基于SEM图像的软土三维孔隙率计算及影响因素分析

doi:10.13722/j.cnki.jrme.2014.1302

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (1091 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to obtain a wealth of SEM image information for soil microstructure research，a larger number of SEM images for soft soil in Zijingang Hangzhou had been scanned. Three-dimensional calculation model was built by analyzing the characteristics of soft soil SEM image. First proposed the method of the use of Image-Pro Plus (IPP) to calculate soft soil three-dimensional porosity，the influences of calculated step size，magnification，threshold size and analysis area size on calculated results were studied. The results show that，calculation accuracy relates to step size，smaller step size is corresponding to a higher accuracy，and step size 2 can both satisfied the computing capacity and accuracy requirements. it is suitable to choose a magnification of 1200±300 times to calculate three-dimensional porosity. Threshold value size relates to magnification times，greater magnification should be increased threshold value accordingly. Area of analysis can not be too small，only by choosing over 70% of the total area of the image can effectively reflect the entire information of the image.

Key words： Microstructure；SEM image Threshold Three-dimensional porosity

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2014.1302 OR http://www.rockmech.org/EN/Y2015/V34/I07/22

[9]	TOVEY N K. A digital computer technique for orientation analysis of micrographs of soil fabric[J]. Journal of Microscopy，1980，120：303-315 " target="_blank">
[7]	施斌. 黏性土击实过程中微观结构的定量评价[J]. 岩土工程学报，1996，18(4)：57-62.(SHI Bin. Quantitative assessment of changes of microstructure for clayey soil in the process of compaction[J]. Chinese Journal of Geotechnical and Engineering，1996，18(4)：57-62.(in Chinese)) " target="_blank">
[11]	王宝军，施斌，刘志彬，等. 基于GIS的黏性土微观结构的分形研究[J]. 岩土工程学报，2004，26(2)：244-247.(WANG Baojun，SHI Bin，LIU Zhibin，et al.Fractal study on microstructure of clayey soil by GIS[J]. Chinese Journal of Geotechnical and Engineering，2004，26(2)：244-247.(in Chinese))
[13]	SHI B，LI S. Quantitative approach on SEM images of microstructure of clay soils[J]. Science in China，Series B，1995，36(8)：741-748. " target="_blank">
[18]	李涛，刘波，李岩，等. 基于微观结构的饱和红黏土孔隙比计算[J]. 中国矿业大学学报，2011，40(5)：720-725.(LI Tao，LIU Bo，LI Yan，et al. The void ratio of saturated red clay calculated from a micro-structure mode l[J]. Journal of China University of Mining & Technology，2011，40(5)：720-725.(in Chinese))
[21]	毛灵涛，薛茹，安里千，等. 软土孔隙微观结构的分形研究[J] .中国矿业大学学报，2005，34(5)，600-604.(MAO Lingtao，XU Ru，AN Liqian，et al. Fractal approach on soft soil porosity microstructure[J]. Journal of China University of Mining and Technology，2005，34(5)，600-604.(in Chinese)) " target="_blank">
[1]	卡尔.塔萨奇，雷尔夫. 皮. 泼克著. 蒋彭年译.工程实用土力学[M]. 北京：水利水电出版社，1960.(TERZAGHIK，PECK R B. Translated by JIANG Pengnian. Soil mechanics in engineering practice[M]. Beijing：Water Resources and Hydro-power publisher，1960.(in Chinese)) " target="_blank">
[2]	TOVEY N K，KRINSLEY D H. Mapping of the orientation of fine-grained mineral in soils and sediments[J]. Bulletin of LAEG，1992，46：93-101. " target="_blank">
[6]	Baker JC，Grabowska-Olszewska B，Uwins PJR. ESEM study of osmotic swelling of bentonite from Radzionkow[J]. Applied Clay Science，1995，9：465-469. " target="_blank">
[20]	MCDOWELL G R，BOLTON M D. On the micromechanics of crushable aggregates[J]. Geotechnique，1998，48(5)：667-679. " target="_blank">
