| 高速公路隧道超大型溶洞处治技术研究 |
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| 引用本文： | 汤新能,李元松,余再富.高速公路隧道超大型溶洞处治技术研究[J].路基工程,2019,0(5):200-204. |
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| 作者姓名： | 汤新能 李元松 余再富 |
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| 作者单位： | 武汉工程大学土木工程与建筑学院,武汉,430073;武汉工程大学土木工程与建筑学院,武汉,430073;武汉工程大学土木工程与建筑学院,武汉,430073 |
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| 基金项目： | 武汉工程大学研究生教育创新基金项目（CX2017040） |
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| 摘 要： | 以湖北宜都至来凤高速公路太平隧道施工中遇到的超大型溶洞为例，根据溶洞形态和工程地质条件，通过多种方法对溶洞稳定性进行分析。结果表明:溶洞现状整体基本稳定；综合考虑溶洞稳定性评价结果、施工的安全性等，对太平隧道超大型溶洞处理技术进行研究，提出了保留顶板，洞内分别采用暗挖、明洞、立柱和梁板以及揭开顶板共4个方案，从技术支撑点、优缺点等方面进行方案比选，最终确定采用保留溶洞顶板，洞内采用明洞方案。
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| 关 键 词： | 高速公路隧道 超大型溶洞 溶洞稳定性 处治技术 明洞 |
| 收稿时间： | 2019-11-09 |
Study on Treatment Technology for Super-large Karst Cave on Highway Tunnel |
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| Abstract: | Taking the super-large karst cave encountered during the construction of Taiping Tunnel on Yidu-Laifeng Highway in Hubei as an example, its stability was analyzed according to the cave form and the engineering geological conditions in many ways. The results show that the karst cave is in stable state substantially at present. With the evaluation result of the stability and the safety of the construction taken into consideration, the treatment technology for the super-large karst cave of Taiping Tunnel was studied. Four schemes, including retaining the roof, using underground excavation, open cut tunnel, columns and stringerboards in the cave, and then uncovering the roof, were proposed and then compared from the aspects of the technical support points, advantages and disadvantages. Finally, the second scheme was selected, that is to say, it was determined to retain the roof and use open cut tunnel in the cave. |
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