RETRACTED ARTICLE: Numerical Simulation of Gravity Flow in Sublevel Caving Based on Polyhedron DEM [0.03%]
子水平崩落法重力矿浆流动的多面体离散元数值模拟(英文)
Changping Yi,Daniel Johansson,Matthias Wimmer et al.
Changping Yi et al.
The gravity flow behavior of blasted ore and caved waste in sublevel caving (SLC) mines is complex. The shape of fragmented ore and caved waste is identified as one of the principal factors influencing the gravity flow of ore. To investigat...
Powered Air Purifying Respirators (PAPRs) for Protection from Respirable Dust in Underground Mines [0.03%]
煤矿井下呼吸性粉尘的防护——PPAR的优势
Luis Sanchez Gonzalez,Ashish Ranjan Kumar,Barbara Arnold
Luis Sanchez Gonzalez
Underground mining operations use several remedial measures to alleviate the miners' exposure to respirable dust. This includes maintaining the ventilation airflow, deploying scrubbers on equipment, and using water sprays to move air and du...
Victor Simon,Robert Pellerin,Michel Gamache
Victor Simon
Accurately predicting haul truck (HT) travel times (TT) in underground mines is essential for enhancing operational planning, as it allows planners to forecast extraction rates at each work face, minimize queue-related downtime, and ultimat...
Aleksandar D Bugarski,Dylan A Ritter
Aleksandar D Bugarski
Strategies based on the repowering existing and powering new mobile equipment with contemporary diesel engines with substantially lower tailpipe and crankcase emissions are expected to play an important role in the efforts to curtail exposu...
Fracture Initiation Pressure as a Measure of Cemented Paste Backfill Strength [0.03%]
基于岩体起裂压力的膏体充填体力学参数测试方法研究
James A Frimpong,Basel Ahmad Shabab,Rohit Pandey et al.
James A Frimpong et al.
This laboratory-scale study presents the development and validation of a hydraulic fracturing technique to directly measure the tensile strength of cemented paste backfill (CPB), providing an alternative to traditional strength testing meth...
Emission-Assisted Maintenance for Advanced Diesel Engines and Exhaust Aftertreatment Systems in Underground Mining [0.03%]
用于地下采矿的先进柴油机和排气后处理系统的排放辅助维护技术
Aleksandar D Bugarski
Aleksandar D Bugarski
Maintaining the particulate emissions from contemporary diesel engines equipped with diesel particulate filter (DPF) systems at targeted levels and assuring the effectiveness of DPF systems retrofitted to traditional diesel engines are crit...
Perspectives of Mining Personnel on Adopting Occupational Exoskeletons: Comparisons Between a Developed and a Developing Country [0.03%]
发达国家与发展中国家矿山工人对职业外骨骼采纳的观点比较研究
Feyisayo Akinwande,Sunwook Kim,Aanuoluwapo Ojelade et al.
Feyisayo Akinwande et al.
Occupational exoskeletons (EXOs) have received growing attention as a new ergonomic intervention to reduce physical demands in various industries (e.g., manufacturing, logistics, construction, and agriculture). However, their potential use ...
A Risk-Based Pillar Design Approach Combining Stochastic Continuous and Discontinuous Modeling in an Underground Stone Mine [0.03%]
基于风险的矿柱设计方法研究——以地下石灰岩采场为例
Juan J Monsalve,Aman Soni,Richard Bishop et al.
Juan J Monsalve et al.
The collapse of a mine pillar is a catastrophic event with great consequences for a mining operation. In spite of the low probability of occurrence for a pillar collapse in comparison to other ground control instability issues, these conseq...
Contribution of Individual Support Components to Roof Stability in a Longwall Gateroad [0.03%]
长壁区gate道路中单个支撑组件对顶板稳定性的贡献作用研究
Zoheir Khademian,Morgan Sears
Zoheir Khademian
According to the 2010-2019 Mine Safety and Health Administration (MSHA) accident report database, 91% of reported ground control accidents in US longwall mines were caused by roof instability. Gateroads are subjected to significant changes ...
Thermal Runaway Pressures of Iron Phosphate Lithium-Ion Cells as a Function of Free Space Within Sealed Enclosures [0.03%]
铁磷酸锂离子电池在密封容器内自由空间变化下的热失控压力研究
Thomas H Dubaniewicz,Isaac Zlochower,Teresa Barone et al.
Thomas H Dubaniewicz et al.
Mining vehicle manufacturers are developing lithium-ion (Li-ion) battery electric vehicles as an alternative to diesel-powered vehicles. In gassy underground mines, explosion-proof (XP) enclosures are commonly used to enclose electrical ign...