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| 加筋土技术的发展及工程应用问题 | |
| 引用本文： | 魏丽,骆福英,王沛. 加筋土技术的发展及工程应用问题[J]. 天津城市建设学院学报, 2006, 12(2): 96-99 |
| 作者姓名： | 魏丽 骆福英 王沛 |
| 作者单位： | 1. 天津城市建设学院,基础学科部,天津,300384 2. 中水北方勘测设计研究有限责任公司,天津,300222 3. 天津城市建设学院,土木工程系,天津,300384 |
| 基金项目： | 天津市自然科学基金;天津市高等学校科技发展基金 |
| 摘 要： | 介绍了国内外加筋土及加筋材料的发展概况，对加筋土的受力机理和设计计算方法进行了总结．摩擦加筋原理概念明确、简单，但忽略了土和筋材的模量不同而产生的不协调变形问题；准粘聚力原理则认为由于加筋与土的摩阻产生了侧压力增量△σ3，形成了一个“准粘聚力”，使土体的抗剪强度提高．讨论了目前加筋土技术在我国土木工程中的应用范围及特点，指出了加筋土技术的今后研究方向及需要解决的问题． |
| 关 键 词： | 加筋土 加筋土技术 土工合成材料 |
| 文章编号： | 1006-6853（2006）02-0096-04 |
| 收稿时间： | 2005-11-21 |
| 修稿时间： | 2005-11-21 |
Development and engineering application of reinforced earth technique |
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| WEI Li,LUO Fu-ying,WANG Pei. Development and engineering application of reinforced earth technique[J]. Journal of Tianjin Institute of Urban Construction, 2006, 12(2): 96-99 | |
| Authors: | WEI Li LUO Fu-ying WANG Pei |
| Abstract: | The development of reinforced earth and reinforced materials at home and abroad are introduced. Mechanical analysis and design methods of reinforced earth are summarized. Although friction concept of reinforced earth is simple and dear, the incompatible deformation caused by the different modulus of soil and reinforced material is ignored. Derivative cohesion concept accepted that increment Atr3 of lateral pressure results in derivative cohesion and improved shear strength of earth as a result of friction from earth and reinforced material. Finally engineering application and features of reinforced earth technique are discussed, and its development tendency and main problems are put forward respectively. |
| Keywords: | reinforced earth reinforced earth technique geosynthetic composite material |
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