古王陵变形破坏机理及稳定性研究——以国家重点文物高句丽太王陵为例

本文在现场工程地质条件及变形破坏特征勘察的基础上,对高句丽太王陵的稳定性进行了研究,并用三维有限差分程序FLAC3D对陵体在自重和渗流场藕合作用下的应力和变形规律进行了研究。研究表明:(1)太王陵出现的条石内倾、条石拉开等变形是由其本身的结构特点及其在自重作用下形成的;(2)持力层承载力不足,地基失稳是引起该国家重点文物破坏的主要原因;(3)陵坡滑移是由于本身安全储备较低,在地基失稳和地震等的共同作用下引发的。

Study on the deformation failure mechanism and stability of ancient kings tomb:A case of national key cultural relic Gaogouli's Tai kings tomb

Based on the engineering geological exploration and the deformation failure characteristics investigation of Tai kings tomb,the stability of Tai kings tomb was studied,and the rules of stress and deformation of the national key cultural relic under the coupling effect of gravity field and the ground water seepage field also were researched using FLAC~(3D) in this paper.From above research,the deformation failure mechanism and stability of Tai kings tomb were revealed.Preceding research indicates:(1) deformation occurring in Tai kings tomb,such as intilted strip stones and strip stones joint broaden etc,dues to the structure characteristics of Tai kings tomb and the action of gravity;(2) the foundation instability owing to the insufficiency of bearing capacity of bearing stratum is the primary reason of Tai kings tomb destroy;(3) slope sliding occurring in the Tai kings tomb was arose by the combined action of emergency capacity lower of tomb slope,foundation instability and earthquake.The research conclusion in this paper is very helpful to the further protection of the national key cultural relic and the research method can provide reference for similar engineering.