27 Result(s)
within
English
Earth Sciences
Mechanical Engineering
Jia **g
Article
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Article
Chloride transport and its sensitivities to different boundary conditions in reclaimed soil solutions filled with fly ash
Chloride ion transport in reclaimed soil solutions filled with fly ash (FA) was investigated by measuring the hydraulic parameters (i.e. water retention curves and hydraulic conductivity) of three substrates, ...
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Experimental analysis on bolt interference during advanced water detection with the mine transient electromagnetic method
During advanced water detection using the transient electromagnetic method, the exploration effect for water-rich area is often poor due to the interference of bolts that are distributed in different positions...
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Gas pipeline explosion resistance technology
Based on the features and requirements of gas drainage system, an optimized explosion resistance technology is done after a comprehensive analysis and research about the triple IR (Infrared Ray) flame detectio...
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Minimum secure speed of fully mechanized coal face based on critical temperature of coal spontaneous combustion
The critical temperature theory of spontaneous combustion of coal and the numerical simulation method are used to explore the minimum secure speed of fully mechanized coal face to prevent the spontaneous combu...
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Evaluation of coal pillar loads during longwall extraction using the numerical method and its application
It is very difficult to reasonably evaluate the loads acting on coal pillars in longwall panels during the planning of a new pillar system. The application of empirical equations is a common practice in calcul...
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Research on the adjustment model of ventilation characteristic parameters based on integrated method of circuit and path
Ventilation characteristic parameters are the base of ventilation network solution; however, they are apt to be affected by operating errors, reading errors, airflow stability, and other factors, and it is dif...
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Water quality variation of mining-subsidence lake during the initial stage: cases study of Zhangji and Guqiao Mines
Four quarters’ water collecting and monitoring samples were done in the mining subsidence lakes of different water storing periods (2 to 7 years), considering the water storing time and pollution sources state...
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Features of gas geology and its main controlling factors in **xiang mining area, Jiangxi Province
**xiang Mining Area in Jiangxi Province is one of the major coal-producing areas and is prone to serious coal and gas outburst, therefore, it is of significance to research on gas geological features and its...
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Electromagnetic drive system of robotic fish
With the aim to apply the electric fish into practice to assist coal mine water disaster life detection and rescue work, based on the analysis on swing propulsion movements of tail fin, this paper integrates t...
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Rockburst hazard assessment based on electromagnetic emission in **ngfu Mine
In order to research the danger caused by the rockburst, the electromagnetic emission (EME) in the coal rock was monitored and analyzed. The higher the stress in the coal is, the stronger the deformation and t...
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Application of dual structure theory on motivating safe behavior of coal mine staff
Based on behavior science and direct causes analysis of serious accidents in Chinese coal mines in recent 5 years, a conclusion that unsafe behaviors of coal mine staff were the direct causes of these serious ...
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Analytic computation on the forcible thawing temperature field formed by a single heat transfer pipe with unsteady outer surface temperature
A comprehensive and systematic research on the forcible thawing temperature field formed by a single heat transfer pipe with unsteady outer surface temperature was carried out by analytic computation according...
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Experimental study and theoretical analysis on the effect of electric field on gas explosion and its propagation
The effect of the electric field with different intensity on explosion wave pressure and flame propagation velocity of gas explosion was experimentally studied, and the effect of electric field on gas explosio...
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Application research on three-dimensional virtual mine in the framework of internet of things
Based on the information system characteristics of mine, proposed network architecture design of the mine property. And in this framework based on the design of three-dimensional virtual mine described the app...
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Spatial data modeling for coalfield geological environment
Presented a study on the design and implementation of spatial data modeling and application in the spatial data organization and management of a coalfield geological environment database. Based on analysis of ...
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Fire risk evaluation research on fully mechanized coalface based on the uncertainty measure theory
A relatively perfect coalmine fire risk-evaluating and order-arranging model that includes sixteen influential factors was established according to the statistical information of the fully mechanized coalface ...
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Research on design system of band conveyer driven by linear friction
The band conveyer driven by linear friction is a new device. It can reduce drive size and conveyor belt tensity, and increase delivery capacity. It has feasibility and usability particularly in altering the or...
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Nonlinear elastic-perfect plastic constitutive model of soil-structure interface under high stress
Briefly introduced the simple shear apparatus under high stress that was developed from RMT. A series simple shear tests under high stress show that the relation curve between shear stress and tangential displ...
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Practical application of pressure regulating technology for fire district in Meiyukou Coal Mine
Based on the simulated laboratory experiment of pressure balance for fire extinguishing, the pressure regulating technology was summarized for the fire district in Meiyukou Coal Mine. The technology includes t...
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Airtight negative pressure dust-control technology and application of transpersite in the coal conveyer belt system
Presented a new coal dust control program that was airtight negative pressure dust-control technology at the transpersite, combining with analysis with the movement of air currents and numerical simulation of ...
