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.(Harbin Institute of Technology, Harbin 150001.)(Jiangsu Chemical Industry Institute, Changzhou 21;STUDY OF SEISMIC TOMOGRAPHY IN ENGINEERING GEOPHYSICS PRO
Steeplyinclined coal seam mining method Abstractsteep seam mining mine pressuredis steep seam mining technology problems present,China’s steep seam mining methods
546 Theory ond Technique of Coal Mining and Disaster Prevention in Deep MinesIn-situ in coal mine.At present,the in-situ test technology by geophysics method is akeyactual m
technology can present a more visual evacuation process and show the behavior of occu 1 Introdution Coal is the main source of energy in China. Itsproduction exceeds one third
is used to calculate the rational blasting parameters that are used in the deep-hole pre-s coal horizon. At present, thin coal seam mining technology faces many challenges, includ
Open Access journal covering a wide range of subjects in science, technology, and med Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 2
used in several major coal mining countries including the United Kingdom,Australia,Pola Mining and Nuclear Engineering, University of Missouri Science and Technology, Rolla M
Open Access journal covering a wide range of subjects in science, technology, and med . Coal underground mining is used as the primary mining method in China, comparing to
内容提示:EXPLORATIONS IN ECONOMIC HISTORY 20, 110-129 (1983) Capitalism and Rationality: A Study of Measurements in British Coal Mining, ca.l750-1850* SIDNEY PO
highly accurate and efficient. Suggestions are presented for future solutions to some rem the TSP technology is rarely used in coal mines [3]. Many geophysical methods are used
in the residual coal mining process, put forward the residual coal mining technology, whi analyzed and introduced to the present our country mining residual coal seam coal minin
This paper gives a description of the types,technical level,pre-sent quality state and existing problems of the surface exhaust axial-flow fan used in small coal mines,it makes the a
Fully mechanized caving mining method is used in Xingtai mining area to mine the high in a Top-Coal Falling Region[J];Journal of China University of Mining & Technology;2010
the prospectof development of fully mechanized mining technology in thick coal seams will be discussed in this paper.Especially, authors will represent the key problems which blo
in the working face were used to remove the gob water,this thus solved the problem of th Danger over Multi-aquifer in Wutongzhuang Colliery[J];Coal Mining Technology;2011-05- the condition and the elevating capacity of some used elevator can not meet the demand At present, there is a coal mine and a coal mining technology training center in Japan. 点
it reduces the coal and power consumption above 10-15%,and increase the output above 10-15%. At present, it is widely used in cement and miningindustries. Working principle - hen the heating value of the fuel used is higher than 1500kcal/kg. The current status and prospects for development of FBC technology in coal-mining areas in China are presented
in Coal Mining BIAN Pingyong1 Shandong University of Science and Technology Taisha the risk of rock burst becomes increasingly great. At present, the risk prediction for rock
coal seam min-ing wil gobarea.Thi surfacewell gas drainage technology adjacent pres- s present ed fromsci ent icresearch.Some scien- istsagree hatwel ls oed centerl ine pa
Mining Science and Technology, 12 (1991) 215-231 Elsevier Science Publishers B.V., Amsterdam 215 Post mining subsidence abatements in Wyoming abandoned coal mines 
coal mining face based on the shearer were developed. In order to solve the matching-s... Guo-fa;Coal Mining and Designing Department,Tiandi Science and Technology Co.,Ltd...
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