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A platform for research: civil engineering, architecture and urbanism
Complex geological rotary digging hole-forming cast-in-place pile and construction method
The invention relates to a rotary drilling cast-in-place pile for complex geology and a construction method, which adopt a steep terrain riverbed pre-reinforcement technology, and utilize the characteristic of high reliability of a PLC (Programmable Logic Controller) pile cofferdam on a side slope not close to a river bank side to resist the slippage of a soil body at the steep side slope; on the side slope close to the river bank side, the construction speed is increased by utilizing the construction convenience of the steel sheet piles, so that the overall construction efficiency is improved on the basis of ensuring the stability of the soil body of the side slope; a steel casing accurate positioning and sinking technology is used, a plurality of monitoring and deviation rectifying points are arranged on the steel casing, displacement observation and adjustment are carried out on the casing through different observation and deviation rectifying points in the casing sinking construction process, the steel casing construction efficiency on site is improved, and the construction casing installation and positioning accuracy is guaranteed.
本发明涉及一种复杂地质旋挖成孔灌注桩及施工方法，使用地形陡峭河床预加固技术，在非靠近河岸侧的边坡上利用PLC桩围堰可靠性高的特点来抵抗陡峭边坡处的土体滑移，而在靠近河岸侧的边坡上则利用钢板桩的施工便捷性来加快施工速度，从而在保证边坡土体稳固的基础上提高了整体施工效率；使用钢护筒精准定位沉放技术，在钢护筒上设置了数个监测、纠偏点位，在护筒下沉施工的过程中，通过不同观测、纠偏点对护筒进行位移观测及调整，提升了现场的钢护筒施工效率，保证了施工护筒安装定位精度。
Complex geological rotary digging hole-forming cast-in-place pile and construction method
The invention relates to a rotary drilling cast-in-place pile for complex geology and a construction method, which adopt a steep terrain riverbed pre-reinforcement technology, and utilize the characteristic of high reliability of a PLC (Programmable Logic Controller) pile cofferdam on a side slope not close to a river bank side to resist the slippage of a soil body at the steep side slope; on the side slope close to the river bank side, the construction speed is increased by utilizing the construction convenience of the steel sheet piles, so that the overall construction efficiency is improved on the basis of ensuring the stability of the soil body of the side slope; a steel casing accurate positioning and sinking technology is used, a plurality of monitoring and deviation rectifying points are arranged on the steel casing, displacement observation and adjustment are carried out on the casing through different observation and deviation rectifying points in the casing sinking construction process, the steel casing construction efficiency on site is improved, and the construction casing installation and positioning accuracy is guaranteed.
本发明涉及一种复杂地质旋挖成孔灌注桩及施工方法，使用地形陡峭河床预加固技术，在非靠近河岸侧的边坡上利用PLC桩围堰可靠性高的特点来抵抗陡峭边坡处的土体滑移，而在靠近河岸侧的边坡上则利用钢板桩的施工便捷性来加快施工速度，从而在保证边坡土体稳固的基础上提高了整体施工效率；使用钢护筒精准定位沉放技术，在钢护筒上设置了数个监测、纠偏点位，在护筒下沉施工的过程中，通过不同观测、纠偏点对护筒进行位移观测及调整，提升了现场的钢护筒施工效率，保证了施工护筒安装定位精度。
Complex geological rotary digging hole-forming cast-in-place pile and construction method
复杂地质旋挖成孔灌注桩及施工方法
XU WENLING (author) / GAO JINGLU (author) / LIU JIAN (author) / GU GUOSHENG (author) / GUO YINGSONG (author) / YANG JIAN (author) / NI DONGSHENG (author) / LIU YONGGANG (author) / ZHU YUNFENG (author) / XU ZHE (author)
2024-11-22
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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