Parametric Study and Displacement Response of Steel Pipeline Subjected to Surface Explosion

被引：0
|
作者：
Wang Y. [1 ]
Liao C. [1 ]
Zhang Q. [1 ]
机构：
[1] Department of Civil Engineering, State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai
来源：
Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University | 2020年 / 54卷 / 02期
关键词：
Displacement response; Pipe jacking; Saturated soil; Surface explosion;
D O I：
10.16183/j.cnki.jsjtu.2020.02.011
中图分类号：
学科分类号：
摘要：
A coupled numerical model is established by adopting the u-p model. The dynamic response of pipe jacking in saturated soil under surface explosion is investigated in detail. A comprehensive parametric study is carried out to study effect of explosive charge, explosion offset, embedment depth and radius of the pipe jacking. The results show that the vertical displacement of pipe jacking increases with explosive charge. The stability capacity of the pipe jacking under surface explosion decreases as the pipe radius increases. Increasing the buried depth of pipe jacking can significantly enhance the anti-explosion ability of pipe jacking under surface explosion. In additioin, the vertical displacment of the pipe jacking decreases as the off-set distance increases. The pipe jacking rises slightly under surface explosion eventually. And the horizontal displacement increases firstly and then decreases as off-set distance increases. © 2020, Shanghai Jiao Tong University Press. All right reserved.
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页码：193 / 199
页数：6
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