Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
End support type thread core composite pile and construction device and method for end support type thread core composite pile
The invention discloses an end support type thread core composite pile and a construction device and method for the end support type thread core composite pile. The composite pile comprises a pile body, a bottom end support body and an inner core pile. The construction device comprises a pile forming device and a pile pressing device. A drill rod of the pile forming device is provided with a grouting channel connected with a grouting device, and a rod body is provided with a plurality of grouting holes connected with the grouting device. A plurality of blades are arranged on the outer side wall of the rod body from top to bottom and are provided with grouting openings communicated with the grouting channel. A drill bit is provided with nozzles correspondingly communicated with the grouting holes. During construction, drilling is conducted through a drill, and cement mortar is conveyed along the grouting holes and sprayed out from the nozzles of the drill bit to form a pile bottom end support body. The grouting holes are closed, the grouting channel is opened, the cement mortar is sprayed out from the grouting openings, the drill rod is lifted at a constant speed, construction of a single pile body is completed, and finally the core pile is pressed into the completed pile body in the axial direction. According to the composite bearing pile, the vertical bearing force of the single pile is obviously improved, the designed pile length can be reduced, and the construction cost is reduced.
End support type thread core composite pile and construction device and method for end support type thread core composite pile
The invention discloses an end support type thread core composite pile and a construction device and method for the end support type thread core composite pile. The composite pile comprises a pile body, a bottom end support body and an inner core pile. The construction device comprises a pile forming device and a pile pressing device. A drill rod of the pile forming device is provided with a grouting channel connected with a grouting device, and a rod body is provided with a plurality of grouting holes connected with the grouting device. A plurality of blades are arranged on the outer side wall of the rod body from top to bottom and are provided with grouting openings communicated with the grouting channel. A drill bit is provided with nozzles correspondingly communicated with the grouting holes. During construction, drilling is conducted through a drill, and cement mortar is conveyed along the grouting holes and sprayed out from the nozzles of the drill bit to form a pile bottom end support body. The grouting holes are closed, the grouting channel is opened, the cement mortar is sprayed out from the grouting openings, the drill rod is lifted at a constant speed, construction of a single pile body is completed, and finally the core pile is pressed into the completed pile body in the axial direction. According to the composite bearing pile, the vertical bearing force of the single pile is obviously improved, the designed pile length can be reduced, and the construction cost is reduced.
End support type thread core composite pile and construction device and method for end support type thread core composite pile
JIANG GUOHUA (Autor:in)
20.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Self-healing type spiral pile core stiff composite pile and pile forming method
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2023
Taper thread expanded support pile structure and application process thereof
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2018
Europäisches Patentamt | 2019