[1]杨永红,刘淑珍,王成华,等.含根量与土壤抗剪强度增加值关系的试验研究[J].水土保持研究,2007,14(03):287-288,291.
　YANG Yong-hong,LIU Shu-zhen,WANG Cheng-hua,et al.Experimental Research on the Relation Between Increasing Value of Shearing Strength with Root System[J].Research of Soil and Water Conservation,2007,14(03):287-288,291.
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含根量与土壤抗剪强度增加值关系的试验研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 14 期数: 2007年03期 页码: 287-288,291 栏目: 出版日期: 1900-01-01
Title:
Experimental Research on the Relation Between Increasing Value of Shearing Strength with Root System
作者:
杨永红1, 刘淑珍3, 王成华3, 肖清华2
1. 成都理工大学地质灾害防治与地质环境保护国家专业实验室, 成都, 610059;
2. 西南交通大学土木工程学院, 成都, 610031;
3. 中国科学院成都山地灾害与环境研究所, 成都, 610041
Author(s):
YANG Yong-hong1, LIU Shu-zhen3, WANG Cheng-hua3, XIAO Qing-hua2
1. National Specialty Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu, 610059;
2. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China;
3. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences and Ministry of Water Conservancy, Chengdu 610041, China
关键词:
含根量; 非饱和土; 根系; 抗剪强度
Keywords:
root weight; unsaturated soil; root system; shear strengh
分类号:
TU432;S157.1
摘要:
通过对裸地、车桑子灌木林地不同深度土壤在天然含水量情况下的直剪试验，及对车桑子根系沿垂直方向的分布情况的调查，研究了含根量对非饱和土抗剪强度的影响.结果表明，植物根系具有提高非饱和土抗剪强度的作用，含根量沿垂直方向呈指数函数规律分布，黏聚力和内摩擦角沿垂直方向的增加值均与含根量成正相关关系.
Abstract:
It is analyzed that the impacts of root weight on shear strength of unsaturated soil through direct shearing tests for unsaturated soil of different depth and various vegetation types which consist of bare soil and switch sorrel shrubbery under natural moisture contents and through the investigation of root system distributing along vertical profile.The results show that root system can increase shearing strength of unsaturated soil and that root weight is distributing according to exponential function.It is also shown that the relationship between root system and increasing value of friction angle and cohesion along vertical profile is positive relative.

参考文献/References:

[1] 周德培, 张俊云.植被护坡工程技术[M].北京:人民交通出版社, 2003.4-5, 62-63.
[2] 王治国, 张云龙, 刘徐师, 等.林业生态工程学[M].北京:中国林业出版社, 2000.111-112.
[3] 王可钧, 李焯芬.植物固坡的力学简析[J].岩石力学与工程学报, 1998, 17(6):687-691.
[4] 朱清科, 陈丽华, 张东升, 等.贡嘎山森林生态系统根系固土力学机制研究[J].北京林业大学学报, 2002, 24(7):64-67.
[5] 郭小平, 朱金兆, 周心澄, 等.植被护坡技术及其应用[J].中国水土保持科学, 2004, 2(4):112-116.

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　YANG Yong-hong,WANG Cheng-hua,LIU Shu-zhen,et al.Experimental Research on Improving Shear Strength of Soil in Surface Landslide by Root System of Different Vegetation Type[J].Research of Soil and Water Conservation,2007,14(03):233.
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备注/Memo

收稿日期:2006-5-25
作者简介:杨永红(1973- )，男，博士后，研究方向：地质灾害防治.

更新日期/Last Update: 1900-01-01