| 造林土质边坡浅层平面滑坡模型的初步研究 |
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| 引用本文： | 张超波,陈丽华,冀晓东,周朔,甘敬,王小平,李金海. 造林土质边坡浅层平面滑坡模型的初步研究[J]. 北京林业大学学报, 2009, 31(5): 8-11 |
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| 作者姓名： | 张超波 陈丽华 冀晓东 周朔 甘敬 王小平 李金海 |
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| 作者单位： | 1 北京林业大学水土保持与荒漠化防治教育部重点实验室 2 北京市园林绿化局 |
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| 基金项目： | 国家自然科学基金项目(30571531、30872067);;国家林业局林业公益性行业科研专项经费项目(200804022);;“十一五”国家科技支撑计划项目(2006BAD03A0201);;北京市科技计划重大项目(D0706001000091) |
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| 摘 要： | 造林土质边坡容易发生浅层平面滑坡。基于极限平衡理论，综合考虑土质边坡上林木根系的力学加固土壤作用和水文增加基质吸力效应，以及林木附加自重对边坡稳定的负面效应，建立了一个用来评价造林土质边坡浅层平面滑坡的分析模型。所有模型参数中土壤内摩擦角和边坡坡度的微弱变化能引起边坡安全系数较大浮动，而林木附加自重的变化对安全系数的影响较小。造林土质边坡浅层滑坡分析模型中林木根系对土壤的力学加固作用采用了修正的植物根系提高土壤抗剪强度的简单力学增强模型，相比以往类似边坡稳定性模型，分析模型显著提高了预测边坡稳定的准确性。
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| 关 键 词： | 造林边坡 浅层平面滑坡 分析模型 边坡稳定性 根系固土 |
| 收稿时间： | 1900-01-01 |
Model of assessing shallow planar landslide of forested soil side slope |
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| ZHANG Chao-bo,CHEN Li-hua,JI Xiao-dong,ZHOU Shuo,GAN Jing,WANG Xiao-ping,LI Jin-hai. Model of assessing shallow planar landslide of forested soil side slope[J]. Journal of Beijing Forestry University, 2009, 31(5): 8-11 |
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| Authors: | ZHANG Chao-bo CHEN Li-hua JI Xiao-dong ZHOU Shuo GAN Jing WANG Xiao-ping LI Jin-hai |
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| Affiliation: | 1 Key Laboratory of Soil and Water Conservation & Desertification Combating of Ministry of Education, Beijing Forestry University, 100083, P.R. China; 2 Beijing Municipal Bureau of Landscape and Forestry, 100029, P. R. China. |
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| Abstract: | Forested soil side slope is prone to meet with shallow planar landslide.Based on the limit equilibrium theory,the paper tries to establish an analytical model to assess shallow planar landslide of the forested soil side slope,taking into account of the positive effects of mechanically reinforcing soil and hydrologically improving matric suction on slope by woody roots,as well as the negative effects of additional weight of trees.In all parameters of the model,minute variation of soil internal friction and s... |
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| Keywords: | forested side slope shallow planar landslide analytical model side slope stability soil reinforcement by roots |
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