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A platform for research: civil engineering, architecture and urbanism
Cast-in-place concrete pipe pile for dumping as well as pile forming tool and construction method of cast-in-place concrete pipe pile
The invention aims to provide a soil-discharging cast-in-place concrete pipe pile and a pile forming tool and a construction method thereof. The pile forming tool comprises a rotating handle, a pile mold outer pipe, a pile mold inner pipe and a spiral annular cutter. The spiral annular cutter spirally surrounds and is fixed to the outer side wall of the pile mold inner pipe. The bottom of the pile mold inner pipe is sawtooth-shaped and can cut into a soil layer foundation conveniently. The top of the pile mold inner pipe is rigidly connected with a rotating handle, the top of the rotating handle is connected with a power device, and the power device is driven to drive the pile mold and the spiral annular cutter to rotate. And after tunneling to a preset depth, the spiral annular cutter is reversely rotated to be separated from the pile mold inner pipe, then the spiral annular cutter and a soil body on the spiral annular cutter are pulled up to the ground surface through a power device to complete soil-squeezing-free hole forming, and finally concrete is poured to form a pile. The construction method is free of environmental pollution in the construction process, small in environmental disturbance, suitable for sandy soil and other hard soil layers, capable of being constructed to a bearing soil layer with high bearing capacity and wide in application range.
本发明的目的是提供一种排土的现浇混凝土管桩及其成桩工具和施工方法，成桩工具包括转把、桩模外管、桩模内管和螺旋环形切刀。螺旋环形切刀螺旋环绕且固定在桩模内管的外侧壁上。桩模内管底部为锯齿形，便于切入土层地基。桩模内管顶部刚性连接转把，转把顶部连接动力装置，驱动动力装置，带动桩模和螺旋环形切刀旋转。当掘进至预定深度后，反向旋转螺旋环形切刀使其与桩模内管分离，再利用动力装置拉升螺旋环形切刀及其上的土体至地表完成无挤土成孔，最后浇筑混凝土成桩。这种施工方法在施工过程中无环境污染、对环境扰动小，且适用于砂土等坚硬土层中，可施工到承载力较高的持力土层，适用范围广。
Cast-in-place concrete pipe pile for dumping as well as pile forming tool and construction method of cast-in-place concrete pipe pile
The invention aims to provide a soil-discharging cast-in-place concrete pipe pile and a pile forming tool and a construction method thereof. The pile forming tool comprises a rotating handle, a pile mold outer pipe, a pile mold inner pipe and a spiral annular cutter. The spiral annular cutter spirally surrounds and is fixed to the outer side wall of the pile mold inner pipe. The bottom of the pile mold inner pipe is sawtooth-shaped and can cut into a soil layer foundation conveniently. The top of the pile mold inner pipe is rigidly connected with a rotating handle, the top of the rotating handle is connected with a power device, and the power device is driven to drive the pile mold and the spiral annular cutter to rotate. And after tunneling to a preset depth, the spiral annular cutter is reversely rotated to be separated from the pile mold inner pipe, then the spiral annular cutter and a soil body on the spiral annular cutter are pulled up to the ground surface through a power device to complete soil-squeezing-free hole forming, and finally concrete is poured to form a pile. The construction method is free of environmental pollution in the construction process, small in environmental disturbance, suitable for sandy soil and other hard soil layers, capable of being constructed to a bearing soil layer with high bearing capacity and wide in application range.
本发明的目的是提供一种排土的现浇混凝土管桩及其成桩工具和施工方法，成桩工具包括转把、桩模外管、桩模内管和螺旋环形切刀。螺旋环形切刀螺旋环绕且固定在桩模内管的外侧壁上。桩模内管底部为锯齿形，便于切入土层地基。桩模内管顶部刚性连接转把，转把顶部连接动力装置，驱动动力装置，带动桩模和螺旋环形切刀旋转。当掘进至预定深度后，反向旋转螺旋环形切刀使其与桩模内管分离，再利用动力装置拉升螺旋环形切刀及其上的土体至地表完成无挤土成孔，最后浇筑混凝土成桩。这种施工方法在施工过程中无环境污染、对环境扰动小，且适用于砂土等坚硬土层中，可施工到承载力较高的持力土层，适用范围广。
Cast-in-place concrete pipe pile for dumping as well as pile forming tool and construction method of cast-in-place concrete pipe pile
一种排土的现浇混凝土管桩及其成桩工具和施工方法
ZHANG RUNHONG (author) / LIU HANLONG (author) / CHEN YUMIN (author) / WU QI (author) / MA KE (author)
2023-10-20
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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