擠(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)基(ji)(ji)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，灰(hui)土擠(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，環保擠(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，30米(mi)擠(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)基(ji)(ji)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，水泥(ni)土擠(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，素土擠(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，夯(hang)擴擠(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，沉管擠(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，樓房擠(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)基(ji)(ji)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，強夯(hang)地(di)基(ji)(ji)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，碎(sui)石擠(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，擠(ji)(ji)密(mi)(mi)螺(luo)紋樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，鉆孔灌注(zhu)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，軟土地(di)基(ji)(ji)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，灰(hui)土樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，我公(gong)司主營：擠(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，擠(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)工(gong)(gong)程

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土木工(gong)程的(de)地基問題，概括起來有四(si)個(ge)方面(mian)。

　1、強(qiang)度和穩定性(xing)問題；

　2、壓縮(suo)及不均勻沉降問題(ti)；

　3、地(di)基的滲(shen)漏量超過允許值，會發(fa)生水量損失導致發(fa)生事故。

　4、、機器以及車輛的振動(dong)、波浪作(zuo)用和等(deng)動(dong)力荷載可(ke)能引(yin)起地基(ji)土(tu)，特別是飽和無粘性土(tu)的液化、失穩和震(zhen)陷等(deng)危害(hai)。

土木(mu)工程的地基(ji)問題處理

　地基處理常采用的方法：

　1、采取措施使土中孔隙減少、土顆粒之間(jian)靠近(jin)，密(mi)度加大，土得承(cheng)載力提(ti)高；

　2、在(zai)地(di)基(ji)中摻(chan)加各種(zhong)物料，通(tong)過物理化學作用把土(tu)顆粒膠結在(zai)一起，使使地(di)基(ji)承載力提(ti)高，剛度(du)加大、變(bian)形減小(xiao)。

　砂(sha)樁、碎(sui)石樁、水泥(ni)粉煤灰碎(sui)石樁

　碎(sui)石(shi)樁(zhuang)和砂(sha)(sha)樁(zhuang)合稱為粗顆(ke)粒土樁(zhuang)。是指(zhi)用振動、沖(chong)擊或振動水(shui)沖(chong)等方式(shi)在軟弱(ruo)地基中成孔(kong)，再將碎(sui)石(shi)或砂(sha)(sha)擠壓入孔(kong)，形成大直徑(jing)的由碎(sui)石(shi)或砂(sha)(sha)構(gou)成的密實樁(zhuang)體(ti)，具有擠密、置換、墊層(ceng)和加筋等加固作用。

　水(shui)泥粉煤灰碎石樁（簡稱CFG）是在碎石樁的(de)(de)基礎上(shang)加進一(yi)些(xie)石屑、粉煤灰和少(shao)量水(shui)泥，加水(shui)拌合制成的(de)(de)具有一(yi)定強(qiang)度的(de)(de)樁。樁的(de)(de)承載(zai)力(li)來自樁全長產(chan)生的(de)(de)摩(mo)阻(zu)力(li)及樁端承載(zai)力(li)，適用于多(duo)層(ceng)和高層(ceng)建筑地基。

擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)基施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，灰(hui)(hui)土(tu)擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，環保擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，水泥土(tu)擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，素土(tu)擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，夯擴擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，沉管擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，強夯地(di)基施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，碎石擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，擠(ji)(ji)密(mi)(mi)(mi)(mi)螺紋樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，鉆孔灌注樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，軟土(tu)地(di)基施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，灰(hui)(hui)土(tu)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，山西擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)基施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，我公司主營(ying)：擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)工(gong)(gong)(gong)程

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深層(ceng)密實法施工記錄要求：

1）強夯(hang)施工的夯(hang)擊(ji)點布置及技術參(can)數（錘直、落距、夯(hang)擊(ji)點、次數等）應設計(ji)要(yao)求，夯(hang)擊(ji)遍(bian)數和兩遍(bian)間(jian)的間(jian)歇時(shi)間(jian)，應符合設計(ji)與(yu)施工規范要(yao)求；

