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渗流模型实验能够模拟天然岩土体中的渗流过程以及流体在介质中的运动规律,因此被广泛地应用于岩土、石油工程等多个领域的研究中.然而在传统的渗流模型实验中,由于模型介质的不透明,流体在介质中具体的渗流过程、扩散规律和赋存状态并不能被直观地观测到.因此在总结了可视化渗流实验的研究进展,归纳了现有成果取得的进展与存在的不足;提出了一种基于透明岩土相似材料,并结合光学观测手段、数字图像处理技术和示踪技术的可视化渗流实验新技术,对比分析了该技术与传统可视化渗流实验的优缺点.结果表明相较于传统渗流实验,该技术除了可以实现具体渗流过程的可视化观测外,还具有装置简单、易于操作、经济适用等方面的优点.表明利用这种材料开展渗流实验的可视化观测是可行的,为基于透明岩土材料的可视化渗流模型实验的开展奠定了理论基础.
The seepage flow model experiment can simulate the seepage process in natural rock and soil as well as the fluid movement in the medium, so it is widely used in many fields such as geotechnical engineering, petroleum engineering, etc. However, in the traditional seepage model experiment, Due to the opacity of the model medium, the specific seepage process, diffusion law and occurrence state of the fluid in the medium can not be directly observed, therefore, the progress of the visualized seepage experiment is summarized, and the progress and existence of the existing achievements are summarized This paper presents a new visual seepage experiment technology based on the transparent geotechnical similar materials combined with optical observation, digital image processing and tracing technology, and compares the advantages and disadvantages between this technology and traditional visualized seepage experiment.Results It shows that compared with the traditional seepage experiment, this technology can not only realize the visual observation of specific seepage process, but also has the advantages of simple device, easy operation and economical application, which shows that it is feasible to use this material to visualize the seepage experiment , Which is laid for the experiment of visual seepage model based on transparent geomaterials Theoretical basis.