Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of self-stabilizing foundation pit supporting structure
The invention relates to a construction method of a self-stabilizing foundation pit supporting structure, which comprises the following steps of: 1) arranging double rows of supporting piles, and driving inclined struts into a pit at the tops of the double rows of supporting piles; (2) top ring beams, connecting beams and coping plates of the double-row pile supporting piles are poured, and first inclined struts are fixed; (3) downwards excavating to a second inclined strut, and constructing a concrete ring beam at the junction of the inclined strut of the outer-row support pile and the inner-row pile to fix the second inclined strut; (4) downward excavation continues, the steps are repeated to the base, and a reinforced cushion layer is immediately poured on the pit facing side of the base to fix all the inclined struts; and (5) a bottom plate basement structure is constructed, water stop steel plates are arranged at the positions where the inclined struts penetrate through the bottom plate and the basement outer wall to prevent water leakage, and the steel pipes invading the basement outer wall are cut off after the basement goes out of the ground and is backfilled. The problem that a single-row supporting pile structure adopts a single-way inclined strut is poor in overall rigidity can be solved, and meanwhile the double-row piles are adopted, so that the overall rigidity and stability of an enclosure can be improved, and deformation of a foundation pit is reduced.
本发明涉及一种自稳式基坑支护结构的施工方法，其步骤为：1)设置双排支护桩，在双排支护桩顶部均向坑内打设斜撑；2)浇筑双排桩支护桩顶部圈梁、连梁及压顶板，固定首道斜撑；3)向下开挖至第二道斜撑，在外排支护桩的斜撑与内排桩交界处，施工混凝土圈梁固定第二道斜撑；4)继续向下开挖，重复以上步骤至基底，基底迎坑侧立即浇筑加筋垫层固定所有斜撑；5)施工底板地下室结构，斜撑穿底板及地下室外墙处设置止水钢板防止漏水，待地下室出地面并回填后割除侵入地下室外墙内的钢管。采用本发明可避免单排支护桩结构采用单道斜撑整体刚度较弱等问题，同时采用双排桩能提高围护整体刚度及稳定性，缩小基坑变形等优势。
Construction method of self-stabilizing foundation pit supporting structure
The invention relates to a construction method of a self-stabilizing foundation pit supporting structure, which comprises the following steps of: 1) arranging double rows of supporting piles, and driving inclined struts into a pit at the tops of the double rows of supporting piles; (2) top ring beams, connecting beams and coping plates of the double-row pile supporting piles are poured, and first inclined struts are fixed; (3) downwards excavating to a second inclined strut, and constructing a concrete ring beam at the junction of the inclined strut of the outer-row support pile and the inner-row pile to fix the second inclined strut; (4) downward excavation continues, the steps are repeated to the base, and a reinforced cushion layer is immediately poured on the pit facing side of the base to fix all the inclined struts; and (5) a bottom plate basement structure is constructed, water stop steel plates are arranged at the positions where the inclined struts penetrate through the bottom plate and the basement outer wall to prevent water leakage, and the steel pipes invading the basement outer wall are cut off after the basement goes out of the ground and is backfilled. The problem that a single-row supporting pile structure adopts a single-way inclined strut is poor in overall rigidity can be solved, and meanwhile the double-row piles are adopted, so that the overall rigidity and stability of an enclosure can be improved, and deformation of a foundation pit is reduced.
本发明涉及一种自稳式基坑支护结构的施工方法，其步骤为：1)设置双排支护桩，在双排支护桩顶部均向坑内打设斜撑；2)浇筑双排桩支护桩顶部圈梁、连梁及压顶板，固定首道斜撑；3)向下开挖至第二道斜撑，在外排支护桩的斜撑与内排桩交界处，施工混凝土圈梁固定第二道斜撑；4)继续向下开挖，重复以上步骤至基底，基底迎坑侧立即浇筑加筋垫层固定所有斜撑；5)施工底板地下室结构，斜撑穿底板及地下室外墙处设置止水钢板防止漏水，待地下室出地面并回填后割除侵入地下室外墙内的钢管。采用本发明可避免单排支护桩结构采用单道斜撑整体刚度较弱等问题，同时采用双排桩能提高围护整体刚度及稳定性，缩小基坑变形等优势。
Construction method of self-stabilizing foundation pit supporting structure
一种自稳式基坑支护结构的施工方法
GU HUAN (Autor:in) / WANG LIXIANG (Autor:in) / LI WEIQIANG (Autor:in) / LUO YUNFENG (Autor:in) / LI YUFENG (Autor:in) / WU BIN (Autor:in) / YU SHUNLI (Autor:in) / SHANG JIN (Autor:in)
27.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Self-stabilizing foundation pit supporting combined construction method
| Europäisches Patentamt | 2022
Efficient and self-stabilizing foundation pit supporting structure and construction method thereof
| Europäisches Patentamt | 2023
Self-stabilizing supporting structure for deep foundation pit
| Europäisches Patentamt | 2023
Self-stabilizing inner-support-free foundation pit supporting structure
| Europäisches Patentamt | 2023
Foundation pit long-span supporting stabilizing structure
| Europäisches Patentamt | 2021