| 系统可靠性理论在肋柱锚杆体系中的应用 |
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| 引用本文： | 唐仁华,陈昌富.系统可靠性理论在肋柱锚杆体系中的应用[J].公路交通科技,2011,28(1):37-41. |
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| 作者姓名： | 唐仁华 陈昌富 |
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| 作者单位： | 湖南大学土木工程学院,湖南长沙410082 |
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| 基金项目： | 国家自然科学基金资助项目（50878082）；交通部西部交通建设科技资助项目（200631880237）；湖南省自然科学基金资助项目（09JJ3104） |
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| 摘 要： | 运用系统可靠性理论，建立了锚杆挡墙中肋柱锚杆体系的系统可靠性模型。根据规范推荐的主动土压力的计算方法，考虑锚杆的多种失效方式，导出了肋柱锚杆体系的结构功能函数。编制程序对算例进行分析计算，得到了锚杆系统不同破坏模式下的可靠指标。最后讨论了随机变量的变异性对系统可靠度的影响以及单根锚杆可靠指标随岩土体深度的变化，发现参数φ的变异性对锚杆体系可靠指标的影响最大，单根锚杆的可靠度随深度迅速降低
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| 关 键 词： | 道路工程 系统可靠指标 结构功能函数 肋柱锚杆体系 随机变量 |
| 收稿时间： | 2009-01-23 |
System Reliability Theory Applied to Ribbed Anchor System |
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| TANG Renhua,CHEN Changfu.System Reliability Theory Applied to Ribbed Anchor System[J].Journal of Highway and Transportation Research and Development,2011,28(1):37-41. |
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| Authors: | TANG Renhua CHEN Changfu |
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| Institution: | Institute of Geotechnical Engineering, Hunan University, Changsha Hunan 410082, China |
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| Abstract: | Based on the system reliability theory,a model of ribbed anchor system in anchor retaining wall was built.According to the calculation method of active soil pressure recommended by the relative specification,considering the influence of anchor's several failure modes,the structural performance function of the ribbed anchor system was derived.By the program composition for a given calculation example,the reliability index under various anchor failure modes was obtained.In the end,the influence of random vari... |
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| Keywords: | road engineering system reliability index structural performance function ribbed anchor system random variable |
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