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A platform for research: civil engineering, architecture and urbanism
Press-in type foundation pit supporting structure utilizing soil arching effect and construction method of press-in type foundation pit supporting structure
The invention discloses a press-in type foundation pit supporting structure utilizing the soil arching effect and a construction method thereof.The supporting structure comprises a plurality of profile steel stand columns which are vertically pressed into a soil body at the foundation pit supporting position, the lower ends of the profile steel stand columns are located in a solid soil layer below the bottom of a foundation pit, and a vertical cantilever structure is formed; the profile steel stand columns are transversely arranged at intervals along the soil body. An arch-shaped steel plate with the arch facing the outer direction of the foundation pit is pressed into the soil body between every two profile steel stand columns; the arch-shaped support is arranged in the arch-shaped steel plate and supports the arch-shaped steel plate to keep an arch shape; a foundation pit supporting structure is defined by the profile steel stand columns and the arched steel plates, and soil pressure on the back of the upper supporting structure is maintained through resistance moment of a soil layer below the bottom of a foundation pit to the profile steel stand columns. According to the supporting mode, the soil arching effect characteristic in the soil body is utilized, and the supporting mode has the advantages of being high in construction efficiency, low in cost, good in safety and small in environmental pollution.
本发明公开了一种利用土拱效应的压入式基坑支护结构及其施工方法，支护结构包括多根型钢立柱，分别延竖向压入基坑支护位置处土体中，下端处于基坑底部以下坚实土层中，构成竖向悬挑结构；多根型钢立柱之间沿土体横向间隔布置；每两根所述型钢立柱之间的土体中压入一块拱向朝基坑外方向设置的拱形钢板；拱型支承，布设在所述拱形钢板内部，支承拱形钢板保持拱形状；多根所述型钢立柱和多块所述拱形钢板围合形成基坑支护结构，由基坑底部以下土层对型钢立柱的抵抗力矩维持上部支护结构背部的土压力。该发明的支护形式利用了土体中土拱效应特性，具有施工效率高、成本低、安全性好、环境污染小的特点。
Press-in type foundation pit supporting structure utilizing soil arching effect and construction method of press-in type foundation pit supporting structure
The invention discloses a press-in type foundation pit supporting structure utilizing the soil arching effect and a construction method thereof.The supporting structure comprises a plurality of profile steel stand columns which are vertically pressed into a soil body at the foundation pit supporting position, the lower ends of the profile steel stand columns are located in a solid soil layer below the bottom of a foundation pit, and a vertical cantilever structure is formed; the profile steel stand columns are transversely arranged at intervals along the soil body. An arch-shaped steel plate with the arch facing the outer direction of the foundation pit is pressed into the soil body between every two profile steel stand columns; the arch-shaped support is arranged in the arch-shaped steel plate and supports the arch-shaped steel plate to keep an arch shape; a foundation pit supporting structure is defined by the profile steel stand columns and the arched steel plates, and soil pressure on the back of the upper supporting structure is maintained through resistance moment of a soil layer below the bottom of a foundation pit to the profile steel stand columns. According to the supporting mode, the soil arching effect characteristic in the soil body is utilized, and the supporting mode has the advantages of being high in construction efficiency, low in cost, good in safety and small in environmental pollution.
本发明公开了一种利用土拱效应的压入式基坑支护结构及其施工方法，支护结构包括多根型钢立柱，分别延竖向压入基坑支护位置处土体中，下端处于基坑底部以下坚实土层中，构成竖向悬挑结构；多根型钢立柱之间沿土体横向间隔布置；每两根所述型钢立柱之间的土体中压入一块拱向朝基坑外方向设置的拱形钢板；拱型支承，布设在所述拱形钢板内部，支承拱形钢板保持拱形状；多根所述型钢立柱和多块所述拱形钢板围合形成基坑支护结构，由基坑底部以下土层对型钢立柱的抵抗力矩维持上部支护结构背部的土压力。该发明的支护形式利用了土体中土拱效应特性，具有施工效率高、成本低、安全性好、环境污染小的特点。
Press-in type foundation pit supporting structure utilizing soil arching effect and construction method of press-in type foundation pit supporting structure
一种利用土拱效应的压入式基坑支护结构及其施工方法
WANG YIFAN (author) / QIU TAO (author) / TONG LIYUAN (author) / HUANG SIYI (author) / LIU WENYUAN (author) / YAN XIN (author) / XIAO YU (author) / MA WEN'E (author)
2024-07-09
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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