锦屏一级高拱坝地质力学模型材料试验研究  

Experimental study on geo-mechanical model material of high arch dam of JinpingⅠ Hydropower Station

作　　者：杨田[1,2] 张林[1,2] 陈媛[1,2] 夏婵婷 李美蓉[1,2] 

机构地区：[1]四川大学水力学与山区河流开发保护国家重点实验室,四川成都610065 [2]四川大学水利水电学院,四川成都610065

出　　处：《人民长江》2014年第3期79-82,共4页Yangtze River

基　　金：国家自然科学基金资助项目(51109152);国家重点基础研究发展计划"973"项目(2010CB226802);博士学科点专项科研基金(20100181110077)

摘　　要：地质力学模型试验是研究高拱坝整体稳定的重要方法之一,而模型材料的研制是确保模型试验成果可靠、准确的基础保证。结合锦屏一级高拱坝整体稳定三维地质力学模型,依据相似原理开展了模型材料的研究。以重晶石粉、机油、石蜡及适量高分子材料为主要原料配制了满足相似关系的岩体及结构面模型材料,并通过试验获得了材料的容重、变形模量、抗剪强度等力学参数。所配制的材料试验成果满足地质力学模型试验的精度要求,为后期模型试验的开展奠定了基础。Geo - mechanical model test is one of the important ways to study the integral stability of a high arch dam, and the development of test materials is a guarantee for reliability and accuracy of the model test conclusions. Combining with the 3D geo - mechanical model test for Jinping I Hydropower Station, we developed a new model material based on similarity principle. In the test, the barite powder, oil, paraffin and some polymer materials were mixed in a certain proportion to prepare the material that was used to simulate rock and structural plane. It is shown that the unit weight, deformation modulus as well as shearing co- efficient of the developed material meet the demands of similarity relation and test accuracy, providing a solid foundation for the subsequent geo - mechanical model test.

关 键 词：模型材料 相似原理 变形模量 抗剪断强度 地质力学模型 

分 类 号：P642[天文地球—工程地质学]