Numerical Simulation of Root Reinforcement to Stability of Slope

FU Hai-feng; JIANG Zhi-qiang; ZHANG Shu-feng

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Numerical Simulation of Root Reinforcement to Stability of Slope

- Numerical Simulation of Root Reinforcement to Stability of Slope
- Bulletin of Soiland Water Conservation Vol. 26, Issue 1, Pages: 92-94(2007)
- 作者机构：
  
  1. 天津大学建筑工程学院,天津,300450
  2. 河海大学地质岩土工程系,南京,210098
- 作者简介：
- 基金信息：
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- Published：2007
- 稿件说明：
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FU Hai-feng, JIANG Zhi-qiang, ZHANG Shu-feng. Numerical Simulation of Root Reinforcement to Stability of Slope[J]. Bulletin of Soiland Water Conservation, 2007, 26(1): 92-94.
DOI：

FU Hai-feng, JIANG Zhi-qiang, ZHANG Shu-feng. Numerical Simulation of Root Reinforcement to Stability of Slope[J]. Bulletin of Soiland Water Conservation, 2007, 26(1): 92-94. DOI：

摘要

随着生态环境保护的要求日益提高

植物护坡工程的理论和实践研究得到了发展。由于植物根系及其分布的随机性和复杂性

根土相互作用机理以及根系固坡的定量化研究工作还很不深入。本文对根系固土力学机制和根土复合介质抗剪强度模型进行了评述

将根系对土体的强度贡献以“表观凝聚力”表示

采用数值方法对植物根系固坡效应及其稳定性进行了分析

考虑根系强度增量以及护坡深度

在多种情况下进行了边坡整体安全系数计算。分析结果可为植物根系的力学效应评判、护坡植物的选取

以及其优化布设等纵深研究方面提供了理论基础。

Abstract

With the demand of ecological environment protection

research on slope protection engineering by vegetation has received extensive development.However

few quantitative works have been done for the root-soil interaction and the effects of root reinforcement to slope due to the randomness and complexity of the root distribution.The mechanism of root reinforcement to soil and the shearing model of root-soil composite medium are discussed.The contribution of root reinforcement to shear strength is considered to have the characteristics of cohesion

and the effects of root reinforcement to slope are analyzed by numerical simulation.The safety factors of slope are computed in several kinds of cases.The results of this study may provide theoretical foundations to the deeper research works such as assessments of root reinforcement

selections of vegetation and the corresponding arrangement.

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