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A platform for research: civil engineering, architecture and urbanism
Construction method of steel pipe carbonization pile composite foundation
The invention relates to a construction method of a steel pipe carbonization pile composite foundation. The construction method comprises the steps that the perpendicularity of a steel pipe stirring core is adjusted; a pile machine and the steel pipe stirring core are connected, the pile machine is started, the steel pipe stirring core is downwards rotated and drilled into the foundation, and meanwhile magnesium oxide is conveyed through the interior of the steel pipe stirring core and sprayed out through a nozzle arranged on the steel pipe stirring core; after the steel pipe stirring core is drilled to the preset depth, the steel pipe stirring core is removed from the pile machine; a breather pipe is inserted into the inner cavity of the steel pipe stirring core, and the other end of the breather pipe is connected to a CO2 gas storage tank; and the pressure valve is opened, and the air injection pressure is adjusted, so that the CO2 gas passes through the interior of the steel pipe stirring core, is diffused into the magnesium oxide stirring pile body through the nozzle and is subjected to carbonization reaction until the carbonized magnesium oxide stirring pile is formed. The pile is high in bearing capacity, economical, efficient, reliable in quality, low-carbon and environment-friendly, can be formed in one step, and meets the requirements of deep and soft foundation reinforcement, economy, high efficiency and CO2 resource utilization.
本发明涉及一种钢管碳化桩复合地基的施工方法，包括步骤：调整钢管搅拌芯的垂直度；连接桩机与钢管搅拌芯，启动桩机，将钢管搅拌芯向下旋转钻进地基，同时通过钢管搅拌芯内部输送氧化镁并由钢管搅拌芯配置的喷嘴喷出；当钢管搅拌芯钻进至预设深度后，将钢管搅拌芯从桩机上拆除；向钢管搅拌芯内腔插入通气管，将通气管另一端连接至CO2储气罐；开启压力阀并调整喷气压力，使CO2气体通过钢管搅拌芯内部并由喷嘴扩散至氧化镁搅拌桩桩体内并发生碳化反应，直至形成碳化氧化镁搅拌桩。它承载力高、经济高效、质量可靠和低碳环保，能够一次成桩，且满足加固深厚软弱地基、经济高效和CO2资源化利用的需求。
Construction method of steel pipe carbonization pile composite foundation
The invention relates to a construction method of a steel pipe carbonization pile composite foundation. The construction method comprises the steps that the perpendicularity of a steel pipe stirring core is adjusted; a pile machine and the steel pipe stirring core are connected, the pile machine is started, the steel pipe stirring core is downwards rotated and drilled into the foundation, and meanwhile magnesium oxide is conveyed through the interior of the steel pipe stirring core and sprayed out through a nozzle arranged on the steel pipe stirring core; after the steel pipe stirring core is drilled to the preset depth, the steel pipe stirring core is removed from the pile machine; a breather pipe is inserted into the inner cavity of the steel pipe stirring core, and the other end of the breather pipe is connected to a CO2 gas storage tank; and the pressure valve is opened, and the air injection pressure is adjusted, so that the CO2 gas passes through the interior of the steel pipe stirring core, is diffused into the magnesium oxide stirring pile body through the nozzle and is subjected to carbonization reaction until the carbonized magnesium oxide stirring pile is formed. The pile is high in bearing capacity, economical, efficient, reliable in quality, low-carbon and environment-friendly, can be formed in one step, and meets the requirements of deep and soft foundation reinforcement, economy, high efficiency and CO2 resource utilization.
本发明涉及一种钢管碳化桩复合地基的施工方法，包括步骤：调整钢管搅拌芯的垂直度；连接桩机与钢管搅拌芯，启动桩机，将钢管搅拌芯向下旋转钻进地基，同时通过钢管搅拌芯内部输送氧化镁并由钢管搅拌芯配置的喷嘴喷出；当钢管搅拌芯钻进至预设深度后，将钢管搅拌芯从桩机上拆除；向钢管搅拌芯内腔插入通气管，将通气管另一端连接至CO2储气罐；开启压力阀并调整喷气压力，使CO2气体通过钢管搅拌芯内部并由喷嘴扩散至氧化镁搅拌桩桩体内并发生碳化反应，直至形成碳化氧化镁搅拌桩。它承载力高、经济高效、质量可靠和低碳环保，能够一次成桩，且满足加固深厚软弱地基、经济高效和CO2资源化利用的需求。
Construction method of steel pipe carbonization pile composite foundation
钢管碳化桩复合地基的施工方法
GAO CHANGHUI (author) / DU GUANGYIN (author) / LIU SONGYU (author) / YANG YONG (author) / ZHUANG ZHONGXUN (author) / WANG CHUANLE (author) / WANG YUXIAO (author)
2023-03-14
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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