| 地质雷达无损检测在隧道二次衬砌中的应用 |
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| 引用本文： | 王红良,张运良,安永林,彭立敏.地质雷达无损检测在隧道二次衬砌中的应用[J].铁道工程学报,2008(11). |
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| 作者姓名： | 王红良 张运良 安永林 彭立敏 |
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| 作者单位： | [1]浙江华恒交通监理咨询有限公司,浙江绍兴312000 [2]中南大学,长沙410075 |
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| 摘 要： | 研究目的：运营隧道二次衬砌的病害检测、维修加固对于保证隧道的行车安全和衬砌的受力安全等具有重要的意义。本文以地质雷达检测蕉溪岭隧道群二次衬砌的病害，以直刚法研究空洞病害对二次衬砌的影响，并分析其原因，同时针对空洞大小提出一些相应的整治措施。
研究结论：二次衬砌的病害原因主要是拱顶背后存在空洞及渗漏水。空洞的存在使得二次衬砌的受力复杂、不利，且拱顶和拱腰为受力的薄弱位置。拱顶背后空洞存在的主要原因是施工单位对设计意图理解不到位，未按新奥法施工，其次是二次衬砌封顶困难等。拱顶背后空洞较多时必须进行处理，以使二衬结构处于良限的受力状态，确保营运安全。
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| 关 键 词： | 隧道工程 地质雷达 无损检测 二次衬砌 直刚法 安全评估 |
The Application of Nondestructive Testing Using Radar in Tunnel Lining |
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| WANG Hong-liang ,ZHANG Yun-liang ,AN Yong-lin ,PENG Li-min.The Application of Nondestructive Testing Using Radar in Tunnel Lining[J].Journal of Railway Engineering Society,2008(11). |
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| Authors: | WANG Hong-liang ZHANG Yun-liang AN Yong-lin PENG Li-min |
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| Institution: | WANG Hong-liang 1,ZHANG Yun-liang 2,AN Yong-lin 2,PENG Li-min 2 (1.Zhejiang Huaheng Supervision Consultant Co.Ltd of Communication,Shaoxing,Zhejiang 312000,China,2.Central South University,Changsha,Hunan 410075,China) |
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| Abstract: | Research purposes:It is of significance to detect secondary lining's defect of tunnels as well as to repair and strengthen the secondary lining.Radar was applied to detect lining's defect in Jiaoxiling tunnels.Direct stiffness method was used to study the influence of holes on the lining mechanics. Research conclusions: Main defects of the secondary are holes lying behind the crown,and the next is seepage.The secondary lining mechanic is showed to be very complex and unfavourable due to holes.The weak parts... |
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| Keywords: | tunnel engineering ground penetrating radar nondestructive testing secondary lining direct stiffness method safety assessment |
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