| 拱北明挖隧道超大基坑地基加固方案研究 |
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| 引用本文： | 陈飞飞,李波.拱北明挖隧道超大基坑地基加固方案研究[J].路基工程,2023,0(1):201-206. |
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| 作者姓名： | 陈飞飞 李波 |
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| 作者单位： | 中交第二公路勘察设计研究院有限公司，武汉 430056 |
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| 基金项目： | 广东省交通运输厅重大工程项目（科技201601001） |
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| 摘 要： | 以港珠澳大桥珠海连接线工程拱北隧道明挖段为例，选取ZK1+350～+540标段建立数值分析模型，讨论基坑满堂加固、隔水层裙边+抽条加固与仅裙边加固法三种方案对明挖隧道地基沉降、地下连续墙变形及围护结构受力特性的影响规律，提出推荐方案。
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| 关 键 词： | 软弱地层 地基加固 地基沉降 地连墙变形 支撑内力 |
| 收稿时间： | 2022-06-10 |
Research on the Reinforcement Scheme of Foundations for Super Large Foundation Pits in Open-cut Tunnels of Gongbei |
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| Abstract: | Taking the open-cut section of the Gongbei tunnel of a Zhuhai connecting line project of the Hong Kong—Zhuhai—Macao Bridge as an example, the ZK1+350~ +540 section was selected to establish numerical analysis model and the effects of three schemes were discussed, such as full-thickening of foundation pits, skirt of water-resisting layer + strip reinforcement and skirt reinforcement method only, on foundation settlement of open-cut tunnel, deformation of diaphragm walls, and force characteristics of enclosure structures. The recommended schemes were proposed, |
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