山区某高速公路王家寨枢纽互通方案研究

在建汶马高速公路与拟建山区某高速公路的王家寨枢纽互通布设于王家寨三岔河上。为此，结合现有高速公路项目，对地形有限、不良地质分布以及在建汶马高速公路边坡存在安全隐患、与隧道口净距较小等多因素控制条件下，针对工可方案存在的问题，初设阶段提出了3种方案进行了比选，择优推荐方案一。

Study on Wangjiazhai Hub Interchange Scheme for a Highway in Mountainous Area

Wangjiazhai hub interchange of Wenchuan—Barkam Highway under construction and a highway to be built in mountainous area is set on Sancha River, Wangjiazhai. In relation to the existing highway projects, three schemes were proposed in the initial design stage on account of the problems existed in the feasibility report and, with the consideration of multi-factor controlling, such as landform restricted, unfavorable geology distributed, potential risk in the slope along Wenchuan—Barkam Highway (under construction) and small clear distance to the tunnel entrance, the first scheme was selected.