A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Large-diameter super-long pile foundation with super-long permanent steel casing and construction method
The invention relates to a large-diameter super-long pile foundation with a super-long permanent steel casing and a construction method. The construction method comprises the following steps: manufacturing components; the steel casing is machined and shaped, and butt-joint supports are assembled; manufacturing a steel casing; rigid rods are connected in series with stiffening supporting frames to be spliced; assembling the steel casing immersed light steel bracket; a steel casing perpendicularity auxiliary adjusting device is installed; hoisting an outer steel casing; mounting an operation platform; lowering an inner steel casing; the double steel casings assist in pile foundation rotary drilling and hole forming; and pouring the pile foundation. The method has the beneficial effects that on the basis of a conventional steel casing retaining wall auxiliary hole-forming construction process, the steel casing capable of being turned over is additionally arranged, the inner retaining wall, the outer retaining wall and an isolation area between the inner retaining wall and the outer retaining wall are utilized, the protection capacity of a convection sand stratum is greatly improved, and construction safety is guaranteed; the steel casing sinking light steel support can serve as a lowering construction platform of the steel casing, perpendicularity adjustment in the lowering process of the steel casing can be achieved through the arc supporting plate, and the steel casing sinking construction efficiency is greatly improved.
本发明涉及一种超长永久钢护筒大直径超长桩基及施工方法，包括以下步骤：构件制作；钢护筒加工定型化对接支架拼装；钢护筒制作；刚性杆串联加劲撑架拼装；钢护筒沉放轻型钢支架拼装；安装钢护筒垂直度辅助调整装置；吊装外钢护筒；操作平台安装；下放内钢护筒；双钢护筒辅助桩基旋挖成孔；浇筑桩基。本发明的有益效果是：在常规钢护筒护壁辅助成孔施工工艺的基础上，增加一道可周转钢护筒，利用内外护壁及其中间的隔绝区，大大提高对流砂地层的防护能力，保证了施工安全；钢护筒沉放轻型钢支架既可以作为钢护筒的下放施工平台，又可以利用弧托板实现钢护筒下放过程中垂直度调整，大大提高了钢护筒沉放的施工效率。
Large-diameter super-long pile foundation with super-long permanent steel casing and construction method
The invention relates to a large-diameter super-long pile foundation with a super-long permanent steel casing and a construction method. The construction method comprises the following steps: manufacturing components; the steel casing is machined and shaped, and butt-joint supports are assembled; manufacturing a steel casing; rigid rods are connected in series with stiffening supporting frames to be spliced; assembling the steel casing immersed light steel bracket; a steel casing perpendicularity auxiliary adjusting device is installed; hoisting an outer steel casing; mounting an operation platform; lowering an inner steel casing; the double steel casings assist in pile foundation rotary drilling and hole forming; and pouring the pile foundation. The method has the beneficial effects that on the basis of a conventional steel casing retaining wall auxiliary hole-forming construction process, the steel casing capable of being turned over is additionally arranged, the inner retaining wall, the outer retaining wall and an isolation area between the inner retaining wall and the outer retaining wall are utilized, the protection capacity of a convection sand stratum is greatly improved, and construction safety is guaranteed; the steel casing sinking light steel support can serve as a lowering construction platform of the steel casing, perpendicularity adjustment in the lowering process of the steel casing can be achieved through the arc supporting plate, and the steel casing sinking construction efficiency is greatly improved.
本发明涉及一种超长永久钢护筒大直径超长桩基及施工方法，包括以下步骤：构件制作；钢护筒加工定型化对接支架拼装；钢护筒制作；刚性杆串联加劲撑架拼装；钢护筒沉放轻型钢支架拼装；安装钢护筒垂直度辅助调整装置；吊装外钢护筒；操作平台安装；下放内钢护筒；双钢护筒辅助桩基旋挖成孔；浇筑桩基。本发明的有益效果是：在常规钢护筒护壁辅助成孔施工工艺的基础上，增加一道可周转钢护筒，利用内外护壁及其中间的隔绝区，大大提高对流砂地层的防护能力，保证了施工安全；钢护筒沉放轻型钢支架既可以作为钢护筒的下放施工平台，又可以利用弧托板实现钢护筒下放过程中垂直度调整，大大提高了钢护筒沉放的施工效率。
Large-diameter super-long pile foundation with super-long permanent steel casing and construction method
超长永久钢护筒大直径超长桩基及施工方法
SHI HUAIYUAN (author) / CHENG TAO (author) / CUI JIAN (author) / WEI MING (author) / JING HANLIN (author)
2024-06-14
Patent
Electronic Resource
Chinese
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