擠(ji)(ji)(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)基施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，灰土(tu)擠(ji)(ji)(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，環保擠(ji)(ji)(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，30米灰土(tu)擠(ji)(ji)(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，水(shui)泥土(tu)擠(ji)(ji)(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，素土(tu)擠(ji)(ji)(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，夯(hang)擴(kuo)擠(ji)(ji)(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，沉管擠(ji)(ji)(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，強夯(hang)地(di)基施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，碎石擠(ji)(ji)(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，擠(ji)(ji)(ji)(ji)密(mi)(mi)(mi)(mi)(mi)螺紋(wen)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，鉆(zhan)孔(kong)灌注(zhu)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，軟土(tu)地(di)基施(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(si)主(zhu)營：擠(ji)(ji)(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，擠(ji)(ji)(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)工(gong)(gong)(gong)(gong)程(cheng)

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素土擠密樁施工工藝

1、定位放線：

① 坐標投測

依據(ju)建設單位提供的(de)坐標點用全(quan)站儀(yi)或GPS進(jin)行工程定位，在基(ji)(ji)坑上邊選擇可保(bao)留位置埋設、固定少4個控(kong)制點，東西、南北方向各兩個點，19米(mi)灰土(tu)擠(ji)密樁施(shi)工，并在基(ji)(ji)坑底部施(shi)放出樓的(de)四條周邊軸線，打入木樁并釘(ding)小鐵釘(ding)，地面(mian)以上外(wai)漏30～50cm。

② 高程投測

依據建(jian)設單位(wei)提(ti)供的(de)高程控制(zhi)(zhi)點(dian)用水準儀在(zai)基(ji)(ji)坑周邊制(zhi)(zhi)定出長期(qi)保留的(de)樓(lou)的(de)±0.000，依此在(zai)樓(lou)基(ji)(ji)坑四周坑壁上(shang)釘(ding)鋼(gang)筋(jin)頭，做出基(ji)(ji)坑高程控制(zhi)(zhi)點(dian)。

③ 樁位放線

依據基(ji)坑底部四條邊軸線(xian)按照(zhao)圖紙設計樁間(jian)距、排(pai)距定(ding)出樁位(wei)，在(zai)樁心釘入鐵釬，并做(zuo)白灰(hui)明示。

2、擠密樁成孔

成(cheng)孔施工前，應先制定(ding)出成(cheng)孔路線(xian)圖(tu)，并對所有樁進行編號。

依據圖紙設計(ji)選用成(cheng)孔機械(xie)進(jin)行施工，并保證成(cheng)孔桿豎直，對準(zhun)樁心，在成(cheng)孔桿頂端位置(zhi)用紅油漆(qi)畫出設計(ji)樁深，以控制成(cheng)孔深度滿足(zu)設計(ji)要求。

成(cheng)孔過程，采(cai)用由外向(xiang)內，隔排跳(tiao)打進行。

擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)基(ji)施工(gong)(gong)(gong)，灰土擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)施工(gong)(gong)(gong)，環保(bao)擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)施工(gong)(gong)(gong)，水泥土擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)施工(gong)(gong)(gong)，素土擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)施工(gong)(gong)(gong)，夯擴擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)施工(gong)(gong)(gong)，沉管擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)施工(gong)(gong)(gong)，強夯地(di)基(ji)施工(gong)(gong)(gong)，碎(sui)石擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)施工(gong)(gong)(gong)，擠(ji)(ji)(ji)密(mi)(mi)螺紋樁(zhuang)施工(gong)(gong)(gong)，鉆孔灌(guan)注樁(zhuang)施工(gong)(gong)(gong)，軟土地(di)基(ji)施工(gong)(gong)(gong)，灰土樁(zhuang)施工(gong)(gong)(gong)，我公司(si)主(zhu)營：擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)施工(gong)(gong)(gong)，擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)工(gong)(gong)(gong)程(cheng)

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成孔偏斜

成孔(kong)偏斜(xie)是指成孔(kong)壁樁孔(kong)出現(xian)較大垂直偏差或彎曲。

其造成原因(yin)和(he)處理方法主要有：

施工(gong)現場地面軟弱或軟硬不(bu)(bu)均(jun)勻(yun)，在支架(jia)上鉆孔時，支架(jia)的(de)承載力(li)不(bu)(bu)足，發(fa)生(sheng)不(bu)(bu)均(jun)勻(yun)沉(chen)降，導致(zhi)鉆桿(gan)不(bu)(bu)垂直(zhi)，造成成孔偏斜。為避免事故發(fa)生(sheng)，場地必(bi)(bi)須(xu)夯(hang)實平整(zheng)，孝義灰土(tu)擠密樁(zhuang)施工(gong)，軌道及枕木宜均(jun)勻(yun)著地，支架(jia)的(de)承載力(li)應(ying)滿足要(yao)求(qiu)，在發(fa)生(sheng)不(bu)(bu)均(jun)勻(yun)沉(chen)降時，必(bi)(bi)須(xu)隨時調整(zheng)。 850G工(gong)程資料

