[1]何子阳,庄永香,郭艳军,等.强震区浅埋偏压隧道洞口段减震层减震效果分析[J].高速铁路技术,2024,15(04):56-62，81.[doi:10.12098/j.issn.1674-8247.2024.04.011]
　HE Ziyang,ZHUANG Yongxiang,GUO Yanjun,et al.Analysis on the Seismic Response Reduction of Shock Absorption Layer in the Shallow and Unsymmetrical Pressure Section of Tunnel Portal in Strong Earthquake Area[J].HIGH SPEED RAILWAY TECHNOLOGY,2024,15(04):56-62，81.[doi:10.12098/j.issn.1674-8247.2024.04.011]
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强震区浅埋偏压隧道洞口段减震层减震效果分析()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
15卷
期数:
2024年04期
页码:
56-62，81
栏目:
研究创新
出版日期:
2024-08-30

文章信息/Info

Title:
Analysis on the Seismic Response Reduction of Shock Absorption Layer in the Shallow and Unsymmetrical Pressure Section of Tunnel Portal in Strong Earthquake Area
文章编号:
1674-8247（2024）04-0056-07
作者:
何子阳1; 庄永香2; 郭艳军3; 崔光耀1; 许崇庆1
1.北方工业大学，北京 100144;2.莒南县园林环卫保障服务中心，山东?临沂 276600;3.四川电力设计咨询有限责任公司，成都 610041
Author(s):
HE Ziyang1; ZHUANG Yongxiang2; GUO Yanjun3; CUI Guangyao1; XU Chongqing1
1.North China University of Technology ，Beijing? 100144 ，China;2.Junan County Garden Sanitation Support Service Center ，Linyi 276600 ，China;3.PowerChina Sichuan Electric Power Engineering Co. ，Ltd. ，Chengdu? 610041 ，China
关键词:
隧道工程; 强震区; 洞口段; 浅埋; 偏压; 减震层
Keywords:
tunnel engineering; strong earthquake area; portal section; shallow-buried; unsymmetrical pressure; shock absorption layer
分类号:
U45
DOI:
10.12098/j.issn.1674-8247.2024.04.011
文献标志码:
A
摘要:
依托某铁路隧道洞口段，利用FLAC3D软件研究隧道施设不同厚度减震层的减震效果。结果表明：（1）与不设减震层相比，施设5cm减震层后，二衬结构最大、最小主应力分别减小了26.05％、21.57％，竖向、纵向位移分别减小了74.68％、36.13％，竖向位移差减小了0.32mm，最小安全系数平均提高了50.46％；（2）施设10cm减震层后，二衬结构最大主应力增大了134.45％，最小主应力减小了26.70％，竖向、纵向位移分别减小了70.80％、26.89％，竖向位移差增大了1.85mm，最小安全系数平均提高了11.10％；（3）施设15cm减震层后，二衬结构最大、最小主应力分别减小了45.38％、25.16％，竖向、纵向位移分别减小了70.89％、13.45％，竖向位移差增大了1.89mm，最小安全系数平均提高了12.56％；（4）衬砌与围岩之间施设5cm减震效果优于施设10cm、15cm减震层的减震效果。研究成果可为隧道洞口浅埋偏压段减震技术的发展提供参考。
Abstract:
Based on a railway tunnel portal section，this study utilizes FLAC3D to analyze the damping effect of different thicknesses of damping layers applied between the liner and the surrounding rock. The results show that：（1）Compared with no seismic damping layer，after applying a 5 cm damping layer，the maximum and minimum principal stresses of the secondary lining structure are reduced by 26. 05％ and 21. 57％，the vertical and longitudinal displacements are reduced by 74. 68％ and 36. 13％，the vertical displacement difference is reduced by 0. 32 mm，and the minimum safety factor is increased by 50. 46％ on average. （2）After applying a 10 cm damping layer，the maximum principal stress of the secondary lining structure increases by 134. 45％，the minimum principal stress decreases by 26. 70％，the vertical and longitudinal displacements decrease by 70. 80％ and 26. 89％，the vertical displacement difference increases by 1. 85 mm，and the minimum safety factor increases by 11. 10％ on average. （3）After applying 15 cm damping layer，the maximum and minimum principal stresses of the secondary lining structure decrease by 45. 38％ and 25. 16％respectively，vertical and longitudinal displacements were reduced by 70. 89％ and 13. 45％ respectively，vertical displacement difference increased by 1. 89 mm，and minimum safety factor increases by 12. 56％ on average. （4）The seismic damping effect of applying 5 cm between the liner and the surrounding rock is better than that of 10 cm and 15 cm damping layers. The results can be used as a reference for the development of shock absorption technology in shallow tunnel portal.

参考文献/References:

［1］ 宋战平，裴佳锋，潘红伟，等. 浅埋偏压隧道洞口段超前大管棚支护效果分析［J］. 现代隧道技术，2022，59（6）：86-96. SONG Zhanping，PEI Jiafeng，PAN Hongwei，et al. Analysis on the Support Effect of Advance Large Pipe Umbrella at Portal Section of Shallow Tunnel under Unsymmetrical Load［J］. Modern Tunnelling Technology，2022，59（6）：86-96.
［2］ 贾元霞. 高速铁路浅埋偏压隧道安全进洞方案研究［J］. 地震工程学报，2022，44（1）：22-28. JIA Yuanxia. A Safe Entrance Scheme of Shallow Buried Bias Tunnels on High-speed Railways［J］. China Earthquake Engineering Journal，2022，44（1）：22-28.
［3］ 皇民，赵玉如，苑俊杰，等. 浅埋双洞错距山岭隧道洞口段地震响应试验研究［J］. 公路交通科技，2020，37（3）：96-104，113. HUANG Min，ZHAO Yuru，YUAN Junjie，et al. Experimental Study on Seismic Response of Portal Section of Shallow Buried Double Staggered Mountain Tunnels［J］. Journal of Highway and Transportation Research and Development，2020，37（3）：96-104， 113.
［4］ 任洋，李天斌，赖林. 强震区隧道洞口段边坡动力响应特征离心振动台试验［J］. 岩土力学，2020，41（5）：1605-1612，1624. REN Yang，LI Tianbin，LAI Lin. Centrifugal Shaking Table Test on Dynamic Response Characteristics of Tunnel Entrance Slope in Strong Earthquake Area［J］. Rock and Soil Mechanics，2020，41（5）：1605-1612，1624.
［5］ 邢渝遥，谢义正. 不同净距下浅埋分岔隧道力学行为研究［J］.高速铁路技术，2022，13（4）：87-92. XING Yuyao，XIE Yizheng. Study on Mechanical Behavior of Shallow-buried Bifurcation Tunnels with Different Clear Distances ［J］. High Speed Railway Technology，2022，13（4）：87-92.
［6］ 梁庆国，陈克霖，熊玉莲，等. 地震动作用下隧道洞口段破坏特征试验研究［J］. 防灾减灾工程学报，2023，43（1）：122-131. LIANG Qingguo，CHEN Kelin，XIONG Yulian，et al. Experimental Study on Failure Characteristics of Tunnel Portal under Ground Motion ［J］. Journal of Disaster Prevention and Mitigation Engineering， 2023，43（1）：122-131.
［7］ 蒋梦新，邱枫博，刘久明，等. 强震区隧道洞口段刚柔并济抗震技术研究［J］. 高速铁路技术，2021，12（4）：16-20. JIANG Mengxin，QIU Fengbo，LIU Jiuming，et al. Study on Rigid and Flexible Anti-seismic Technology for Tunnel Portal Sections in Meizoseismal Areas［J］. High Speed Railway Technology，2021，12（4）：16-20.
［8］ 王泽军，陈铁林，崔光耀，等. 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. WANG Zejun，CHEN Tielin，CUI Guangyao，et al. 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.
［9］ 崔光耀，纪磊，荆鸿飞. 高烈度艰险山区跨断层隧道减震层减震技术研究［J］. 地震工程学报，2019，41（2）：286-291. CUI Guangyao，JI Lei，JING Hongfei. Damping Shake Technology of the Shock Absorption Layer of Fault-crossing Tunnels in a Dangerous Mountainous Area with High-intensity Earthquakes［J］. China Earthquake Engineering Journal，2019，41（2）：286-291.
［10］赵英伟. 高烈度地震区倾斜隧道洞口段抗减震技术研究［J］. 高速铁路技术，2024，15（2）：32-38. ZHAO Yingwei. Study on Anti-seismic and Vibration Reduction Techniques for Inclined Tunnel Portal Sections in High Seismic Intensity Zones［J］. High Speed Railway Technology，2024，15（2）：32-38.
［11］王明年，崔光耀. 高烈度地震区隧道设置减震层的减震原理研究［J］. 土木工程学报，2011，44（8）：126-131. WANG Mingnian，CUI Guangyao. Study of the Mechanism of Shock Absorption Layer in the Supporting System of Tunnels in Highly Seismic Areas［J］. China Civil Engineering Journal，2011，44（8）：126-131.
［12］范凯祥，申玉生，高波，等. 穿越软硬围岩隧道设置减震层振动台试验研究［J］. 土木工程学报，2019，52（9）：109-120，128. FAN Kaixiang，SHEN Yusheng，GAO Bo，et al. Shaking Table Test on Damping Layer Applied in Tunnel Crossing Soft and Hard Surrounding Rock［J］. China Civil Engineering Journal，2019， 52（9）：109-120，128.
［13］闻毓民，信春雷，申玉生，等. 隧道衬砌结构减震层效能评定方法的振动台试验研究［J］. 振动与冲击，2022，41（5）：197-207. WEN Yumin，XIN Chunlei，SHEN Yusheng，et al. Shaking Table Tests for Effectiveness Evaluation Method of Damping Layer of Tunnel Lining Structure［J］. Journal of Vibration and Shock，2022，41（5）：197-207.
［14］关振长，朱凌枫，乔梁，等. 偏压条件下特大断面隧道地震动态响应的数值模拟研究［J］. 应用基础与工程科学学报，2021，29（4）：927-938.
［15］王赶，杜建明，房倩，等. 水平地震力作用下浅埋偏压小净距隧道围岩压力计算方法研究［J］. 铁道标准设计，2021，65（9）：133-139. WANG Gan，DU Jianming，FANG Qian，et al. Calculation Method of Surrounding Rock Pressure of Shallow Tunnels with Small Spacing under Horizontal Seismic and Unsymmetrical Loads［J］. Railway Standard Design，2021，65（9）：133-139.
［16］赵富发，江学良，杨慧，等. 橡胶减震层对浅埋偏压隧道地震加速度响应影响的试验研究［J］. 应用力学学报，2021，38（4）：1622-1628. ZHAO Fufa，JIANG Xueliang，YANG Hui，et al. Experimental Study on the Influence of Rubber Shock Absorbing Layer on Seismic Acceleration Response of Shallow Buried Bias Tunnel［J］. Chinese Journal of Applied Mechanics，2021，38（4）：1622-1628.
［17］TB 10003 - 2016铁路隧道设计规范［S］. TB 10003 - 2016 Code for Design of Railway Tunnel ［S］.

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备注/Memo

备注/Memo:
收稿日期：2023-05-19
作者简介：何子阳（1999-），男，研究生。
基金项目：北京市大学生科学研究与创业行动计划项目（23XN262-187）
更新日期/Last Update: 2024-08-30