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tests were conducted on K0-consolidated Wenzhou saturated soft clay under undrained conditions by GDS triaxial apparatus. The stress-strain relationship, pore water pressure evolution and effective stress path under different stress paths were discussed. Using Skempton theory, a unified formula between pore pressure and axial strain was established through modifying the hyperbolic relationship under......
; 文章编号:1672-7207(2013)01-0251-06 Volcanic primary pore distribution sequence and its causes in Shixi Oilfield of Junggar Basin ZHANG Yong1, ZHA Ming1, CHEN Zhonghong1, DING Jing2 (1...) Abstract: The volcanic primary pore distribution sequence of Carboniferous in Shixi Oilfield of Junggar Basin was studied by making use of the observation of core samples, microscopic identification......
Pore-scale simulation of gas-water flow in low permeability gas reservoirsCAO Ting-kuan(曹廷宽)1, DUAN Yong-gang(段永刚)1, YU Bo-ming(郁伯铭)2, FANG Quan-tang(方全堂)1, WANG Rong(王容)3(1. State Key Laboratory...) network model representing pore space in low permeability sandstone. Digital core of rock sample was established by the combination of micro-CT scanning and image processing, then 3D pore-throat......
of this area.Key words:capillary pressure; saturation; J function; pore radius......
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to investigate the characteristics of stress-strain relation and the dissipation of pore water pressure by the hollow cylinder apparatus. It is found that the stress-strain response and the dissipation process of pore water pressure are composed of three stages, including the low intensive strength stage, the superlinear strength recovery stage and the sublinear strength recovery stage......
is built to deduce the relationship among pore wall thickness, porosity and average pore size. Non-uniform closed-cell foam aluminum model with different structural parameters and random pore distribution... with the reducing of porosity. For the aluminum foam with the same porosity, different pore distributions result in different thermal conductivities. The temperature distribution in aluminum foam is non-uniform......
(2010)06-2313-08 Effect of ground limestone on hydration characteristics and pore structure of cement pastes XIAO Jia, JIN Yong-gang, GOU Cheng-fu, WANG Yong-he (School of Civil and Architectural Engineering, Central South University, Changsha 410075, China) Abstract: The hydration characteristics and pore structure of the cement-ground limestone pastes were studied by X-ray diffractrometry......
immersed in ultrapure water to study the influence of immersion on the surface permeability of cement based materials by monitoring the evolution of surface permeability, pore structure and paste... of immersion duration. The surface permeability coefficient after a 150-d immersion is only half of that measured after a 30-d immersion. The long-term immersion facilitates the refinement of the pore......
increases after heating modification; heating modification is more effective than acid modification for optimizing pore structure of activated carbon; increasing the effective pore volume is an effective... groups; pore structure; adsorption; adsorption energy......