透明土实验技术现状与展望  

Status and prospect of transparent soil experimental technique

作　　者：隋旺华[1] 高岳[1] LIU Jin-yuan 

机构地区：[1]中国矿业大学资源与地球科学学院深部岩土力学与地下工程国家重点实验室,江苏徐州221008 [2]Department of Civil Engineering, ltyerson University, Toronto M5 B 2K3, Canada

出　　处：《煤炭学报》2011年第4期577-582,共6页Journal of China Coal Society

基　　金：国家自然科学基金资助项目(41072237);深部岩土力学与地下工程国家重点实验室开放基金资助项目(SKLGDUEK0903);高等学校博士学科点专项科研基金(20100095110015)

摘　　要：回顾和评述了透明土实验技术的起源、材料的制备、岩土工程性质、实验设备与技术、图像捕捉与处理方法以及透明土实验技术的应用。模型实验中,采用激光散斑技术对透明土体内部的变形和渗流过程进行观测,得到相应过程的数字图像,再利用数字图像处理技术得到土体内部变形和渗流变化。对透明土实验技术的进一步发展提出了建议,认为目前急需建立透明土试样制备、指标测试和实验技术标准,并健全基于透明土的模拟理论。Presented a comprehensive review on the state of the art in transparent soil modeling technique,which included its origin,the sample preparation,geotechnical properties,the experimental methods,digital image processing methods,and the applications of transparent soil modeling.The laser speckle technique was used to capture the internal information in transparent soil.The internal displacement or seepage from two consecutive speckle images was calculated using digital image processing technology.After review of existing applications of transparent soil in geotechnical engineering,a prospect on further development and applications of this technique were discussed.For further research,it is vital to establish standard sample preparation procedures,develop standard modeling methods,and derive similarity laws.

关 键 词：透明土 无定型硅粉 无定形硅胶 熔融石英 数字图像处理 粒子图像测速技术 

分 类 号：TU449[建筑科学—岩土工程]