By Zegong Liu
The foreign Mining discussion board 2010, together equipped by way of Anhui college of technological know-how and know-how (China), AGH collage of technological know-how and know-how (Poland) and Mineral and effort financial system examine Institute of the Polish Academy of Sciences (Poland), has supplied specialists worldwide with a chance and platform to replace info and ideas. objective of the discussion board used to be to advertise learn and Read more...
content material: Lectures: fireplace extinguishing mechanism and alertness study of nitrogen injection displacement / Guoshu Zhang, Shujie Yuan, Ming Deng --
examine on features and regulate know-how of mining precipitated tension shell in thick coal seam / Guangxiang Xie, Ke Yang --
Thermal threat in chinese language coal mines and measures of its keep watch over / Shujie Yuan ... [et al.] --
examine on surrounding rock keep watch over recommendations of the second one gob-side access protecting for Y-type air flow / Xinzhu Hua, Yingfu Li, Denglong Zhang --
Numerical modeling of outbursts of coal and fuel with a coupled simulator / Sheng Xue, Y.C. Wang, X. Xie --
The impression of sealing deserted components on weather conditions within the room and pillar extraction technique in copper mining / Stanisaw Nawrat, okay. Soroko, S. Gola --
Proecological expertise usage of methane from mines / Piotr Czaja, Stanisaw Nawrat, Sebastian Napieraj Numerical simulation of airflow in blind headings ventilated with freestanding lovers / Marian Branny, Bernard Nowak --
Mining in Poland : background and destiny / Antoni Tajdus, Piotr Czaja, Marek Caa --
The impact of typical risks on occupational protection in Polish collieries / Zbigniew Burtan --
3-dimensional numerical simulation of spontaneous combustion in goaf of absolutely mechanized top-coal caving longwall / Weimin Cheng ... [et al.] --
the steadiness of sentimental rock roadway helping and the research of fractal characteristic of surrounding rock crack / Xiangdong Zhang, Mingxing Zhang, Jianlai Xu --
examine on pre-splitting blasting for fuel drainage cost development in heading excavation / Hongtu Wang ... [et al.] --
research of the commercial energy index version according to rainy fiber bolstered shotcrete / Aixiang Wu ... [et al.] --
strength mechanism of sulphide dirt explosion in sublevel mining drawing outlet for prime sulphur steel ore mine / Yunzhang Rao ... [et al.] impression of pore constitution on low temperature oxidation of coal / Guanglong Dai --
examine on overburden strata deformation and protecting impact with far-distance reduce protecting layer / Biming Shi --
keep an eye on expertise of constitution coupling and engineering functions to inclined-shaft less than abundant-water stipulations / Yongping Wu ... [et al.] --
development expertise of the susceptible shaft via thick wind-blown sand seam / Ying Xu, Yong sunlight --
Forecast of rock burst depth in accordance with one-against-one SVM type tools / Yongkui Shi, Jiansheng Shao --
strength research of fabric dealt with through belt conveyor at loading aspect and in speeded up parts / Linjing Xiao, Hui sunlight, Kewen solar --
examine on moisture emendation formulation for coalbed fuel content material through oblique equipment / Zhongyou Tian --
choice of average point of flooring roadway in deep mines / Dezhong Li ... [et al.] MC simulation examine on adsorption and desorption of methane in coal seam / Xijian Li, Baiquan Lin, Hao Xu --
study on coal mine fuel sensor platforms in accordance with two-wavelength / Mengran Zhou, Haiqing Zhang, Hongwei Wu --
Numerical simulation research of coal-gas outburst in the course of excavation in coal seams / Feng Cai, Zegong Liu --
program of multi-step sectional sealing know-how in gasoline strain dimension in coal seam through a downward borehole / Qilin He, Wei Peng --
Deduction research on improvement features of mining brought about rigidity shell and mining brought on fracture in deep longwall mining / Ke Yang, Guangxiang Xie --
research on geothermal temperature distribution features and it truly is affecting components in an Huainan Mining sector / Guangquan Xu ... [et al.] --
Experimental reviews on oxidation development of coal through TG-DSC-GC know-how / Wei Peng, Qi-lin He, Xin-yu Ge examine on gasoline sensor fault prognosis in accordance with wavelet research and VLBP neural community / Junhao Wang, Xiangrui Meng --
expertise of interactive accumulating and processing mine air flow community details / Yingdi Yang, Guoshu Zhang --
layout of coal pillar with roadway using alongside goaf in absolutely mechanized top-coal caving face / Jucai Chang, Guangxiang Xie, Ke Yang --
Roadside assisting layout for gob-side access preserving and engineering perform / Yingfu Li, Xinzhu Hua --
