特大型溶洞隧道综合处治方案及施工技术
发布时间：2018-07-16 19:56
【摘要】：为解决岩溶地区公路隧道修建过程中特大型溶洞难跨越的问题,采用理论与现场相结合的方法,综合考虑特大型溶洞的特点与处治难点,提出采用"承载桩基-纵横框架梁板-钢筋混凝土挡墙"组合处治结构与洞渣回填综合处治的方案,在此基础上建立一套以回填为基础、自下而上交叉施工处治结构的施工方法,并提出洞渣回填、承载桩基、纵横框架梁板结构及钢筋混凝土挡墙结构施工等关键技术。现场施工实践证明,该溶洞处治效果良好,能保证隧道施工安全与结构安全。
[Abstract]:In order to solve the problem that it is difficult to cross the super large karst cave in the construction process of highway tunnel in karst area, the method of combining theory with field is adopted, and the characteristics and treatment difficulties of super large karst cave are considered synthetically. This paper puts forward a comprehensive treatment scheme of "bearing pile foundation, longitudinal and horizontal frame beam-slab-reinforced concrete retaining wall" combined treatment structure and hole slag backfill, and establishes a set of comprehensive treatment scheme based on backfill. The construction method of cross construction from bottom to top is put forward, and the key technologies such as backfill of hole slag, pile foundation, beam slab structure and reinforced concrete retaining wall are put forward. The site construction practice shows that the cave has good treatment effect and can ensure the tunnel construction safety and structural safety.
【作者单位】： 中交一公局第一工程有限公司;湖南省交通规划勘察设计院;中南大学资源与安全工程学院;
【基金】：国家自然科学基金资助项目(51074178,51678570) 湖南省交通科技项目(201524)
【分类号】：U455.4
，
本文编号：2127509
[Abstract]:In order to solve the problem that it is difficult to cross the super large karst cave in the construction process of highway tunnel in karst area, the method of combining theory with field is adopted, and the characteristics and treatment difficulties of super large karst cave are considered synthetically. This paper puts forward a comprehensive treatment scheme of "bearing pile foundation, longitudinal and horizontal frame beam-slab-reinforced concrete retaining wall" combined treatment structure and hole slag backfill, and establishes a set of comprehensive treatment scheme based on backfill. The construction method of cross construction from bottom to top is put forward, and the key technologies such as backfill of hole slag, pile foundation, beam slab structure and reinforced concrete retaining wall are put forward. The site construction practice shows that the cave has good treatment effect and can ensure the tunnel construction safety and structural safety.
【作者单位】： 中交一公局第一工程有限公司;湖南省交通规划勘察设计院;中南大学资源与安全工程学院;
【基金】：国家自然科学基金资助项目(51074178,51678570) 湖南省交通科技项目(201524)
【分类号】：U455.4
，
本文编号：2127509
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