|本期目录/Table of Contents|

[1]彭跃辉,陶 彪,刘鑫磊,等.浅埋隧道在部分集中脉冲荷载作用下的波动响应[J].建筑科学与工程学报,2019,36(03):110-116.
 PENG Yue-hui,TAO Biao,LIU Xin-lei,et al.Wave Response of Shallow Buried Tunnel Under Partially Concentrated Pulse Load[J].Journal of Architecture and Civil Engineering,2019,36(03):110-116.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
36卷
期数:
2019年03期
页码:
110-116
栏目:
出版日期:
2019-05-22

文章信息/Info

Title:
Wave Response of Shallow Buried Tunnel Under Partially Concentrated Pulse Load
文章编号:
1673-2049(2019)03-0110-07
作者:
彭跃辉1,陶 彪2,刘鑫磊2,耿大新2,王 宁2
(1. 南昌铁路勘测设计院有限责任公司,江西 南昌 330002; 2. 华东交通大学 土木建筑学院,江西 南昌 330013)
Author(s):
PENG Yue-hui1, TAO Biao2, LIU Xin-lei2, GENG Da-xin2, WANG Ning2
(1. Nanchang Railway Survey and Design Institute Co., Ltd., Nanchang 330002, Jiangxi, China; 2. School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, Jiangxi, China)
关键词:
浅埋隧道 局部集中荷载 Laplace变换 Graf坐标转换 波动响应
Keywords:
shallow buried tunnel local concentrated load Laplace transformation Graf coordinate transformation wave response
分类号:
TU312
DOI:
-
文献标志码:
A
摘要:
基于Hamilton理论-弹性波动理论,采用解析法研究了局部集中瞬态脉冲荷载下半空间隧道的动力响应。衬砌采用Hamilton壳体理论模拟,土体采用弹性介质动力学理论模拟,通过波函数展开法、Graf坐标转换法和Laplace变换法及其数值逆变换,求解了半空间中隧道瞬态集中荷载响应的半解析解。通过MATLAB数值计算,分析了隧道不同位置衬砌刚度、土体波速、衬砌环向角度的波动特性。结果表明:隧道环向各位置处位移与应力幅值随埋深增加而减小,环向应力和径向位移曲线波动趋势相似,在各角度上的响应幅值各不相同,由于地表存在,隧道顶部响应大于其他各位置; 衬砌外表面的位移与应力随土体波数增加而减小,同时隧道位置的改变对土体波数变化影响较大,以隧道顶部响应最为显著; 当衬砌刚度增大时,其环向各位置响应衰减幅度不同,其中隧道底部位置处的幅值衰减最大。
Abstract:
Based on Hamilton's theory and elastic wave theory, the dynamic response of a half-space tunnel subjected to locally concentrated transient impulse loads was studied by analytic method. Lining was simulated by Hamilton thin-shell theory and soil was simulated by elastic medium dynamics theory. Semi-analytical solution of transient concentrated load problem of circular lining in half space was solved by wave function expansion method, Graf coordinate transformation method and Laplace transformation method and their numerical inverse transformation. Through MATLAB calculation, the dynamic response characteristics of lining stiffness, soil wave velocity and lining circumferential angle at different locations of tunnel were analyzed. The results show that the amplitude of tunnel response decreases with the increase of burial depth. The response amplitude varies from angle to angle, and the response of top of tunnel is larger than that of other locations. The displacement and stress of outer surface of lining decreases with the increase of wave number of soil. When the lining stiffness increases, the attenuation range of the response is different in the circumferential position, and the attenuation of the amplitude at the bottom of the tunnel is the largest.

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备注/Memo

备注/Memo:
收稿日期:2019-03-10
基金项目:江西省交通运输厅科技项目(2016D0039,2017D0035); 江西省教育厅科技项目(GJJ170363)
作者简介:彭跃辉(1965-),男,江西南昌人,高级工程师,E-mail:185189208@qq.com。
通信作者:陶 彪(1993-),男,江西南昌人,工学硕士研究生,E-mail:593407847@qq.com。
更新日期/Last Update: 2019-05-23