浅谈动态优化设计在公路隧道建设中的重要性

由于隧道工程围岩状况的复杂多变以及理论上的不完善,目前实际工程中施工前设计主要依靠地勘资料与工程类比法进行,在实际施工过程中由于工程地质、水文地质及施工方法等的变化,使原设计不尽合理。文中根据《公路隧道设计规范》,结合公路隧道围岩分级法,本着尊重现场工程地质条件、施工技术条件和强化锚喷支护的原则,对某工程实例原有设计进行了优化,使隧道工程建设更安全、更经济。

Discussion of Importance of Dynamic Optimization Design in Highway Tunnel Constructions

Due to the complex and volatile situation of surrounding rock of tunnels,as well as theoretical imperfect,the current design relies mainly on the geological exploration data and engineering analogy method. Due to the change of the engineering geology,hydrogeology and construction methods,the original design is not rational in the actual construction process. Thus,combining highway tunnel surrounding rock classification method and based on the respect for the on-site engineering geological conditions,construction and technical conditions and strengthening the bolt-shortcrete support,geological workers make sure the tunnel construction safe and economical with the ＂Code for Design of Road tunnel＂ to optimize the original design in the construction process。