Results 71 to 80 of about 4,148 (210)

Apport de la méthode microsismique à la compréhension de l'impact de l'ennoyage sur la stabilité des ouvrages miniers abandonnées [PDF]

, 2004
National audienceL'objectif de la présente recherche est de déterminer, à partir des expérimentations in situ, l'apport de la méthode microsismique dans l'identification et la compréhension des mécanismes de déformation des ouvrages miniers sous l ...
Senfaute, Gloria, Wassermann, Jérôme
core   +1 more source

Study on the Law of Multi‐Fracture Propagation in Different Fracturing Fluid Viscosity

Energy Science &Engineering, Volume 14, Issue 3, Page 1339-1352, March 2026.
Samples and equipment Sample preparation Test equipment Analysis of test results Fracture propagation morphology Influence of fracturing fluid viscosity on crack initiation time/(fracture initiation pressure) Evolution law of injection pressure Cumulative relation curve of pressure–time–acoustic ABSTRACT Using the TCHFSM‐I large‐scale accurate triaxial
Zhixing Zhang, Xiang Fu, Yuedong Liu, Xiaoqiang Zhang, Yulong Jiang   +4 more
wiley   +1 more source

Mechanism of rigid overlaying of carboniferous strata failure in face mining in the case of a multiseams deposit [PDF]

, 2013
The technique of assessing the failure of rigid overlying strata is applicable to deep mining with thick coal seams (a thickness of more than 1 m in the Ostrava–Karvina Coalfield), and in one case to longwall mining with controlled caving.
Doležalová, Hana, Jiránková, Eva, Kajzar, Vlastimil, Staš, Lubomír   +3 more
core   +1 more source

Study on the Influence of Coal Stress Damage on Impact Tendency Under Cyclic Loading and Unloading Effects

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
This article aims to explore the response characteristics of coal impact tendency to cyclic load. Through the mechanical damage test of coal sample under cyclic load, the deformation and damage of the coal sample under different cyclic stress, cyclic rate, and cyclic times were analyzed.
Wulin Lei, Hailiang Yu, Dingding Zhang, Yuanjia Shang, Changxiong Shao, Xiaoqian Yuchi, Binde Qin, Pan Shu, Siyang Wang, Junren Gao, Jingshou Liu   +10 more
wiley   +1 more source

Coupled CFD-FEM analysis of the damage causes of the retention bunker: a case study at hard coal mine

Scientific Reports
Underground coal storage bunkers serve as crucial infrastructural components in the coal mining industry, providing secure and accessible locations for the storage of mined coal.
Tomasz Janoszek, Marek Rotkegel
doaj   +1 more source

Research Progress and Typical Cases of Deep Mines Backfill Technology in China

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
With the increasing depletion of shallow mineral resources and the growing demand for metals, deep mining has become a strategic focus for China. However, deep mining operations face a series of complex challenges, including high ground stress, elevated geothermal gradients, and severe rockburst hazards.
Shuai Li, Zhenyu Dan, Haoxuan Yu, Zhenzhong Xiang, Junyu Chen, Luyu Wang   +5 more
wiley   +1 more source

Experimental Simulation Investigation on Slab Buckling Rockburst in Deep Tunnel

Applied Sciences
The relationship between slabbing failure and rockburst has become a hot issue in rockburst research. In this paper, the experimental system of impact rockburst is used to conduct a simulation experiment of rockburst induced by slab failure on ...
Chao Ren, Xiaoming Sun, Manchao He, Dongqiao Liu   +3 more
doaj   +1 more source

Real-time Microseismic Monitoring : Automatic Wave Processing and Multilayered Velocity Model for Accurate Event Location [PDF]

, 1994
International audienceMine-induced seismicity is a well-known phenomena wherever mining activities take place at great depths. At Provence colliery, France, longwall mining at 1100 meters deep induces numerous, daily tremors, triggered by the caving ...
Bigarre, Pascal, Josien, Jean-Pierre, Senfaute, Gloria   +2 more
core   +1 more source

The extreme mobility of debris avalanches: A new model of transport mechanism [PDF]

, 2015
International audienceLarge rockslide-debris avalanches, resulting from flank collapses that shape volcanoes and mountains on Earth and other object of the solar system, are rapid and dangerous gravity-driven granular flows that travel abnormal distances.
Davies T. R. H., Davies T. R. H., Heim A., Hsü K. J., Irme B., Johnson B., Orford J. D., Rasband W. S., Rochet L., Shaller P. J., Turcotte D. L., Watson R. A.   +11 more
core   +2 more sources

Binary Segmentation Algorithm Selection and Hyperparameters Optimization of Blasted Rock Image

Journal of Engineering, Volume 2026, Issue 1, 2026.
Due to the severe noise and complex texture of blasted rock, selecting an appropriate binary segmentation algorithm is essential. This study evaluates nine common local thresholding methods for segmenting blasted rock images, with a focus on hyperparameter optimization of the highly adaptable Phansalkar algorithm.
Shihao Zhang, Qinpeng Guo, Shijiao Yang, Himadri Majumder   +3 more
wiley   +1 more source