Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of foundation pit slope re-excavation supporting structure
The invention discloses a construction method of a foundation pit slope re-excavation supporting structure. The re-excavation supporting structure comprises a foundation pit of a basement to be constructed, a design side slope arranged on the periphery of the foundation pit, soil nails arranged in the design side slope, a bearing platform arranged on the middle layer in the height direction of the design side slope, bearing platform piles connected to the lower portion of the bearing platform, and basement outer structure columns connected to the top of the bearing platform. The secondary support pile is arranged between the bearing platform and the construction land red line; and the top beam is arranged at the top of the secondary support pile. According to the method, the excavated foundation pit is backfilled, so that a construction space is provided for the bearing platform pile, and the bearing platform at the steep slope can be conveniently and rapidly constructed; through the arrangement of the secondary supporting piles and the top beams, it is guaranteed that pouring construction of the bearing platform piles after secondary backfill is conducted, soil inside and outside the piles is separated, soil at the damaged soil nail positions does not participate in stress, the risk of foundation pit collapse is avoided, meanwhile, backfill soil on the inner side of the foundation pit is reserved to serve as back pressure soil, and the overall stability of the foundation pit is improved.
本发明公开了一种基坑边坡再开挖支护结构的施工方法，再开挖支护结构包含待施工地下室的基坑、设置于基坑四周的设计边坡、设置于设计边坡内的土钉、设置于设计边坡高度方向中层的承台、连接于承台下方的承台桩、连接于承台顶部的地下室外结构柱、设置于承台与施工用地红线之间设置的二次支护桩以及二次支护桩顶部设置的冠梁。本发明通过回填已开挖的基坑，为承台桩提供了施工空间，便于陡峭边坡处的承台的便捷施工；本发明通过二次支护桩和冠梁的设置，利于保证二次回填后的承台桩的灌注施工且将桩内外土壤分隔，被破坏的土钉部位土壤不参与受力，以避免基坑坍塌的风险，同时保留基坑内侧部分回填土作为反压土，以增加基坑整体的稳定性。
Construction method of foundation pit slope re-excavation supporting structure
The invention discloses a construction method of a foundation pit slope re-excavation supporting structure. The re-excavation supporting structure comprises a foundation pit of a basement to be constructed, a design side slope arranged on the periphery of the foundation pit, soil nails arranged in the design side slope, a bearing platform arranged on the middle layer in the height direction of the design side slope, bearing platform piles connected to the lower portion of the bearing platform, and basement outer structure columns connected to the top of the bearing platform. The secondary support pile is arranged between the bearing platform and the construction land red line; and the top beam is arranged at the top of the secondary support pile. According to the method, the excavated foundation pit is backfilled, so that a construction space is provided for the bearing platform pile, and the bearing platform at the steep slope can be conveniently and rapidly constructed; through the arrangement of the secondary supporting piles and the top beams, it is guaranteed that pouring construction of the bearing platform piles after secondary backfill is conducted, soil inside and outside the piles is separated, soil at the damaged soil nail positions does not participate in stress, the risk of foundation pit collapse is avoided, meanwhile, backfill soil on the inner side of the foundation pit is reserved to serve as back pressure soil, and the overall stability of the foundation pit is improved.
本发明公开了一种基坑边坡再开挖支护结构的施工方法，再开挖支护结构包含待施工地下室的基坑、设置于基坑四周的设计边坡、设置于设计边坡内的土钉、设置于设计边坡高度方向中层的承台、连接于承台下方的承台桩、连接于承台顶部的地下室外结构柱、设置于承台与施工用地红线之间设置的二次支护桩以及二次支护桩顶部设置的冠梁。本发明通过回填已开挖的基坑，为承台桩提供了施工空间，便于陡峭边坡处的承台的便捷施工；本发明通过二次支护桩和冠梁的设置，利于保证二次回填后的承台桩的灌注施工且将桩内外土壤分隔，被破坏的土钉部位土壤不参与受力，以避免基坑坍塌的风险，同时保留基坑内侧部分回填土作为反压土，以增加基坑整体的稳定性。
Construction method of foundation pit slope re-excavation supporting structure
一种基坑边坡再开挖支护结构的施工方法
LI MINGKE (Autor:in) / XUE HENGYAN (Autor:in) / FANG SHIPENG (Autor:in) / CAO FENGXIN (Autor:in) / YANG HAILONG (Autor:in) / HE PEIGEN (Autor:in) / ZHAO HUAYING (Autor:in) / CHEN HAO (Autor:in) / LI YANG (Autor:in) / WANG ZHE (Autor:in)
24.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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