A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Half-open and half-dark tunnel construction method and protection structure
The invention relates to a half-open and half-dark tunnel construction method and a protection structure, belongs to the technical field of highway tunnel design and construction, and solves the problems of long construction time and unstable quality caused by cast-in-place retaining wall in an existing construction method. The semi-open and semi-concealed construction method for the tunnel comprises the following steps: excavating and reinforcing a side slope, constructing a pile foundation and prefabricating an assembly type retaining wall, mounting the assembly type retaining wall, constructing a large pipe shed and a cover arch at a concealed hole section, constructing an advance support and a protective arch at an open cut tunnel section, backfilling an arch crown, excavating a concealed hole and sealing a support, excavating a tunnel bottom, and replacing and supporting the tunnel bottom. The excavation volume of the highway tunnel crossing the steep road section is effectively reduced, and the safety of half-bright and half-dark construction of the highway tunnel is improved.
本发明涉及一种半明半暗隧道施工方法及防护结构，属于公路隧道设计施工技术领域，解决了现有施工方法现场浇筑挡墙，导致施工时间长、质量不稳定的问题。隧道半明半暗施工方法，包括如下步骤：边坡开挖及加固→施作桩基以及预制装配式挡墙→安装装配式挡墙→施作暗洞段大管棚及套拱→施作明洞段超前支护和护拱→拱顶回填→暗洞开挖及封闭支护→开挖隧底，进行隧底换填及支护。本发明有效降低了公路隧道穿越陡峭路段开挖量，并提高了公路隧道半明半暗施工安全性。
Half-open and half-dark tunnel construction method and protection structure
The invention relates to a half-open and half-dark tunnel construction method and a protection structure, belongs to the technical field of highway tunnel design and construction, and solves the problems of long construction time and unstable quality caused by cast-in-place retaining wall in an existing construction method. The semi-open and semi-concealed construction method for the tunnel comprises the following steps: excavating and reinforcing a side slope, constructing a pile foundation and prefabricating an assembly type retaining wall, mounting the assembly type retaining wall, constructing a large pipe shed and a cover arch at a concealed hole section, constructing an advance support and a protective arch at an open cut tunnel section, backfilling an arch crown, excavating a concealed hole and sealing a support, excavating a tunnel bottom, and replacing and supporting the tunnel bottom. The excavation volume of the highway tunnel crossing the steep road section is effectively reduced, and the safety of half-bright and half-dark construction of the highway tunnel is improved.
本发明涉及一种半明半暗隧道施工方法及防护结构，属于公路隧道设计施工技术领域，解决了现有施工方法现场浇筑挡墙，导致施工时间长、质量不稳定的问题。隧道半明半暗施工方法，包括如下步骤：边坡开挖及加固→施作桩基以及预制装配式挡墙→安装装配式挡墙→施作暗洞段大管棚及套拱→施作明洞段超前支护和护拱→拱顶回填→暗洞开挖及封闭支护→开挖隧底，进行隧底换填及支护。本发明有效降低了公路隧道穿越陡峭路段开挖量，并提高了公路隧道半明半暗施工安全性。
Half-open and half-dark tunnel construction method and protection structure
一种半明半暗隧道施工方法及防护结构
WANG GUOQING (author) / WANG CHAOJIE (author) / WANG JINGLI (author) / LI NING (author) / XU RUINING (author) / JI QIANG (author) / ZHAO WEIJUAN (author) / ZHAO MENG (author) / ZHANG XIN (author) / FENG ZHIHUA (author)
2023-12-26
Patent
Electronic Resource
Chinese
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