| 锚杆格构梁支护中格构梁最优悬臂长度讨论 |
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| 引用本文： | 王志俭,宁万辉,赵家成.锚杆格构梁支护中格构梁最优悬臂长度讨论[J].人民长江,2011,42(3):34-38. |
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| 作者姓名： | 王志俭 宁万辉 赵家成 |
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| 作者单位： | 1. 三峡大学,三峡库区地质灾害教育部重点实验室,湖北,宜昌,443002
2. 三峡大学,土木水电学院,湖北,宜昌,443002 |
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| 基金项目： | 三峡库区三期地质灾害高切坡防护工程技术科研项目，三峡大学博士启动基金 |
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| 摘 要： | 为了探索格构梁的悬臂长度对格构内力的影响，采用数值试验的方法，提出最优悬臂长度概念，并讨论了最优悬臂长度取值与锚杆格构梁系统各参数之间的关系。结果表明：格构梁跨距、地基变形模量是影响最优悬臂长度的主要因素；在边坡工程中，格构梁悬臂段的长度取0.30倍跨距可以优化格构梁的内力分布，从而节约工程造价。以三峡库区巴东县沿江路大坪段边坡锚杆格构支护系统为例，介绍了最优悬臂段在该工程中的应用情况。
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| 关 键 词： | 锚杆格构梁 悬臂段 高边坡 三峡库区 |
Discussion on optimal cantilever length for lattice frame beam in anchor structure |
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| WANG Zhijian,NING Wanhui,ZHAO Jiacheng.Discussion on optimal cantilever length for lattice frame beam in anchor structure[J].Yangtze River,2011,42(3):34-38. |
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| Authors: | WANG Zhijian NING Wanhui ZHAO Jiacheng |
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| Affiliation: | WANG Zhijian1,NING Wanhui1,ZHAO Jiacheng2 (1.Key Laboratory of Geological Hazards on Three Gorges Reservoir Area of Ministry of Education,China Three Gorges University,Yichang 443002,China,2.College of Civil and Hydroelectric Engineering,China) |
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| Abstract: | Numerical experiments were carried out to study the effects of cantilever beam length on the internal forces of the lattice,and then the concept of the optimal length of the cantilever was proposed.We discuss the relation between the optimal cantilever length and various parameters of lattice system.The results indicate that the lattice beam span and the foundation deformation modulus are the main factors affecting the optimal length of the cantilever.In slope engineering,the optimal value of cantilever len... |
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| Keywords: | lattice frame beam anchor structure cantilever high sideslope Three Gorges Reservoir Area |
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