Research into impact of leaving waste rocks in the mined-out space on the geomechanical state of the rock mass surrounding the longwall face

A Smoliński, D Malashkevych, M Petlovanyi… - Energies, 2022 - mdpi.com
Backfilling technology is not always used by mining enterprises, which is conditioned by
technological and economic factors, such as the need for high mining rates and costs for the …

[HTML][HTML] Analysis of the damage mechanism of strainbursts by a global-local modeling approach

J Wang, DB Apel, A Dyczko, A Walentek… - Journal of Rock …, 2022 - Elsevier
Strainburst is the most common type of rockbursts. The research of strainburst damage
mechanisms is helpful to improve and optimize the rock support design in the burst-prone …

Research on the mechanism and control of roof deformation in gob-side entry retaining of close-distance coal seams

D Geng, L Fan, Y Du, Q Zhu, T Li, J Zhao - Engineering Failure Analysis, 2024 - Elsevier
Multiple mining operations in close-distance coal seams (CDCSs) can reduce the integrity
and bearing capacity of the surrounding rock, leading to roof fracturing and widespread …

Risk field of rock instability using microseismic monitoring data in deep mining

L Dong, H Zhu, F Yan, S Bi - Sensors, 2023 - mdpi.com
With the gradual depletion of surface resources, rock instability caused by deep high stress
and mining disturbance seriously affects safe mining. To create effective risk management, a …

Evaluation of the effects of yielding rockbolts on controlling self-initiated strainbursts: a numerical study

J Wang, DB Apel, H Xu, C Wei, K Skrzypkowski - Energies, 2022 - mdpi.com
In this paper, a 2D distinct element method (DEM) model of a deep tunnel in an
underground coal mine is built to thoroughly evaluate the effects of yielding (D-bolt and …

Evaluation of the performance of yielding rockbolts during rockbursts using numerical modeling method

J Wang, DB Apel, H Xu, C Wei - International Journal of Coal Science & …, 2022 - Springer
The assessment of yielding rockbolt performance during rockbursts with actual seismic
loading is essential for rockburst supporting designs. In this paper, two types of yielding …

Experimental Study on Mechanical Properties and Energy Evolution Law of Coal‐Rock Composite Structure under Different Interface Connection Modes

C Tian, H Sun, L Dai, R Li, B Wang, J Cao, J Wang… - …, 2022 - Wiley Online Library
The stability of the coal‐rock composite structure is of great significance to the safety
production of deep mines, and the different interface connection modes of coal and rock …

Failure mechanism and divisional differentiated control of surrounding rock in mining roadway under remaining coal pillar in close‐distance coal seam

D Chen, X Ma, Y Wu, S Xie, H Li, Z Jiang… - Energy Science & …, 2023 - Wiley Online Library
Regarding the issue of intense mining pressure appearing in the underlying gateway below
the remaining coal pillar in the close‐distance coal seam (the remaining coal pillar is …

Simulation study on the mechanical properties and failure characteristics of rocks with double holes and fractures

H Pan, N Jiang, Z Gao, X Liang… - Geomechanics and …, 2022 - koreascience.kr
With the exploitation of natural resources in China, underground resource extraction and
underground space development, as well as other engineering activities are increasing …

Prediction of strainburst risks based on the stiffness theory: Development and verification of a new rockburst indicator

J Wang, DB Apel, C Wei, H Xu - … Journal of Rock Mechanics and Mining …, 2024 - Elsevier
Strainburst is an unstable rock failure phenomenon that occurs at deep excavations'
boundaries due to the excavation-induced stress concentration and a “soft” loading …