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发明公开
CN106437760A 大断面隧道新型多层衬砌构造 无效 - 撤回

大断面隧道新型多层衬砌构造
摘要：
大断面隧道新型隧道衬砌构造，以有效控制隧道净空变形及地表沉降，减小支护体系转换过程施工风险，实现在恶劣地质环境条件下安全、快速修建大断面隧道。包括由内而外设置的预加固支护结构、初期支护结构。所述初期支护结构外设置二次支护结构，二次支护结构外设置三次衬砌结构，二次支护结构和三次衬砌结构之间铺设防水层。所述初期支护结构采用内设钢架的喷射混凝土结构，所述二次支护结构采用钢筋混凝土结构或内设钢架的喷射混凝土结构，所述三次衬砌结构采用混凝土结构或钢筋混凝土结构。
摘要（英）：

The invention discloses a large-section tunnel novel multi-layer lining structure which is capable of effectively controlling tunnel clearance deformation and ground surface settlement, reducing construction risks in the supporting and protecting system conversion process and achieving safe and rapid construction of large-section tunnels under harsh geological environment conditions. The large-section tunnel novel multi-layer lining structure comprises a pre-reinforcement supporting and protecting structure and a primary supporting and protecting structure which are arranged from inside to outside. A secondary supporting and protecting structure is arranged outside the primary supporting and protecting structure. A tertiary supporting and protecting structure is arranged outside the secondary supporting and protecting structure. A waterproof layer is laid between the secondary supporting and protecting structure and the tertiary supporting and protecting structure. The primary supporting and protecting structure is a sprayed concrete structure internally provided with steel frames. The secondary supporting and protecting structure is a reinforced concrete structure or a sprayed concrete structure internally provided with steel frames. The tertiary supporting and protecting structure is a concrete structure or a reinforced concrete structure.

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