宁夏地处两大沙漠边缘,风积沙分布十分广泛。给公路建设带来极大不便,如果能将风积沙有效的利用,不但可以变废为宝,还可以大大的降低工程造价。 Ningxia is located in the edge of the two deserts, the wind is widely distributed sand. This has brought great inconvenience to the highway construction. If the effective utilization of wind-blown sand can not only turn waste into treasure, but also greatly reduce the construction cost.