Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Grading hole-forming construction method for rotary excavating cast-in-place pile
The invention discloses a grading hole-forming construction method for a rotary excavating cast-in-place pile. The grading hole-forming construction method comprises the following steps that a pile casing is buried, the inner diameter of the pile casing is larger than the designed hole diameter of a rotary excavating cast-in-place pile hole, and the upper end face of the pile casing is higher than the ground; a rotary drilling machine is used for taking soil in the pile casing to form a hole, and the hole diameter is gradually enlarged through multiple times of soil taking till the designed hole diameter is achieved; and disintegrating slag in the rotary excavating cast-in-place pile hole is cleared away. According to the grading hole-forming construction method for the rotary excavating cast-in-place pile, the requirements for the power and the torque of the rotary excavating machine can be reduced, and the equipment cost can be reduced.
本发明公开了一种旋挖灌注桩分级成孔施工方法，包括以下步骤：埋设护筒，护筒的内径大于旋挖灌注桩孔的设计孔径，护筒的上端面高于地面；利用旋挖机在护筒内取土成孔，并通过多次取土将孔径逐渐扩大，直至达到设计孔径；清理旋挖灌注桩孔中的碎渣。本发明的旋挖灌注桩分级成孔施工方法能够降低对旋挖机的功率和扭矩的要求，有利于降低设备成本。
Grading hole-forming construction method for rotary excavating cast-in-place pile
The invention discloses a grading hole-forming construction method for a rotary excavating cast-in-place pile. The grading hole-forming construction method comprises the following steps that a pile casing is buried, the inner diameter of the pile casing is larger than the designed hole diameter of a rotary excavating cast-in-place pile hole, and the upper end face of the pile casing is higher than the ground; a rotary drilling machine is used for taking soil in the pile casing to form a hole, and the hole diameter is gradually enlarged through multiple times of soil taking till the designed hole diameter is achieved; and disintegrating slag in the rotary excavating cast-in-place pile hole is cleared away. According to the grading hole-forming construction method for the rotary excavating cast-in-place pile, the requirements for the power and the torque of the rotary excavating machine can be reduced, and the equipment cost can be reduced.
本发明公开了一种旋挖灌注桩分级成孔施工方法，包括以下步骤：埋设护筒，护筒的内径大于旋挖灌注桩孔的设计孔径，护筒的上端面高于地面；利用旋挖机在护筒内取土成孔，并通过多次取土将孔径逐渐扩大，直至达到设计孔径；清理旋挖灌注桩孔中的碎渣。本发明的旋挖灌注桩分级成孔施工方法能够降低对旋挖机的功率和扭矩的要求，有利于降低设备成本。
Grading hole-forming construction method for rotary excavating cast-in-place pile
旋挖灌注桩分级成孔施工方法
HUANG JIANYONG (Autor:in) / ZHAO HENGYANG (Autor:in) / CHE MINGSHENG (Autor:in) / WANG HAOYU (Autor:in) / CHEN JIANLIN (Autor:in) / WANG GANG (Autor:in) / MA PEIXUAN (Autor:in) / YU XIAOYI (Autor:in) / WEN SHAOTONG (Autor:in)
17.09.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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