隧道动态开挖施工工法

Dynamic tunnel excavation construction method

隧道施工中,机械地执行管理程序,僵化、教条地执行设计图纸,当遇到掌子面围岩地质情况较好时,开挖过程中的偷工减料和材料浪费现象比较严重;而掌子面围岩地质情况差时,极易造成坍塌或初期支护变形开裂,增加加固处理或换拱费用。采用动态开挖施工工法,保证开挖过程顺利有序,降本增效,确保质量和安全。

During the tunnel construction,the management procedures are executed mechanically,and the design drawings are implemented rigidly and dogmatically.When the geological conditions of the surrounding rock of the tunnel face are good,the phenomenon of cutting corners and wasting material during the excavation is serious.However,if the geological conditions of the surrounding rock are poor,it can easily cause collapse or deformation and cracking of the primary lining,and increase the cost of reinforcement treatment or arching.The use of dynamic excavation construction methods guarantees a smooth and orderly way of excavation process,thereby reducing costs,increasing efficiency and ensuring quality and safety.