Study on Soil Landslide by Optical Metrology
A new optical metrology method for measuring soil landslide displacement is presented in this paper. Under the optical experimental system, the soil micro-displacement field can be measured by obtaining the digital images of the soil specimen under water load and searching the gray value in sub-pixels by digital image surface fitting technology. The results show that through the optical system, this nondestructive testing method can improve the measurement accuracy, and has a very good prospect of application in the study of soil landslide. The experimentation can provide useful data for disaster prevention and mitigation research and actual construction. In addition, if using a CCD with higher resolution and more effective record area, or using synthetic aperture technology to increase effective record area, the accuracy of the experiment are expected to be further enhanced.
Nondestructive testing Soil landslide Optical metrology Digital image processing Surface fitting
Wenwen Liu Yunhai Du Zhi Wang
Department of Engineering Mechanics, Zhengzhou University, Zhengzhou, China, 450001
国际会议
上海
英文
2015-2018
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）