Fully Mechanized Longwall Mining in an Underground Bauxite Deposit: A Case Study

2017 ◽  
Author(s):  
Shaofeng Wang ◽  
Xibing Li
Keyword(s):  
Longwall Mining ◽  
Bauxite Deposit

scholarly journals Voussoir beam model for lower strong roof strata movement in longwall mining – Case study

2017 ◽  
Vol 9 (6) ◽  
pp. 1171-1176 ◽  
Author(s):  
Chuang Liu ◽  
Huamin Li ◽  
Hani Mitri ◽  
Dongjie Jiang ◽  
Huigui Li ◽  
...  
Keyword(s):  
Longwall Mining ◽  
Beam Model ◽  
Strata Movement ◽  
Roof Strata

In situ investigations into mining-induced hard main roof fracture in longwall mining: A case study

2019 ◽  
Vol 106 ◽  
pp. 104188 ◽  
Author(s):  
Shang Yang ◽  
Jun Wang ◽  
Xuehui Li ◽  
Jianguo Ning ◽  
Pengqi Qiu
Keyword(s):  
Longwall Mining ◽  
Main Roof

Case study on pressure-relief mining technology without advance tunneling and coal pillars in longwall mining

2020 ◽  
Vol 97 ◽  
pp. 103236 ◽  
Author(s):  
Yajun Wang ◽  
Manchao He ◽  
Jun Yang ◽  
Qi Wang ◽  
Jianning Liu ◽  
...  
Keyword(s):  
Longwall Mining ◽  
Pressure Relief ◽  
Mining Technology ◽  
Coal Pillars

scholarly journals The Effects of Backfill Mining on Strata Movement Rule and Water Inrush: A Case Study

Processes ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 66 ◽  
Author(s):  
Jian Hao ◽  
Yongkui Shi ◽  
Jiahui Lin ◽  
Xin Wang ◽  
Hongchun Xia
Keyword(s):  
Longwall Mining ◽  
Water Inrush ◽  
Vertical Stress ◽  
Strata Movement ◽  
Ground Pressure ◽  
In Situ Investigation ◽  
Floor Failure ◽  
Backfill Mining ◽  
Failure Depth

Backfill mining is widely used to control strata movement and improve the stress environment in China’s coal mines. In the present study, the effects of backfill mining on strata movement and water inrush were studied based on a case study conducted in Caozhuang Coal Mine. The in-situ investigation measured abutment pressure distribution (APD), roof floor displacement (RFD), and vertical stress in the backfill area. Results are as follows: (i) The range and peak of APD, RFD, and vertical stress in the backfill area are smaller than in traditional longwall mining with the caving method. (ii) Backfill mining could change the movement form and amplitude of overburden and improve the ground pressure environment. (iii) Floor failure depth (FFD) is much smaller in backfill mining. Backfill mining can be an effective method for floor water inrush prevention.

Control of rockburst risk in hard coal longwall mining – A case study

2013 ◽  
pp. 745-750 ◽  
Author(s):  
P Koniček ◽  
R Kukutsch ◽  
J Ptáček ◽  
K Souček ◽  
L Staš ◽  
...  
Keyword(s):  
Longwall Mining ◽  
Hard Coal
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