| 高速公路建设中不同边坡风力侵蚀特性--以银武高速公路同心至固原段为例 |
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| 引用本文： | 王晓东,张洪江,李猛,江玉林,陈宗伟,张红丽.高速公路建设中不同边坡风力侵蚀特性--以银武高速公路同心至固原段为例[J].水土保持通报,2007,27(3):97-101. |
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| 作者姓名： | 王晓东 张洪江 李猛 江玉林 陈宗伟 张红丽 |
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| 作者单位： | 1. 北京林业大学,水土保持学院,北京,100083
2. 交通部科学研究院,北京,100029 |
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| 基金项目： | 交通部西部交通建设科技项目 |
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| 摘 要： | 为研究高速公路边坡风力侵蚀的规律,选择银武高速公路同心至固原段为研究区段,通过10个小区的风蚀数据,对比分析了不同边坡的平均风蚀量,探讨了不同边坡的侵蚀规律。结果表明,土壤含水率可以不同程度地减少边坡的平均风蚀量。不同边坡土壤风蚀量有明显的差异,而且没有任何措施的松散堆积物的土壤风蚀量明显大于其它边坡。六棱砖防护措施防风效益最好,拱形框架梁防风效益次之,采用机械压实的办法防风效益最差。在降低土壤风蚀起始风速单方面,六棱砖相比拱形框架梁和机械压实更有效。
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| 关 键 词： | 高速公路建设 边坡 风力侵蚀 |
| 文章编号： | 1000-288X（2007）03-0097-05 |
| 收稿时间： | 2006/9/29 0:00:00 |
| 修稿时间： | 2006-09-292007-04-24 |
Characteristics of Wind Erosion on Different Side Slopes in Highway Construction from Tongxin to Guyuan |
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| WANG Xiao-dong,ZHANG Hong-jiang,LI Meng,JIANG Yu-lin,CHEN Zong-wei and ZHANG Hong-li.Characteristics of Wind Erosion on Different Side Slopes in Highway Construction from Tongxin to Guyuan[J].Bulletin of Soil and Water Conservation,2007,27(3):97-101. |
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| Authors: | WANG Xiao-dong ZHANG Hong-jiang LI Meng JIANG Yu-lin CHEN Zong-wei and ZHANG Hong-li |
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| Institution: | 1. College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China ; 2. China Academy of Transportation Sciences, Beijing 100029, China |
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| Abstract: | To study the law of wind erosion on highway side slopes,the highway from Tongxin to Guyuan was selected as an experimental site.The average amount of wind soil in different side slopes was analyzed,and the law of wind erosion on different side slopes was studied based on wind erosion data of ten observation plots.Results showed that soil water content could evidently reduce soil loss by wind on side slope.The amount of soil loss on different side slopes was significantly different,and the amount of soil loss on the dumping ground without any measure adopted was greater than that on other slopes.Effect of hexagon brick was the best in preventing wind erosion,and the second was arch frame-saw.Effect of mechanical press was worst in preventing wind erosion.A correlation between wind erosion intension and wind speed was founded through analyses.Hexagon brick was more effective than arch frame-saw in lowering initial wind speed. |
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| Keywords: | highway construction side slope wind erosion |
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