Authentication email has already been sent, please check your email box: and activate it as soon as possible.
You can login to My Profile and manage your email alerts.
If you haven’t received the email, please:
|
|
There are 4 papers published in subject: > since this site started. |
Results per page: |
Select Subject |
Select/Unselect all | For Selected Papers |
Saved Papers
Please enter a name for this paper to be shown in your personalized Saved Papers list
|
1. Study on the technology of reinforcing railway bridge in mining area | |||
WANG Changhao,ZHANG Wenquan | |||
Mine Engineering and Technology 19 July 2017 | |||
Show/Hide Abstract | Cite this paper︱Full-text: PDF (0 B) | |||
Abstract:Underground mining in Shitun coal mine is affecting security operations of Pangzhuang railway bridge. Based on the specific situation of railway bridge,adopted the measure that padded the bridge by building bricks and then set lifting steel beams etc. to ensure its safe operation through data analysis and subsidence deformation prediction. Which has achieved economic and social benefits and provided scientific reference for the safe mining under railway bridge with the similar condition. | |||
TO cite this article:WANG Changhao,ZHANG Wenquan. Study on the technology of reinforcing railway bridge in mining area[OL].[19 July 2017] http://en.paper.edu.cn/en_releasepaper/content/4738664 |
2. Ways of Enhancement of Power Generation Efficiency of Underground Coal Gasification -Integrated Gasification Combined Cycle Power Plants | |||
DUAN Tianhong,WANG Zuotang | |||
Mine Engineering and Technology 12 April 2011 | |||
Show/Hide Abstract | Cite this paper︱Full-text: PDF (0 B) | |||
Abstract:With the practical experience in the UCG power generation test in Huating Coal Group of China, nine ways of enhancement of efficiency of Underground Coal Gasification -Integrated Gasification Combined Cycle (UCG-IGCC) Power Plants are put forward which include selection of proper gasification agent flow rate, proper steam concentration in gasification agent, proper O2 concentration in gasification agent, the appropriate oxygen making process, appropriate overall rate of air separation system ,increase in temperature of gasifiers, control of the length of the reduction zone, increase in the inlet temperature of gas turbines, utilizing the sensible heat of the coal gas . | |||
TO cite this article:DUAN Tianhong,WANG Zuotang. Ways of Enhancement of Power Generation Efficiency of Underground Coal Gasification -Integrated Gasification Combined Cycle Power Plants[OL].[12 April 2011] http://en.paper.edu.cn/en_releasepaper/content/4419158 |
3. Adaptable Conditions Classification of Water Protection Mining Technology for Shallow Coal Seam with Thin Bedrock | |||
MA Li-qiang,ZHANG Dong-sheng,Wang An,Zhao Yongfeng | |||
Mine Engineering and Technology 13 August 2007 | |||
Show/Hide Abstract | Cite this paper︱Full-text: PDF (0 B) | |||
Abstract:Using the Universal Distinct Element Code (UDEC) numerical software, the height of fractured zones for shallow coal seam with thin bedrock were calculated and analyzed, and its predicting formulas was achieved. The overlying water body of loosen water-bearing sand for shallow coal seam with thin bedrock was divided into three types, after analyzing the experiences of mining under loosen water-bearing sand of domestic coal mine. According the lithology and its weathering degree for shallow coal seam, the protective layer thickness was determined as 10 m. Based on these, the necessary bedrock thickness of longwall coalface for shallow coal seam with thin bedrock corresponding different mining height & water yield nature of the overlying loosen water-bearing sand was confined. Combined with the present mining status, a set of new methods of adaptable conditions classification of water protection mining technology for shallow coal seam with thin bedrock was put forward. The physical simulation and industrial test of water protection mining of 51201coalface in Shangwan coal mine, Shendong coal field proved that the adaptable conditions classification of water protection mining technology is feasible in shallow coal seams with thin bedrock. | |||
TO cite this article:MA Li-qiang,ZHANG Dong-sheng,Wang An, et al. Adaptable Conditions Classification of Water Protection Mining Technology for Shallow Coal Seam with Thin Bedrock[OL].[13 August 2007] http://en.paper.edu.cn/en_releasepaper/content/14527 |
4. Reliability Analysis of Production System of Fully-Mechanized Face Based on Output Statistic | |||
Cai Qingxiang,Li Nailiang | |||
Mine Engineering and Technology 29 November 2005 | |||
Show/Hide Abstract | Cite this paper︱Full-text: PDF (0 B) | |||
Abstract:Production system of fully-mechanized face is a complicated system composed of human, machine and environment, meantime influenced by various random factors. Analyzing the reliability of system needs plentiful data by means of system faults statistic. Based on the viewpoint that shift output of fully-mechanized face is the result of various random factors’ synthetic influence, the process of how to analyze its reliability was deduced by using probability theory, symbolic statistics theory and systematic reliability theory combined with the concrete case study in this paper. And it has been proved that this method is feasible and valuable. | |||
TO cite this article:Cai Qingxiang,Li Nailiang. Reliability Analysis of Production System of Fully-Mechanized Face Based on Output Statistic[OL].[29 November 2005] http://en.paper.edu.cn/en_releasepaper/content/3829 |
Select/Unselect all | For Selected Papers |
Saved Papers
Please enter a name for this paper to be shown in your personalized Saved Papers list
|
|
Results per page: |
About Sciencepaper Online | Privacy Policy | Terms & Conditions | Contact Us
© 2003-2012 Sciencepaper Online. unless otherwise stated