地下圆形衬砌洞室对SH波的动应力集中(Ⅰ):3-D级数解  

Dynamic stress concentration of an underground cylindrical lined cavity subjected to incident plane SH waves(Ⅰ) :3-D series solution

作　　者：纪晓东[1] 杜修力[2] 

机构地区：[1]大连大学建筑工程学院,辽宁大连116622 [2]北京工业大学建筑工程学院,北京100124

出　　处：《世界地震工程》2013年第3期10-13,共4页World Earthquake Engineering

基　　金：国家973计划项目(2007CB714203);国家自然科学基金重点项目(90715035);辽宁省教育厅高等学校科研项目计划(No:2008058)

摘　　要：利用波函数展开法,研究了地下圆形衬砌洞室在入射平面SH波作用下的动应力集中问题,并给出了三维条件下的级数解。当入射波所在平面与洞室截面所在平面的夹角为零时,解答将退化为二维条件下的结果。三维级数解为进一步定量分析衬砌洞室对入射平面SH波的动应力集中提供了理论基础。By using series expansion method, dynamic stress concentration of an underground cylindrical lined cav- ity subjected to incident plane SH waves was studied and the three-dimensional series solution is presented. When the angle included between incident plane and cavity＇ s section plane closes to zero, the result is reduced to two-di- mensional series solution. The three-dimensional series solution provides a theoretical foundation for further quanti- tative analyisis of dynamic stress concentration of the lined cavity subjected to incident plane SH waves.

关 键 词：衬砌洞室 SH波 动应力集中 级数解 

分 类 号：O347.4[理学—固体力学] P315.3[理学—力学]