摘要
在现有生态护坡方法的基础上,提出了水泥砂浆生态护坡、短管式生态护坡、土工布生态护坡及绳网生态护坡等4种新的生态护坡方法,并采用室内模拟试验装置对以上4种方法进行了面流冲刷的雨水入渗试验研究。通过对不同护坡形式模拟边坡在不同坡度和不同降雨强度条件下的坡体土壤含水率测试试验,分析比较了这4种模拟边坡及裸露边坡的雨水入渗差异情况。研究结果表明,不同护坡方法对坡面的雨水入渗影响显著,其中,绳网护坡具有增加雨水入渗和坡面土壤饱水层厚度的作用,有利于坡面的地表水向地下水转化,但不利于边坡稳定;短管式护坡则使模拟边坡的雨水入渗减少,并且坡面饱水层厚度及含水率变化也不随降雨历时的增加而明显增加,因此短管式护坡以及与此类似的其他方法不利于雨水入渗,但更有利于边坡稳定;而水泥砂浆护坡对雨水入渗的影响介于上述两者之间。
On the basis of four kinds of new ecological slope protection methods as eco-ce- ment slope protection, short tube ecological slope protection, geotextiles ecological slope protection and rope ecological slope protection, the experimental study for slope erosion and infiltration of rainfall was carried out with indoor simulation test device for four different ec- ological slopes. Through the test of the slop soil moisture changes for various forms of sim- ulated slope gradient and slope under different rainfall intensity, the situation of penetration of rainfall of these four different ecological protection slope forms have been compared and analyzed. The experiment shows that different material of ecological protection slope forms will remarkably change the penetration of rainfall, while the rope net slope protection could increase it, others would decrease it.
出处
《长沙理工大学学报（自然科学版）》
CAS
2015年第2期43-50,共8页
Journal of Changsha University of Science and Technology:Natural Science
基金
国家自然科学基金资助项目(51178063)
关键词
生态护坡
雨水入渗
影响因素
ecological protection slope
rainfall penetration
influence factor
