Advanced searches left 3/3

Mines - Astrophysics Data System

Summarized by Plex Scholar
Last Updated: 18 September 2022

* If you want to update the article please login/register

Toward autonomous mining: design and development of an unmanned electric shovel via point cloud-based optimal trajectory planning

Initially, the point cloud of the material surface is collected and rebuilt by a polynomial response surface technique. The experimental results show that the newly developed surface reconstruction kit can accurately reflect the material surface. The PTP trajectory planning process quickly obtains a good mining trajectory with high fill factor and mining efficiency on the basis of a recovered surface. The new method, relative to the common excavation trajectory planning methods, proves more accurate in terms of mining time and electricity usage, as well as providing high-quality digs of the UES in a realistic mining environment.

Source link: https://ui.adsabs.harvard.edu/abs/2022FrME...17...30Z/abstract


On the applicability of the RETAS model for forecasting aftershock probability in underground mines (Kiirunavaara Mine, Sweden)

The key shocks and some of the aftermaths can cause damage in the rock mass, with a string of even minor seismic events that can put a threat to the mining operation or personnel in deep underground mines. In this research, Stochastic modelling was used to determine the temporal progression of aftershock occurrence probability during a M1. 85 aftershock sequence in Kiirunavaara Mine, Sweden. The Aftershock Sequence model was chosen for estimation of the incidence of the aftershock probability. The model was applied serially to data samples covering continuous lengths of time, beginning with the first 2 h after the main event and increasing them by 2 h until the period covered the entire 72-h sequence. Monte Carlo simulation revealed the best-fit RETAS version for every sample, as well as the likelihood of a M u2265 0. 5 aftershock for every next 2 hours.

Source link: https://ui.adsabs.harvard.edu/abs/2022JSeis.tmp...73G/abstract


Pumped storage hydropower in an abandoned open-pit coal mine: Slope stability analysis under different water levels

In China, many coal mines are being abandoned for economic and environmental reasons. The repurposing of abandoned open-pit coal mines into pumped storage hydropower can help with renewable energy storage, improved mine environments, and increase economic value. GeoStudio, a numerical analysis program, was used for slope stability analysis considering the hydraulic effects under various water levels. In several zones under particular water conditions, a potential landslide risk can exist. To ensure slope stability for PSH plant construction in the Fushun West Open-Pit coal mine, further imperviousness and reinforcement work is required.

Source link: https://ui.adsabs.harvard.edu/abs/2022FrEaS..10.1119L/abstract

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions