Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Drilling, hole cleaning and pile forming method for large-diameter rock-socketed cast-in-place pile of super-thick covering layer
The invention relates to the technical field of rock-socketed cast-in-place piles, and discloses a drilling, hole cleaning and pile forming method for a large-diameter rock-socketed cast-in-place pile of a super-thick covering layer. The drilling, hole cleaning and pile forming method comprises the following construction steps that (1) a pile casing is buried in a covering layer; (2) a sedimentation tank and a plurality of stages of mud pits which are sequentially arranged and communicate are arranged; (3) a drill bit starts to drill a set depth in the covering layer, and a gravel pump is started to conduct pumping reverse circulation hole cleaning; (4) the drill bit sequentially drills through the covering layer and the rock stratum; (5) a steel reinforcement cage and a pouring guide pipe are put down in sequence, and gas lift reverse circulation hole cleaning is carried out; and (6) concrete is poured. The drilling, hole cleaning and pile forming method for the large-diameter rock-socketed cast-in-place pile with the super-thick covering layer has the following advantages that the wall protection effect of mud is good, the deslagging efficiency is high, the gravel pump is adopted for the pumping reverse circulation hole cleaning, the deslagging efficiency is high, the drilling speed is high, the rock stratum drilling capacity is high, the full-hydraulic reverse circulation drilling machine has a hydraulic pressurization effect, the reverse circulation hole cleaning effect is good, the pile foundation construction quality is guaranteed, and the environment-friendly effect is good.
本发明涉及嵌岩灌注桩的技术领域，公开了超厚覆盖层大直径嵌岩灌注桩钻进与清孔成桩方法，包括以下施工步骤：1)、在覆盖层中埋设护筒；2)、设置沉淀池以及多级依序排布连通的泥浆池；3)、钻头开始在覆盖层内钻进设定深度，启动砂石泵进行泵吸反循环清孔；4)、钻头依序钻过覆盖层以及岩层；5)、依序下入钢筋笼以及灌注导管，进行气举反循环清孔；6)、灌注混凝土；本发明提供的超厚覆盖层大直径嵌岩灌注桩钻进与清孔成桩方法，具有以下优点：泥浆护壁效果好；出渣效率高，采用砂石泵泵吸反循环清孔，出渣效率高，钻进速度快；岩层钻凿能力强，全液压反循环钻机具有液压加压作用；反循环清孔效果好，保证桩基施工质量；绿色环保效果好。
Drilling, hole cleaning and pile forming method for large-diameter rock-socketed cast-in-place pile of super-thick covering layer
The invention relates to the technical field of rock-socketed cast-in-place piles, and discloses a drilling, hole cleaning and pile forming method for a large-diameter rock-socketed cast-in-place pile of a super-thick covering layer. The drilling, hole cleaning and pile forming method comprises the following construction steps that (1) a pile casing is buried in a covering layer; (2) a sedimentation tank and a plurality of stages of mud pits which are sequentially arranged and communicate are arranged; (3) a drill bit starts to drill a set depth in the covering layer, and a gravel pump is started to conduct pumping reverse circulation hole cleaning; (4) the drill bit sequentially drills through the covering layer and the rock stratum; (5) a steel reinforcement cage and a pouring guide pipe are put down in sequence, and gas lift reverse circulation hole cleaning is carried out; and (6) concrete is poured. The drilling, hole cleaning and pile forming method for the large-diameter rock-socketed cast-in-place pile with the super-thick covering layer has the following advantages that the wall protection effect of mud is good, the deslagging efficiency is high, the gravel pump is adopted for the pumping reverse circulation hole cleaning, the deslagging efficiency is high, the drilling speed is high, the rock stratum drilling capacity is high, the full-hydraulic reverse circulation drilling machine has a hydraulic pressurization effect, the reverse circulation hole cleaning effect is good, the pile foundation construction quality is guaranteed, and the environment-friendly effect is good.
本发明涉及嵌岩灌注桩的技术领域，公开了超厚覆盖层大直径嵌岩灌注桩钻进与清孔成桩方法，包括以下施工步骤：1)、在覆盖层中埋设护筒；2)、设置沉淀池以及多级依序排布连通的泥浆池；3)、钻头开始在覆盖层内钻进设定深度，启动砂石泵进行泵吸反循环清孔；4)、钻头依序钻过覆盖层以及岩层；5)、依序下入钢筋笼以及灌注导管，进行气举反循环清孔；6)、灌注混凝土；本发明提供的超厚覆盖层大直径嵌岩灌注桩钻进与清孔成桩方法，具有以下优点：泥浆护壁效果好；出渣效率高，采用砂石泵泵吸反循环清孔，出渣效率高，钻进速度快；岩层钻凿能力强，全液压反循环钻机具有液压加压作用；反循环清孔效果好，保证桩基施工质量；绿色环保效果好。
Drilling, hole cleaning and pile forming method for large-diameter rock-socketed cast-in-place pile of super-thick covering layer
超厚覆盖层大直径嵌岩灌注桩钻进与清孔成桩方法
WANG ZHIQUAN (Autor:in) / LI BO (Autor:in) / MO LI (Autor:in) / LEI BIN (Autor:in) / LIN QIANGYOU (Autor:in) / TONG XIN (Autor:in) / WANG JIAN (Autor:in) / LI KAI (Autor:in)
02.11.2021
Patent
Elektronische Ressource
Chinesisch
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