首页> 外文会议>Proceedings of International Symposium Conservation of Ancient Sites 2008 amp; ISRM-Sponsored Regional Symposium >Seismic Stability Analysis for Caves with Gable Ceiling in Mogao Grottoes under the Vertical Earthquake Load
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Seismic Stability Analysis for Caves with Gable Ceiling in Mogao Grottoes under the Vertical Earthquake Load

机译:竖向地震荷载作用下莫高窟山墙天花板洞穴的地震稳定性分析

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摘要

Gable ceiling was constructed in some of the caves in Mogao Grottoes.This design enriches the internal spatial structure of a grotto and is the integration of Chinese traditional and Buddhist grotto construction.The design is so unique and the rock mechanics hidden behind is so enormous that there are rays of wisdom of ancient Chinese on grotto engineering shining from the ceiling.There are still many questions on the design to be solved.The authors have chosen cave 254 of the Mogao Grottoes,which has a typical gable ceiling,for seismic stability analysis.3D computational model for the cave was constructed and vertical earthquake load was used in the analysis.Using input of various earthquake acceleration time intervals,rock stress has been analysed in four different simulation models.The result highlights critical positions for grottoes reinforcement,and provides scientific evidence for conservation and reinforcement engineering for protection of the grottoes from earthquake damage.
机译:山墙天花板是在莫高窟的某些山洞中建造的,这种设计丰富了石窟的内部空间结构,是中国传统和佛教石窟建筑的融合,设计如此独特,其背后隐藏的岩石力学是如此巨大,以至于天花板上闪耀着中国古代人对洞穴工程的智慧。设计上还有很多问题需要解决。作者选择了莫高窟第254号洞穴,该洞穴有一个典型的山墙天花板,用于地震稳定性分析。 .3D对该洞穴进行了计算,并利用竖向地震荷载进行了分析。利用各种地震加速度时间间隔的输入,在四种不同的模拟模型中对岩石应力进行了分析,结果突出了石窟加固的关键位置,并提供了保护和加固工程以保护石窟免受地震破坏的科学依据。

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