Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for ultra-long isolation pile close to subway
The invention belongs to the field of building construction close to municipal facilities, and particularly relates to a construction method of an ultra-long isolation pile close to a subway. Comprising the following steps: A, calculating and analyzing; b, defensive line positioning; c, pile casing burying; d, slurry preparation; e, graded drilling; f, primary hole cleaning and formed hole inspection; g, a reinforcement cage and a guide pipe are arranged in a segmented mode; h, underwater concrete is poured; i, pulling out the pile casing and backfilling the empty hole; compared with the prior art, the construction method has the advantages that soil displacement caused by pile groups is effectively avoided, so that later construction load cannot be directly transmitted to the existing underground building, displacement and deformation of the existing underground building are reduced, the problems of super-long pile construction and subway deformation control are effectively solved, cost is saved, and efficiency is improved; (2) the optimal pile length of the isolation pile is calculated by utilizing an informatization technology, and the problems of design optimization, scheme selection, underground building deformation analysis and the like are solved; and (3) graded drilling is adopted, and deformation caused by excavation is controlled.
本发明属于临近市政设施的建筑施工领域，具体涉及一种临近地铁超长隔离桩施工方法；包括如下步骤：A、计算分析；B、防线定位；C、护筒埋设；D、泥浆准备；E、分级钻孔；F、一次清孔及成孔检验；G、分段下钢筋笼和下置导管；H、浇筑水下混凝土；I、拔护筒和空孔回填；与现有技术相比，本发明的施工方法：(1)有效避免了群桩引起的土体位移，使得后期施工荷载不能直接传递到既有地下建筑处，减小既有地下建筑位移和变形，有效解决了超长桩施工和控制地铁变形难题，节约了成本提高了效率；(2)利用信息化技术计算出最佳的隔离桩桩长，解决了设计优化、方案选型、地下建筑变形分析等难题；(3)采用分级钻孔，控制开挖引起的变形。
Construction method for ultra-long isolation pile close to subway
The invention belongs to the field of building construction close to municipal facilities, and particularly relates to a construction method of an ultra-long isolation pile close to a subway. Comprising the following steps: A, calculating and analyzing; b, defensive line positioning; c, pile casing burying; d, slurry preparation; e, graded drilling; f, primary hole cleaning and formed hole inspection; g, a reinforcement cage and a guide pipe are arranged in a segmented mode; h, underwater concrete is poured; i, pulling out the pile casing and backfilling the empty hole; compared with the prior art, the construction method has the advantages that soil displacement caused by pile groups is effectively avoided, so that later construction load cannot be directly transmitted to the existing underground building, displacement and deformation of the existing underground building are reduced, the problems of super-long pile construction and subway deformation control are effectively solved, cost is saved, and efficiency is improved; (2) the optimal pile length of the isolation pile is calculated by utilizing an informatization technology, and the problems of design optimization, scheme selection, underground building deformation analysis and the like are solved; and (3) graded drilling is adopted, and deformation caused by excavation is controlled.
本发明属于临近市政设施的建筑施工领域，具体涉及一种临近地铁超长隔离桩施工方法；包括如下步骤：A、计算分析；B、防线定位；C、护筒埋设；D、泥浆准备；E、分级钻孔；F、一次清孔及成孔检验；G、分段下钢筋笼和下置导管；H、浇筑水下混凝土；I、拔护筒和空孔回填；与现有技术相比，本发明的施工方法：(1)有效避免了群桩引起的土体位移，使得后期施工荷载不能直接传递到既有地下建筑处，减小既有地下建筑位移和变形，有效解决了超长桩施工和控制地铁变形难题，节约了成本提高了效率；(2)利用信息化技术计算出最佳的隔离桩桩长，解决了设计优化、方案选型、地下建筑变形分析等难题；(3)采用分级钻孔，控制开挖引起的变形。
Construction method for ultra-long isolation pile close to subway
一种临近地铁超长隔离桩施工方法
LI CHENTENG (Autor:in) / YUE BAOSHU (Autor:in) / ZHANG XIUFEI (Autor:in) / LIU MENG (Autor:in) / CHANG LELE (Autor:in)
22.11.2022
Patent
Elektronische Ressource
Chinesisch
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