Fault Studies and Coal-gas-outburst Forecast in Coal Mines

2009 ◽  
Author(s):  
H. Q. Cui ◽  
X. L. Jia ◽  
Z. P. Xue ◽  
F. L. Yang
Keyword(s):  
Coal Mines ◽  
Coal Gas ◽  
Gas Outburst

Research on the Strategy of Multi Sensor Information Fusion in Coal Mine Disaster Scene

2012 ◽  
Vol 220-223 ◽  
pp. 1929-1933
Author(s):  
Yu Qing Wang ◽  
Yu Xin Qin ◽  
Zhi Guo Li ◽  
Le Deng
Keyword(s):  
Information Fusion ◽  
Coal Mine ◽  
Coal Mines ◽  
Outburst Flood ◽  
Roof Collapse ◽  
Gas Outburst ◽  
Different Types ◽  
Sensor Information

Different types of disasters occur frequently in coal mines. This paper analyzed the characteristics of different disasters, chosen the corresponding sensors to collect the information of disaster scene, and discussed the methods of multi sensor information fusion. Lastly, the multi-sensor information fusion strategies for fire, gas outburst, flood, and roof collapse were proposed in this research.

scholarly journals Research on the Disaster-Inducing Mechanism of Coal-Gas Outburst

2020 ◽  
Vol 2020 ◽  
pp. 1-12 ◽  
Author(s):  
Fengxiang Nie ◽  
Honglei Wang ◽  
Liming Qiu
Keyword(s):  
Coal Mining ◽  
In Situ Stress ◽  
Gas Pressure ◽  
Underground Coal Mining ◽  
Coal Gas ◽  
Gas Outburst ◽  
Mining Depth ◽  
Mining Coal ◽  
Occurrence Mechanism

In China, coal-gas outburst is seriously affecting safety of the coal mine. To improve the safety status of underground coal mining, this work investigated the evolution process and occurrence mechanism of coal-gas outburst under the coupling action of stress and gas. Results show that increasing either gas pressure or in-situ stress can make coal destroy and destabilize, and the contribution of gas pressure to coal failure is twice that of in-situ stress. In ultradeep coal mining, coal-gas outburst may occur even under the condition of low gas pressure due to large in-situ stress. Moreover, the larger the mining depth is, the lower the gas index is required for disaster occurrence. The results have certain guiding significance for coal energy mining and the control of coal-gas outburst in deep coal mining.

Prediction model for coal-gas outburst using the genetic projection pursuit method

2017 ◽  
Vol 16 (3) ◽  
pp. 271 ◽  
Author(s):  
Yueqiang Liang ◽  
Deyong Guo ◽  
Zhanfeng Huang ◽  
Xihui Jiang
Keyword(s):  
Prediction Model ◽  
Projection Pursuit ◽  
Coal Gas ◽  
Gas Outburst

Development of a New Type of Hydraulic Drilling Car Used in Coal Mine

2012 ◽  
Vol 522 ◽  
pp. 556-559 ◽  
Author(s):  
Ming Zhu Zhang ◽  
Yong Dai ◽  
Bo Guo
Keyword(s):  
Coal Mine ◽  
Coal Mines ◽  
Hydraulic Pressure ◽  
Directional Drilling ◽  
Coal Gas ◽  
Drilling Equipment ◽  
Underground Coal Mines ◽  
Safety Production ◽  
New Type ◽  
Structure Layout

Coal gas accident is the main threat to the safety production in coal mine,it needs a safe and efficient drilling equipment to detection and drainage in the gas area.At present,the equipments detect and drainage in underground coal mines are mainly fission rigs,which move time-consuming, and the efficiency of drilling is low.This paper introduces a new kind of full hydraulic drill car used in coal,it includes the integral design of the car, the structure layout, the drilling arm and the main parts of design ideas.The new drill carriage adopts the caterpillar vehicle structures,full hydraulic pressure drives,it can automatically change the drill rod, prevent bit-stuck device,can freely passage in the narrow roadway,arrived at the reservation of the drilling position and carries on the omni-directional drilling,it can meets various mine construction requirements, and it has a broad market prospect.

scholarly journals A model of one-dimensional coal gas outburst wave

2013 ◽  
Vol 44 (1) ◽  
pp. 68-78
Author(s):  
JiYan QIAO ◽  
Li CHEN ◽  
YanSheng DING
Keyword(s):  
One Dimensional ◽  
Coal Gas ◽  
Gas Outburst

Prediction model for coal-gas outburst using the genetic projection pursuit method

2017 ◽  
Vol 16 (3) ◽  
pp. 271 ◽  
Author(s):  
Xihui Jiang ◽  
Yueqiang Liang ◽  
Deyong Guo ◽  
Zhanfeng Huang
Keyword(s):  
Prediction Model ◽  
Projection Pursuit ◽  
Coal Gas ◽  
Gas Outburst
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