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A platform for research: civil engineering, architecture and urbanism
Anti-skid drill cast-in-place pile foundation in high-sensitivity soft soil area and construction method thereof
The invention discloses an anti-skid drill cast-in-place pile foundation in a high-sensitivity soft soil area and a construction method thereof. The anti-skid drill cast-in-place pile foundation comprises novel steel protecting cylinders, a steel protecting cylinder installing device and a drill cast-in-place pile main body. The drill cast-in-place pile main body comprises common steel protectingcylinders, a steel reinforcement cage and concrete. All the novel steel protecting cylinders and all the common steel protecting cylinders are sequentially connected in a sealed manner from bottom totop. The steel protecting cylinder installing device comprises a suction barrel and a magnetic installing ejection cap. According to the anti-skid drill cast-in-place pile foundation, the novel steelprotecting cylinders with automatic hole pressure adjusting systems are adopted, and thus during the operation stage of the anti-skid drill cast-in-place pile foundation in the high-sensitivity soft soil area, hole water pressure in a periphery soil body of the pile foundation can be adjusted automatically. The suction barrel technology is adopted for installing the steel protecting cylinders, itis ensured that in the construction process, the soil body on the periphery of an anti-skid drill cast-in-place pile is reduced as much as possible, and the liquefaction risk of the soil body on the periphery of the pile foundation during the construction period is effectively reduced. The construction method is safe, reliable, convenient and rapid, and has a wide project application prospect.
本发明公开了一种高灵敏性软土区域抗滑钻孔灌注桩基础及其施工方法，该抗滑钻孔灌注桩基础包括新型钢护筒、钢护筒安装装置和钻孔灌注桩主体；钻孔灌注桩主体包括普通钢护筒、钢筋笼和混凝土；所有新型钢护筒和所有普通钢护筒从下至上依次密封连接；钢护筒安装装置包括吸力桶和磁力安装顶帽；本发明采用带有自动化孔压调节系统的新型钢护筒，可在高灵敏性软土区域的抗滑钻孔灌注桩基础运营阶段自主地调节桩基础外围土体中的孔隙水压力；采用吸力桶技术安装钢护筒，保证在施工过程中尽可能少地扰动抗滑钻孔灌注桩外围的土体，有效地减小桩基础周边土体在施工期间的液化风险；本发明施工方法安全可靠、方便快捷，具有广阔的工程应用前景。
Anti-skid drill cast-in-place pile foundation in high-sensitivity soft soil area and construction method thereof
The invention discloses an anti-skid drill cast-in-place pile foundation in a high-sensitivity soft soil area and a construction method thereof. The anti-skid drill cast-in-place pile foundation comprises novel steel protecting cylinders, a steel protecting cylinder installing device and a drill cast-in-place pile main body. The drill cast-in-place pile main body comprises common steel protectingcylinders, a steel reinforcement cage and concrete. All the novel steel protecting cylinders and all the common steel protecting cylinders are sequentially connected in a sealed manner from bottom totop. The steel protecting cylinder installing device comprises a suction barrel and a magnetic installing ejection cap. According to the anti-skid drill cast-in-place pile foundation, the novel steelprotecting cylinders with automatic hole pressure adjusting systems are adopted, and thus during the operation stage of the anti-skid drill cast-in-place pile foundation in the high-sensitivity soft soil area, hole water pressure in a periphery soil body of the pile foundation can be adjusted automatically. The suction barrel technology is adopted for installing the steel protecting cylinders, itis ensured that in the construction process, the soil body on the periphery of an anti-skid drill cast-in-place pile is reduced as much as possible, and the liquefaction risk of the soil body on the periphery of the pile foundation during the construction period is effectively reduced. The construction method is safe, reliable, convenient and rapid, and has a wide project application prospect.
本发明公开了一种高灵敏性软土区域抗滑钻孔灌注桩基础及其施工方法，该抗滑钻孔灌注桩基础包括新型钢护筒、钢护筒安装装置和钻孔灌注桩主体；钻孔灌注桩主体包括普通钢护筒、钢筋笼和混凝土；所有新型钢护筒和所有普通钢护筒从下至上依次密封连接；钢护筒安装装置包括吸力桶和磁力安装顶帽；本发明采用带有自动化孔压调节系统的新型钢护筒，可在高灵敏性软土区域的抗滑钻孔灌注桩基础运营阶段自主地调节桩基础外围土体中的孔隙水压力；采用吸力桶技术安装钢护筒，保证在施工过程中尽可能少地扰动抗滑钻孔灌注桩外围的土体，有效地减小桩基础周边土体在施工期间的液化风险；本发明施工方法安全可靠、方便快捷，具有广阔的工程应用前景。
Anti-skid drill cast-in-place pile foundation in high-sensitivity soft soil area and construction method thereof
一种高灵敏性软土区域抗滑钻孔灌注桩基础及其施工方法
ZHANG LISHA (author) / WEI XIAO (author) / ZHANG SHIMIN (author) / WEI GANG (author) / WEI XINJIANG (author) / JIANG JIQING (author) / CUI YUNLIANG (author)
2020-04-21
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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