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Trans. Nonferrous Met. Soc. China 26(2016) 1912-1918 Static and dynamic tensile failure characteristics of rock based on splitting test of circular ring Di-yuan LI1, Tao WANG1, Teng-jiao CHENG2, Xiao...; accepted 6 June 2016 Abstract: Static and dynamic splitting tests were conducted on ring marble specimens with different internal diameters to study the tensile strength and failure modes with the change......
under Brazilian splitting test in dry and saturated condition WANG Huiwen, LI Jiangteng, GAO Jichao, LIN Hang (School of Resources and Safety Engineering, Central South University, Changsha 410083, China) Abstract: In order to study the related law of the tensile strength of slates in different bedding angles in dry and saturated condition, failure load, saturated water content, tensile strength......
Experimental investigation of clam water impact on flatted-bottom seafloor mining toolHU Xiao-zhou(胡小舟)1, 2, LIU Shao-jun(刘少军)1, 2(1. School of Mechanical and Electrical Engineering, Central South..., China)Abstract:A test rig for constant velocity water entry experiments was developed that drives a flatted-bottom section attached on six degree of freedom(6-DOF) platform to enter the water vertically......
Energy research on slates with bedding structure under Brazilian splitting tests in dry and saturated condition ZHU Sichen, LI Jiangteng (School of Resources and Safety Engineering, Central South... beddings of cylindrical specimen slate in Brazil splitting test were selected, and the law of energy characteristics was obtained. The results show that the absorbed energy grows nonlinearly......
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hazard, such as high pressure water burst of rock engineering, hydraulic fracturing, and so on, the splitting damage mechanism of rock mass fractures and anisotropic seepage characteristics under high water pressure were studied. The coupling theory model for seepage-splitting-damage of rock mass fractures under high water pressure was established, in which the contribution of seepage pressure......
Water coning mechanism in Tarim fractured sandstone gas reservoirsSHEN Wei-jun(沈伟军)1, 2, LIU Xiao-hua(刘晓华)3, LI Xi-zhe(李熙喆)3, LU Jia-liang(陆家亮)3(1. Institute of Porous Flow and Fluid Mechanics..., Langfang 065007, China)Abstract:The problem of water coning into the Tarim fractured sandstone gas reservoirs becomes one of the major concerns in terms of productivity, increased operating costs......
Corrosion characteristics of copper in magnetized sea water ZHANG Peng(张鹏)1, GUO Bin(郭斌)1, JIN Yong-ping(金永平)1, CHENG Shu-kang(程树康)2 1. School of Materials Science and Engineering, Harbin... in the magnetized sea water is minimal compared with that in 3.5% NaCl solution and sea water. Electrochemical impedance spectroscopy (EIS) plots of copper in 3.5% NaCl, sea water and magnetized sea water......
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J. Cent. South Univ. (2019) 26: 2623-2633 DOI: https://doi.org/10.1007/s11771-019-4199-z Tribological behavior of Cu-15Ni-8Sn/graphite under sea water,distilled water and dry-sliding conditions... stainless steel under dry-sliding, deionized water and sea water were investigated on a block-on-ring configuration. The results indicated that the friction coefficient was the lowest under dry-sliding......