西南交通大学学报2012，Vol.47Issue(4)：573-579,7.DOI:10.3969/j.issn.0258-2724.2012.04.006
云冈石窟第19窟西耳窟地震动力响应
Seismic Dynamic Responses of No.19 Grotto's West Side Cave of Yungang Grottoes
摘要
Abstract
A three-dimensional entity model for the 19th grotto's west side cave of Yungang Grottoes was built in order to explore the seismic dynamic responses of grottoes, A finite difference software, FLAC3D, was used to numerically simulate the displacement, acceleration amplification factor, stress distribution and acceleration Fourier spectrum of its chamber and surrounding rock. The simulation results show that its external cliff has a trend of outward collapse, and the main failure mode of rock mass is shear failure. Seismic waves are reflected and superimposed on each other in the region near the chamber, and large energy is absorbed by rock mass, so earthquake acceleration in the region should be augmented in antiseismic strengthening design.关键词
石窟/地震动力响应/稳定性/数值模拟Key words
grotto/ seismic dynamic response/ stability/ numerical simulation分类
天文与地球科学引用本文复制引用
孙博,彭宁波,王逢睿..云冈石窟第19窟西耳窟地震动力响应[J].西南交通大学学报,2012,47(4):573-579,7.基金项目
"十一五"国家科技支撑计划资助项目(2009BAK53B04) （2009BAK53B04）
