Assessing the stability of high-level pillars in deeply-buried metal mines stabilized using cemented backfill

K Xia, C Chen, X Liu, X Liu, J Yuan, S Dang - International Journal of Rock …, 2023 - Elsevier
Obtaining a reasonable assessment of the stability of high-level pillars stabilized using
cemented backfill is particularly important when designing deeply-buried metal mines. This …

Dynamic stability evaluation of underground cavern sidewalls against flexural toppling considering excavation-induced damage

A Li, F Dai, Y Liu, H Du, R Jiang - Tunnelling and Underground Space …, 2021 - Elsevier
Flexural toppling is a crucial engineering issue for high sidewalls of underground
powerhouse caverns in low stress regions, when a small angle between cavern axis and …

Coordinated deformation mechanism of the top coal and filling body of gob-side entry retaining in a fully mechanized caving face

D Kong, S Pu, Z Cheng, G Wu, Y Liu - International Journal of …, 2021 - ascelibrary.org
When gob-side entry retaining technology is used in a fully mechanized caving face, the
load-bearing structure of the filling body and top coal often cannot meet the series of …

Stability analysis of coal face based on coal face-support-roof system in steeply inclined coal seam

D Kong, Y Xiong, Z Cheng, N Wang… - Geomechanics and …, 2021 - koreascience.kr
Rib spalling is a major issue affecting the safety of steeply inclined coal seam. And the
failure coal face and support system can be affected with each other to generate a vicious …

Identification of goaf instability under blasting disturbance using microseismic monitoring technology

H Jia, B Yan, Z Yang, E Yilmaz - … and Geophysics for Geo-Energy and Geo …, 2023 - Springer
Micro-seismic (MS) technique can be used to appreciate rock failure process and severity of
damage by quantifying micro-earthquakes in terms of time, location, grade, and energy …

Experimental investigation of damage evolution and failure criterion on hollow cylindrical rock samples with different bore diameters

J Wang, D Ma, Z Li, Y Huang, F Du - Engineering Fracture Mechanics, 2022 - Elsevier
The roadway direction is often parallel to the direction of the maximum principal stress for
the structure arrangement of underground roadway. To study the instability mechanism of …

Stability analysis of rib pillars in highwall mining under dynamic and static loads in open-pit coal mine

H Wu, Y Chen, H Lv, Q Xie, Y Chen, J Gu - International Journal of Coal …, 2022 - Springer
The retained coal in the end slope of an open-pit mine can be mined by the highwall mining
techniques. However, the instability mechanism of the reserved rib pillar under dynamic …

[HTML][HTML] Numerical and theoretical study of load transfer behavior during cascading pillar failure

H Dong, W Zhu, L Niu, C Hou, X Liu - Journal of Rock Mechanics and …, 2023 - Elsevier
To further study the load transfer mechanism of roof–multi-pillar–floor system during
cascading pillar failure (CPF), numerical simulation and theoretical analysis were carried out …

Application of extension theory based on improved entropy weight method to rock slope analysis in cold regions

C Qiao, Y Wang, C Li, B Yan - Geotechnical and geological engineering, 2021 - Springer
In view of the problems existing in the evaluation process of slope stability in cold regions,
the improved entropy weight method and extension theory are used to evaluate the slope …

Load transfer behavior during cascading pillar failure: an experimental study

H Dong, W Zhu, C Hou, X Liu - Rock Mechanics and Rock Engineering, 2022 - Springer
In order to reveal the load transfer mechanism during cascading pillar failure, compressive
tests on treble-pillar specimens were conducted under soft and stiff loading conditions …