| 既有地下结构用于地铁工程的可行性研究(II) |
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| 引用本文： | 姜庆滨.既有地下结构用于地铁工程的可行性研究(II)[J].世界地震工程,2005,21(2):105-109. |
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| 作者姓名： | 姜庆滨 |
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| 作者单位： | 哈尔滨市人民政府轨道交通办公室,黑龙江,哈尔滨,150001 |
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| 摘 要： | 为了评价7381工程现在用于地铁运营的安全性，基于现场隧道衬砌的检测结果，对主洞衬砌和车站三联拱的承载能力进行了计算。通过多种力学模型讨论衬砌所承受的围岩压力，并依据比较结果，推荐泰沙基模型．计算结果表明衬砌结构承载能力满足现行有关规范要求。对衬砌存在的损伤和劣化进行了机理分析，并提出了有针对性的治理方法。结合地质勘查结果和衬砌结构使用寿命评估结果得出：哈尔滨7381工程经整治后可以用于地铁运营，其剩余使用寿命估算为80年。
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| 关 键 词： | 承载能力 劣化机制 使用性 |
| 文章编号： | 1007-6069(2005)02-0105-05 |
| 修稿时间： | 2005年3月16日 |
The feasibility of existing underground structure used for subway (II) |
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| JIANG Qing-bin.The feasibility of existing underground structure used for subway (II)[J].World Information On Earthquake Engineering,2005,21(2):105-109. |
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| Authors: | JIANG Qing-bin |
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| Abstract: | In order to evaluate the feasibility of the tunnel constructed early in 1970s, load bearing capability of the main tunnel and the connected three arcs at station area is analyzed by finite element method. The Terzaghi model is employed for determining of wall rock pressure after comparison of five models. The results show that the tunnel satisfies the relevant code in load bearing capability. The structural damage and degradation mechanism of the tunnel are analyzed, and corresponding countermeasures are proposed. The conclusion obtained from the tests and the analysis of the tunnel is that this tunnel can be used for current subway after properly renovated, the remainder service life is estimated at 80 years. |
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| Keywords: | load bearing capability degradation mechanism serviceability |
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