未做好鉆(zhan)(zhan)機安裝(zhuang)工作，是造成(cheng)成(cheng)孔偏斜的(de)隱患(huan)。因此要(yao)求安裝(zhuang)地(di)基穩固。鉆(zhan)(zhan)機就(jiu)位(wei)(wei)時，應使(shi)(shi)轉盤(pan)，底座水平(ping)，使(shi)(shi)天輪的(de)輪緣、鉆(zhan)(zhan)桿(gan)的(de)卡盤(pan)和護筒的(de)中心(xin)在(zai)同一垂直(zhi)線上，并(bing)在(zai)鉆(zhan)(zhan)進(jin)過程中防止位(wei)(wei)移，在(zai)不均勻地(di)層(ceng)中鉆(zhan)(zhan)孔時，采用自重(zhong)大(da)、鉆(zhan)(zhan)桿(gan)剛度(du)大(da)的(de)鉆(zhan)(zhan)機。

遇到土層呈斜狀分布或土層中夾有(you)大的(de)孤(gu)石(shi)或其它硬(ying)物等情形。鉆速要(yao)加慢檔(dang)。另外安裝(zhuang)導正裝(zhuang)置也是(shi)防止孔斜的(de)簡單有(you)效的(de)方法。

樁底沉渣量過多

對(dui)摩擦樁(zhuang)來說，由于其受力(li)機(ji)理是(shi)通過樁(zhuang)表(biao)面和周(zhou)圍土壤之間(jian)的(de)磨(mo)擦力(li)或依附力(li)，逐漸把荷(he)載(zai)從樁(zhuang)頂傳遞到周(zhou)圍的(de)土體中(zhong)，如(ru)果在設計中(zhong)端部反力(li)不大，端部的(de)沉(chen)渣量(liang)對(dui)樁(zhuang)承(cheng)載(zai)力(li)亦影響不大；而對(dui)于承(cheng)載(zai)樁(zhuang)來說，如(ru)果沉(chen)渣量(liang)過大，勢必造(zao)成(cheng)樁(zhuang)受荷(he)時發生大量(liang)沉(chen)降，同(tong)樣使樁(zhuang)的(de)承(cheng)載(zai)力(li)失效(xiao)，因此鉆孔灌(guan)注樁(zhuang)的(de)沉(chen)渣量(liang)檢查是(shi)施工控制中(zhong)的(de)一項關(guan)鍵(jian)工作。

擠(ji)(ji)(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)基(ji)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，灰土(tu)(tu)(tu)擠(ji)(ji)(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，環保擠(ji)(ji)(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，水泥土(tu)(tu)(tu)擠(ji)(ji)(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，素土(tu)(tu)(tu)擠(ji)(ji)(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，灰土(tu)(tu)(tu)擠(ji)(ji)(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)隊，夯擴擠(ji)(ji)(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，沉管(guan)擠(ji)(ji)(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，強(qiang)夯地基(ji)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，碎石擠(ji)(ji)(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，擠(ji)(ji)(ji)(ji)(ji)密(mi)(mi)(mi)螺紋樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，鉆(zhan)孔灌注(zhu)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，軟土(tu)(tu)(tu)地基(ji)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，灰土(tu)(tu)(tu)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，我公司主營：擠(ji)(ji)(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，擠(ji)(ji)(ji)(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)工(gong)(gong)(gong)程(cheng)

我們將為你提供詳細(xi)的流行資訊，精(jing)彩(cai)的新聞知識，讓您對產品有更深(shen)的了解

質量控制措施

成孔(kong)時在成孔(kong)桿上用紅油漆(qi)畫出成孔(kong)深(shen)度控制線，目測(ce)成孔(kong)桿是否豎直；

夯填過(guo)程中嚴(yan)格(ge)控制和選用素(su)土(tu)，對于(yu)粒徑過(guo)大的可進行篩土(tu)處理。

重錘提(ti)升高(gao)度(du)在鋼絲繩上(shang)做標(biao)記進行高(gao)度(du)控制。

做好單樁施工(gong)記錄，防止(zhi)漏(lou)打。

素土擠密樁遍夯實(shi)完(wan)成后，對基(ji)坑(keng)內樁位、邊軸(zhou)線進(jin)行(xing)復核，重新(xin)校(xiao)正后再進(jin)行(xing)第二(er)遍夯實(shi)施工。

成孔(kong)(kong)過程(cheng)中，如(ru)發現(xian)有(you)縮孔(kong)(kong)現(xian)象要(yao)及時與建設單位及設計(ji)院取(qu)得聯系。