| 框架预应力锚杆柔性边坡支护结构设计和施工中的若干问题探讨 |
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| 引用本文： | 周勇,朱彦鹏,叶帅华.框架预应力锚杆柔性边坡支护结构设计和施工中的若干问题探讨[J].岩土力学,2011,32(Z2):437-443. |
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| 作者姓名： | 周勇 朱彦鹏 叶帅华 |
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| 作者单位： | 1. 兰州理工大学 甘肃省土木工程防灾减灾重点实验室，兰州 730050；2. 兰州理工大学 西部土木工程防灾减灾教育部工程研究中心，兰州 730050 |
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| 基金项目： | 国家自然科学基金资助项目(No.50978129); 兰州理工大学博士科研基金项目(No.BS04200902) |
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| 摘 要： | 框架预应力锚杆柔性边坡支护结构是在预应力锚杆柔性支护技术基础上发展起来的，用于深基坑支护或提高边坡稳定性的一种新型主动加固技术。为深入了解其工作性能和作用机制，促进该项技术快速发展，对其设计和施工中的若干问题进行了分析讨论。结合某实际边坡加固工程，具体研究设计中的问题包括：安全系数取值、支护结构承载力和稳定性双重控制的分析设计法、坡角的设计、最下面一排锚杆的位置确定、锚杆锚固段长度和自由段长度分析、基础桩的作用分析、伸缩缝的设置。另外，讨论了施工中的几个关键问题：修坡放线、锚杆灌浆、锚杆预应力的施加和超开挖。最后，给出了一些定性化和定量化的结论，提出了合理化建议，为进一步认识框架预应力锚杆柔性边坡支护结构的工作性能和作用机制提供了依据，同时可供工程技术人员进行设计和施工时参考
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| 关 键 词： | 边坡工程 预应力锚杆 柔性边坡支护结构 安全系数 设计 施工 |
| 收稿时间： | 2011-04-16 |
Discussion on several issues about design and construction of grillage flexible slope supporting structure with prestressed anchors |
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| ZHOU Yong,ZHU Yan-peng,YE Shuai-hua.Discussion on several issues about design and construction of grillage flexible slope supporting structure with prestressed anchors[J].Rock and Soil Mechanics,2011,32(Z2):437-443. |
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| Authors: | ZHOU Yong ZHU Yan-peng YE Shuai-hua |
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| Institution: | 1. Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou 730050, China; 2. Northwest Center for Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China |
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| Abstract: | Grillage flexible slope supporting structure with prestressed anchors is a new active reinforcement technique developed from the prestressed anchor flexible retaining method for the supporting of deep foundation excavations or the improvement of the stability of existing slopes.In order to better understand its service behaviors and working mechanism,a few issues about the design and construction of this kind of supporting structure are discussed,so as to accelerate its rapid development.Based on a concrete... |
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| Keywords: | slope engineering prestressed anchor flexible slope supporting structure safety factor design construction |
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