Characteristics of ground motion at permafrost sites along the Qinghai-Tibet railway

被引：22
|
作者：
Wang, Lanmin [1 ,2 ]
Wu, Zhijian [2 ,3 ]
Sun, Junjie [1 ,2 ]
Liu, Xinfu [3 ]
Wang, Zhenming [4 ]
机构：
[1] CEA, Open Lab Loess Earthquake Engn, Lanzhou Inst Seismol, Lanzhou 730000, Peoples R China
[2] CEA, Lanzhou Creat Base Inst Earthquake Predict, Lanzhou 730000, Peoples R China
[3] CAS, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China
[4] Kentucky Geol Survey, Lexington, KY 40506 USA
来源：
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING | 2009年 / 29卷 / 06期
关键词：
Qinghai-Tibet railway; Permafrost; Ground motion; Velocity of wave; Ground temperature;
D O I：
10.1016/j.soildyn.2008.11.009
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
Based on 14 typical drilling holes distributed in the permafrost areas along the Qinghai-Tibet railway, the distribution of wave velocities of soils in the permafrost regions were determined. Using results of dynamic triaxial tests, the results of dynamic triaxiality test and time histories of ground motion acceleration in this area, characteristics of ground motion response were analyzed for these permafrost sites for time histories of ground accelerations with three exceedance probabilities (63%, 10% and 2%). The influence of ground temperature on the seismic displacement, velocity, acceleration and response spectrum on the surface of permafrost were also studied. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：974 / 981
页数：8
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