Study on dynamic response of saturated soft clay under the subway vibration loading I: instantaneous dynamic response
Study on dynamic response of saturated soft clay under the subway vibration loading I: instantaneous dynamic response
复制标题
地铁振动荷载作用下饱和软土动力响应研究Ⅰ：瞬时动力响应
DOI：
10.1007/s12665-011-1000-5
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发表时间：
2011-03
期刊：
影响因子：
--
通讯作者：
唐益群
中科院分区：
文献类型：
--
作者：
唐益群
本文给出了饱和软土在地铁振动荷载作用下的瞬时动力响应结果。在假定土为粘弹性介质的基础上，推导了三维各向异性强迫振动下的波动方程，并利用matlab软件进行了拉普拉斯变换和傅立叶变换及其反变换，得到了土体的时-空半解析解。以上海地铁2号线为例，采用埋置式土压力计和孔压计对隧道周围进行动态监测，利用实验室全球数字系统测试仪，采用本文提出的方法计算隧道周围土体动应力水平响应幅值，确定相关计算参数。然后，将计算结果与连续现场监测数据进行对比分析，发现两种情况的衰减趋势在水平方向和垂直方向上都吻合较好，表明本文方法是合理的。
In this paper, the results of the instantaneous dynamic response of saturated soft clay under the subway vibration loading are presented. Based on the assumption of soil as viscoelastic medium, wave equation under forced vibration of three-dimensional anisotropy is derived, and time–space domain semi-analytical solution is given through Laplace and Fourier transform and their inverse transform using MATALB. Taking Shanghai metro line No. 2 for example, the dynamic monitoring is conducted with embedded earth pressure gauges and pore piezometers around the tunnel, and the horizontal response amplitude of dynamic stress of soil around the tunnel is calculated by the method presented in this paper with the laboratory Global Digital System test apparatus to determine the related calculation parameters. Then, a comparative analysis is made between calculation result and continuous field monitored data, and it is found that the attenuation trend of the two cases agree well with each other both in the horizontal and vertical direction, which indicates that the method presented in this study is reasonable.
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影响因子：
7.4
作者：
Tang, Yi-Qun;Cui, Zhen-Dong;Zhao, Shu-Kai
通讯作者：
Zhao, Shu-Kai
影响因子：
6.6
作者：
G. Eason
通讯作者：
G. Eason
影响因子：
1.5
作者：
Z. Pu
通讯作者：
Z. Pu
影响因子：
4.7
作者：
T. Fujikake
通讯作者：
T. Fujikake
DOI：
--
发表时间：
1977
期刊：
--
影响因子：
--
作者：
W. Rücker
通讯作者：
W. Rücker