Seismic Response Analysis on the Secondary Lining with Voids Repaired with Polymer Grouting of Tunnels Based on Inversion Analysis of Parameters
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摘要: 隧道衬砌背后的脱空现象已经成为隧道病害的主要诱因,易引发隧道衬砌结构破坏、脱落、渗水等病害,严重威胁隧道的正常运营。衬砌背后的脱空大大削弱了隧道的抗震能力。通过优化改进系统识别灵敏度分析方法,反演计算了围岩的力学参数,并利用改进后的反演结果优化了隧道动力响应数值模型,在此基础上研究了经高聚物注浆修复衬砌背后脱空区后龙眠山隧道的修复效果和抗震能力。结果表明:隧道二次衬砌顶部脱空区域在注浆修复后,位移和应力明显减小,接近于正常情况;但在不同场地条件同一峰值的地震波作用下,二次衬砌顶部的应力、位移均存在明显的差异,说明该隧道模型的动力响应具有明显的地震波频谱敏感性。Abstract: The void phenomenon behind the tunnel lining has become the main cause of tunnel diseases, which easily triggers the damage of tunnel lining structure, shedding, water seepage and other diseases, and seriously threatened the normal operation of tunnels. The void behind the lining seriously reduced the aseismic capacity of tunnels. The mechanical parameters of surrounding rock were calculated in inversion by the optimizing analysis method of improved system identification sensitivity, and the numerical model for the dynamic response of tunnels was optimized by the improved inversion results to study the repair effect and aseismic capacity of the Longmianshan tunnel repaired the void behind the lining grouted by polymer. The results showed that the displacement and stress in the repaired zone at the top of the secondary lining of the tunnel were significantly reduced and close the normal; however, there were significantly different in the stress and displacement at the top of the secondary lining subjected to seismic waves of the same peak acceleration in different site conditions, indicating that the dynamic response of the tunnel model had significant sensitivity to the seismic wave spectrum.
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Key words:
- inversion analysis /
- repair for a tunnel void /
- polymer grouting /
- seismic response
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[1] 刘劼,董武,龚成明.衬砌缺陷防治技术在运营铁路隧道中的应用研究[J].现代隧道技术,2019,56(6):157-161,180. [2] 许献磊,马正,李俊鹏,等.地铁隧道管片背后脱空及渗水病害检测方法[J].铁道建筑,2019,59(7):51-56. [3] 谭文.隧道衬砌防脱空预警监控新技术研究与应用[J].现代隧道技术,2020,57(3):199-203. [4] 伍毅敏,邵帅,傅鹤林,等.隧道衬砌拱顶脱空分析及主动监测预防方法[J].中国安全科学学报,2019,29(增刊1):186-191. [5] YE F,QIN N,LIANG X,et al.Analyses of the defects in highway tunnels in China[J].Tunnelling and Underground Space Technology,2021,107.https://doi.org/10.1016/j.tust.2020.103658. [6] LIU S,SHI Y,SUN R,et al.Damage behavior and maintenance design of tunnel lining based on numerical evaluation[J].Engineering Failure Analysis,2020,109.https://doi.org/10.1016/j.engfailanal.2019.104209. [7] 赵阳川,李亚林,卫敏,等.隧道衬砌脱空及厚度不足的原因分析与防治措施初探[J].现代隧道技术,2019,56(2):40-43. [8] 彭万平,张春光.云桂铁路石林隧道二次衬砌背后脱空受力分析及预防措施[J].铁道建筑,2016(10):72-74. [9] 龚成明,罗永君,张军.隧道衬砌缺陷防治技术研究[J].现代隧道技术,2018,55(6):210-216,221. [10] 程升亮,钟明键,赵东游,等.二衬背后空洞对衬砌结构影响的数值模拟研究[J].公路,2019,64(3):331-336. [11] 王复明,范永丰,郭成超.非水反应类高聚物注浆渗漏水处治工程实践[J].水力发电学报,2018,37(10):1-11. [12] 石明生,于冬梅,王复明.高聚物注浆材料的弯曲性能[J].材料科学与工程学报,2010,28(4):514-517. [13] 郭成超,王复明,钟燕辉.水泥混凝土路面脱空高聚物注浆技术研究[J].公路,2008(10):232-236. [14] 汪在芹,魏涛,李珍,等.CW系环氧树脂化学灌浆材料的研究及应用[J].长江科学院院报,2011,28(10):167-170. [15] 王道路,王超杰,郝燕洁,等.非发泡型高聚物与混凝土基体锚固性能研究[J].隧道建设(中英文),2021,41(1):77-87. [16] 郭成超,王复明,徐建国.隧道高聚物快速维修技术研究[J].筑路机械与施工机械化,2008,25(12):60-62. [17] 秦鹏飞.地下工程注浆技术研究新进展[J].现代隧道技术,2020,57(2):55-60. [18] GUO C,WANG F.Research on polymer injection technology for quick tunnel repairment[C]//Road Pavement Material Characterization and Rehabilitation:Proceedings of the 2009 GeoHunan International Conference.2009:110-117. [19] 王治强.河北张承高速大华岭隧道公路水泥混凝土路面高聚物注浆技术的应用[J].公路交通科技(应用技术版),2016,12(1):107-109. [20] 边学成,程翀,王复明,等.高速铁路路基沉降高聚物注浆修复后动力性能及长期耐久性的试验研究[J].岩土工程学报,2014,36(3):562-568. [21] 应国刚.衬砌背后空洞对隧道结构体系安全性的影响机理研究[D].北京:北京交通大学,2016. [22] 廉海亮.山岭浅埋隧道衬砌背后空洞的危害与防治研究[D].绵阳:西南科技大学,2018. [23] 李晓斌.衬砌背后空洞对隧道结构安全性影响及其防治措施研究[D].成都:西南交通大学,2017. [24] 朱正国,耿亚帅,武杰,等.地震作用下隧道衬砌背后空洞影响机制研究[J].铁道工程学报,2015,32(9):79-84. [25] 聂子云,张春雷,李凤翔.衬砌背后空洞对隧道抗震性能影响分析[J].地震工程学报,2015,37(1):138-143. [26] ZHONG Y H,WANG F M,ZHANG B,et al.System identification method for back calculated pavement layer properties[J].Numerical and Analytic and Methods,2003(6):119-124. [27] 张蓓.路面结构层材料介电特性及其厚度反演分析的系统识别方法:路面雷达关键技术研究[D].重庆:重庆大学,2003. [28] 徐建国,王复明,蔡迎春.隧道收敛变形监测及围岩特性参数反演[J].中国公路学报,2008,21(3):81-85. [29] 刘强,张蓓,钟艳辉,等.基于系统识别方法的隧道围岩参数反演分析[J].公路,2011(4):197-201. [30] 姬亦工,王复明,郭忠印.基于落锤式弯沉仪(FWD)动态数据的路面模量反演方法[J].土木工程学报,2002,35(3):31-36. [31] 姬亦工,王复明,栾茂田.黏弹性层状地基上板的动力响应及其参数识别方法[J].土木工程学报,2002,19(1):60-64. [32] 胡勐乾,周群,纪忠华,等.我国部分核电厂核岛区岩体动、静模量研究[J].工业建筑,2015,45(9):37-39.
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