A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a construction method for a small-diameter pile composite foundation. The construction method is characterized in that the construction steps comprises that firstly, construction preparation is conducted; secondly, a pile casing is embedded; thirdly, a drilling machine is arranged in place; fourthly, pore-forming is carried out; fifthly, counterboring is carried out, after drilling of a casing tube is in place, a drilling rod can be lowered to carry out counterboring, and the lowering depth of the drilling rod is greater than the depth of the casing tube; when the drilling rod is lowered to the end of the casing tube, the counterboring can be carried out; according to the counterboring, the aim of the counterboring is achieved by using high-pressure water sprayed from a nozzle of the drill head and rotatably utilizing hydraulic power to carry out earth cutting; sixthly, crushed stone aggregate is filled; seventhly, cement paste equipment is used; eighthly, initial grouting is carried out; ninthly, second-time grouting is carried out; tenthly, treatment of a pile head is carried out; eleventhly, the construction of a mattress layer is carried out. According to the construction method for the small-diameter pile composite foundation, the economic benefit and the social benefit are prominent.
The invention discloses a construction method for a small-diameter pile composite foundation. The construction method is characterized in that the construction steps comprises that firstly, construction preparation is conducted; secondly, a pile casing is embedded; thirdly, a drilling machine is arranged in place; fourthly, pore-forming is carried out; fifthly, counterboring is carried out, after drilling of a casing tube is in place, a drilling rod can be lowered to carry out counterboring, and the lowering depth of the drilling rod is greater than the depth of the casing tube; when the drilling rod is lowered to the end of the casing tube, the counterboring can be carried out; according to the counterboring, the aim of the counterboring is achieved by using high-pressure water sprayed from a nozzle of the drill head and rotatably utilizing hydraulic power to carry out earth cutting; sixthly, crushed stone aggregate is filled; seventhly, cement paste equipment is used; eighthly, initial grouting is carried out; ninthly, second-time grouting is carried out; tenthly, treatment of a pile head is carried out; eleventhly, the construction of a mattress layer is carried out. According to the construction method for the small-diameter pile composite foundation, the economic benefit and the social benefit are prominent.
Construction method for small-diameter pile composite foundation
ZHU KUI (author)
2015-06-17
Patent
Electronic Resource
English
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