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Brittleness evaluation of gas-bearing coal based on statistical damage constitution model and energy evolution mechanism
《Journal of Central South University》2025年第2期566-581,共16页XUE Yi WANG Lin-chao LIU Yong RANJITH P G CAO Zheng-zheng SHI Xu-yang GAO Feng KONG Hai-ling 
Project(52274096)supported by the National Natural Science Foundation of China;Project(WS2023A03)supported by the State Key Laboratory Cultivation Base for Gas Geology and Gas Control,China。
Accurate assessment of coal brittleness is crucial in the design of coal seam drilling and underground coal mining operations.This study proposes a method for evaluating the brittleness of gas-bearing coal based on a ...
关键词：gas pressure statistical damage constitutive model energy evolution mechanism brittleness evaluation gas bearing coal 
Load-bearing characteristics and energy evolution of fractured rock masses after granite and sandstone grouting
《Journal of Central South University》2024年第8期2810-2825,共16页WU Xu-kun ZHAO Guang-ming MENG Xiang-rui LIU Chong-yan LIU Zhi-xi HUANG Shun-jie ZHANG Qi-hang 
Project(2023YFC2907600)supported by the National Key Research and Development Program of China;Project(202203a07020011)supported by the Major Science and Technology Projects of Anhui Province,China;Project(T2021137)supported by the National Talent Project,China;Project(T000508)supported by the Leading Talent Project of the Special Support Plan of Anhui Province,China;Project(GXXT-2021-075)supported by the University Synergy Innovation Program of Anhui Province,China;Project(2022AH010053)supported by the Excellent Scientific Research and Innovation Team of Universities in Anhui Province,China;Project(2022CX1004)supported by the Anhui University of Science and Technology Postgraduate Innovation Fund Project,China。
Experiments on grouting-reinforced rock mass specimens with different particle sizes and features were carried out in this study to examine the effects of grouting reinforcement on the load-bearing characteristics of ...
关键词：grouting-reinforced rock mass particle size energy dissipation ratio post-peak stress decreasing rate load-bearing characteristics 
Thermodynamic analysis on tin precipitation behavior in Ti-bearing peritectic steel after magnesium treatment被引量：4
《Journal of Central South University》2020年第12期3637-3651,共15页QU Tian-peng WANG De-yong WANG Hui-hua HOU Dong TIAN Jun 
Projects(51774208,52074186,U1860205)supported by the National Natural Science Foundation of China。
TiN,which is ubiquitous in Ti-bearing steel,has a critical influence on both the mechanical properties and the welding process of steel,and therefore researche on the precipitation behavior of TiN in molten steel bath...
关键词：magnesium treatment peritectic steel TIN heterogeneous nucleation thermodynamic analysis 
Provenance and salt structures of gypsum formations in Pb-Zn ore-bearing Lanping basin,Southwest China被引量：1
《Journal of Central South University》2020年第6期1828-1845,共18页ZHANG Zhi-bo ZHU Zhi-jun LI Huan JIANG Wei-cheng WANG Wen-feng XU Ying LI Li-rong 
Project(41362008)supported by the National Natural Science Foundation of China。
Large-scale gypsum rocks associated with world-class Pb-Zn ore formations are widely distributed in the Lanping Basin,Sowthwest China.Geochemical studies alongside field investigations were conducted in this study to ...
关键词：Lanping basin GYPSUM marine sediment Sr–S isotopes salt structure 
Growth of metallic iron particles during reductive roasting of boron-bearing magnetite concentrate被引量：4
《Journal of Central South University》2020年第5期1484-1494,共11页ZHANG Xin LI Guang-hui RAO Ming-jun MI Huan-peng LIANG Bin-jun YOU Jin-xiang PENG Zhi-wei JIANG Tao 
Project(51804346)supported by the National Natural Science Foundation of China;Project(2019JJ50767)supported by the Natural Science Foundation of Hunan Province,China;Project(KY[2017]125)supported by Youth Foundation of Guizhou Education Department,China。
The growing characteristics of metallic iron particles during reductive roasting of boron-bearing magnetite concentrate under different conditions were investigated.The size of the metallic iron particles was quantita...
