| 一种确定预应力锚索在地下工程支护设计中自由段长度的方法 |
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| 引用本文： | 刘桂宏,罗斌. 一种确定预应力锚索在地下工程支护设计中自由段长度的方法[J]. 公路交通技术, 2014, 0(2): 97-98,102 |
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| 作者姓名： | 刘桂宏 罗斌 |
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| 作者单位： | [1]重庆交通大学土木建筑学院,重庆400074 [2]招商局重庆交通科研设计院有限公司,重庆400067 |
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| 摘 要： | 随着地铁地下车站大跨径洞室的修建，出现了很多围岩坍塌病害问题，预应力锚索通过施加预应力对洞室围岩有良好的支护效果。针对地下洞室顶部的围岩特性，介绍在其支护设计中，确定预应力锚索自由段长度的一种方法。
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| 关 键 词： | 预应力锚索 地下工程 自由段长度 |
A Method of Determining Length of Free Section of Prestressed Anchored Cable in Design of Support for Underground Works |
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| LIU Guihong,LUO Bin. A Method of Determining Length of Free Section of Prestressed Anchored Cable in Design of Support for Underground Works[J]. Technology of Highway and Transport, 2014, 0(2): 97-98,102 |
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| Authors: | LIU Guihong LUO Bin |
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| Affiliation: | LIU Guihong,LUO Bin |
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| Abstract: | With construction of large-span cavities at underground stations of metros, many disaster problems of wall-rock collapse occur, the prestressed anchored cables with application of prestress exhibits perfect supporting effect. In allusion to wall-rock characteristics on the top of underground cavities, this paper introduces a method of determining the length of free section of prestressed anchored cable in design of support. |
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| Keywords: | prestressed anchored cable underground works length of free section |
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