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钢护桶租赁

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钢护桶租赁

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赣州钢护桶租赁

  钢护桶

  钢(gang)(gang)(gang)护(hu)桶(tong)就是在进行(xing)人工挖孔(kong)(kong)桩的(de)过程(cheng)中,由(you)于(yu)土质不稳定,施(shi)工钢(gang)(gang)(gang)筋混(hun)凝(ning)土护(hu)壁存在较大(da)(da)难度所以(yi)采用钢(gang)(gang)(gang)质的(de)护(hu)壁对(dui)孔(kong)(kong)桩进行(xing)保(bao)(bao)护(hu),防止塌(ta)孔(kong)(kong)避免影响施(shi)工进度及(ji)安全。钢(gang)(gang)(gang)护(hu)筒(tong)就是根据孔(kong)(kong)桩的(de)大(da)(da)小用铁皮箍(gu)成的(de)一个(ge)圆形的(de)两(liang)头都是空的(de)桶(tong)。能稳定孔(kong)(kong)壁,防止坍孔(kong)(kong),还可(ke)以(yi)隔离地表水(shui),导向钻头,固定桩位,保(bao)(bao)护(hu)操作原地面等作用。

  在钻孔灌(guan)注桩中,常(chang)埋(mai)(mai)设钢护(hu)(hu)筒(tong)来定(ding)位(wei)(wei)(wei)(wei)需要钻的桩位(wei)(wei)(wei)(wei)。护(hu)(hu)筒(tong)为钢护(hu)(hu)筒(tong),壁(bi)厚10mm,护(hu)(hu)筒(tong)定(ding)位(wei)(wei)(wei)(wei)时,先以桩位(wei)(wei)(wei)(wei)中心为圆心,根据护(hu)(hu)筒(tong)半径在土上(shang)(shang)定(ding)出(chu)护(hu)(hu)筒(tong)位(wei)(wei)(wei)(wei)置,护(hu)(hu)筒(tong)就位(wei)(wei)(wei)(wei)后,施加压(ya)力(li)将(jiang)护(hu)(hu)筒(tong)埋(mai)(mai)入约50cm。如(ru)下压(ya)困(kun)难,可先将(jiang)孔位(wei)(wei)(wei)(wei)处的土体挖出(chu)一部分(fen),然(ran)后安(an)放护(hu)(hu)筒(tong)埋(mai)(mai)入地下。在埋(mai)(mai)入过程中应检(jian)查护(hu)(hu)筒(tong)是否垂直,若发现(xian)偏斜,应及(ji)时纠正。陆(lu)上(shang)(shang)护(hu)(hu)筒(tong)埋(mai)(mai)放就位(wei)(wei)(wei)(wei)后,将(jiang)护(hu)(hu)筒(tong)外侧用粘(zhan)土回填压(ya)实,以防止(zhi)护(hu)(hu)筒(tong)四(si)周出(chu)现(xian)漏水(shui)现(xian)象,回填厚度约40-45cm,顶(ding)端高度高出(chu)(水(shui)面)地面0.4-0.6m, 筒(tong)位(wei)(wei)(wei)(wei)距(ju)孔心偏差不得大于(yu)50mm。

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