Deep borehole cores are an important material basis for understanding deep stress conditions and rockburst risk; however, the complex environment of boreholes poses many challenges to traditional core orientation techniques, thus limiting application in fields such as situ measurement. A technical method restoring original spatial attitude nonoriented geological on ground was proposed based inh...

To solve the problems of serious deformation and support difficulty deep narrow gob-side coal pillars, an optimized hydraulic roof cutting structural model for structure pillars in kilometer–deep shafts was established based on 6302 working face Xinhe mine. The influence factors such as angle height stress evolution analyzed, principle pressure relief revealed, industrial application conducted....

Robots’ visual perception is a field that is gaining increasing attention from researchers. This is partly due to emerging trends in the commercial availability of 3D scanning systems or devices that produce a high information accuracy level for a variety of applications. In the history of mining, the mortality rate of mine workers has been alarming and robots exhibit a great deal of potentials...

This article presents the results of a simulation conjugate heat transfer between cold air and warm shaft lining during airflow reverse at hard rock mine. A comparison numerical with collected experimental data was carried out. significant discrepancy two revealed, indicating that not all sources additional heating mechanisms were taken into account in simulation. Possible reasons for are discu...