四川西昌--攀枝花高速公路的酸水湾滑坡与线路选择

The Suanshuiwan Landslide and Selection of Highway Alignment of the Xichang-Panzhihua Expressway

四川西昌-攀枝花高速公路的酸水湾隧道下穿巨型古滑坡,本文从其所处的地质构造背景分析入手,简述了滑坡特征及其对工程建设的影响,并与国内的地震破坏性统计资料对比后认为,该处位于磨盘山深大断裂东侧,次级小断裂比比皆是,滑坡连连,是潜在的危险地段,因此建议改线。建议路线既能避开危险地段,又能减少隧道长度。

The Suanshuiwan tunnel of the Xichang-Panzhihua expressway passes through a giant old landslide.This paper deals with the influences of the landslide on tunnel construction based on geological and structural conditions.The survey indicates that the Suanshuiwan tunnel lies on the eastern side of the Mopanshan deep fracture where many faults and landslides are developed.Therefore,a proposal on changing the highway alignment is made.