2）施工(gong)過(guo)程中應對各項參數及(ji)施工(gong)情(qing)況進行詳細記(ji)錄(lu)，包括(kuo)夯點記(ji)錄(lu)與每(mei)遍的(de)匯總(zong)記(ji)錄(lu)，擠密樁(zhuang)基(ji)施工(gong)加固，對強夯地基(ji)的(de)質量檢驗應在夯后一定(ding)的(de)間歇期之后進行；

3）振沖(chong)地基在正式(shi)施(shi)工(gong)(gong)前，應(ying)在現場(chang)(chang)在代表性的(de)(de)(de)場(chang)(chang)地上進行試樁試驗，確定(ding)有關施(shi)工(gong)(gong)參數，做(zuo)好(hao)記(ji)錄(lu)。施(shi)工(gong)(gong)時應(ying)檢(jian)(jian)查振沖(chong)器與填(tian)料(liao)的(de)(de)(de)性能，施(shi)工(gong)(gong)中應(ying)檢(jian)(jian)查各種施(shi)工(gong)(gong)參數，并做(zuo)好(hao)施(shi)工(gong)(gong)記(ji)錄(lu)。對振沖(chong)地基的(de)(de)(de)質量檢(jian)(jian)驗應(ying)在根據不同的(de)(de)(de)填(tian)料(liao)，在施(shi)工(gong)(gong)結(jie)束后間(jian)歇一定(ding)時間(jian)進行。

擠密(mi)樁(zhuang)(zhuang)(zhuang)基(ji)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，灰土(tu)擠密(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，環保擠密(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，水(shui)泥土(tu)擠密(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，素土(tu)擠密(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，夯擴擠密(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，沉管擠密(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，強夯地基(ji)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，碎(sui)石擠密(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，擠密(mi)螺紋樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，鉆孔灌(guan)注樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，軟土(tu)地基(ji)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，灰土(tu)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，我公司主營：擠密(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，擠密(mi)樁(zhuang)(zhuang)(zhuang)工(gong)(gong)(gong)程

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素土夯填，夯實(shi)機(ji)械為2T強夯機(ji)，人工回填。

依據試驗室出具的素土(tu)擊實報(bao)告(gao)控制現場含水率。

夯實機械就位后(hou)，夯錘對準孔(kong)心，先夯實孔(kong)底2次(ci)，再用(yong)黃土進行(xing)人工回(hui)填，每填入0.5m3 土料(liao)，夯擊3次(ci)，重錘提(ti)升(sheng)高度5m。依此從下往上進行(xing)，單樁(zhuang)施(shi)工過(guo)程中，做(zuo)好填料(liao)量(liang)，成樁(zhuang)時(shi)間記錄。

樁(zhuang)基檢(jian)測(ce).由建設單(dan)位委托的(de)(de)符合(he)相關資質和(he)要求的(de)(de)檢(jian)測(ce)單(dan)位進行樁(zhuang)基檢(jian)測(ce)，并(bing)出具(ju)合(he)法(fa)、有效的(de)(de)檢(jian)測(ce)報(bao)告。

素土(tu)(tu)擠密(mi)樁施工(gong)質(zhi)量標準:樁位(wei)平面(mian)位(wei)置誤差(cha)70mm內。定(ding)位(wei)放(fang)線后機(ji)械成(cheng)孔，檢(jian)查(cha)成(cheng)孔深(shen)度是(shi)否滿足要求，機(ji)械配合人工(gong)分層回填(tian)，夯(hang)填(tian)時重(zhong)錘提升(sheng)高度為5m，允許誤差(cha)-300mm。回填(tian)土(tu)(tu)選用黃土(tu)(tu)，有機(ji)料不得超過3%，土(tu)(tu)徑不大于15mm。