关键词：ludwigite ore reductive roasting metallic iron grain growth size measurement 
Catalytic effect of silver-bearing solid waste on chalcopyrite bioleaching:A kinetic study被引量：9
《Journal of Central South University》2020年第5期1395-1403,共9页LIAO Rui WANG Xing-xing YANG Bao-jun HONG Mao-xing ZHAO Hong-bo WANG Jun QIU Guan-zhou 
Project(2018JJ1041)supported by the Natural Science Foundation of Hunan,China;Projects(51774332,U1932129,51804350 and 51934009)supported by the National Natural Science Foundation of China。
Silver ion can be useful in improving chalcopyrite bioleaching efficiency.In this work,leaching kinetics of this process was investigated using silver-bearing solid waste under different chalcopyrite/solid waste ratio...
关键词：CHALCOPYRITE silver-bearing solid waste BIOLEACHING kinetics 
Modeling heap biooxidation of arsenic-bearing gold ore被引量：6
《Journal of Central South University》2020年第5期1424-1431,共8页LI Jia-feng ZHONG Shui-ping TONG Lin-lin ZHANG Deng-chao BAO Dong-bin YANG Hong-ying 
Project(U1608254)supported by the Special Fund for the National Natural Science Foundation of China;Projects(ZJKY2017(B)KFJJ01,ZJKY2017(B)KFJJ02)supported by the Zijin Mining Group Co.,Ltd,China。
To design heap biooxidation process,it is necessary to understand its internal rules.The heap biooxidation of gold ore from Anhui province was researched in this study.The results showed that the main microorganisms i...
关键词：heap biooxidation gold ore microbial community fitting CORRELATIVITY 
Load-bearing characteristics of square footing on geogrid-reinforced sand subjected to repeated loading被引量：2
《Journal of Central South University》2020年第3期920-936,共17页ZHANG Liang-liang WANG Jia-quan Victor N.KALIAKIN TANG Yi 
Projects(41962017,51469005)supported by the National Natural Science Foundation of China;Project(2017GXNSFAA198170)supported by the Natural Science Foundation in Guangxi Province,China;Project supported by the Guangxi University of Science and Technology Innovation Team Support Plan,China;Project supported by the High Level Innovation Team and Outstanding Scholars Program of Guangxi Institutions of Higher Learning,China。
A series of dynamic model tests that were performed on a geogrid-reinforced square footing are presented.The dynamic(sinusoidal)loading was applied using a mechanical testing and simulation(MTS)electro-hydraulic servo...
关键词：repeated loading GEOGRID square footing depth of reinforcement bearing capacity 
Safe utilization of chromium-bearing vanadate residue by recovery of vanadium and chromium based on calcium circulation被引量：2
《Journal of Central South University》2018年第10期2349-2359,共11页LIU Gui-hua WU Guo-yu JIANG Hai-lang QI Tian-gui PENG Zhi-hong ZHOU Qiu-sheng LI Xiao-bin 
Project(51274242)supported by the National Natural Science Foundation of China;Project(2015CX001)supported by the Innovation-driven Plan of Central South University,China
A safe,economical treatment of hazardous chromium-bearing vanadate residue(CVR)will significantly benefit the clean production of chromate-bearing salts.This study investigated recovery of sodium vanadate and sodium c...
关键词：chromium-bearing vanadate residue NaHCO3 calcium vanadate calcium chromate sodium chromate calcium circulation 
Recovery of antimony from antimony-bearing dusts through reduction roasting process under CO–CO_2 mixture gas atmosphere after firstly oxidation roasted被引量：7
《Journal of Central South University》2018年第8期1904-1913,共10页ZHONG Da-peng LI Lei TAN Cheng 
Project(51564034)supported by the National Science Fund for Distinguished Regional Scholars,China
This paper mainly investigated the antimony recovery from antimony-bearing dusts through reduction roasting process after the dust firstly oxidation roasted.CO–CO2 mixture gas was used as reducing agent,and the antim...
关键词：antimony-bearing dust separation of arsenic and antimony antimony recovery reduction roasting waste utilization 
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