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A platform for research: civil engineering, architecture and urbanism
Foundation pit support system with firstly-supporting and secondly-digging construction method piles combined with inclined piles
The invention relates to a foundation pit support system with piles combined with inclined piles in a supporting-before-digging construction method, which comprises two rows of water-soil mixing piles, H-shaped steel inserted in the piles, coping ring beams and connecting beams of front and rear rows of piles, an upper inclined inclined pile and a lower inclined inclined pile, the inclined pile can be H-shaped steel, a steel pipe, a hollow square pile, a hollow pipe pile, a solid square pile, a water stop groove square pile, a water stop groove circular pile and the like; the deep foundation pit supporting type means that the supporting type can be applied to deep foundation pits of two underground layers. The raking piles are embedded in the coping ring beam, and when the raking pile bodies are H-shaped steel or steel pipes, pre-embedded steel plates can be arranged on the coping ring beam to serve as welding connection measures; meanwhile, in order to prevent the inclined piles from passing through the intersection point of the floor slab and the outer wall in the basement, the vertical angles of the inclined piles can be adjusted within 15-50 degrees; the inclined pile can be pressed into a guide hole of the high-pressure jet grouting pile through a special construction machine and then inserted into the guide hole. The invention has the advantages that the portal frame structure is H-shaped steel, the inclined piles can be directly used and can be bought in the market, and the portal frame is convenient and fast to construct, low in manufacturing cost, energy-saving, environment-friendly, few in technical difficulty and convenient to popularize; meanwhile, the structure has multiple functions of reinforcement, skid resistance, soil retaining and water stopping, and can be used for deep foundation pit supporting of two underground layers.
本发明涉及一种先撑后挖工法桩结合斜桩的基坑围护体系，所述的支护型式结构包括两排水泥土搅拌桩，其内插H型钢，前后排桩的压顶圈梁及连系梁，上下两道斜向斜桩，斜桩可以为：H型钢、钢管、空心方桩、空心管桩、实心方桩、止水槽方桩、止水槽圆桩等；所述深基坑支护型式是指这种支护型式可以应用在地下两层的深基坑；斜桩埋入压顶圈梁内，当斜桩桩体为H型钢或钢管时，可在压顶圈梁设置预埋钢板作为焊接连接措施；同时，为避免斜桩通过地下室中楼板和外墙的交点，斜桩竖向角度可以在15°～50°之内调整；斜桩可通过专用施工机械压入或高压旋喷桩引孔后插入。本发明的优点是：门架结构为H型钢，斜桩为可直接使用桩体，可在市场上买到，施工方便、快捷，造价低，节能环保，技术难点少，推广便利；同时，结构本身具有加筋抗滑、挡土、止水多重作用，可用于地下两层的深基坑支护。
Foundation pit support system with firstly-supporting and secondly-digging construction method piles combined with inclined piles
The invention relates to a foundation pit support system with piles combined with inclined piles in a supporting-before-digging construction method, which comprises two rows of water-soil mixing piles, H-shaped steel inserted in the piles, coping ring beams and connecting beams of front and rear rows of piles, an upper inclined inclined pile and a lower inclined inclined pile, the inclined pile can be H-shaped steel, a steel pipe, a hollow square pile, a hollow pipe pile, a solid square pile, a water stop groove square pile, a water stop groove circular pile and the like; the deep foundation pit supporting type means that the supporting type can be applied to deep foundation pits of two underground layers. The raking piles are embedded in the coping ring beam, and when the raking pile bodies are H-shaped steel or steel pipes, pre-embedded steel plates can be arranged on the coping ring beam to serve as welding connection measures; meanwhile, in order to prevent the inclined piles from passing through the intersection point of the floor slab and the outer wall in the basement, the vertical angles of the inclined piles can be adjusted within 15-50 degrees; the inclined pile can be pressed into a guide hole of the high-pressure jet grouting pile through a special construction machine and then inserted into the guide hole. The invention has the advantages that the portal frame structure is H-shaped steel, the inclined piles can be directly used and can be bought in the market, and the portal frame is convenient and fast to construct, low in manufacturing cost, energy-saving, environment-friendly, few in technical difficulty and convenient to popularize; meanwhile, the structure has multiple functions of reinforcement, skid resistance, soil retaining and water stopping, and can be used for deep foundation pit supporting of two underground layers.
本发明涉及一种先撑后挖工法桩结合斜桩的基坑围护体系，所述的支护型式结构包括两排水泥土搅拌桩，其内插H型钢，前后排桩的压顶圈梁及连系梁，上下两道斜向斜桩，斜桩可以为：H型钢、钢管、空心方桩、空心管桩、实心方桩、止水槽方桩、止水槽圆桩等；所述深基坑支护型式是指这种支护型式可以应用在地下两层的深基坑；斜桩埋入压顶圈梁内，当斜桩桩体为H型钢或钢管时，可在压顶圈梁设置预埋钢板作为焊接连接措施；同时，为避免斜桩通过地下室中楼板和外墙的交点，斜桩竖向角度可以在15°～50°之内调整；斜桩可通过专用施工机械压入或高压旋喷桩引孔后插入。本发明的优点是：门架结构为H型钢，斜桩为可直接使用桩体，可在市场上买到，施工方便、快捷，造价低，节能环保，技术难点少，推广便利；同时，结构本身具有加筋抗滑、挡土、止水多重作用，可用于地下两层的深基坑支护。
Foundation pit support system with firstly-supporting and secondly-digging construction method piles combined with inclined piles
一种先撑后挖工法桩结合斜桩的基坑围护体系
ZHOU YUSHI (author) / XIE XIAODONG (author) / LIU GUOFENG (author) / XIE YIFEI (author)
2022-03-29
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2022
| European Patent Office | 2022
| European Patent Office | 2022
| European Patent Office | 2020
| European Patent Office | 2020