|
|
|
| Experimental study on visualization test method of whole process shearing
of model rock joints |
| LU Tan1,HUANG Man1,HONG Chenjie2,DU Shigui3,LIU Yanqiang1 |
| (1. School of Civil Engineering,Shaoxing University,Shaoxing,Zhejiang 312000,China;2. School of Mechanics and Civil Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China;3. School of Civil
Engineering and Environment,Ningbo University,Ningbo,Zhejiang 315000,China)
|
|
|
|
|
Abstract Visualization test of whole shear process is of great significance to study progressive failure characteristics of rock joints. The study combines three-dimensional laser scanning,printing technology with transparent photosensitive resin material(veroclear) to produce high-precision transparent models of rock joints. Carry out uniaxial compression experiments at different temperatures,the experimental results show that the performance of this material is similar to that of rock material at -30 ℃–-45 ℃. Local modification of shearing equipment based on semiconductor refrigeration technology,The refrigeration performance tests under different working conditions show that after 50 minutes of operation,the cooling performance of semiconductor refrigeration equipment is gradually reduced by forced convection,and the temperature inside the cavity is maintained at about -17 ℃. Combined with the dark channel prior defogging algorithm and the visual monitoring method,the surface morphology of the whole shear process of the rock joints surface can be obtained more clearly,which effectively solves the problem of specimen fogging low temperature test conditions. The shear test shows that the temperature of the sample is always lower than -30 ℃ in the whole process of the test at low temperature,which meets the temperature requirements of photosensitive resin material as rock-like characteristics. The feasibility of the test equipment and test technology is further verified,which creates conditions for a visual test method for the whole shear process of rock joints.
|
|
|
|
|
|
| [1] 夏才初,唐志成,宋英龙,等. 节理峰值剪切位移及其影响因素分析[J]. 岩土力学,2011,32(6):1 654–1 658.(XIA Caichu,TANG Zhicheng,SONG Yinglong,et al. Analysis of joint peak shear displacement and its influencing factors[J]. Rock and Soil Mechanics,2011,32(6):1 654–1 658.(in Chinese))
[2] 夏才初,宋英龙,唐志成,等. 粗糙节理剪切性质的颗粒流数值模拟[J]. 岩石力学与工程学报,2012,31(8):1 545–1 552.(XIA Caichu,SONG Yinglong,TANG Zhicheng,et al. Numerical simulation of particle flow for the shear properties of rough joints[J]. Chinese Journal of Rock Mechanics and Engineering,2012,31(8):1 545–1 552.(in Chinese))
[3] 陈世江,朱万成,刘树新,等. 岩体结构面粗糙度各向异性特征及尺寸效应分析[J]. 岩石力学与工程学报,2015,34(1):57–66. (CHEN Shijiang,ZHU Wancheng,LIU Shuxin,et al. Anisotropy characteristics of roughness of rock mass discontinuities and size effect analysis[J]. Chinese Journal of Rock Mechanics and Engineering,2015,34(1):57–66.(in Chinese))
[4] DONG J J,PAN Y W. Hierarchical model of rough rock joints based on micromechanics[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts,1996,33(2):111–123.
[5] EINSTEIN H H,VENEZIANO D,BAECHER G B,et al. The effect of discontinuity persistence on rock slope stability[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts,1983,20(5):227–236.
[6] 杜时贵,黄 曼,罗战友,等. 岩石结构面力学原型试验相似材料研究[J]. 岩石力学与工程学报,2010,29(11):2 263–2 270.(DU Shigui,HUANG Man,LUO Zhanyou,et al. Similar material study of mechanical prototype test of rock structural plane[J]. Chinese Journal of Rock Mechanics and Engineering,2010,29(11):2 263–2 270.(in Chinese))
[7] 郭 健,张 鹏,黄波林,等. 巫峡岩溶岸坡结构面相似材料试验研究—以箭穿洞危岩体为例[J]. 水利水电技术,2020,51(9):193–199.(GUO Jian,ZHANG Peng,HUANG Bolin,et al. Experimental study on similar material for structural plane of karst bank-slope of Wuxia Gorge—A case study of Jianchuandong perilous rock mass[J]. Water Resources and Hydropower Engineering,2020,51(9):193–199.(in Chinese))
[8] MANNHEIMER R. Slurries you can see through[J]. Technology Tody,1990,(3):2.
[9] ISKANDER M,SADEK S,LIU J. Optical measurement of deformation using transparent silica gel to model sand[J]. International Journal of Physical Modelling in Geotechnics,2002,2(4):13–26.
