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 …
tests on treble-pillar specimens were conducted under soft and stiff loading conditions …
Experimental and numerical investigation on the bearing and failure mechanism of multiple pillars under overburden
To reveal the mechanical response of a multi-pillar supporting system under external loads,
compressive tests were carried out on single-pillar and double-pillar specimens. The digital …
compressive tests were carried out on single-pillar and double-pillar specimens. The digital …
Dynamic response of pillar workings induced by sudden pillar recovery
When residual pillars are extracted in a short time in room and pillar mining, the load
transferred from the removed pillar acts on neighbouring pillar workings in a dynamic …
transferred from the removed pillar acts on neighbouring pillar workings in a dynamic …
Failure propagation of pillars and roof in a room and pillar mine induced by longwall mining in the lower seam
Underground mining using the room and pillar method leaves pillars to support the overlying
strata. When longwall mining is used to extract a lower coal seam beneath the room and …
strata. When longwall mining is used to extract a lower coal seam beneath the room and …
Buckling failures of reserved thin pillars under the combined action of in-plane and lateral hydrostatic compressive forces
Z Huang, X Dai, L Dong - Computers and Geotechnics, 2017 - Elsevier
The reasons that pillars with small width-to-height ratios fail remain unclear. This study
established a mechanical model for the buckling failure of a thin pillar subjected to …
established a mechanical model for the buckling failure of a thin pillar subjected to …
Risk assessment for the cascading failure of underground pillar sections considering interaction between pillars
The cascading failure of underground pillar sections poses a risk to miners and surface
structures. Assessing the risk of underground mining panels contributes to the prevention …
structures. Assessing the risk of underground mining panels contributes to the prevention …
[HTML][HTML] Unstable pillar failure under soft loading condition
Pillar rockburst is an unstable pillar failure and one of the most hazardous problems in the
underground mining engineering of deep hard-rock mines. In order to study the mechanism …
underground mining engineering of deep hard-rock mines. In order to study the mechanism …
[HTML][HTML] Large-scale laboratory investigation of pillar-support interaction
Underground mine pillars provide natural stability to the mine area, allowing safe operations
for workers and machinery. Extensive prior research has been conducted to understand …
for workers and machinery. Extensive prior research has been conducted to understand …
Numerical study of failure mechanism of serial and parallel rock pillars
Using a numerical modelling code, rock failure process analysis, 2D, the progressive failure
process and associated acoustic emission behaviour of serial and parallel rock samples …
process and associated acoustic emission behaviour of serial and parallel rock samples …
Yield pillar application under strong roof and strong floor condition-a case study
P Tsang, SS Peng, SM Hsiung - ARMA US Rock Mechanics …, 1989 - onepetro.org
ABSTRACT ABSTRACT: The mechanisms and functions of yield pillar are analyzed by
employing finite element method that takes time dependent and plastic failure of rock into …
employing finite element method that takes time dependent and plastic failure of rock into …