａ左右，激振(zhen)力大(da)(da)于２８０ ｋＮ，配備發電機功(gong)率大(da)(da)于１２０ ｋＷ。

擠(ji)(ji)(ji)(ji)密(mi)樁基施(shi)工(gong)(gong)(gong)(gong)(gong)，灰土(tu)(tu)擠(ji)(ji)(ji)(ji)密(mi)樁施(shi)工(gong)(gong)(gong)(gong)(gong)，山西擠(ji)(ji)(ji)(ji)密(mi)樁基施(shi)工(gong)(gong)(gong)(gong)(gong)，環(huan)保擠(ji)(ji)(ji)(ji)密(mi)樁施(shi)工(gong)(gong)(gong)(gong)(gong)，水(shui)泥土(tu)(tu)擠(ji)(ji)(ji)(ji)密(mi)樁施(shi)工(gong)(gong)(gong)(gong)(gong)，素土(tu)(tu)擠(ji)(ji)(ji)(ji)密(mi)樁施(shi)工(gong)(gong)(gong)(gong)(gong)，夯(hang)擴擠(ji)(ji)(ji)(ji)密(mi)樁施(shi)工(gong)(gong)(gong)(gong)(gong)，沉管擠(ji)(ji)(ji)(ji)密(mi)樁施(shi)工(gong)(gong)(gong)(gong)(gong)，強(qiang)夯(hang)地(di)(di)基施(shi)工(gong)(gong)(gong)(gong)(gong)，碎石擠(ji)(ji)(ji)(ji)密(mi)樁施(shi)工(gong)(gong)(gong)(gong)(gong)，擠(ji)(ji)(ji)(ji)密(mi)螺紋樁施(shi)工(gong)(gong)(gong)(gong)(gong)，鉆孔灌(guan)注樁施(shi)工(gong)(gong)(gong)(gong)(gong)，軟(ruan)土(tu)(tu)地(di)(di)基施(shi)工(gong)(gong)(gong)(gong)(gong)，灰土(tu)(tu)樁施(shi)工(gong)(gong)(gong)(gong)(gong)，我公(gong)司主(zhu)營：擠(ji)(ji)(ji)(ji)密(mi)樁施(shi)工(gong)(gong)(gong)(gong)(gong)，擠(ji)(ji)(ji)(ji)密(mi)樁工(gong)(gong)(gong)(gong)(gong)程

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鉆孔灌注樁后(hou)注漿施工中應何控(kong)制。

一、方案審查控制

鉆孔(kong)灌注(zhu)樁后注(zhu)漿(jiang)技(ji)術施(shi)工(gong)，施(shi)工(gong)單位除(chu)了要編(bian)(bian)制鉆孔(kong)灌注(zhu)樁施(shi)工(gong)方(fang)案外，還需編(bian)(bian)制注(zhu)漿(jiang)技(ji)術的專項施(shi)工(gong)方(fang)案，提供(gong)各種注(zhu)漿(jiang)參(can)數。

后注漿技(ji)(ji)(ji)術(shu)(shu)是一(yi)種新(xin)技(ji)(ji)(ji)術(shu)(shu)，不(bu)同的(de)(de)(de)(de)施工單位，因(yin)其人(ren)員(yuan)的(de)(de)(de)(de)技(ji)(ji)(ji)術(shu)(shu)水(shui)平、機械(xie)設備及工程(cheng)所在地工程(cheng)土物(wu)理力(li)學性(xing)質和(he)(he)賦存狀態(tai)的(de)(de)(de)(de)不(bu)同，選擇的(de)(de)(de)(de)參(can)數(shu)不(bu)盡相同。因(yin)此(ci)，監(jian)理人(ren)員(yuan)要(yao)依據掌握的(de)(de)(de)(de)施工技(ji)(ji)(ji)術(shu)(shu)知(zhi)識(shi)、實際經驗(yan)、相關資料和(he)(he)有關規范、標準，對方案選取的(de)(de)(de)(de)參(can)數(shu)進行認真的(de)(de)(de)(de)審查。審核的(de)(de)(de)(de)參(can)數(shu)主要(yao)有：開塞(sai)時間、開塞(sai)壓力(li)、注漿壓力(li)、注入水(shui)泥的(de)(de)(de)(de)預(yu)控量。

二、鉆孔控制

鉆孔控制主(zhu)要依(yi)據相(xiang)關(guan)規范的要求進行控制。

鉆孔(kong)控(kong)制(zhi)主要(yao)(yao)依(yi)據《建(jian)筑地基(ji)基(ji)礎工(gong)程質量施(shi)工(gong)驗(yan)收規范》《建(jian)筑樁基(ji)技(ji)術規范》的相關要(yao)(yao)求(qiu)和設計(ji)規范進(jin)行控(kong)制(zhi)，重點控(kong)制(zhi)孔(kong)深、孔(kong)徑和垂直度(du)，了解孔(kong)壁情(qing)(qing)況，及時了解孔(kong)內情(qing)(qing)況，是(shi)否有坍孔(kong)、漏水等現(xian)象，以便在后注漿施(shi)工(gong)時采取相應的技(ji)術措施(shi)。