SV波入射下衬砌尺寸对引水隧道动力响应的影响OA北大核心CSCDCSTPCD
Influence of structure size on water diversion tunnel's seismic response induced by SV wave
采用波函数的Fourier-Bessel级数展开方法,得到了SV波入射时,大型引水隧道平面地震响应的解析解,并对建立的场地模型进行数值计算.计算结果表明:SV波入射时,引水隧道衬砌的径向动应力随隧道内径的增大而增大,径向动应力的最大值与隧道内径呈线性关系,SV波入射引起的引水隧道衬砌的切向动应力随隧道内径的增大而增大.当入射角小于临界角时,切向动应力受隧道内径变化的影响很大.此外,引水隧道衬砌的径向动应力随衬砌厚度的增大而增大,切向动应力则随衬砌厚度的增大而减小.
The Fourier-Bessel series expansion method is used to obtain the analytical solution of large-scale water diversion tunnel's seismic response induced by plane SV wave. The numerical results of the model are obtained by using the analytical solution. The research results show that both the dynamic radial stress and dynamic tangential stress of water diversion tunnel lining increase as the tunnel radius increases, and the maximum of dynamic radial stress is pr…查看全部>>
马宏伟;陈文化
北京交通大学土木建筑工程学院,北京100044北京交通大学土木建筑工程学院,北京100044
建筑与水利
地震波波函数展开法引水隧道动力响应结构尺寸
earthquake waves Fourier-Besse series expansion method diversion tunnel seismic response structure size
《北京交通大学学报》 2012 (3)
区域性典型结构性砂动力弱稳定性和不确定性试验分析
25-31,7
国家自然科学基金资助项目(51178035)
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