Results 51 to 60 of about 815,128 (154)

Technological Solutions for Processing Closed Coal Mines by Open Pit Method

E3S Web of Conferences, 2018
The main sources of environmental pollution are: pollution from the residual effects of working out of mine fields by underground method; pollution from secondary mining of mine fields by the open method.
Makarov Vladimir, Kovacs Péter, Dagmar Samuel, Paulman Riccardo   +3 more
doaj   +1 more source

A LiDAR SLAM Algorithm Considering Dynamic Extraction of Feature Points in Underground Coal Mine [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
To address the absence of GNSS signals in underground coal mines and the susceptibility of mainstream LiDAR SLAM to degradation due to insufficient feature constraints, this paper proposes a tightly-coupled SLAM algorithm incorporating LiDAR and IMU for ...
X. Lin, W. Yao, T. Yan
doaj   +1 more source

Discussion on Monitoring Technology of Coal Mine Dust

Gong-kuang zidonghua, 2011
The paper analyzed harm and characteristics of coal mine dust and standard of contact concentration of respiratory coal dust in air of working space, introduced developing status of monitoring technology of coal mine dust, and compared characteristics of
LI Dong-xiao
doaj  

Spatio-temporal evolution laws of storage coefficient of coal mine underground reservoir and contact network of crushed rock. [PDF]

PLoS One, 2023
Qin X, Cao Z, Wei L, Yang H, Sun H, Zhou S.   +5 more
europepmc   +1 more source

Research on Intelligent Monitoring and Protection Equipment of Vital Signs of Underground Personnel in Coal Mines: Review

Sensors
The coal industry is a high risk, high difficulty industry, and the annual global mine accident rate is high, so the safety of coal mine underground operations has been a concern.
Yuntao Liang, Yingjie Liu, Changjia Lu, Dawei Cui, Jinghu Yang, Rui Zhou   +5 more
doaj   +1 more source

Research on Temporal Patterns of Water-Rock Interaction in the Coal Mine Underground Reservoir Based on the Dynamic Simulation Test. [PDF]

ACS Omega, 2023
Liu S, Zhang K, Gao J, Yang Y, Bai L, Yan J.   +5 more
europepmc   +1 more source

Underground coal thermal treatment research at the University of Utah

, 2011
presentation6th Annual International Conference & Workshop on Underground Coal Gasification, 23rd - 24th March ...
Pugmire, Ron
core  

An assessment of the quantum for financial provision of mine closures: a Monte Carlo approach. [PDF]

, 2012
Includes abstract.Includes bibliographical references.Poor mine closure policy threatens both society and the environment. Some of the more prominent threats that have manifested are acid mine drainage, slimes dams and toxic dust from dumps.
Hewitson, Shaun B
core   +1 more source

Potential Evaluation of Cross-Seasonal Heat Storage of Coal Mine Underground Reservoir: A Case Study Based on Multiphysics Coupling Numerical Simulation Method

Applied Sciences
This study explores the innovative use of post-mining subsurface voids by proposing a coal mine goaf-based underground reservoir energy storage system. By fully utilizing the geothermal potential and insulation properties of the mined-out coal seam, we ...
Zhenyu Wang, Jiawei Tang, Zixu Hu, Qiang Guo, Haiqin Zhang, Kangning Zhang, Siwei Kang, Xiaolin He   +7 more
doaj   +1 more source

Strategic Monitoring of Underground Coal Gasification

, 2011
presentation6th Annual International Conference & Workshop on Underground Coal Gasification, 23rd - 24th March ...
Yang, Xianjin; Mellors, Robert; Ramirez, Abe; Hunter, Steve; Wagoner, Jeff; Camp, David; Friedmann, S. Julio
core