[3]	吴义祥.工程黏性土微观结构的定量评价[J].中国地质科学院院报，1991，23：143-151.(WU Yixiang. Quantitative approach on micro-structure of engineering clay[J]. Bulletin of the Chinese academy of Geological Sciencse，1991，23：143-151. (in Chinese)) " target="_blank">
[4]	Enrique Romero，Paul H. Simms. Microstructure Investigation in Unsaturated Soils：A Review with Special Attention to Contribution of Mercury Intrusion Porosimetry and Environmental Scanning Electron Microscopy[J]. Geotechnical and Geological Engineering，2008，26：705-727. " target="_blank">
[5]	Botao Lin，Amy B. Cerato. Prediction of expansive soil swelling based on four micro-scale properties[J]. Bulletin of Engineering Geology and the Environment，2012，71：71-78. " target="_blank">
[8]	OSIPOV J B，SOKOLOY B K. On the texture of clay soils of different genesis investigated by magnetic anisotropy method[J]. Proceedings of the International Symposium on Soil Structure. Gothenburg，Sweden，1973，21-29 " target="_blank">
[10]	刘志彬，施斌，王宝军. 改性膨胀土微观孔隙定量研究[J]. 岩土工程学报，2004，26(4)：526-530.(LIU Zhibin，SHI Bin，WANG Baojun. Quantitative research on micropores of modified expansive soils[J]. Chinese Journal of Geotechnical and Engineering，2004，26(4)：526-530. (in Chinese))
[12]	唐朝生，施斌，王宝军. 基于SEM土体微观结构研究中的影响因素分析[J]. 岩土工程学报，2008，30(4)：560-565.(TANG Chaosheng，SHI Bin，WANG Baojun. Factors affecting analysis of soil microstructure using SEM[J]. Chinese Journal of Geotechnical and Engineering，2008，30(4)：560-565.(in Chinese))
[14]	熊承仁，唐辉明，刘宝深，等. 利用SEM照片获取土的孔隙结构参数[J]. 地球科学：中国地质大学学报，2007，32(3)：415-419.(XIONG Chengren，TANG Huiming，LIU Baochen，et al. Using SEM photos to gain the pore structural parameters of soil samples[J]. Earth Science(Journal of China University of Geosciences)，2007，32(3)：415-419.(in Chinese)) " target="_blank">
[15]	王宝军，施斌，蔡奕，等. 基于GIS的黏性土SEM图像三维可视化与孔隙度计算[J]. 岩土力学，2008，29(1)：251-255.(WANG Baojun，SHI Bin，CAI Yi，et al.3D visualization and porosity computation of clay soil SEM image by GIS[J]. Rock and Soil Mechanics，2008，29(1)：215-255.(in Chinese)) " target="_blank">
[16]	张先伟，孔令伟，郭爱国，等. 基于SEM和MIP试验结构性黏土压缩过程中微观孔隙的变化规律[J]. 岩石力学与工程学报，2012，31(2)：406-412.(ZHANG Xianwei，KONG Lingwei，GUO Aiguo，et al. Evolution of microscopic pore of structured clay in compression process based on SEM and MIP test[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(2)：406-412.(in Chinese))
[17]	袁则循，毛灵涛，赵丹. 基于数字地形模型土微结构三维孔隙度的计算方法[J]. 辽宁工程技术大学学报：自然科学版，2011，30(5)：734-737.(YUAN Zexun，MAO Lintao，ZHAO Dan. Computation method on 3D porosity of soil microstructure based on digital terrain model[J]. Journal of Liaoning Technical University：Natural Science，2011，30(5)：734-737.(in Chinese))
[19]	刘志彬. 非饱和土中团聚体的组构与强度研究[博士学位论文][D]. 南京：南京大学，2004.(LIU Zhibin. Research on fabric and strength of soil aggregates in unsaturated soils[Ph. D. Thesis][D]. Nanjing：Nanjing University，2004.(in Chinese)) " target="_blank">
[22]	刘莹，王清. 吹填土沉积后微观结构特征定量化研究[J]. 水文地质工程地质，2006，3：124-127.(LIU Ying，WANG Qing. Quantitative study of microstructure characteristics of dredger fills after sediment[J]. Hydrogeology and Engineering Geology，2006，3：124-127.(in Chinese))
[23]	牛岑岑，王清，苑晓青，等. 渗流作用下吹填土微观结构特征定量化研究[J]. 吉林大学学报:地球科学版，2011，41(4)，1 104-1 109. (NIU Cencen，WANG Qing，YUAN Xiaoqing，et al. Quantitative research on microstructure features of dredger fill under seepage flow[J]. Journal of Jilin University：Earth Science Edition，2011，41(4)：1 104-1 109.(in Chinese))
[24]	郭印，徐日庆，邵玉芳，等. 有机质固化土的强度及微观结构试验研究[J]. 岩土力学，2006，27(增)，(10)：534-538.(GUO Yin，XU Riqing，SHAO Yufang，et al. Test research on strength and microstructure of stabilized soil contained organic matter[J]. Rock and Soil Mechanics，2006，27(Supp)：534-538.(in Chinese))