重庆巫溪至陕西镇坪高速公路设计难点及对策措施

Design Difficulties and Countermeasures of the Expressway from Chongqing Wuxi to Shanxi Zhenping

为解决山区工程地质条件复杂,受控因素诸多的高速公路建设难题,以重庆巫溪至陕西镇坪高速公路总体设计为例,针对勘测难、设计难、施工难的问题,详细介绍了该类项目勘察设计的重难点及其设计优化策略。结果表明:1)在复杂山区高速公路施工前,精细化总体设计和专业化细部设计显得尤其重要;2)设计时应加强总体协调和方案比选,做好设计优化及专业间统筹衔接;3)加强地质调查,重视复杂山区桥梁、隧道、弃土场及施工便道的动态设计,确保勘察与设计的有机结合;4)通过全面的总体设计和优化设计,确保了工程的顺利进行,也为类似工程提供了宝贵的经验。

Taking the overall design of the expressway from Chongqing Wuxi to Shanxi Zhenping as an example,this paper aims to address the challenges in expressway construction in mountainous areas with complex geological conditions and numerous controlled factors.Focusing on the difficulties in survey,design,and construction,this paper elaborates on the key and difficult points of survey and design for such projects,as well as their design optimization strategies.The results show that:1)Detailed overall design and specialized detailed design are particularly important before the construction of expressways in complex mountainous areas;2)During the design process,it is essential to strengthen overall coordination,compare different design schemes,optimize the design,and ensure smooth integration between different specialties;3)Geological surveys should be strengthened,and attention should be given to the dynamic design of bridges,tunnels,spoil ground,and access roads in mountainous areas,ensuring an organic integration of survey and design;4)Through comprehensive overall design and optimization,the smooth progress of the project is ensured,providing valuable experience for similar projects.