透明土土体变形测量系统中激光散斑图像的获取
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摘要
透明土试验技术实现了土体内部可视化,其变形测量的获取目前多通过与透明土相适应的透明土土体变形测量系统进行。该系统利用片状激光实现了对透明土的内部切片观察,通过获取激光散斑图像结合图像处理方法分析得到土体变形的情况。但是该系统在获取散斑图像时并没有考虑到激光在透明土试样内的散射特点及其对散斑图像的影响,存在一定的局限性。对此,通过对透明土中激光散射现象进行观测,归纳了透明土中激光散射的特点,并就激光散斑图像获取进行分析改进,同时应用图像处理技术解决了图像获取过程中可能产生的变形问题。
Transparent soil experimental technology realizes the internal visualization in soil. The deformation measurement of transparent soil can be achieved by transparent soil deformation measure system which is fit to transparent soil. This system uses laser sheet to realize the observation inside and analyzes laser speckle images which are got in the process of experiment to get soil deformation by image process method. But this system does not consider about the characteristics of laser scattering and its effect of speckle image when obtaining speckle images,it is limited. Therefore the phenomenon of laser scattering in transparent soil was observed and the characteristics of laser scattering were generalized,then the obtaining of speckle images were analyzed and improves and the problem of anamorphose in the process of obtaining speckle images were solved by image process method.
引文
1 沈泰.地质力学模型试验技术的进展.长江科学院院报,2001;18(5):32—36Shen Tai.Development of geomechanic model experiment techniques.Journal of Yangtze River Scientific Research Institute,2001;18 (5):32—36
    2 Watanabe Y,Lenoir N,Otani J,et al.Displacement in sand under triaxial compression by tracking soil particles on X-ray CT data.Soils and Foundations,2012;52(2):312—320
    3 Kawaguchi T.MRI measurement of granular flows and fluid-particle flows.Advanced Powder Technology,2010;21(3):235—241
    4 Iskander M.Modeling with transparent soils:visualizing soil structure interaction and multi phase flow,non-intrusively.Berlin:Springer,2010
    5 Liu Jinyuan.Visualization of 3-D Deformations Using Transparent Soil Models.New York:Polytechnic University,Academic Degrce Thesis,2003
    6 隋旺华,高岳.透明土实验技术现状与展望.煤炭学报,2011;36 (4):577—582Sui Wanghua,Gao Yue.Status and prospect of transparent soil experimental technique.Journal of China Coal Society,2011;36(4):577—582
    7孙吉主,肖文辉.基于透明土的盾构隧道模型试验设计研究.武汉理工大学学报,2011;33(5):108—112Sun Jizhu,Xiao Wenhui.Design on model test of shield tunneling in transparent soil.Journal of Wuhan University of Technology,2011;33(5):108—112
    8 赵红华,葛玉宁,李鹏飞.粒子测速技术和透明土在土与结构动力相互作用研究中的应用.西北地震学报,2011;33(增):148 —154Zhao Honghua,Ge Yuning,Li Pengfei.Application of PIV and transparent soil in the study of the dynamic soil-structure interation.Northwestern Seismological Journal,2011;33(Supp):148—154
    9 刘佳佳.基于透明土的盾构隧道开挖面稳定性分析.武汉:武汉理工大学,2012Liu Jiajia.Stability Analysis of shield tunnel excavation face using transparent soil.Wuhan:Wuhan University of Technology,2012
    10 曹兆虎,孔纲强,刘汉龙,等.基于透明土材料的沉桩过程土体三维变形模型试验研究.岩土工程学报,2014;36(2):395—400Cao Zhaohu,Kong Gangqiang,Liu Hanlong,et al.Model tests on 3-D soil deformation during pile penetration using transplant soils.Chinese Journal of Geotechnical Engineering,2014;36(2):395 —400
    11 胡澄.基于MIE散射理论的粉尘浓度测量研究.苏州:苏州大学,2007Hu Cheng.Investigation of dust density measurement based on scattering theory.Suzhou:Soochow University,2007
    12 贾光明.微粒群的粒度和溶液的折射率测量的研究.天津:天津大学,2005Jia Guangming.Investigation on sizing of particle potpourri and determining refractive index of solution.Tianjin:Tientsin University,2005
    13 任智斌,卢振武,刘玉玲,等.Mie理论归一化散射光强的研究.光电子激光,2003;14(1):83—85Ren Zhibin,Lu Zhenwu,Liu Yuling,et al.Study of Mie normalized scattered intensity distributions.Journal of Optoelectronics·Laser,2003;14(1):83—85
    14 陈延如,赵琦.随机分布粒子侧向散射光特性的实验研究.光学学报,2003;23(9):1110—1114Chen Yanru,Zhao Qi.Experimental study on property of a laser radiation side-scattered by the spherical particles distributed randomly.Acta Optica Sinica,2003;23(9):1110—1114
    15 孙昕.基于Mie散射理论测量微小球粒粒径的数值模拟及实验研究.天津:天津大学,2004Sun Xin.Simulation and experiment on sizing of micrometer-scale particles based on MIE’s light scattering theory.Tianjin:Tientsin University,2005
    16 王雪艳.基于米氏散射理论的粒度测试算法研究.西安:西安工业大学,2011Wang Xueyan.Research on particle size test algorithm based on Mie theory.Xi’an:Xi’an Technological University,2011
    17 王自亮,赵恩标,吕银庄,等.粉尘浓度光散射测量影响因素的分析.煤炭学报,2007;32(6):604—607Wang Ziliang,Zhao Enbiao,LüYinzhuang,et al.Study on influence factors of dust concentration measured.Journal of China Coal Society,2007;32(6):604—607

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