国道214线西藏段地质灾害遥感调查与评价

Investigation and evaluation of geological hazards using remote sensing in Tibet segment of national highway 214

国道214线西藏段位于西藏东南部,地形地貌复杂,构造发育,是地质灾害的多发地区。利用以往资料、ETM遥感影像解译及野外调查,在公路沿线圈定出崩塌76处、滑坡26处、泥石流沟101条,并对这些地质灾害的发育状况和危害特征进行了评价。

The Tibet segment of national highway 214 lies in Southeastern part of Tibet. It has complex landform and geo-tectonic movement, causing geological hazards happen frequently. Based on the historical data, ETM interpretation and the field investigation, the authors places of landslides and 101 places of mudflows have determined that there are 76 places of rockfalls, 26 along the highway. The developing state and harmful characteristics of these geological hazards have been evaluated.