摘要
通过6个不同坡度、土壤和植物措施配置的高速公路边坡模拟试验小区,探讨了暴雨和径流冲刷条件下模拟边坡的细沟形成机理及其侵蚀特征。结果表明,草地几乎郁闭的沙砾土坡面只在降雨末期产生少量细沟;而种植灌木的褐黄土和料礓石的坡面细沟发育明显、形态变化复杂,细沟最大宽度为18.4 cm,最大深度为16.5 cm。因此采取工程措施与生物措施二者相结合的办法,才能达到真正的边坡防护效果。
Six plots of simulated speedway slope with different gradients are studied. Soil and vegetation measures are made to study the mechanism and characteristics of rill development on simulated slopes under rainfall and flow scouring. The results show small rills develop on sandstone slopes planted with lawn of much cover during the final term of rainfall. However, rills develop obviously and with complex shape on loess and gravel slopes planted with shrubs. The maximum width and depth of rill is 18. 4 and 16. 5 cm respectively. The combination of engineering measures and vegetation measures is the best choice to protect speedway slopes.
出处
《水土保持通报》
CSCD
北大核心
2004年第1期16-18,共3页
Bulletin of Soil and Water Conservation
基金
洛界高速公路边坡植物防护设计项目
关键词
边坡防护
高速公路
植物措施
细沟
slope protection
speedway
vegetation measures
rill
