高坝稳定模型试验中结构面相对位移测试研究及工程应用  

Measuring Study and Engineering Application for Relative Displacement of Structural Planes in Model Test of High Dam Stability

作　　者：董建华[1,2] 张林[1,2] 陈建叶[1,2] 陈媛[1,2] 胡成秋[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试验室,四川成都610065 [2]四川大学水利水电学院,四川成都610065

出　　处：《水利与建筑工程学报》2012年第6期91-95,共5页Journal of Water Resources and Architectural Engineering

基　　金：国家自然科学基金资助项目(50879050;51109152);博士学科点专项科研基金(20100181110077)

摘　　要：在高坝整体稳定地质力学模型试验中,针对目前存在的结构面相对位移测试问题,采用应变测试技术,研制了用于获取结构面相对位移的测试仪器。测试时,用应变仪记录不同加载条件下相应测点的应变变化过程,再由埋设之前标定的位移和应变系数即可得出位移变化过程。通过小湾和大岗山拱坝整体稳定三维地质力学模型试验中的成功运用,表明该仪器结构设计合理,制作和使用方便,测试准确。In the geo-mechanical model test of high dam＇s global stability,and aiming at the test problem of the relative displacement of structural planes,the strain testing technology is used to develop a kind of measuring instrument as mentioned above.In the test,strain gauges are used to record the strain changes of measurement points under different loading conditions,then according to the coefficient between displacement and strain,the process of relative displacement changes is obtained.Through the successful application of the test instrument in 3-D geo-mechanical model test for the global stability of Xiaowan and Dagangshan high arch dam,it is indicated that the structure of the measurement instrument is reasonable,the manufacture and use of it are easy,and the test result of it is accurate.

关 键 词：地质力学模型试验 结构面相对位移 应变技术 

分 类 号：TV131[水利工程—水力学及河流动力学]