| 刺槐林边坡稳定性的条分法分析 |
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| 引用本文： | 张超波,陈丽华,刘秀萍,杨启红.刺槐林边坡稳定性的条分法分析[J].北京林业大学学报,2008(Z2). |
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| 作者姓名： | 张超波 陈丽华 刘秀萍 杨启红 |
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| 作者单位： | 水土保持与荒漠化防治教育部重点实验室北京林业大学水土保持学院; |
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| 基金项目： | 国家自然科学基金项目(30571531); “973”国家重大基础研究项目(2002CB111502) |
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| 摘 要： | 该文利用瑞典条分法研究了林木根系对边坡稳定性的影响,分析了造林密度、林龄、坡长、坡度和降雨等因素对刺槐林边坡稳定性的影响。结果表明:①造林密度增大、林龄增长,边坡最小安全系数均减小,边坡稳定性略微降低,影响可以忽略不计。②边坡坡长增加、边坡坡度增加,滑动面最小安全系数均减小,边坡稳定性明显降低。③降雨条件下,土壤含水量增加,边坡最小安全系数减小,边坡越来越不稳定。结合边坡最危险情况下的造林密度、林龄、坡长、坡度和降雨条件,分析无林边坡与造林边坡的稳定性。结果表明,在相同的条件下,造林边坡的最小安全系数比无林边坡大、稳定性更高,林木根系能提高边坡的稳定性。
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| 关 键 词： | 根系 安全系数 边坡稳定性 瑞典条分法 根土复合体 |
Stability analysis of Robinia pseudoacacia forest side slope with slice method |
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| ZHANG Chao-bo,CHEN Li-hua,LIU Xiu-ping,YANG Qi-hong.Key Laboratory of Soil , Water Conservation & Desertification Combating of Ministry of Education,School of Soil , Water Conservation,Beijing Forestry University,P.R.China..Stability analysis of Robinia pseudoacacia forest side slope with slice method[J].Journal of Beijing Forestry University,2008(Z2). |
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| Authors: | ZHANG Chao-bo CHEN Li-hua LIU Xiu-ping YANG Qi-hongKey Laboratory of Soil Water Conservation & Desertification Combating of Ministry of Education School of Soil Water Conservation Beijing Forestry University PRChina |
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| Institution: | ZHANG Chao-bo,CHEN Li-hua,LIU Xiu-ping,YANG Qi-hong.Key Laboratory of Soil , Water Conservation & Desertification Combating of Ministry of Education,School of Soil , Water Conservation,Beijing Forestry University,100083,P.R.China. |
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| Abstract: | To study the effect of root system on slope stability,Swedish slice method was conducted.The authors also analyzed the effect of density of cultivation,stand age,slope length,slope gradient and rainfall on Robinia pseudoacacia forest slope stability.Results indicate that when the density of cultivation and stand age increased,the minimum safety factor decreased,the slope stability slightly reduced,and its effect could be neglected.The minimum safety factor is decreasing obviously as slope length and slope g... |
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| Keywords: | root system safety factor side slope stability Swedish slice method root-soil composite |
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