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A platform for research: civil engineering, architecture and urbanism
Long spiral cast-in-place pile construction process
The invention discloses a long spiral cast-in-place pile construction process which includes the steps that step one, a long spiral pile machine is used for spirally and rotationally cutting a soil body downwards till a drill rod reaches a pile bottom elevation designed for construction; step two, prepared slurry is pumped through the drill rod of the long spiral pile machine, and the drill rod is lifted upwards while pumping the slurry till the bottom of the drill rod reaches the ground; step three, the long spiral pile machine moves, the steps are repeated, and hole-forming drilling process procedures of a next pile is carried out; and step four, a reinforcement cage is put down into a pile-formed hole where the slurry is pumped through a crane, and then concrete is poured to a pile top elevation of a construction design. According to the long spiral cast-in-place pile construction process, by pumping the prepared slurry into the pile-formed hole for protecting a wall, the pressure of surrounding soil is balanced, hole collapse is not likely to happen, the long spiral pile machine can continuously form holes, and the construction efficiency is greatly improved; the reinforcement cage is adjusted from a rear position to a front position, so that quality is guaranteed; and meanwhile, only common concrete is poured, so that cost is reduced, the multiple pile-formed holes can be poured together, and construction time is saved.
本发明公开了一种长螺旋灌注桩施工工艺，包括步骤一，利用长螺旋桩机螺旋向下旋转切削土体，直至钻杆到达施工设计的桩底标高；步骤二，利用长螺旋桩机的钻杆泵送调配好的泥浆，钻杆边向上提升边泵送泥浆，直至钻杆的底部到达地面；步骤三，长螺旋桩机移位，重复上述步骤，进入下一根桩的成孔钻进工艺流程中；步骤四，利用吊车向泵送过泥浆的桩成孔下放钢筋笼，再灌注混凝土至施工设计的桩顶标高本发明通过向桩成孔内泵送调配好的泥浆护壁，来平衡周围土体压力，不易塌孔，长螺旋桩机可以不停的成孔，施工效率大幅度提升；钢筋笼由后置调整为先置，保证了质量，同时灌注只普通混凝土，成本降低，还可以多根桩成孔一起灌注，节约施工时间。
Long spiral cast-in-place pile construction process
The invention discloses a long spiral cast-in-place pile construction process which includes the steps that step one, a long spiral pile machine is used for spirally and rotationally cutting a soil body downwards till a drill rod reaches a pile bottom elevation designed for construction; step two, prepared slurry is pumped through the drill rod of the long spiral pile machine, and the drill rod is lifted upwards while pumping the slurry till the bottom of the drill rod reaches the ground; step three, the long spiral pile machine moves, the steps are repeated, and hole-forming drilling process procedures of a next pile is carried out; and step four, a reinforcement cage is put down into a pile-formed hole where the slurry is pumped through a crane, and then concrete is poured to a pile top elevation of a construction design. According to the long spiral cast-in-place pile construction process, by pumping the prepared slurry into the pile-formed hole for protecting a wall, the pressure of surrounding soil is balanced, hole collapse is not likely to happen, the long spiral pile machine can continuously form holes, and the construction efficiency is greatly improved; the reinforcement cage is adjusted from a rear position to a front position, so that quality is guaranteed; and meanwhile, only common concrete is poured, so that cost is reduced, the multiple pile-formed holes can be poured together, and construction time is saved.
本发明公开了一种长螺旋灌注桩施工工艺，包括步骤一，利用长螺旋桩机螺旋向下旋转切削土体，直至钻杆到达施工设计的桩底标高；步骤二，利用长螺旋桩机的钻杆泵送调配好的泥浆，钻杆边向上提升边泵送泥浆，直至钻杆的底部到达地面；步骤三，长螺旋桩机移位，重复上述步骤，进入下一根桩的成孔钻进工艺流程中；步骤四，利用吊车向泵送过泥浆的桩成孔下放钢筋笼，再灌注混凝土至施工设计的桩顶标高本发明通过向桩成孔内泵送调配好的泥浆护壁，来平衡周围土体压力，不易塌孔，长螺旋桩机可以不停的成孔，施工效率大幅度提升；钢筋笼由后置调整为先置，保证了质量，同时灌注只普通混凝土，成本降低，还可以多根桩成孔一起灌注，节约施工时间。
Long spiral cast-in-place pile construction process
一种长螺旋灌注桩施工工艺
TIAN JINGSHANG (author) / CAO HAIBIN (author) / PAN YIQI (author) / LI XIKUN (author) / ZHAO MING (author) / ZHANG YONG (author) / HUANG TINGXIN (author) / WANG QIAN (author)
2021-07-09
Patent
Electronic Resource
Chinese
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