| 山区长大纵坡段某隧道出口避险车道设计方案研究 |
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| 引用本文： | 黄建峰,孙平.山区长大纵坡段某隧道出口避险车道设计方案研究[J].路基工程,2018,0(4):201-204. |
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| 作者姓名： | 黄建峰 孙平 |
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| 作者单位： | 中交第二公路勘察设计研究院有限公司, 武汉 430056 |
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| 摘 要： | 以高海拔长大纵坡段某隧道出口避险车道为工程依托，通过对避险车道不同形式的分析，根据设计细则的避险车道长度计算公式，对不同纵坡条件下，不同材料、不同初速度驶入避险车道的车辆进行了计算，得出了满足安全性要求的避险车道最小长度，为合理长度提供了依据。根据实际情况，对两个方案主要技术经济指标进行对比后，选择上坡式避车道为工程实施方案。
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| 关 键 词： | 避险车道 纵坡坡度 初始速度 安全性要求 |
| 收稿时间： | 2019-11-12 |
Study on Design Scheme of Escape Lane at Exit of a Tunnel at Long and Large Longitudinal Slope Section |
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| Abstract: | This paper was based on the escape lane a exit of a tunnel at long and large longitudinal slope section at the high altitude. Throuhg the analysis of different forms of escape lanes, according to the escape lane length calculation formula in the design details, the calculation was made for the vehicles with different materials and different initial velocities driving in the escape lane under different longitudinal conditions, and the minimum length the escape meeting the safety requirements was determined, which provided the basis for the reasonable length. According to the actual situation, after comparing the two schemes on technical and economic indexes, the uphill type escape lane was selected as the project implementation scheme. |
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