[10] 张顺金. 透明岩体相似材料研制与实验应用研究[硕士学位论文][D]. 徐州:中国矿业大学,2014.(ZHANG Shunjin. Study on the development of transparent similar materials for rock mass and its experimental applications[M .S. Thesis][D]. Xuzhou:China University of Mining and Technology,2014.(in Chinese))
[11] 李元海,林志斌,秦先林,等. 透明岩体相似材料物理力学特性研究[J]. 中国矿业大学学报,2015,44(6):977–982.(LI Yuanhai,LIN Zhibing,QIN Xianling,et al. Study of development of transparent rock mass for physical similarity experiment and its mechanical properties[J]. Journal of China University of Mining and Technology,2015,44(6):977–982.(in Chinese))
[12] 许国安. 深部巷道围岩变形损伤机制及破裂演化规律研究[博士学位论文][D]. 徐州:中国矿业大学,2011.(XU Guoan. Research on the mechanism and evolution law of rock deformation and cracking around deep tunnels[Ph. D. Thesis][D]. Xuzhou:China University of Mining and Technology,2011.(in Chinese))
[13] 刘燕强. 岩石结构面剪切全过程的可视化试验方法及试验验证[硕士学位论文][D]. 绍兴:绍兴文理学院,2019.(LIU Yanqiang. Visual test method and experimental verification for the whole shear process of rock structural plane[M. S. Thesis][D]. Shaoxing:Shaoxing University,2019.(in Chinese))
[14] 时 阳. 制冷技术[M]. 中国轻工业出版社,2007:4–7.(SHI Yang. Refrigeration technique[M]. Beijing:China Light Industry Press,2007:4–7.(in Chinese))
[15] TASSOU S A,LEWIS J S,GE Y T,et al. A review of emerging technologies for food refrigeration applications[J]. Applied Thermal Engineering,2010,30(4):263–276.
[16] CHEN S,YUE Z Q,THAM L G. Digital image-based numerical modeling method for prediction of inhomogeneous rock failure[J]. International Journal of Rock Mechanics and Mining Sciences,2004,41(6):939–957.
[17] 朱泽奇,肖培伟,盛 谦,等. 基于数字图像处理的非均质岩石材料破坏过程模拟[J]. 岩土力学,2011,32(12):3 780–3 786.(ZHU Zeqi,XIAO Peiwei,SHENG Qian,et al. Numerical simulation of fracture propagation of heterogeneous rock material based on digital image processing[J]. Rock and Soil Mechanics,2011,32(12):3 780–3 786.(in Chinese))
[18] 尹延春,赵同彬,谭云亮,等. 基于Otsu图像处理的岩石细观模型重构及数值试验[J]. 岩土力学,2015,36(9):2 532–2 540.(YIN Yanchun,ZHAO Tongbin,TAN Yunliang,et al. Reconstruction and numerical test of the mesoscopic model of rock based on Otsu digital image processing[J]. Rock and Soil Mechanics,2015,36(9):2 532–2 540.(in Chinese))
[19] 黄 曼,洪陈杰,杜时贵,等. 岩石结构面形貌分级方法及两级粗糙特性研究[J]. 岩石力学与工程学报,2020,39(6):1 153–1 164. (HUANG Man,HONG Chenjie,DU Shigui,et al. Study on the classification method of rock structure surface and its two-level roughness characteristics[J]. Chinese Journal of Rock Mechanics and Engineering,2020,39(6):1 153–1 164.(in Chinese))
[20] HUANG M,HONG C J,DU S G,et al. Experimental technology for the shear strength of the series-scale rock joint model[J]. Rock Mechanics and Rock Engineering,2020,53(12):5 677–5 695.
[21] 洪陈杰,黄 曼,夏才初,等. 岩体结构面各向异性变异系数的尺寸效应研究[J]. 岩土力学,2020,41(6):2 098–2 109.(HONG Chenjie,HUANG Man,XIA Caichu,et al. Size effect study on anisotropic variation coefficient of rock joint[J]. Rock and Soil Mechanics,2020,41(6):2 098–2 109.(in Chinese))
[22] 罗战友,李 棋,熊志强,等. 吻合岩石结构面一体化制作模具研制及试验对比研究[J]. 岩石力学与工程学报,2018,37(3):689–698. (LUO Zhanyou,LI Qi,XIONG Zhiqiang,et al. Development and experimental comparative study of the integrated mold for fit joint of rock[J]. Chinese Journal of Rock Mechanics and Engineering,2018,37(3):689–698.(in Chinese))
[23] TATONE B,GRASSELLI G. A new 2D discontinuity roughness parameter and its correlation with JRC[J]. International Journal of Rock Mechanics and Mining Sciences,2010,47(8):1 391–1 400.
