应用激光散斑法研究模拟滑坡土体的变形破坏过程  

Application of Laser Speckle Interferometry to Process of Deformation and Crack Study on Landslide Model

作　　者：胡卸文[1] 赵泽三 

机构地区：[1]成都地质学院,610059

出　　处：《应用激光》1992年第3期133-136,共4页Applied Laser

摘　　要：通过激光散斑法在模拟滑坡土体变形破坏过程研究中的应用,表明在滑坡体失稳之前,土体表面各点位移大小和方向随所处部位而异,且滑坡体最终失稳就是由于土体滑动带附近各种微细破裂累计作用的结果。而这种微观变形及破裂过程是常规试验无法测得的。In this paper, the application of laser speckle interferometry to process of defor-mation and crack study on landslide model. It is made clear that before the landslide lose steady,the size and direction of displacement on the model surface varies with the location of everypoint, and the final losing steady of the landslide is result which is caused by all kinds of accu-mulation effect of micro-crack nearing the lanslide-zone. But we are unable to measure the pro-cess of micro-deformation and crack by common experiments.

关 键 词：激光 散斑干涉 滑坡 变形 破坏 

分 类 号：P642.22[天文地球—工程地质学]