Aleksandar D Bugarski,Teresa L Barone,Jon A Hummer
Aleksandar D Bugarski
Researchers from the National Institute for Occupational Safety and Health (NIOSH) conducted a study in an isolated zone of an underground mine to characterize aerosols generated by: (1) a diesel-powered personnel carrier vehicle operated o...
Design of a water curtain to reduce accumulations of float coal dust in longwall returns [0.03%]
用于减少长壁回风道中悬浮煤尘积聚的水幕设计
Clara E Seaman,Michael R Shahan,Timothy W Beck et al.
Clara E Seaman et al.
Accumulation of float coal dust (FCD) in underground mines is an explosion hazard that affects all underground coal mine workers. While this hazard is addressed by the application of rock dust, inadequate rock dusting practices can leave mi...
Geologic data collection and assessment techniques in coal mining for ground control [0.03%]
煤炭开采中用于地面控制的地质数据采集和评估技术
Mark Van Dyke,Ted Klemetti,Joe Wickline
Mark Van Dyke
The identification and mitigation of adverse geologic conditions are critical to the safety and productivity of underground coal mining operations. To anticipate and mitigate adverse geologic conditions, a formal method to evaluate geotechn...
Analysis of ARMPS2010 database with LaModel and an updated abutment angle equation [0.03%]
ARMPS2010数据库的LaModel分析及更新的桩角方程
Deniz Tuncay,Ihsan Berk Tulu,Ted Klemetti
Deniz Tuncay
The Analysis of Retreat Mining Pillar Stability (ARMPS) program was developed by the National Institute for Occupational Safety and Health (NIOSH) to help the United States coal mining industry to design safe retreat room-and-pillar panels....
A case study of the stability of a non-typical bleeder entry system at a U.S. longwall mine [0.03%]
美国某长壁矿非典型放煤口系统稳定性案例分析
T M Klemetti,M A Van Dyke,I B Tulu et al.
T M Klemetti et al.
Longwall abutment loads are influenced by several factors, including depth of cover, pillar sizes, panel dimensions, geological setting, mining height, proximity to gob, intersection type, and size of the gob. How does proximity to the gob ...
Exploration of petrographic, elemental, and material properties of dynamic failure-prone coals [0.03%]
基于煤岩学、元素和物性特征的易动力灾害危险煤层识别研究
Heather Lawson
Heather Lawson
The purpose of this study is to explore how the geochemical and petrographic components of coal may impact its physical properties and how these correlate with a history of reportable dynamic failure in coal mines. Dynamic failure events, a...
Numerical simulation of roof cavings in several Kuzbass mines using finite-difference continuum damage mechanics approach [0.03%]
基于连续损伤力学的离散单元法及其在几处库兹巴斯矿井冒顶模拟中的应用研究
Mikhail Eremin,Gabriel Esterhuizen,Igor Smolin
Mikhail Eremin
An essential stage of mine design is an estimation of the steps of the first and periodic roof caving in longwall mines. Generally, this is carried out using the field experience and can be much enhanced by numerical simulation. In this wor...
Loading characteristics of mechanical rib bolts determined through testing and numerical modeling [0.03%]
基于试验和数值模拟的让压型锚杆荷载特性研究
Khaled Mohamed,Gamal Rashed,Zorica Radakovic-Guzina
Khaled Mohamed
Underground coal mines use mechanical bolts in addition to other types of bolts to control the rib deformation and to stabilize the yielded coal ribs. Limited research has been conducted to understand the performance of the mechanical bolts...
Evaluation of stress-control layout at the Subtropolis Mine, Petersburg, Ohio [0.03%]
俄亥俄州皮特斯堡市Subtropolis矿区应力控制布局的评估
Anthony Iannacchione,Tim Miller,Gabriel Esterhuizen et al.
Anthony Iannacchione et al.
The Subtropolis room-and-pillar mine extracts the Vanport Limestone (Allegheny Formation, Pennsylvanian System) near Petersburg, Ohio. Strata instability problems associated with excessive concentrations of lateral stress caused the mine op...
Influence of longwall mining on the stability of gas wells in chain pillars [0.03%]
综采放顶煤沿空留巷对气井稳定性影响研究
Peter Zhang,Heather Dougherty,Daniel Su et al.
Peter Zhang et al.
Longwall mining has a significant influence on gas wells located within longwall chain pillars. Subsurface subsidence and abutment pressure induced by longwall mining can cause excessive stresses and deformations in gas well casings. If the...