Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Frame-suspended pile supporting structure system for protecting subway tunnel and construction method of frame-suspended pile supporting structure system
The invention discloses a frame-suspended pile supporting structure system for protecting a subway tunnel and a construction method of the frame-suspended pile supporting structure system, and belongs to the technical field of foundation pit excavation and reinforcement. The construction method comprises the steps that when a soil body in a foundation pit area is excavated, the soil body, 50 meters away from the subway area, is excavated firstly, then foundation pit support double-row piles are piled at the position 20-25 meters away from a subway in advance according to specific conditions, and structures such as inner and outer side waist beams and transverse and longitudinal supports are matched to support the area around the subway; and then the soil body outside the subway tunnel foundation pit support double-row piles and within 50 meters is excavated in a layered and partitioned mode. According to the other excavation working condition, excavation unloading is directly carried out over the subway, foundation pit support double-row piles are driven, the stability of the foundation pit in the excavation process can be guaranteed, lateral deformation of the soil body can be limited, and therefore lateral deformation of the subway tunnel is reduced. The structure is a whole, the pile bodies work cooperatively, the rigidity of the pile bodies is enhanced, and differential settlement is reduced.
一种保护地铁隧道的框架‑悬桩支撑结构体系及其工法，属于基坑开挖加固技术领域。进行基坑区域内的土体开挖时，先对地铁区域50米以外的土体进行开挖，随后根据具体条件预先在地铁20‑25米处打设基坑围护双排桩，并配合内外侧腰梁、横纵向支撑等结构，对地铁周围区域进行支撑，随后再将地铁隧道基坑围护双排桩以外、50米以内的土体进行分层分块的开挖。另一种开挖工况为直接在地铁正上方进行开挖卸荷，亦进行基坑围护双排桩的打设，既可保证开挖过程中基坑的稳定性，又可限制土体的侧向形变，从而减小地铁隧道的侧向变形。本发明的结构为一个整体，使桩体协同工作，增强桩体刚度，减少不均匀沉降。
Frame-suspended pile supporting structure system for protecting subway tunnel and construction method of frame-suspended pile supporting structure system
The invention discloses a frame-suspended pile supporting structure system for protecting a subway tunnel and a construction method of the frame-suspended pile supporting structure system, and belongs to the technical field of foundation pit excavation and reinforcement. The construction method comprises the steps that when a soil body in a foundation pit area is excavated, the soil body, 50 meters away from the subway area, is excavated firstly, then foundation pit support double-row piles are piled at the position 20-25 meters away from a subway in advance according to specific conditions, and structures such as inner and outer side waist beams and transverse and longitudinal supports are matched to support the area around the subway; and then the soil body outside the subway tunnel foundation pit support double-row piles and within 50 meters is excavated in a layered and partitioned mode. According to the other excavation working condition, excavation unloading is directly carried out over the subway, foundation pit support double-row piles are driven, the stability of the foundation pit in the excavation process can be guaranteed, lateral deformation of the soil body can be limited, and therefore lateral deformation of the subway tunnel is reduced. The structure is a whole, the pile bodies work cooperatively, the rigidity of the pile bodies is enhanced, and differential settlement is reduced.
一种保护地铁隧道的框架‑悬桩支撑结构体系及其工法，属于基坑开挖加固技术领域。进行基坑区域内的土体开挖时，先对地铁区域50米以外的土体进行开挖，随后根据具体条件预先在地铁20‑25米处打设基坑围护双排桩，并配合内外侧腰梁、横纵向支撑等结构，对地铁周围区域进行支撑，随后再将地铁隧道基坑围护双排桩以外、50米以内的土体进行分层分块的开挖。另一种开挖工况为直接在地铁正上方进行开挖卸荷，亦进行基坑围护双排桩的打设，既可保证开挖过程中基坑的稳定性，又可限制土体的侧向形变，从而减小地铁隧道的侧向变形。本发明的结构为一个整体，使桩体协同工作，增强桩体刚度，减少不均匀沉降。
Frame-suspended pile supporting structure system for protecting subway tunnel and construction method of frame-suspended pile supporting structure system
一种保护地铁隧道的框架-悬桩支撑结构体系及其工法
TANG LIANG (Autor:in) / TANG WENCHONG (Autor:in) / LING XIANCHANG (Autor:in) / GONG YINGJIE (Autor:in) / KONG XIANGXUN (Autor:in) / CONG SHENGYI (Autor:in) / TIAN SHUANG (Autor:in) / ZHANG YIFAN (Autor:in) / ZOU YANLIN (Autor:in) / CHENG XUDONG (Autor:in)
27.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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