[24] TATONE B,GRASSELLI G. An investigation of discontinuity roughness scale dependency using high-resolution surface measurements[J]. Rock Mechanics and Rock Engineering,2013,46(4):657–681.
[25] 王 里. 混凝土类非均质固体的三维结构与应力场的可视化分析[博士学位论文][D]. 北京:中国矿业大学(北京),2017.(WANG Li. Three dimensional mesoscale structure and visualization analysis of the stress field aggregated heterogeneous materials[Ph. D. Thesis][D]. Beijing:China University of Mining and Technology(Beijing),2017.(in Chinese))
[26] 宣向春,王维扬. 半导体制冷器的进展[J]. 半导体技术,1999,24(1):14–18.(XUAN Xiangchun,WANG Weiyang. Development of semiconductor cooler[J]. Semiconductor Technology,1999,24(1):14–18.(in Chinese))
[27] 张 奕,张小松,胡 洪,等. 冷/热端散热对半导体冷藏箱性能的影响[J]. 江苏大学学报:自然科学版,2008,29(1):43–46.(ZHANG Yi,ZHANG Xiaosong,HU Hong,et al. Investigation on thermoelectric refrigeration on system with different heat rejection at cold and hot sides[J]. Journal of Jiangsu University:Natural Science,2008,29(1):43–46.(in Chinese))
[28] 张晓芳,钟建新,杨 穗. 水冷式半导体冰箱制冷性能的研究[J]. 工程设计学报,2012,19(2):105–111.(ZHANG Xiaofnag,ZHONG Xinjian,YANG Sui.Water cooling effects on thermoelectric refrigerators[J]. Chinese Journal of Engineering Design,2012,19(2):105–111.(in Chinese))
[29] 姜 坪,魏晓雯,穆宜轩. 基于蒸发冷却的半导体制冷装置制冷性能研究[J]. 低温工程,2021,1(2):6.(JIANG Ping,WEI Xiaowen,MU Yixuan. Study on refrigeration performance of semiconductor cooling device based on evaporative cooling condition[J]. Cryogenics,2021,1(2):6.(in Chinese))
[30] 李尧羿,杜宇超,顾振飞. 结合天空区域识别的单幅图像去雾方法[J]. 计算机工程与应用,2018,54(19):204–215.(LI Yaoyi,DU Yuchao,GU Zhenfei. Single image dehazing method via sky region recognition[J]. Computer Engineering and Applications,2018,54(19):204–215.(in Chinese))
[31] 胡一冰,唐 晨,陶 珊. 基于多尺度Retinex算法的光干涉条纹图像增强[J]. 激光与光电子学进展,2019,56(24):124–131.(HU Yibing,TANG Chen,TAO Shan. Enhancement of optical interferometry fringe patterns based on multiscale Retinex algorithm[J]. Laser and Optoelectronics Progess,2019,56(24):124–131.(in Chinese))
[32] LIU H,LU H,ZHANG Y. Image enhancement for outdoor long-range surveillance using IQ-learning multiscale Retinex[J]. Iet Image Processing,2017,11(9):786–795.
[33] 余 萍,郝成成. 基于分数阶微分和多尺度Retinex联合的雾霭图像增强算法[J]. 激光与光电子学进展,2018,55(1):280–285.(YU Ping,HAO Chengcheng. Foggy image enhancement by combined fractional differential and multi-scale Retinex[J]. Laser and Optoelectronics Progess,2018,55(1):280–285.(in Chinese))
[34] HE K,JIAN S,FELLOW,et al. Single image haze removal using dark channel prior[J]. IEEE Transactions on Pattern Analysis and Machine Intelligence,2011,33(12):2 341–2 353.
[35] 彭 静,薛奉金,苑玉彬. 基于多尺度Retinex和暗通道的自适应图像去雾算法[J]. 激光与光电子学进展,2021,58(4):117–125. (PENG Jing,XUE Fengjin,YUAN Yubin. Adaptive image defogging algorithm combing multi-scale Retinex and dark channel[J]. Laser and Optoelectronics Progess,2021,58(4):117–125.(in Chinese)) |
|
|
|