Thermal hazard in Chinese coal mines and measures of its control

2010 ◽  
pp. 27-34 ◽  
Keyword(s):  
Coal Mines ◽  
Thermal Hazard ◽  
Chinese Coal

CHl'IRACTERIZATION OF SUBSIDENCE LAND RECLAIMED,BY HYDRAULIC DREDGE PUMP IN CHINESE COAL MINES

1993 ◽  
Vol 1993 (2) ◽  
pp. 839-844 ◽  
Author(s):  
Zhenqi Hu ◽  
X.Y. Chen ◽  
Q.L. Li ◽  
J.L. Hu ◽  
Y.P. Ding
Keyword(s):  
Coal Mines ◽  
Chinese Coal

An analysis of fatal gas accidents in Chinese coal mines

2014 ◽  
Vol 62 ◽  
pp. 107-113 ◽  
Author(s):  
Lei Wang ◽  
Yuan-Ping Cheng ◽  
Hong-Yong Liu
Keyword(s):  
Coal Mines ◽  
Chinese Coal

Design of Intelligent Supervision System for Production Safety in Mine Areas

2011 ◽  
Vol 219-220 ◽  
pp. 1347-1353
Author(s):  
Cheng Zhuang ◽  
Chang Qing Fu ◽  
Si Ming Zhuang
Keyword(s):  
Coal Mines ◽  
Dual Function ◽  
Monitoring And Control ◽  
Monitoring And Control System ◽  
Supervision System ◽  
Mine Area ◽  
Technical Management ◽  
Production Safety ◽  
The Status ◽  
Chinese Coal

Based on investigation into available monitoring and control system technology at home and abroad, this paper presents extensive surveys and thorough analysis of the safety supervision system being employed in Chinese coal mines. Taking a mine area as example and according to years of working experience in technical management of coal mines, the author combines the status quo of the mine area and existing problems in the supervision system for production safety in Chinese coal mines, and provides a design proposal of supervision system for production safety in coal mines, where a digitalized supervision system for production safety in coal mines serving dual-function of supervising production safety and commanding accident rescue is designed.

scholarly journals Mechanisms of Mining Seismicity under Large Scale Exploitation with Multikey Strata

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Hu He ◽  
Linming Dou ◽  
Anye Cao ◽  
Jun Fan
Keyword(s):  
Large Scale ◽  
Coal Mines ◽  
Mining Seismicity ◽  
Key Strata ◽  
Time Space ◽  
Released Energy ◽  
Chinese Coal ◽  
Mining Tremors ◽  
Limit Span ◽  
Observing Systems

The dynamic disasters are aggravating with the increase of exploitation scale and intensity in Chinese coal mines, to further understand this problem, we studied the mechanisms of mining tremors induced by key strata movement and instability under large scale exploitation. First the mechanisms were categorized into two groups that is main key strata fracture and movement as well as subkey strata instability again under adjacent mining activities. Based on the key strata theory in ground control we revealed three basic mechanisms of key strata destabilization that are rotary and sliding of low subkey strata, shear sliding of the high subkey strata, and the main key strata rupture and cave at limit span, respectively. The microseismic observing systems were applied to monitor the mining tremor events and verify the theoretical analysis in different coal mines. The characteristics of time-space evolution of tremors show that low inferior key strata causing the most, followed by the high inferior key strata and the main key strata least, however the released energy was just opposite.

Application and Development of Resin Capsules in Chinese Coal Mines

2014 ◽  
Vol 933 ◽  
pp. 55-61
Author(s):  
Bin Hu
Keyword(s):  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Coal Mines ◽  
Soft Rock ◽  
Industrial Test ◽  
Low Viscosity ◽  
Basic Parameters ◽  
Chinese Coal ◽  
Soft Rock Roadway ◽  
Rock Roadway

Development and application of resin capsules in Chinese coal mines were introduced in this paper, including the category, feature, applicability and basic parameters. The paper pointed out that unsaturated polyester resin capsules were the most widely used in Chinese coal mines. A kind of newly-developed low-viscosity resin capsule was applied to industrial test in Fengshuigou Colliery, and the results showed that the high pre-stress and intensive bolting system could effectively control the violent displacements of the surrounding rock, and it provided an effective approach for the support of soft rock roadway. Finally the future developments of resin capsules were prospected.

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