Statistical analysis of causes and countermeasures to the accidents in coal mines

来源 :煤炭学报(英文版) | 被引量 : 0次 | 上传用户:laoyet
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Statistics and analysis was made in causes, places and proportions about all kinds of disasters and accidents in coal mines of China in resent 50 years. The analysis indicates the emphasis reason that result in the accidents in coal mines are artificial cause,explosion of mash gas and coal dust, water flood, fire hazard. The accidents mostly happened on stope which is more often than other places, following by the driving work face.This not only supplies the managers with basic reference about safe administration, but also suggests the countermeasures in reducing accidents: improve the disposition of person, perfect all kinds of rules and regulations, severely investigate, analyze and deal with the accidents.
其他文献
Scientific forecasting water yield of mine is of great significance to the safety production of mine and the colligated using of water resources. The paper established the forecasting model for water yield of mine, combining neural network with the partia
Based on the principle of rock-soil mechanics, the bolt supporting technology of mine roadway were researched, it is pointed out that the roadway\'s four corner bolt, the prestressed bolt and the extensible bolt play an important role in keeping road st
Using the Jisan Coalmine\'s top-coal caving for the 3down coal seam with as-cending mining as the project background,the air-leakage characteristics of the goaf was analyzed.Through data fitting of the in situ observation,the models of gas seepage,diffu
In order to using power sound wave increase permeability of coal, rules of attenuation of sound wave in coal should be studied. In this paper, characteristic and mechanism of attenuation of sound wave in coal was researched according to acoustic theory an
Based on heterogeneous and porous medium seepage of air leakage-diffusion equation, as well as, gas and porous medium synthesis heat transferring equation, a spontaneous combustion non-steady numerical model of nitrogen injection goaf was established, whi
Based on the theory of fiber Bragg grating sensing, and using a 2 m planestress material model of the simulation experiment, the wavelength shift regulations of fi-ber Bragg gratings under rock settlement deformation conditions were got, which providedrel
The working condition of the hydraulic support in working face can be dividedinto three kinds of situations in the following: roof fall and collapse with cavity, advancingsupport and supporting. Took single support with four-pole in Iongwall face to the d
Based on the theory of random process and the characteristic of the functioning of a system component subject to a certain specific probability distribution,emulated the whole process of system production on Iongwall face was emulated,in which the methods
The detecting examples using the high density resistivity method, about the evaluation of containing water characteristic from the floor rock and the height of overburden failure, were given. It expresses that the high density resistivity method has good
When stepped coal getting technology was applied to high seam mining working face, with field observations the following aspects of working face were analyzed based on the inherent conditions of extremely soft thick seam mined by Liangbei Mine, such as th