Sample preparation technique and microstructure quantification WANG Dong-wei, LU Wu-ping, TANG Chao-sheng, ZHAO Hong-wei, LI Sheng-jie, LIN Luan, LENG Ting. Three-dimensional parallel numerical simulation of porous rocks based on CT technology and digital image processing LANG Ying-xian, LIANG Zheng-zhao, DUAN Dong, CAO Zhi-lin. Rock and Soil Mechanics, 2019, 40(7): 2825-2837.Īnalysis on the seismic response of stone columns composite foundation ĭetermination of ultimate bearing capacity of uplift piles
MU Rui, PU Shao-yun, HUANG Zhi-hong, LI Yong-hui, ZHENG Pei-xin, LIU Yang, LIU Ze, ZHENG Hong-chao. The evolution of cracks in the dewatering shrinkage process of hipparion red soil Rock and Soil Mechanics, 2019, 40(9): 3635-3644.ĭU Chang-cheng, ZHU Yan-bo, MIAO Shuai-sheng, GAO Ming-ming, ZHU Jun-hua, ZHAO Fa-suo. Vibrating load induced by high-speed train YANG Wen-bo, ZOU Tao, TU Jiu-lin, GU Xiao-xu, LIU Yu-chen, YAN Qi-xiang, HE Chuan.Īnalysis of dynamic response of horseshoe cross-section tunnel under Key words: digital image, pixel unit, FLAC3D, quasi-3D model, interface program In a word, this paper gives a typical example that the digital image serves geotechnical engineering. Finally, the stability of landslide is analyzed by strength reduction method, whose results(such as the safety factor and the location of most dangerous slip surface) are in better agreement with those calculated by limit equilibrium method, which shows the computability of the model from IMAGE-FLAC3D. The case study shows that the intuition, fastness and automation of modeling can be realized. Then a finite difference model of soil-rock mixture and a finite difference model of landslide are developed, which show the feasibility of IMAGE-FLAC3D. Through the interface program of IMAGE-FLAC3D, we can easily generate a microscopic and macroscopic irregular quasi-3D model based on the digital image in a short time. A new modeling method is put forward and an interface program of IMAGE-FLAC3D is realized by visual basic language in order to build numerical model of FLAC3D based on pairs of pixel units index numbers (i, j) and give the element different properties as well as different function modules(such as excavation, backfill) based on the color attribute of pixels. During the application of fast Lagrandian analysis of continua in 3 dimensions (FLAC3D), even for some simple irregular geologic bodies, the generation of quasi-3D numerical model with FLAC3D is difficult to construct.
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