| 根系生态护坡的有限元分析 |
| |
| 引用本文： | 肖本林,罗寿龙,陈军,邓友生,郑建强.根系生态护坡的有限元分析[J].岩土力学,2011,32(6):1881-1885. |
| |
| 作者姓名： | 肖本林 罗寿龙 陈军 邓友生 郑建强 |
| |
| 作者单位： | 1. 中南大学 信息物理工程学院，长沙 410083；2. 湖北省三峡翻坝高速公路建设指挥部，湖北 宜昌 443002； 3. 湖北工业大学 土木工程与建筑学院，武汉 430068 |
| |
| 基金项目： | 交通运输部行业攻关项目资助，湖北省教育厅重点项目资助 |
| |
| 摘 要： | 生态护坡是公路建设可持续发展的要求。根据林木根系对边坡浅层加筋锚固的原理，结合现场提取刺槐根系进行试验所得的基本参数，利用有限元软件ADINA进行分析。在模拟分析过程中，根系采用弹性杆件模型，土体采用摩尔-库仑模型，从坡度的变化对整个刺槐林边坡进行模拟计算，对其应力和应变场的变化进行分析。研究结果表明，刺槐群根能改善边坡浅层土体的应力、应变场，使坡体浅层更趋稳定；边坡坡度的增加会导致坡脚应力增大、坡肩处逐渐产生拉应力及其数值逐渐增大、应变集中区的范围也扩大，此时根系护坡效果减弱
|
| 关 键 词： | 有限元法 根系固土 坡度 ADINA |
| 收稿时间： | 2010-05-25 |
Finite element analysis of eco-protection slope through roots |
| |
| XIAO Ben-lin,LUO Shou-long,CHEN Jun,DENG You-sheng,ZHENG Jian-qiang.Finite element analysis of eco-protection slope through roots[J].Rock and Soil Mechanics,2011,32(6):1881-1885. |
| |
| Authors: | XIAO Ben-lin LUO Shou-long CHEN Jun DENG You-sheng ZHENG Jian-qiang |
| |
| Institution: | 1. School of Info-physical and Geometric Engineering, Central South University; Changsha 410083 China; 2. Hubei Provincial Construction Headquarters for Highway Turning the Three Gorges Dam, Yichang, Hubei 443002, China; 3. School of Civil Engineering & Architecture, Hubei University of Technology, Wuhan 430068, China |
| |
| Abstract: | Eco-protection slope is the sustainable development of highway construction.Forest roots can reinforce and anchor surface soil of slopes.The finite elements software ADINA is used to analyze mechanism of eco-protection slope through robinia pseudoacacia roots in different slope gradients.Tests are carried out to gain basic parameters through roots at field sites.During simulation,soil model is Mohr-Coulomb,and roots model is elastic bar.The results show that robinia pseudoacacia roots group in slope can mak... |
| |
| Keywords: | ADINA |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《岩土力学》浏览原始摘要信息 |
| 点击此处可从《岩土力学》下载免费的PDF全文 |
