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Graded dry drilling hole-forming dry sealing method for drilling pile rotary drilling rig
The invention discloses a drilling pile rotary drilling rig grading dry drilling pore-forming dry sealing method, and relates to the field of engineering construction, the method comprises the following steps: building a main pier foundation construction platform, and using the built main pier foundation construction platform as a drilling platform to carry out wall protection construction; the steel casing is hoisted and turned over, so that the center of the steel casing is aligned with the pile position center of the pile foundation, and the steel casing is installed; a pile foundation rock stratum is reinforced based on a sleeve valve pipe grouting technology, a rotary drilling rig adopts a staged circulating hole expanding and forming mode, the center of a pile position is aligned to drill to the designed pile bottom elevation, and the hole pattern of an obtained drill hole is detected; and a reinforcement cage is arranged in the drill hole, and concrete pouring is conducted in the drill hole through a buffer plug guide pipe method concrete dry sealing self-compacting technology. The method can effectively solve the problems of pile foundation chambering, large drill bit consumption, incapability of confirming hole forming quality and low pile foundation pile forming quality.
本发明公开了一种钻孔桩旋挖钻机分级干钻成孔干封方法，涉及工程施工领域，该方法包括搭建主墩基础施工平台，并将搭建的主墩基础施工平台作为钻孔平台，进行护壁施工；吊装钢护筒并进行翻转，以使钢护筒中心对准桩基的桩位中心，进行钢护筒的安装；基于袖阀管注浆工艺对桩基岩层进行加固，旋挖钻机采用分级循环扩孔成孔方式，对准桩位中心钻进至设计桩底标高，并对得到钻孔的孔型进行检测；在钻孔内下设钢筋笼，并采用缓冲塞导管法混凝土干封自密实工艺在钻孔内进行混凝土灌注。本发明能够有效解决桩基扩孔、钻头消耗量大、成孔质量无法确认以及桩基础成桩质量的问题。
Graded dry drilling hole-forming dry sealing method for drilling pile rotary drilling rig
The invention discloses a drilling pile rotary drilling rig grading dry drilling pore-forming dry sealing method, and relates to the field of engineering construction, the method comprises the following steps: building a main pier foundation construction platform, and using the built main pier foundation construction platform as a drilling platform to carry out wall protection construction; the steel casing is hoisted and turned over, so that the center of the steel casing is aligned with the pile position center of the pile foundation, and the steel casing is installed; a pile foundation rock stratum is reinforced based on a sleeve valve pipe grouting technology, a rotary drilling rig adopts a staged circulating hole expanding and forming mode, the center of a pile position is aligned to drill to the designed pile bottom elevation, and the hole pattern of an obtained drill hole is detected; and a reinforcement cage is arranged in the drill hole, and concrete pouring is conducted in the drill hole through a buffer plug guide pipe method concrete dry sealing self-compacting technology. The method can effectively solve the problems of pile foundation chambering, large drill bit consumption, incapability of confirming hole forming quality and low pile foundation pile forming quality.
本发明公开了一种钻孔桩旋挖钻机分级干钻成孔干封方法，涉及工程施工领域，该方法包括搭建主墩基础施工平台，并将搭建的主墩基础施工平台作为钻孔平台，进行护壁施工；吊装钢护筒并进行翻转，以使钢护筒中心对准桩基的桩位中心，进行钢护筒的安装；基于袖阀管注浆工艺对桩基岩层进行加固，旋挖钻机采用分级循环扩孔成孔方式，对准桩位中心钻进至设计桩底标高，并对得到钻孔的孔型进行检测；在钻孔内下设钢筋笼，并采用缓冲塞导管法混凝土干封自密实工艺在钻孔内进行混凝土灌注。本发明能够有效解决桩基扩孔、钻头消耗量大、成孔质量无法确认以及桩基础成桩质量的问题。
Graded dry drilling hole-forming dry sealing method for drilling pile rotary drilling rig
一种钻孔桩旋挖钻机分级干钻成孔干封方法
ZHAO ZILONG (author) / BAI XIAOMING (author) / LI YANZHE (author) / LIN XIDI (author) / LI XIN (author) / ZHAO WANCHAO (author) / WU YI (author) / LIU HENGZHU (author) / LIANG JINFENG (author)
2024-03-08
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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