沙漠公路边坡冲刷形态及发展规律

Formation and Developing Law of Desert Highway Slope Erosion

根据毛乌素沙漠自然环境和公路边坡冲刷的实地调查成果，分析自然状态下降水对风沙坡面的影响以及风沙路基边坡冲刷一般原因，总结风沙路基边坡冲刷从形成出现到导致路基破坏可以分为坡面整体冲刷、冲沟形成发展和冲沟扩展破坏三个典型阶段，并论述各阶段发展规律，说明风沙边坡冲刷具有历时短、发展快、破坏大的特点，建议在工程建设中高度重视。

The paper analyses the effect of precipitation on aeolian slope and the eaurse of aeolian subgrade slope erosion based on natural environment of Maowusu desert and the results of field work. , and sums up the three phrases- - -slope surface scouring, gully development, gully erosion from the forming aeolian subgrade to its damage, finaly expounds developing laws of each phrase, as well as feastures of aeolian slope with short period of time, quick deveoping and serious damage, attaches great importantce to it during eonstructuin.