Constructing process of cast-in-situ bored piles

Abstract

The invention relates to a constructing process of cast-in-situ bored piles, and belongs to the technical field of building construction. According to the technical scheme, the constructing process ischaracterized by including the following steps of S1, making a preparation for construction, wherein a construction site is leveled and firmly compacted, and a road bed plate is laid at an operationposition of a drilling machine; S2, burying pile casings, wherein the soil within the burying depth range of the pile casings at pore positions are dug out through a rotary excavating drill bit, the pile casings are directly pressed into soil after being hung in place, the outer wall of each pile casing is axially and fixedly provided with a plurality of reinforcing pieces, the reinforcing piecesare evenly distributed in the circumferential direction of the pile casings, loam is firmly compacted outside the pile casings, and the height of water heads in the pile casings is 1.0-1.5 m; S3, putting the drilling machine in position, wherein the drilling machine is fixed to the road bed plate; S4, performing drilling, wherein a drill stem slowly and continuously operates during bore forming construction, and static slurry is adopted for protecting the walls in the drilling process; S5, putting down a reinforcement cage, wherein the bores are cleaned first, and then the reinforcement cage is slowly put down section by section at a constant speed; and S6, pouring cement, wherein the cement is poured continuously through a guide pipe method, and the effect of improving the burying stability of the pile casings is realized.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction technology of bored piles. Background technique [0002] The cast-in-place pile is a pile made by first drilling the construction ground, pouring concrete or reinforced concrete into the hole and allowing it to solidify. [0003] The existing construction technology of cast-in-situ piles is to level the construction site first, prepare mud, then bury the casing at the hole position, then install and position the drilling rig, and carry out drilling. After the drilling is completed, the hole needs to be cleaned , then lower the reinforcement cage, and finally pour concrete. [0004] The above-mentioned existing technical solutions have the following defects: for areas with loose soil, the soil layer is easily deformed by force, which makes the embedment of the casing not stable enough, and may tilt or shift during later construction, resulting in the ...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: for areas with loose soil, the soil layer is easily deformed by force, which makes the embedment of the casing not stable enough, and may tilt or shift during later construction, resulting in the deviation of the drilling direction , affect the construction quality, or even fail to construct

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