期刊：
Electronic Journal of Geotechnical Engineering,2014年19(M):2829-2838 ISSN：1089-3032
作者机构：
[Feng, Sheng-yang; Wei, Li-min; Qun, He] School of Civil Engineering, Central South University, Changsha 410075, China;[Feng, Sheng-yang; Jiang, Fu-liang] School of Environmental Protection and Safety Engineering, University of South China, Hengyang 421000, China
作者机构：
[贺永强; 杨仕教] School of Nuclear Resources Engineering, University of South China, Hengyang , China;[陈荣] School of Environment and Safety Engineering, University of South China, Hengyang , China;[罗辉] Geotechnical Engineering Research Center, Hunan Yanneng Design Studies Ltd., Hengyang , China
通讯机构：
School of Nuclear Resources Engineering, University of South China, Hengyang, China
作者机构：
[Yali-Zhao; Nanbin-Fan] School of Environmental Protection and Safety Engineering, University of South China Hengyang, China;Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy University of South China Hengyang, China;[Yongjun-Ye] School of Environmental Protection and Safety Engineering, University of South China Hengyang, China ;[Yongjun-Ye] Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy University of South China Hengyang, China
会议名称：
7th International Symposium on Radiation Safety and Detection Technology(第七届国际声辐射安全与检测技术研讨会)(ISORD-7)
会议时间：
2013-7-15
会议地点：
三亚
会议主办单位：
中国原子能科学研究院
会议论文集名称：
7th International Symposium on Radiation Safety and Detection Technology(第七届国际声辐射安全与检测技术研讨会)(ISORD-7)论文集
摘要：
The process of radon exhalation of uranium ore-rock in the course of mine ventilation is complicated, dynamic and nonlinear.The calculation basis of radon exhalation is the equivalent radon exhalation rate, which contributes to reasonably determine the ventilation air quantity in uranium mines, avoiding unnecessary cost.
作者机构：
[夏良树; 黄欣] School of Nuclear Science and Technology, University of South China, Hengyang 421001, China;[吕俊文] School of Environment Protection and Safety Engineering, University of South China, Hengyang 421001, China;[曹存存; 陈伟] School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
通讯机构：
School of Nuclear Science and Technology, University of South China, China
摘要：
The length of the pre-splitting crack is an important parameter in underground mine deep-hole blasting, and experience and engineering analogy methods are used commonly, but they seldom have scientific and theoretical basis. In this paper, the mature numerical analysis software - ANSYS/LS-DYNA was adopted, the different lengths of pre-splitting crack were simulated. In the filling body, the corresponding maximum blasting vibration velocity and stress are obtained by numerical simulation when the maximum initiation section blasted. The corresponding regression formulas are obtained by using the least square method, and the optimal length of the pre-splitting crack is 12 m through the calculation. Proved by practice, this method to get the length of the pre-splitting crack is scientific and effective, can be extended in other similar blasting engineering.
作者机构：
[XIE Chao; PENG Tiefeng; CHEN Kun; XU Longjun; ZHAO Jing] State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China;[CHEN Kun] College of Safety Engineering, Chongqing University of Science and Technology, Chongqing, 400042, China;[PENG Tiefeng] School of Chemical Engineering, University of Queensland, Brisbane, QLD, 4072, Australia;[XIE Chao] School of Environmental Protection and Safety Engineering, University of South China, Hengyang, 421001, China
通讯机构：
[Longjun Xu] S;State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, China
摘要：
Manganese was extracted from leaching low-grade manganese ore in sulfuric acid medium. The effects of granule diameter, leaching time, liquid/solid ratio (V/W) and the concentration of sulfuric acid were investigated through orthogonal and single factor experiments. The experimental results showed that the optimal leaching conditions are, size of 0.054mm, 120 minutes of reaction time, 3(V/W) of liquid/solid ratio and 30% of the concentration of sulfuric acid (g/g). Under those conditions, the leaching efficiency is 96.73%. The kinetics of the leaching process is in accordance with the characteristics of fractal reaction.
作者机构：
[叶勇军; 李峰; 丁德馨] Key Discipline Lab. for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, China;[叶勇军; 钟永明] School of Environment Protection and Safety Engineering, University of South China, Hengyang 421001, China
通讯机构：
Key Discipline Lab. for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, China
作者机构：
[ZHAO Jing; XU Longjun] State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China;[XIE Chao] School of Environmental Protection and Safety Engineering, University of South China, Hengyang, 421001, China
通讯机构：
[Longjun Xu] S;State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, China
关键词：
chemical manganese dioxide;low-grade rhodochrosite;thermal decomposition
作者机构：
[Jialin-Liu; Kui-Zhou] School of Environmental Protection and Safety Engineering, University of South China Hengyang, China;Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy.University of South China Hengyang, China;[Yongjun-Ye] School of Environmental Protection and Safety Engineering, University of South China Hengyang, China ;[Yongjun-Ye] Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy.University of South China Hengyang, China
会议名称：
7th International Symposium on Radiation Safety and Detection Technology(第七届国际声辐射安全与检测技术研讨会)(ISORD-7)
会议时间：
2013-7-15
会议地点：
三亚
会议主办单位：
中国原子能科学研究院
会议论文集名称：
7th International Symposium on Radiation Safety and Detection Technology(第七届国际声辐射安全与检测技术研讨会)(ISORD-7)论文集
关键词：
uranium mines;ventilation system;safety and reliability;evaluation system;fuzzy comprehensive evaluation
摘要：
Mechanical ventilation is one effective way which can reduce radon and remove radon in uranium mine.According to the actual situation of underground uranium mine ventilation system, the article reasonably built an evaluation index system from the perspective of safety and reliability and established a security and reliability comprehensive assessment system of a uranium mine underground ventilation based on fuzzy comprehensive evaluation theory.
期刊：
Information Technology Journal,2013年12(21):6475-6480 ISSN：1812-5638
通讯作者：
Zhao, Y.
作者机构：
[Zhao, Yuhong; Sheng, Yifa] School of Electric Engineering, University of South China, Hengyang, Hunan, China;[Lei, Lin] Institute of Environmental Protection and Safety Engineering, University of South China, Hengyang, Hunan, China
通讯机构：
[Zhao, Y.] S;School of Electric Engineering, University of South China, Hengyang, Hunan, China
会议论文集名称：
2012 International Symposium on Safety Science and Technology (2012安全科学与技术国际会议)论文集
关键词：
bridge erecting machine tipping;fault tree analysis;minimal path set;structural importance;countermeasure
摘要：
Bridge erecting machine has been widely used nowadays with its efficiency, while just as a coin has two sides, it also brings problem. If a rollover happens, it will lead to equipment damage, casualties or other disastrous accidents. How could technicians take measures to prevent accidents as efficiently as possible? Question remains unsaved. Based on the analysis of “10.26” bridge erecting machine tipping accident, this paper gives a qualitative analysis on the accident by using fault tree analysis. Firstly, fault tree diagram for the bridge erecting machine tipping, namely the causal and generalization relation between events is formulated. All the basic events that influence the way and the degree of the accident are identified, and these can be ascribed to the following three aspects: manufacturing defect, personnel operating error and management oversight. In terms of management oversight, the responsibility of construction unit, safety supervision department and supervision unit are of great importance. Secondly, combining the minimal path set with the structure importance, we conduct a qualitative analysis on the personnel casualties resulted from the accident, thus seek critical approaches to accident prevention. Finally corresponding safety control measures are put forward. It is noteworthy that the approach can be applied in the similar accidents entirely.
