布达拉宫西印经院地基应力特征与结构变形分析

世界各国在文物建筑保护领域形成共识的技术标准非常有限，而岩土工程研究与文物建筑保护研究的融合是目前斜坡岩体古建筑保护研究的一个发展方向。在世界文化遗产布达拉宫西印经院保护研究的过程中，采用岩土工程和结构工程技术手段，对红山岩体及结构主体进行调研和勘察，揭示了影响该文物建筑结构稳定的三个因素，即斜坡岩体地基非均质性、建筑物刚度具有较大差异性和结构荷载分布的不均匀性。进一步分析了地基中的应力分布特征，模拟研究了三个因素综合影响下的地基沉降及结构变形力学机制，为斜坡岩体古建筑的保护提供依据。

Groundsill stress characteristics and structural deformation analysis of the west scriptures printing hall in the potala palace, tibet

The unified technical standards on the conservation engineering of historic buildings and sites are very limited in the world; the investigation combined with geomechanics and conservation methods research is becoming more and more important in the field of ancient buildings conservation, especially to the protection engineering of landmarks located on the slopes. This paper describes the damage analysis process and conservation approaches selection to the West Scriptures Printing Hall of Potala Palace in Tibet. The structural stability and possible damage under gravity and earthquake load is analyzed. Rock engineering techniques and structural analysis method are applied to explore the bedrock mass properties and structural characteristics. The main three factors which influences the stability of the West Scriptures Printing Hall are achieved, stuch as heterogeneous property of bedrock mass, stiffness difference of the structure and heterogeneous distribution of structural load. Futhermore, the ground stress characteristics in the bedrock are analyzed and the mechanisms of deformation and foundation subsidence under comprehensive effects of the main three factors are explored by numerical simulation , which can provide a lot of useful experiences on the conservation engineering of landmarks located on the slopes.