敦煌莫高窟崖体风化特征及保护对策

 详细的现场调查发现，莫高窟岩体以物理风化为主。按照病害与地貌部位的组合关系，从加固工程实际出发，将风化病害划分为9种形式、3种程度，确定不同病害的空间展布特征。依据“综合性高、成熟度高、有效性强”的工程技术遴选原则，选择出PS渗透固化、裂隙注浆、锚索锚固、薄顶加固、局部清除等具体加固措施，论证各项措施的可靠性，从而建立莫高窟加固工程设计的框架结构。

WEATHERING CHARACTERIZATION AND CONSERVATION TREATMENT OF CLIFF AT MOGAO GROTTOES

Detailed investigations conducted on the rock cliff of Mogao Grottoes show that physical weathering is the major factor responsible for the deterioration of cliff rock. From the viewpoint of reinforcement engineering，weathering hazards in Mogao Grottoes are classified into 9 kinds with 3 different intensities in relation to micro- geomorgraphy. Various treatments are evaluated and suggested for engineering design；such as the PS consolidation of cliff surface，crack grouting，cable stabilization to unstable rock mass，topping of thin-covered caves and removing of unfavorable structures for stabilization constructed in the early time. The reliability of the treatments is proven and the frame structure for design of reinforcement engineering in Mogao Grottoes is established.