山区高速公路弃土场排水与防护设计

Drainage and Protection Design of Waste Dump in Mountainous Expressway

山区高速公路地形起伏大,桥隧比高、大挖方段落多,沿线土石弃方量大.在目前新形势下,弃土场的设置已成为前期外业调查以及内业设计中的重点和难点.论文结合四川在建的某高速公路一处典型弃土场设计,总结分析了沟谷型弃土场排水、防护设计要点,以供参考.

There are many sections with high ratio of bridge to tunnel,large excavation,and large amount of earth and stone spoils along the highway.In the current new situation,the setting of spoil ground has become the focus and difficulty in the field investigation and interior design.Based on the design of a typical spoil ground of a highway under construction in Sichuan province,this paper summarizes and analyzes the key points of drainage and protection design of the valley type spoil ground,for reference.