scholarly journals Model Experimental Study on Stress Relief by Slitting for Preventing Gas Outburst in Coal Mines.

1992 ◽  
Vol 108 (5) ◽  
pp. 351-355
Author(s):  
Sohei SHIMADA
Keyword(s):  
Experimental Study ◽  
Coal Mines ◽  
Stress Relief ◽  
Gas Outburst

Experimental Study on the Relationship between Dislocation Density and Internal Stress in Micro Electroforming Layer

2015 ◽  
Vol 645-646 ◽  
pp. 405-410 ◽  
Author(s):  
Chang Song ◽  
Li Qun Du ◽  
Tong Yang ◽  
Lei Luo ◽  
You Sheng Tao ◽  
...  
Keyword(s):  
Experimental Study ◽  
Dislocation Density ◽  
Internal Stress ◽  
Compressive Stress ◽  
Stress Relief ◽  
Ultrasonic Power ◽  
Pile Up ◽  
Ultrasonic Stress Relief ◽  
The Relationship ◽  
Dislocation Density Increase

In the micro electroforming process, the existence of electroforming layer defects caused by macro internal stress seriously limits the application and development of the micro electroforming technology. Currently, some studies have shown that ultrasonic can reduce the internal stress. But the formation process of the internal stress and the mechanism of ultrasonic stress relief in micro electroforming layer are still unclear now. In this paper, the relationship between dislocation density and internal stress under ultrasonic was studied. The results show that the ultrasonic can make the dislocation density increase and the compressive stress decrease. When the ultrasonic power is 200W, the dislocation density and the compressive stress culminate 3.8×10-15m-2 and-144.4MPa, respectively. The ultrasonic can excite the movement of dislocation proliferation, pile-up and opening, which leads to a micro plastic deformation in the crystal, and thereby releases the internal stress.

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 Experimental Study on Dynamic Evolution Mechanism during Coal and Gas Outburst

2020 ◽  
Vol 570 ◽  
pp. 042027
Author(s):  
Jiabo Geng ◽  
Wen Nie ◽  
Shun Yang ◽  
Qihang Li ◽  
Jiang Xu
Keyword(s):  
Experimental Study ◽  
Coal And Gas Outburst ◽  
Dynamic Evolution ◽  
Evolution Mechanism ◽  
Gas Outburst

Experimental study on the influence of coal oxidation on coal and gas outburst during invasion of magmatic rocks into coal seams

2019 ◽  
Vol 124 ◽  
pp. 213-222 ◽  
Author(s):  
Buzhuang Zhou ◽  
Shengqiang Yang ◽  
Chaojie Wang ◽  
Jiawen Cai ◽  
Qin Xu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Coal And Gas Outburst ◽  
Coal Oxidation ◽  
Coal Seams ◽  
Gas Outburst ◽  
Magmatic Rocks

scholarly journals Model Experimental Study on Stress Relief of Advanced Boring.

1991 ◽  
Vol 107 (13) ◽  
pp. 965-969
Author(s):  
Sohei SHIMADA
Keyword(s):  
Experimental Study ◽  
Stress Relief

Experimental study of the impact of gas adsorption on coal and gas outburst dynamic effects

2019 ◽  
Vol 128 ◽  
pp. 158-166 ◽  
Author(s):  
Jie Cao ◽  
Linchao Dai ◽  
Haitao Sun ◽  
Bo Wang ◽  
Bo Zhao ◽  
...  
Keyword(s):  
Experimental Study ◽  
Gas Adsorption ◽  
Coal And Gas Outburst ◽  
Dynamic Effects ◽  
Gas Outburst ◽  
The Impact
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