319国道涪陵至彭水沿线滑坡发育特征

Development of Landslides from Fuling to Pengshui Section along the No.319 National Road

在涪陵至彭水长约140km范围内,319国道沿线发育有滑坡32处,发育密度约为0 23个/km,发育形式以堆积层滑坡和岩石顺层滑坡为主。在现场调查的基础上,总结和分析了沿线滑坡发育的地质环境和人为环境,结果表明,沿线的地质构造、地形地貌以及地层岩性组合是滑坡发育的主要原因,河流的侧向切蚀作用、暴雨以及人类的工程活动是滑坡形成的重要诱发因素。

Occurrence of landslide often brings great damage to human life property and the engineering activities. The No.319 National Road from Fuing City to Pengshui County is 140 km long and is placed in the Wujiang canyon area, along which the geological environment is complicated. There are 32 landslides in the section, with average density 0.23/km. The stratum rock property and the geological structure and the topographic change are the major reason of developing landslide and that the rainstorm and the erosion action of river and the human activities are the major cause of the occurrence.