Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Foundation pit supporting structure with soft upper part and hard lower part and construction method
The invention relates to an upper-soft lower-hard stratum foundation pit supporting structure and a construction method. The upper-soft lower-hard stratum foundation pit supporting structure comprises fender posts located on the periphery of a foundation pit, the upper portions of the fender posts are large-diameter piles, the lower portions of the fender posts are small-diameter piles, the fender posts are of an integrated structure, and the force transmission capacity between the upper portions and the lower portions of the fender posts is guaranteed; the lower portion of the large-diameter pile and the small-diameter pile are both located in the rock stratum, so that the junction of the large-diameter pile and the small-diameter pile can be located in the rock stratum, and the junction is prevented from being damaged due to too large transverse force; the bottom of the small-diameter pile can be anchored at a deeper position in a rock stratum, so that the fender post can be self-stabilized by virtue of the rock stratum, a rock shoulder does not need to be arranged, and the scale of a foundation pit can be reduced; and the bottoms of the fender posts are anchored in the deeper position in the rock stratum through the small-diameter piles, compared with the mode that the bottoms of the large-diameter piles are directly anchored in the deeper position in the rock stratum, hole forming is simpler, construction is easier, and the engineering cost can be reduced.
本发明涉及一种上软下硬地层基坑支护结构及施工方法。上软下硬地层基坑支护结构，包括位于基坑四周的围护桩，围护桩上部为大直径桩、下部为小直径桩，围护桩为一体结构，保证了围护桩上部和下部之间的传力能力；且大直径桩下部和小直径桩均位于岩层内，能够使得大直径桩和小直径桩的交界处位于岩层内，避免此处受横向力过大而被破坏；小直径桩底部能够锚定在岩层内更深位置，使得围护桩能够借助岩层实现围护桩的自稳，且不需要设置岩肩，可以减小基坑规模；且通过小直径桩将围护桩底部锚固在岩层内更深位置，相比于直接将大直径桩底部锚固在岩层内更深位置，成孔更加简单，施工更加容易，能够减少工程成本。
Foundation pit supporting structure with soft upper part and hard lower part and construction method
The invention relates to an upper-soft lower-hard stratum foundation pit supporting structure and a construction method. The upper-soft lower-hard stratum foundation pit supporting structure comprises fender posts located on the periphery of a foundation pit, the upper portions of the fender posts are large-diameter piles, the lower portions of the fender posts are small-diameter piles, the fender posts are of an integrated structure, and the force transmission capacity between the upper portions and the lower portions of the fender posts is guaranteed; the lower portion of the large-diameter pile and the small-diameter pile are both located in the rock stratum, so that the junction of the large-diameter pile and the small-diameter pile can be located in the rock stratum, and the junction is prevented from being damaged due to too large transverse force; the bottom of the small-diameter pile can be anchored at a deeper position in a rock stratum, so that the fender post can be self-stabilized by virtue of the rock stratum, a rock shoulder does not need to be arranged, and the scale of a foundation pit can be reduced; and the bottoms of the fender posts are anchored in the deeper position in the rock stratum through the small-diameter piles, compared with the mode that the bottoms of the large-diameter piles are directly anchored in the deeper position in the rock stratum, hole forming is simpler, construction is easier, and the engineering cost can be reduced.
本发明涉及一种上软下硬地层基坑支护结构及施工方法。上软下硬地层基坑支护结构，包括位于基坑四周的围护桩，围护桩上部为大直径桩、下部为小直径桩，围护桩为一体结构，保证了围护桩上部和下部之间的传力能力；且大直径桩下部和小直径桩均位于岩层内，能够使得大直径桩和小直径桩的交界处位于岩层内，避免此处受横向力过大而被破坏；小直径桩底部能够锚定在岩层内更深位置，使得围护桩能够借助岩层实现围护桩的自稳，且不需要设置岩肩，可以减小基坑规模；且通过小直径桩将围护桩底部锚固在岩层内更深位置，相比于直接将大直径桩底部锚固在岩层内更深位置，成孔更加简单，施工更加容易，能够减少工程成本。
Foundation pit supporting structure with soft upper part and hard lower part and construction method
一种上软下硬地层基坑支护结构及施工方法
ZHANG XIANFU (Autor:in) / YUE YINGQIN (Autor:in) / LI HUI (Autor:in) / ZHOU MINGLIANG (Autor:in) / XIAO FAN (Autor:in) / ZHOU YUNBIN (Autor:in) / SHI XUANTAO (Autor:in) / XU XU (Autor:in) / SHEN JIN (Autor:in)
14.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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