Monitoring of loads in arch support with wire strain gauge
Journal Title: Mining – Informatics, Automation and Electrical Engineering - Year 2019, Vol 537, Issue 1
Abstract
A concept of measuring the load and geometry of a roadway support with the use of vibrating wire strain gauges and draw-wire sensors is presented. Laboratory and in-situ tests of complete frames of arch supports under load were carried out within the INESI project. The deformations recorded by the vibrating wire strain gauges are similar to those recorded by the strain gauges. FEM strength calculations (which were similar to the results from the stand tests) were also presented.
Authors and Affiliations
Mariusz Woszczyński, Jarosław Tokarczyk, Krzysztof Mazurek, Andrzej Pytlik
Keywords
Related Articles
- EP ID EP598308
- DOI 10.7494/miag.2019.1.537.48
- Views 99
- Downloads 0
Investigation of correlation between physical properties and microstructure geometrical parameters of Cr-Cu composite material used for vacuum arcing contacts
A new microstructure quality index is proposed, suitable for Cr-Cu system metal-matrix materials used for arc-suppressing electrical contacts of vacuum switches for high voltages (10-36 кV) and high currents (20-100 кА)....
Assessing sensitivity and stability of IEC spark test apparatus as an important parameter in testing electronic devices
The article features an assessment of the sensitivity and stability of the IEC spark gap properties as an important parameter in testing electrical and electronic systems and devices. The assessed IEC spark gap, owned by...
Devices for measuring ventilation parameters and methane concentration as well as concept of complex monitoring of methane hazard in longwall area
This paper discusses the issue of the methane hazard occurring in the longwall areas of hard coal deep mines along with ways of overcoming this hazard. The authors describe devices for measuring the parameters of the und...
Tests of loading efficiency of worm-type cutting drums in longitudinally inclined longwall working
This article presents the execution and results of tests of the loading efficiency of worm-type cutting drums as a function of the slope of a longwall working. The tests were carried out at various angles of longitudinal...
Development and analysis of kinematics of working unit of self-propelled drilling machine
Self-propelled drilling rigs are widely used in the underground mining. Their main task is to drill holes in the rocks where explosive charges are to be placed. An important feature of this type of machine is its ability...