Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Large-diameter static pressure grouting steel pipe pile and construction technology thereof
The invention discloses a large-diameter static pressure grouting steel pipe pile and a construction technology thereof, and relates to the technical field of building engineering construction, the large-diameter static pressure grouting steel pipe pile comprises a lower pile body and an upper pile body, the upper end of the lower pile body is fixedly connected with the lower end of the upper pile body, a pile tip is fixed to the lower end of the lower pile body, and a plurality of evenly distributed through holes are formed in the outer wall of the lower pile body; a reaming plate is fixedly connected between the lower pile body and the pile tip, the outer side of the upper pile body is sleeved with a sleeve, and the upper side of the outer wall of the upper pile body communicates with a grouting pipe. The bearing capacity of the steel pipe pile is increased by filling broken stone or coarse sand into a reaming gap during pile pressing and filling the steel pipe pile with the broken stone after pile forming, and cement paste is filled into the steel pipe pile and leaks out of a drilled hole of a pile body, so that a cement paste wrapping layer is formed in a section below the ground of a backfill pit and on the outer side of the periphery of the steel pipe pile in the backfill pit, and the bearing capacity of the steel pipe pile is increased. And meanwhile, the problem that the underground steel pipe pile is easily subjected to corrosion prevention is solved.
本发明公开了一种大直径静压注浆钢管桩及其施工工艺，涉及建筑工程施工技术领域，包括包括下部桩身和上部桩身，下部桩身的上端与上部桩身的下端固定连接，下部桩身的下端固定有桩尖，下部桩身的外壁开设有多个均匀分布的通孔，下部桩身与桩尖之间固定连接有扩孔板，上部桩身的外侧套装有套筒，上部桩身外壁的上侧连通有注浆管；通过压桩时在扩孔空隙中灌填碎石或粗砂，成桩后，在钢管桩内灌填碎石，进而增大钢管桩的承载力，通过在钢管桩内灌注水泥浆，水泥浆从桩身钻孔中漏出，在回填坑地面以下区段及回填坑内部钢管桩四周外侧形成水泥浆包裹层，进而提高了钢管桩的承载力，同时也解决了地下钢管桩容易被防腐的问题。
Large-diameter static pressure grouting steel pipe pile and construction technology thereof
The invention discloses a large-diameter static pressure grouting steel pipe pile and a construction technology thereof, and relates to the technical field of building engineering construction, the large-diameter static pressure grouting steel pipe pile comprises a lower pile body and an upper pile body, the upper end of the lower pile body is fixedly connected with the lower end of the upper pile body, a pile tip is fixed to the lower end of the lower pile body, and a plurality of evenly distributed through holes are formed in the outer wall of the lower pile body; a reaming plate is fixedly connected between the lower pile body and the pile tip, the outer side of the upper pile body is sleeved with a sleeve, and the upper side of the outer wall of the upper pile body communicates with a grouting pipe. The bearing capacity of the steel pipe pile is increased by filling broken stone or coarse sand into a reaming gap during pile pressing and filling the steel pipe pile with the broken stone after pile forming, and cement paste is filled into the steel pipe pile and leaks out of a drilled hole of a pile body, so that a cement paste wrapping layer is formed in a section below the ground of a backfill pit and on the outer side of the periphery of the steel pipe pile in the backfill pit, and the bearing capacity of the steel pipe pile is increased. And meanwhile, the problem that the underground steel pipe pile is easily subjected to corrosion prevention is solved.
本发明公开了一种大直径静压注浆钢管桩及其施工工艺，涉及建筑工程施工技术领域，包括包括下部桩身和上部桩身，下部桩身的上端与上部桩身的下端固定连接，下部桩身的下端固定有桩尖，下部桩身的外壁开设有多个均匀分布的通孔，下部桩身与桩尖之间固定连接有扩孔板，上部桩身的外侧套装有套筒，上部桩身外壁的上侧连通有注浆管；通过压桩时在扩孔空隙中灌填碎石或粗砂，成桩后，在钢管桩内灌填碎石，进而增大钢管桩的承载力，通过在钢管桩内灌注水泥浆，水泥浆从桩身钻孔中漏出，在回填坑地面以下区段及回填坑内部钢管桩四周外侧形成水泥浆包裹层，进而提高了钢管桩的承载力，同时也解决了地下钢管桩容易被防腐的问题。
Large-diameter static pressure grouting steel pipe pile and construction technology thereof
一种大直径静压注浆钢管桩及其施工工艺
WEI CHANGBAO (Autor:in) / QIAN MING (Autor:in) / MA LINGHUI (Autor:in) / WEI QIN (Autor:in)
22.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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