Seismic response of small-radius planar curved tunnels
-
摘要: 基于某实际工程,建立了小半径平面曲线隧道三维分析模型,探讨其在单向水平激振下的地震响应规律。其中考虑了隧道弯曲角度、地震动幅值和类型等因素的影响。通过分析得出了小半径平面曲线隧道的地震响应规律：①响应幅值方面,横向抗震段的响应最大,曲线段其次,纵向抗震段最小;②响应差异方面,曲线部分对隧道加速度影响较小,主要影响隧道的变形;③震动能量方面,随着隧道从横向抗震逐渐过渡到纵向抗震,其震动能量逐渐降低。Abstract: A three-dimensional model for small-radius planar curved tunnels with different bending angles is established to investigate their seismic response. The influences of bending angle, amplitude and type of ground motion are considered. The seismic response laws of the small-radius planar curved tunnels are obtained: (1) For the response amplitude, the transverse seismic section is the largest, the curve section is the second, and the longitudinal seismic section is the least. (2) For the response difference, the curve part has little effect on tunnel acceleration, which mainly affects the deformation of tunnel; (3) For the vibration energy, the energy decreases gradually with the transition from transverse seismic section to longitudinal one.
-
Keywords:
- small radius /
- curved tunnel /
- bending angle /
- seismic response /
- numerical calculation
-
[1] 刘晶波, 李彬. 地铁地下结构抗震分析及设计中的几个关键问题[J]. 土木工程学报, 2006, 39(6): 106-110.
(LIU Jing-bo, LI Bin.Issues on the seismic analysis and design of subway structures[J]. China Civil Engineering Journal, 2006, 39(6): 106-110. (in Chinese))[2] 陶连金, 王文沛, 张波, 等. 竖向强震作用下密贴地铁地下交叉结构动力响应分析[J]. 岩土工程学报, 2012, 34(3): 433-437.
(TAO Lian-jin, WANG Wen-pei, ZHANG Bo.Dynamic response of closely-attached intersecting underground subway structures under vertical strong ground motion[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(3): 433-437. (in Chinese))[3] HUO H, BOBET A, FERNANDEZ G.et al.Load transfer mechanisms between underground structure and surrounding ground: Evaluation of the failure of the Daikai station[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2005, 131(12): 1522-1533. [4] 周彦良. 曲线隧道的地震响应特性及抗震减震方法研究[D].西安科技大学, 2013.
(ZHOU Yan-liang.Study on seismic response properties and anti-seismic and seismic-relieving measures of curved tunnel[D]. Xi'an: Xi'an University of Science and Technology, 2013. (in Chinese))[5] 周彦良, 戴俊, 曹东. 曲线隧道的震害机理及抗震分析方法探讨[J]. 公路交通技术, 2013(2): 107-110.
(ZHOU Yan-liang, DAI Jun, CAO Dong.Discussion on seismic damage mechanism and seismic analysis method of curvedd tunnel[J]. Technology of Highway and Transport, 2013(2): 107-110. (in Chinese))[6] ZHUANG Hai-yang, HU Zhong-hua, WANG Xue-jian, et al.Seismic responses of a large underground structure in liquefied soils by FEM numerical modeling[J]. Bulletin of Earthquake Engineering, 2015, 13(12): 3645-3668. [7] 安军海, 陶连金, 李积栋, 等. 地铁双层交叉隧道非线性地震响应分析[J]. 中国铁道科学, 2015, 36(3): 66-7.
(AN Jun-hai, TAO Lian-jin, LI Ji-dong, et al.Nonlinear seismic response analysis of subway double-decked tunnel[J]. China Railway Science, 2015, 36(3): 66-72. (in Chinese)) -
期刊类型引用(5)
1. 陈奕臻，崔杰，陈泓宇，黄襄云，陈克坚，戴胜勇. 考虑不同曲率下盾构隧道纵向地震响应分析. 广州建筑. 2024(07): 1-5 . 
百度学术
2. 谷音，何建，阙云，柳林齐，蓝亦辉. 曲率半径对小净距超大断面隧道地震响应的影响. 福州大学学报(自然科学版). 2023(03): 402-408 . 百度学术
3. 林颖，王国波，施龙飞，王建宁. 近距离空间曲线隧道群地震响应. 隧道与地下工程灾害防治. 2023(03): 86-92 . 百度学术
4. 李琦，万雨虹，王雪，李敏，王发豪，杨畅. 多因素耦合影响的小半径曲线隧道风机布置优化研究. 安全与环境学报. 2023(12): 4308-4317 . 百度学术
5. 禹海涛，李心熙，李攀. 行波效应下曲线隧道动力响应解析解. 岩土工程学报. 2021(01): 69-76 . 本站查看
其他类型引用(5)
计量
- 文章访问数: 215
- HTML全文浏览量: 9
- PDF下载量: 97
- 被引次数: 10
下载:
