摘要
通过野外调查对公路黄土洞穴水土流失机理进行研究 ,结果表明 :路堑边坡洞穴侵蚀的主要原因是由于地形因素的改变 ;路基、路面洞穴侵蚀的主要原因是其特殊的汇水作用 ;路基边坡洞穴侵蚀的主要原因是施工过程中产生的大量填土或弃土的特殊土性所致。黄土高原公路黄土洞穴分布规律表明 。
By means of field investigation, the mechanism of the water and soil loss caused by the loess cave hazard in highway are deeply analyzed, which shows that the main cause of cave erosion in trench slope is the topographic change, that in road surface is the catchment function, and that in subgrade slope is special property of the disturbed soil. The distribution of cave erosion shows that the cave erosion gradually decreases from northwest to southeast.
出处
《公路》
北大核心
2004年第12期70-73,共4页
Highway
基金
交通部西部重点交通建设科技攻关项目 ( 2 0 0 13 18812 13 )
