塔里木沙漠公路沿线的起沙风与输沙强度

THE SAND MOVING VELOCITY AND THE SAND TRANSPORT STRENGTH ALONG THE DESERT HIGHWAY IN TARIM BASIN

塔里木沙漠公路绝大部分路段穿越流沙地段，风沙活动十分强烈，因此，机械防沙带的设置显得十分关键。由于起沙风的统计分析和输沙强度的定量计算是防沙工程设计中的最主要依据之一。该文在大量统计起沙风和野外实地观测的基础上，进行输沙强度的数值计算及分析后指出：由沙漠边缘向内部深入，起沙风更加东偏，输沙强度更大和更为集中。

The majority of desert highway in Tarim basin passes through the shifting sand areas where wind sand activities are very violent. So, the establishment of sand barrier systems is very importent. Sand moving wind velocity and sediment transport strength are the fundmental data in the building of sand barrier systems. This paper, based on the field survey and observation, statistical analysis of sand moving wind velocity and the numerical calculation of sediment transport strength,pointed out that the more deep to the hinterland, the more northeast by east of sand moving velocity and the more strong and concentrated of sediment transport.