修筑内蒙古自治区三道坎至吉兰太盐池公路中,曾经过各种砂漠地区,其中有十八公里长的大砂沟,系砂山被贺兰山水冲成宽仄不等的砂沟,山上为流砂,不长植物,山高自几公尺至几十公尺,山沟内有较高的长有稀少砂区植物的台地,也有两砂山间夹以不长植物的河槽。其中也有较平坦的长有稀少植物的半固定砂区及密长植物的固定砂区。兹就在这些地区筑路的点滴经验介绍如下:一、流砂地区三吉路大砂沟段路线通过十八公里流砂地区,除有 In the Inner Mongolia Autonomous Region from three Dakekan to Jilan Taiyanchi highway, had a variety of desert areas, of which 18 km long Dashaogou, Department of sand hills were Helan landscape into a wide range of sand ditch, the mountain is Flowing sand, not long plants, mountains and high from a few meters to tens of meters, the ravine has a higher plant area with rare sand plants, but also sand between two sand folder with no long plant channel. There is also a relatively flat semi-fixed sand zone with rare plants and a fixed sand zone with dense plants. Here is a bit of experience in road construction in these areas are described below: First, the sand area Sanji Road Dashaogou route through 18 kilometers of sand area, except