New detecting method on the connecting fractured zone above the coal face and a case study

X Liu, D Fan, Y Tan, J Ning, S Song, H Wang… - Rock Mechanics and Rock …, 2021 - Springer
Underground coal mining activities cause redistribution of the stress and deformation fields
in surrounding rocks, resulting in different degrees of failure to the overlying strata above the …

Field and numerical investigations on the lower coal seam entry failure analysis under the remnant pillar

Z Zhang, M Deng, X Wang, W Yu, F Zhang… - Engineering Failure …, 2020 - Elsevier
Extraction of multiple seam using fully mechanized coal mining technology caused severe
deformations in the lower coal seam roadways in Zhaiyadi Coal Mine in Shanxi Province …

Study on deformation mechanism and control technology of surrounding rock during reuse of gob side entry retaining by roof pre-splitting

F He, X Xu, B Qin, L Li, K Lv, X Li - Engineering Failure Analysis, 2022 - Elsevier
In this study, we aiming at the problems of severe surrounding rock deformation and support
failure during the reuse of gob side entry retaining, we conducted field observations …

Study on stability mechanism and control techniques of surrounding rock in gob-side entry retaining with flexible formwork concrete wall

D Chen, X Wang, S Wu, F Zhang, Z Fan… - Journal of Central South …, 2023 - Springer
Gob-side entry retaining (GER) is a technique in non-pillar mining, which maintains the
original mining roadway along the edge of gob and retains it as a mining roadway for the …

Mechanical and energy characteristics of coal–rock composite sample with different height ratios: a numerical study based on particle flow code

Q Ma, Y Tan, X Liu, Z Zhao, D Fan - Environmental Earth Sciences, 2021 - Springer
To explore the differences in mechanical and energy evolution characteristics of coal–rock
composite samples with different coal–rock height ratios, uniaxial compression tests of coal …

[PDF][PDF] Determination of coal pillar width for gob‐side entry driving in isolated coal face and its control in deep soft‐broken coal seam: a case study

E Wang, S **e - Energy Science & Engineering, 2022 - Wiley Online Library
Large deformation control of surrounding rock in deep soft‐broken coal roadway has always
been a key scientific and technological problem restricting the deep coal resources …

Assessment of factors and mechanism contributing to groundwater depressurisation due to longwall mining

M Chen, C Zhang, I Canbulat, S Saydam, G Fan… - International Journal of …, 2024 - Springer
Assessment of mining impact on groundwater is one of critical considerations for longwall
extension and sustainability, however usually constrained by limited data availability …

[PDF][PDF] Segmented enlarged‐diameter borehole destressing mechanism and its influence on anchorage support system

J Yao, Y Yin, T Zhao, W Ren, Y Qiu… - Energy Science & …, 2020 - Wiley Online Library
Large‐diameter borehole destressing technology is one of the main technical measures for
the prevention and control of coal mine rock burst. In engineering practice, there is generally …

Width design of small coal pillar of gob‐side entry driving in soft rock working face and its application of Zaoquan coal mine

A Chen - Advances in Civil Engineering, 2021 - Wiley Online Library
Reasonable width of gob‐side coal pillar can reduce the waste of coal resources and is
conducive to roadway stability. According to the distribution of internal and external stress …

[HTML][HTML] Investigation of load characteristics and stress-energy evolution laws of gob-side roadways under thick and hard roofs

J Zhou, J Pan, Y **a, W Liu, T Du, J Wu - Applied Sciences, 2024 - mdpi.com
The stress environments of gob-side roadways (GSRs) are becoming increasingly complex
during deep coal mining under thick and hard roofs. This leads to strong strata behaviors …