冲击荷载作用下冻土区埋地管道动力响应试验研究  

Dynamic response test of buried pipeline in frozen soil area under impact load

作　　者：滕振超[1,2] 赵誉翔 滕云超 刘晓燕 计静[1,2] TENG Zhenchao;ZHAO Yuxiang;TENG Yunchao;LIU Xiaoyan;JI Jing(Civil Engineering and Architecture College,Northeast Petroleum University,Daqing 163318,China;Heilongjiang Provincial Key Laboratory of Disaster Prevention and Mitigation and Protection Engineering,Daqing 163318,China)

机构地区：[1]东北石油大学土木建筑工程学院,黑龙江大庆163318 [2]黑龙江省高校防灾减灾与防护工程重点实验室,黑龙江大庆163318

出　　处：《地震工程与工程振动》2021年第6期168-176,共9页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金项目(51176024);中国地震局工程力学研究所基本科研业务费专项资助项目(2020D07)。

摘　　要：为研究冲击荷载作用下冻土区埋地管道动力响应,设计了土箱-管道缩尺试验模型,开展了冲击荷载作用下冻土区埋地管道动力响应的缩尺试验,研究了冻土区埋地管道在不同条件下受到冲击荷载作用时,管道的应变分布情况。结果表明:冻土区埋地管道在冲击荷载作用下,采用相同形状的落体时,管道应变的峰值随着初始高度的增高而增大;初始冲击高度一定时,正方体状落体较球体状落体使管道产生的应变更大,且管道上、下表面的应变呈反对称。实验方法和结论对冻土区埋地管道抗冲击的研究有参考意义。As the study regions under the shock load,the dynamic response of buried pipeline model,the soil box-pipe scale experiment was designed in the permafrost regions under the shock load of the dynamic response of buried pipeline scale test,studied the permafrost regions of buried pipelines under different conditions by the shock load,the strain distribution of the pipeline.The results show that the peak value of the pipeline strain increases with the increase of the initial height when the pipeline with the same shape falls under the impact load.When the initial impact height is fixed,the cuboid falling body is larger than the sphere falling body,and the strain on the upper and lower surfaces of the pipeline is anti-symmetric.The experimental methods and conclusions are of reference value to the study of impact resistance of buried pipelines in frozen soil area.

关 键 词：埋地管道 冻土区 冲击荷载 试验研究 

分 类 号：TU968[建筑科学]