坡面径流状态下坡面侵蚀临界坡度研究  

Research on Critical Gradient for Slope Erosion in the State of Slope Runoff

作　　者：雷金波[1] 段华雍 

机构地区：[1]南昌航空大学,江西南昌330063

出　　处：《南昌航空大学学报（自然科学版）》2013年第1期105-108,共4页Journal of Nanchang Hangkong University(Natural Sciences)

基　　金：国家自然科学基金(51268048)

摘　　要：坡面侵蚀是引起边坡滑坡的重要影响因素,有必要开展土颗粒侵蚀机理及其影响因子的研究。通过利用泥沙运动力学理论研究了坡面径流状态下土颗粒的侵蚀机理,得出了坡面侵蚀临界坡度与各主要影响因素的关系表达式,发现该坡度不是一个常数,而是一个受这些因素影响的可变区间。The slope erosion is caused by slope landslide which is the important influence factor,so it is necessary to research the soil particle erosion mechanism and the influence factors. The soil erosion mechanism has been researched in the state of slope runoff by the theory of sediment transport mechanics. The relational expression has been obtained between critical erosion gradient with the main in- fluencing factors. It has been found that the critical erosion gradient is not a constant,but a subject to the influence of these factors on the variable interval.

关 键 词：坡面侵蚀 面蚀 水土流失 临界坡度 影响因素 

分 类 号：P333.5[天文地球—水文科学]