水库附近矿山法隧道抗水压衬砌结构研究  

Study on Anti-hydraulic Pressure Lining Structure of Mine Tunnel near Reservoir

作　　者：沈艳峰 SHEN Yanfeng

机构地区：[1]上海市政工程设计研究总院(集团)有限公司,上海市200092

出　　处：《城市道桥与防洪》2021年第6期289-295,M0024,共8页Urban Roads Bridges & Flood Control

摘　　要：目前我国出现了大量的城市下穿隧道,但由于各城市间水文地质条件的差异性较大,既有的工程设计与施工经验不能生搬硬套,而应结合项目自身及周边环境的特点有针对性的展开研究,如何有效平衡地下水的适量排放与衬砌结构安全性、经济性的合理统一,对隧道设计至关重要。但是目前的防排水系统及防水衬砌设计等关键技术在城市地下空间建设过程中研究尚不系统,国内外也并无成熟的资料可供参考。基于此,以深圳市东部过境高速公路连接线中复杂水文地质隧道为工程依托,运用FLAC3D软件,研究分析了不同防排水方案下水压力分布特征及结构承载机理,并提出依托工程中合理防排水系统及防水衬砌设计方法,以期指导后续工程设计,保障工程施工与运营安全。At present, there are a large number of urban underpass tunnels in China. However, due to the great difference of hydrogeological conditions among cities, the existing engineering design and construction experience cannot be mechanically copied, but should be combined with the characteristics of the project itself and the surrounding environment to carry out targeted research. It is vital how to effectively balance the proper discharge of groundwater and the reasonable unity of safety and economy of lining structure for the tunnel design. However, the study on key technologies of waterproof and drainage system and waterproof lining design in the process of urban underground space construction is not systematic, and there are no mature data for reference at home and abroad. Based on this, relying on the complex hydrogeological tunnel in the connecting line of transit expressways in the east of Shenzhen, the water pressure distribution characteristics and structural bearing mechanisms of the different waterproof and drainage schemes are studied and analyzed by FLAC3D software, and the design method of reasonable waterproof and drainage system and waterproof lining in the supported project in order to guide the follow-up engineering design and ensure the safety of engineering construction and operation.

关 键 词：城市富水隧道 防排水体系 数值模拟 渗流场 应力 

分 类 号：TU992.1[建筑科学—市政工程]