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collapse model ZHANG Jia-hua(张佳华)1, ZHANG Biao(张标)2 1. Work Safety Key Lab on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines, Hunan Provincial Key Laboratory of Safe Mining... can be ignored under the condition of low calculation accuracy. Key words: 3D stochastic collapse model; pseudo-static method; response surface method; reliability index; safety factor; support......
for High Efficient Mining and Safety in Mental Mine, Ministry of Education, School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China) Abstract: The chemical resin (MP 364) was utilized to pre-reinforce the No. 4 ore body of Tangdan Copper Mine (TCM) before mining in view of the high mud content, low ore recovery rate and bad mining safety......
of Zhongguai high area in the western Junggar Basin, China LI Hu(李虎)1, 2, TANG Hong-ming(唐洪明)1, 2, QIN Qi-rong(秦启荣)1, 2, FAN Cun-hui(范存辉)1, 2,HAN Song(韩嵩)3, YANG Cang(杨仓)4, ZHONG Cheng(钟城)1, 2 1. State Key... characteristics and hydrocarbon accumulation of Carboniferous volcanic weathered crust in Zhongguai high area are studied. Volcanic rocks were formed in an island arc environment. The lithology is mainly......
was considered as the safety factor of the slope. At last, the reliability of the proposed method was verified through calculation examples of single step slope and multiple steps slope. The results indicate that the safety factor acquired by the proposed method is very close to the one acquired by the limit equilibrium method, especially close to the factor acquired by the corrected Janbu method. Key words......
, the stability of slope with broken line sliding surface was studied, and the upper bound solutions of safety factor for slope with the broken line sliding surface was obtained according to the associated flow rule and the internal and external energy conservation principle. Assuming that the landslide is in limit equilibrium state, namely the safety factor Fs=1.0, a series of c and φ combinations......
现代矿山的安全生产与管理 李政1,程伯明2,王海宁1 (1.南方冶金学院,江西赣州市 341000;2.安庆铜矿,安徽怀宁县 246131) 摘要:在分析矿山生产中事故发生原因的基础上,阐述了保证安全生产应采取的措施.文章指出,只有采取这些措施,才能减少或杜绝安全事故的发生. 关键词:矿山; 安全生产; 安全措施; Mine; Safety in production; Safety measures; [全文内容正在添加中] ......
Tuning thermal decomposition of ammonium perchlorate by nanoporous Gd2O3 for improved safety and enhanced propellant efficiencyXuezhen Zhou1,Chunyan Hu2,Xiaojun Liu1,Weifan Chen1,Qun Tang1,Yongxiu... achieved.Meanwhile,the unique delay of the first exothermal peak of AP is conducive to the safety of AP in application process.Furthermore,the dependence of decomposition heat of AP on dosage......
Tuning thermal decomposition of ammonium perchlorate by nanoporous Gd2O3 for improved safety and enhanced propellant efficiencyXuezhen Zhou1,Chunyan Hu2,Xiaojun Liu1,Weifan Chen1,Qun Tang1,Yongxiu... achieved.Meanwhile,the unique delay of the first exothermal peak of AP is conducive to the safety of AP in application process.Furthermore,the dependence of decomposition heat of AP on dosage......
Synthesis and Characterization of Large Surface Area Yttrium Oxide by Precipitation Method 龙志奇1,崔大立1,崔梅生1,张顺利1,黄小卫1 (1.Grirem Advanced Materials Corporation Limited, General Research Institute for Non-Ferrous Metals, Beijing 100088, China) Abstract:The method for preparing yttrium oxide with large specific surface area was introduced. By means of BET, SEM, TG and DTA analysis, the effects......
提高矿山全员安全素质的探讨周玉华1,魏全民1(1.湖北省黄石市湖北三鑫金铜股份有限公司)摘 要:介绍了矿山员工安全素质的现状并分析了矿山事故发生的根源,提出了提高矿山全员安全素质的重要性.从安全素质教育的对象,方法,安全宣传教育以及建立安全管理责任制等方面表述了提高矿山企业员工的安全素质的途径.关键词:矿山企业； 安全素质； 安全宣传教育......
