摘要
随着高铁的建设,由高铁列车运行引发的环境振动问题越来越受到重视。采用理论分析与数值模拟相结合的方法,研究了京张铁路张家口段的东灰场坝在高铁运行振动下的影响,对大坝安全进行评价分析,结论表明在适当的距离下,高铁运行振动对坝体动位移、大坝加速度、动孔压和液化区域、永久变形等影响很小,不会对大坝的安全性造成大的影响。
With the large-scale construction of high-speed rail, the attention has been paid to the environmental vibration problem caused by the operation of high-speed railway trains. The Zhangjiakou ash dam is close to Beijing-Zhangjiakou high-speed railway, the effect on dam safety of the long-term intermittent vibration caused by high-speed trains is evaluated by the combination of theoretical analysis and numerical simulation methods. The results show that the high-speed railway operation has little effect on the dynamic displacement of dam, dam acceleration, dynamic pore pressure and liquefaction area, and permanent deformation when the distance between dam and rail is proper, and will not has a great impact on the safety of dam.
作者
严俊
魏迎奇
蔡红
吴帅峰
乔芸芸
肖建章
YAN Jun;WEI Yingqi;CAI Hong;WU Shuaifeng;QIAO Yunyun;XIAO Jianzhang(State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources andHydropower Research, Beijing 100048, China;Beijing Water Consulting Corporation, Beijing 100048, China)
出处
《水力发电》
北大核心
2019年第5期67-72,107,共7页
Water Power
基金
国家重点研发计划项目(2017YFC0804600)
中国水科院基本科研业务费项目(GE0145B102018)
关键词
高铁
运行振动
地震
大坝
安全性
high-speed rail
running vibration
earthquake
dam
safety