learn on a brand new constitution of bolt-end in keeping with damaged mechanism of FRP bolt / Yingming Li, Nianjie Ma --
learn on deformation and failure legislation of aquifuge of coal seam flooring in the course of pressurized operating / Zhaoning Gao, Xiangrui Meng, Xiangqian Wang --
Experimental examine on power improvement legislation of filling physique in gob-side access preserving / Xiaoyu Lu, Liang Yuan, Xinzhu Hua rainy shotcreting dual-mode layout and dynamic zoning help mechanism and expertise for deep shafts / Yunhai Cheng, Guandong Wang, Shanxin Guo --
Experimental learn at the effect of potent confining strain on liquid permeability in coal seam / Pin Lv, Zhisheng Wang, Li Huang --
Deformation houses and keep an eye on versions of surrounding rock in deep mines with advanced geological stipulations / Wenhua Zha, Xinzhu Hua --
research of the dynamic balance of demanding and thick strata of overlying multilayer spatial constructions in deep coal mines and its program / Hong Shi, Huajun Wang --
research on dirt assortment and elimination structures in heading face in keeping with air curtain know-how / Yucheng Li, Jian Liu, Bo Liu --
research on coal samples' acoustic emission legislation in triaxial unloading compression with confining strain / Hua Nan, Yingming Wen --
research on pre-evaluation version of aid impact on mining roadways according to CBR / Xiangqian Wang ... [et al.] destiny views of the coal mining area in Poland / Zbigniew Rak, Jerzy Stasica, Zbigniew Burtan --
Injectory toning of a rock mass within the region of rebuilding an excavation on the way to hinder rocks from falling and the result of those fallings / Tadeusz Rembielak, Dariusz Chlebowski --
applied sciences used to enhance preparatory headings prior to longwall exploitation entrance in stipulations of Polish challenging coal mines / Jerzy Stasica --
comparability of tools utilized in Poland for the assessment of dewatering wells / Krzysztof Polak, Karolina Kaznowska --
Mechanised sublevel caving structures for profitable thick and steep tough coal beds / Zbigniew Rak --
Exploitation of skinny tough coal beds in Poland : strategic judgements on the threshold of the twenty first century / Artur Dyczko, Jacek Jarosz
summary: The foreign Mining discussion board 2010, together prepared by means of Anhui college of technology and expertise (China), AGH collage of technology and expertise (Poland) and Mineral and effort economic climate learn Institute of the Polish Academy of Sciences (Poland), has supplied specialists around the globe with a chance and platform to switch info and ideas. goal of the discussion board was once to advertise study and improvement of mine defense, effective exploitation thought and supply theoretical and technical aid for mine safeguard development
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Sample text
In modeling the deformation and failure of coal, coal is treated as a continuous medium and its mechanical behavior is numerically modeled as it reaches equilibrium or steady plastic flow. Application of the continuum form of the momentum principle yields the following equations of motion: V ij , j Ubi U dvi dt (1) where U is mass per unit volume of the medium; bi is body force per unit mass; and dvi / dt is material derivative of the velocity. Equation (1) is solved with a stress-strain law.
ISBN 978-0-415-59896-5 Research on surrounding rock control techniques of the second gob-side entry retaining for Y-type ventilation Xinzhu Hua Laboratory of Coal Mine Safety and Efficient Exploitation of Ministry of Education; Anhui University of Science and Technology, Huainan, Anhui Province, China Yingfu Li, Denglong Zhang Anhui University of Science and Technology, Huainan, Anhui Province, China ABSTRACT: Traditional U-type ventilation is difficult to better dilute gushing gas from the upper-corner of goaf, which causes gas accumulation in the upper-corner.
Figure 7. 5. 512(5) working face, some pressure observation has been done during the period of the first gob-side entry retaining. The experimental result shows that roof-to-floor convergence is small, surrounding rock retains basically the integrity, the width of retained roadway is about 4100 mm, the height of retained roadway is about 2800 mm, surrounding rock deformation is within the extent permitted, the demands of return air and safety mining are satisfied. It is shown that roadway-in support design, roadway-side support design and reinforcing support design is reasonable, combined support with anchor, cable, metal strip and wire netting is of preferable support integrity, bearing capability and non-deformability of filling body is very strong, which can suit surrounding rock deformation.