ISSN 1003-8035 CN 11-2852/P
    王泽军, 陈铁林, 崔光耀, 马军辉, 张玉. 强震区隧道洞口软硬岩交接段围岩注浆抗震措施效果分析[J]. 中国地质灾害与防治学报, 2018, 29(4): 96-102.
    引用本文: 王泽军, 陈铁林, 崔光耀, 马军辉, 张玉. 强震区隧道洞口软硬岩交接段围岩注浆抗震措施效果分析[J]. 中国地质灾害与防治学报, 2018, 29(4): 96-102.
    WANGZejun, CHENTielin, CUIGuangyao, MAJunhui, ZHANGYu. Research on aseismic effect of grouting measures for tunnel portal structure at interface between soft and hard rock in high-intensity earthquake zone[J]. The Chinese Journal of Geological Hazard and Control, 2018, 29(4): 96-102.
    Citation: WANGZejun, CHENTielin, CUIGuangyao, MAJunhui, ZHANGYu. Research on aseismic effect of grouting measures for tunnel portal structure at interface between soft and hard rock in high-intensity earthquake zone[J]. The Chinese Journal of Geological Hazard and Control, 2018, 29(4): 96-102.

    强震区隧道洞口软硬岩交接段围岩注浆抗震措施效果分析

    Research on aseismic effect of grouting measures for tunnel portal structure at interface between soft and hard rock in high-intensity earthquake zone

    • 摘要: 为提高强震区隧道洞口软硬围岩交接段的地震安全性,本文依托老鹰窝隧道工程洞口段,利用有限差分计算软件FLAC3D进行三维动力响应分析,对全环接触注浆、全环间隔注浆两种围岩注浆抗震措施作用效果进行了对比研究。研究表明:(1)两种注浆方式均能有效减小隧道二衬结构的动力响应内力,改善隧道结构的受力特性,从而提高隧道整体的抗震性能;(2)地震荷载作用下,软岩隧道动力响应强于硬岩,且离软硬围岩交界面越近,响应越大;(3)从减小衬砌结构响应内力的角度来说,全环间隔注浆抗震性能优于全环接触注浆。研究成果可为强震区隧道洞口段抗震设防设计提供参考。

       

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