A GIS-based method of risk assessment on no. 11 coal-floor water inrush from Ordovician limestone in Hancheng mining area, China

2018 ◽  
Vol 11 (22) ◽  
Author(s):  
Gelian Dai ◽  
Xiaoyuan Xue ◽  
Ke Xu ◽  
Lei Dong ◽  
Chao Niu
Keyword(s):  
Risk Assessment ◽  
Water Inrush ◽  
Mining Area ◽  
Ordovician Limestone ◽  
Floor Water Inrush

Risk assessment of floor water inrush in coal mines based on MFIM-TOPSIS variable weight model

2021 ◽  
Vol 28 (8) ◽  
pp. 2360-2374
Author(s):  
Guan-da Zhang ◽  
Yi-guo Xue ◽  
Cheng-hao Bai ◽  
Mao-xin Su ◽  
Kai Zhang ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Water Inrush ◽  
Coal Mines ◽  
Variable Weight ◽  
Floor Water Inrush ◽  
Weight Model

Relative Impermeability of the Ordovician Top and Risk Assessment of Water Inrush from Coal Floor in Baode Coalfield

2013 ◽  
Vol 671-674 ◽  
pp. 85-89
Author(s):  
Wei Jie Zhang ◽  
Shu Cai Li ◽  
Jiu Chuan Wei ◽  
Qing Song Zhang ◽  
Ren Tai Liu ◽  
...  
Keyword(s):  
Risk Assessment ◽  
High Pressure ◽  
Water Inrush ◽  
Karst Aquifer ◽  
Wash Water ◽  
Water Quantity ◽  
Karst Water ◽  
Coal Seams ◽  
Filling Degree ◽  
Floor Water Inrush

In order to study the safety mining of the deep buried coal seams being threatened by high pressure karst water, relative impermeability of the Ordovician top is demonstrated through studying lithology，filling degree of the karst fissures as well as wash water quantity, in the Baode mine field. Furthermore, the main influencing factors on impermeability of coal seam floor are analyzed, and divisional risk assessment of floor water-inrush from the Ordovician karst aquifer is performed. Overall，by considering the relative impermeable strata in the Ordovician top, the accuracy of risk assessment on coal floor water-inrush can be improved.

Evaluation of Coal Floor Water Inrush Risk with Five-Figure and Double-Coefficient Method

2013 ◽  
Vol 706-708 ◽  
pp. 492-495
Author(s):  
Jiu Chuan Wei ◽  
Dao Lei Xie ◽  
Hui Yong Yin ◽  
Jian Bin Guo ◽  
Lin Lin Wang ◽  
...  
Keyword(s):  
Layer Thickness ◽  
Water Inrush ◽  
Mining Area ◽  
Layer Depth ◽  
Effective Protection ◽  
Floor Water Inrush ◽  
Protection Layer ◽  
Inrush Water ◽  
Coefficient Method ◽  
Safe Mining

The coal seam floor water inrush risk assessment is the basis and foundation of inrush water disaster prevention[1-, this paper uses five figure double coefficient method evaluating NO.16 coalseam floor water inrush risk of Xin'an Coal Mine. Contour figure of the destroyed floor protection layer depth, the floor protection layer thickness, the head above seam floor, the effective protection layer thickness, and evaluation figure of mining above aquifer which can guide coal production were drawn to given the security zone within mining area and ensure safe mining.

Using random forest for the risk assessment of coal-floor water inrush in Panjiayao Coal Mine, northern China

2018 ◽  
Vol 26 (7) ◽  
pp. 2327-2340 ◽  
Author(s):  
Dekang Zhao ◽  
Qiang Wu ◽  
Fangpeng Cui ◽  
Hua Xu ◽  
Yifan Zeng ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Random Forest ◽  
Coal Mine ◽  
Water Inrush ◽  
Northern China ◽  
Floor Water Inrush
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