| 公路黄土边坡坡面冲刷破坏的临界坡度研究 |
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| 作者单位： | 长安大学地质工程与测绘工程学院 陕西西安710054
(李亚兰，陈志新，宋飞)，中铁十一局集团建安公司 湖北襄樊441003
(张桥中)，山西省运城市禹都大道214地质队 山西运城044000(田安家) |
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| 摘 要： | 通过泥沙运动力学分析了在坡面流作用下土颗粒的受力情况及其冲刷机理,得出冲刷的临界坡度是一个变量,它与土的干密度和内摩擦角存在一定的函数关系,理论分析得到的临界坡度与室内模拟人工降雨得到的临界坡度结果基本接近,说明理论分析是合理可行的。
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| 关 键 词： | 坡面 临界坡度 函数关系 |
Research on Critical Gradient for Erosion of the Highway Slope in Loess Area |
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| Authors: | LI Ya-lan CHEN Zhi-xin ZHANG Qiao-zhong SONG Fei TIAN An-Jia |
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| Institution: | LI Ya-lan~1,CHEN Zhi-xin~1,ZHANG Qiao-zhong~2,SONG Fei~1,TIAN An-Jia~3 |
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| Abstract: | By means of the scil's dynamics,erosion mechanism of the slope and the state of stress are researched under the runoff of the slope.The result is gained that the critical gradient is not constant,and it is functional relationship with the dry density and angle of interal friction.By using the simulated experiments of artificial rainfall,the theoretic critical gradient close to the result of experiments.The result of the paper is reasonable and feasible. |
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| Keywords: | Slope Critical gradient Functional relationship |
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