| 土壤-根系复合体工程常数的理论研究 |
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| 引用本文： | 郭维俊,黄高宝,王芬娥,吴建民.土壤-根系复合体工程常数的理论研究[J].甘肃农业大学学报,2006,41(2):70-73. |
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| 作者姓名： | 郭维俊 黄高宝 王芬娥 吴建民 |
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| 作者单位： | 1. 甘肃农业大学工学院
2. 甘肃农业大学农学院,甘肃,兰州,730070 |
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| 基金项目： | 国家“863”项目:北方干旱内陆河灌区节水农业综合技术体系集成与示范(2002AA623191) |
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| 摘 要： | 根据土壤的基本特性、土力学的基本理论和复合材料力学的基本方法,分析了土壤-根系复合体的力学特性.运用Whitney-Riley模型,推导出土壤-根系复合体根系生长方向的弹性模量EL、垂直于根系生长方向的弹性模量ET和根系生长平面的剪切模量GLT等工程常数的理论计算公式,为进一步研究土壤-根系复合体工程特性提供了一种方法,具有一定的参考价值.
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| 关 键 词： | 土壤-根系复合体 Whitney-Riley模型 弹性模量 |
| 文章编号： | 1003-4315（2006）02-0070-04 |
| 收稿时间： | 2005-12-18 |
| 修稿时间： | 2005-12-18 |
Theoretical study on the engineering modulus of the soil-root complex |
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| GUO Wei-jun,HUANG Gao-bao,WANG Fen-e,WU Jian-min.Theoretical study on the engineering modulus of the soil-root complex[J].Journal of Gansu Agricultural University,2006,41(2):70-73. |
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| Authors: | GUO Wei-jun HUANG Gao-bao WANG Fen-e WU Jian-min |
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| Institution: | 1. College of Engineering,Gansu Agricultural University,Lanzhou 730070; 2. College of Agronomy,Gansu Agricultural University,Lanzhou 730070,China |
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| Abstract: | According to specific properties of soil,basic theory of soil mechanics and methods of mechanics of composite materials,mechanical characteristics of the soil-root complex were analyzed in this paper.Applying the Whitney-Riley model to the soil-root complex,calculating formulas,which were related to modulus of elasticity E_(L)in direction of plant roots growth,modulus of elasticity E_(T) to be vertical to direction of plant roots growth and shearing modulus G_(LT)in plane of plant roots growth,were established.A method was come up with for the further research of engineering properties of soil-root complex,which has some referenced value on a certain degree. |
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| Keywords: | soil-root complex Whitney-Riley model modulus of elasticity |
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