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Three Dimensional Analysis of Strain and Ground Surface Displacement Caused By Underground Mining in the Vicinity of Geotechnical Barriers
By Rafal Misa
In order to prevent the formation of mining damage or to reduce its reach, it is advisable to look for technical solutions which would enable effective protection of construction sites from the impact
Jan 1, 2014
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Ground and Standing Support Interaction in Tailgates of Western U.S. Longwall Mines Used in the Development of a Design Methodology Based on the Ground Reaction Curve
By Dennis Dolinar
"Tailgate entries in U.S. longwalls can be subjected to high loads and deformations. Therefore, tailgate entries are generally supported with varying types and amounts of standing support. However, ev
Jan 1, 2010
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Subsidence Over Room and Pillar Retreat Mining in a Low Coal Seam
By Andre Zingano, Anderson Weiss
"The objective of this paper is to study the behavior of a low thick and low depth coal seam and the overburden rock mass. The mining method is room and pillar in retreat and partial pillar recovery.
Jan 1, 2018
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Damage and Permeability Evolution Mechanisms of Coal under Unloading Condition
By Zhengdong Liu, Kaizhong Zhang, Zhaonan Jiang, Yuanping Cheng, Biao Hu, Qingquan Liu, Ranpeng Wang
"Major coal mining areas in eastern China have entered into the deep mining state. Gas pre-drainage, which has been successful at shallower depths, is not suitable at greater depths because of complex
Jan 1, 2017
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Numerical Modeling Of "Stiff" Backfill in the Coeur D'Alene Mining District (17e85e0c-8155-492f-9c87-d2b9dd6611c4)
By Ed Van Eeckhout
As part of a U.S. Bureau of Mines-sponsored project on the utilization of "stiff' backflll to minimize potential rock burst hazards, a finite element study was undertaken to predict stresses and
Jan 1, 1984
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3-D Discontinuum Numerical Modeling of Rock Mass Stability Investigations Due to Ore Extraction and Backfilling, and Subsidence Estimation for an Underground Mine
By Srisharan Shreedharan, Gang Huang, Hongqing Song, Sijing Cai, Pinnaduwa H. S. W. Kulatilake
"Subsidence prediction due to ore extraction and backfilling during open stoping operations for an underground iron mine in China is reported in this paper. Geologic complexities including faults and
Jan 1, 2016
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Regional Joint Patterns in the Appalachian Basin: Implications for Ground Control and Origin of "Hill Seams"
By Sandin Phillipson
During the course of ground control evaluations conducted by the Mine Safety and Health Administration's Roof Control Division, a number of surface and underground coal mines were visited that exhibit
Jan 1, 2010
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Investigation of Pillar Loading Considerations in Determination of Pillar Stability Factors for Longwall Gateroad Design
By Heather E. Lawson
Recent field data providing measured pillar loading from a deep western mine revealed that an increased load transfer distance existed compared to expected values (Larson et al., 2012). Additionally,
Jan 1, 2013
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Significant Weighting Events on the Longwalls in the Phalen Colliery
By Bob J. MacDonald
The Cape Breton Development Corporation is a federally owned Crown corporation in Canada that operates two coal mines the Prince and Phalen Colliery in the Province of Nova Scotia. Retreat longwall mi
Jan 1, 1997
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Ground Control Criteria for Coal Reserve Optimization in Multiple-Seam Mines
By Eric Westman
Ground control problems caused by multiple-seam interaction frequently sterilize coal reserves. Interaction mechanisms differ for overmining and undermining and are controlled by mining, spatial. and
Jan 1, 1997
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Numerical Modeling the Interburden Impact on Multiple-Seam Coal Mining in Western China
By Jimin Su, Enguang Zhu, Kangning Zhang, Yang Li
"The effect of interburden on overlying strata movement during the mining of a lower group coal seam is still a challenge in China. Based on the multiple coal seams in western China, numerical simulat
Jan 1, 2017
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Letter Of Nomination
By Dr. Daniel W. H. Su
t is both an honor and privilege for me to nominate Dr. Daniel W. H. Su for the inaugural Syd S. Peng Ground Control in Mining Award. I can think of no better candidate than Daniel that is deserving
Jan 1, 2006
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The Caterpillar HW300 Quickscan
By Pieter-Jan Kleiterp
Caterpillar has been involved in highwall mining since the purchase of Bucyrus in 2011. The Cat® HW300 is a continuation of the Superior Highwall Miner that was first sold in the USA in 1994. Currentl
Jan 1, 2014
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CBM Extraction Engineering Challenges and the Technology of Mining the Upper Protective Seam in the Daxing Mine, China
By Yuanping Cheng, Jingyu Jiang, Qiang Zhang
"With the increase of mining depths, deep-seated coal seams face threats from high ground stresses, high gas pressures, high gas content, and low seam permeability, which significantly increase the li
Jan 1, 2017
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Mechanics of Horizontal Movements Associated with Coal Mine Subsidence in Sloping Terrain Deduced From Field Measurements
By Ken W. Mills
The ground movements associated with underground coal mining and, in particular, longwall mining, are recognised to include horizontal subsidence movements, but the mechanics of the processes that cau
Jan 1, 2014
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Use Of Automated Resistivity System To Locate Potential Subsidence Areas Over Old Mines
By Richard G. Burdick
The Bureau of Mines', Denver Research Center has been conducting research for the past few years on the use of resistivity methods to locate abandoned mine workings. As this work has progressed,
Jan 1, 1982
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Experience With The Boundary Element Method Of Numerical Modeling As A Tool To Resolve Complex Ground Control Problems
By George J. Karabin
The Roof Control Division of the Pittsburgh Safety and Health Technology Center, MS HA, is routinely involved in the evaluation of ground conditions in underground coal mines. Assessing the stability
Jan 1, 1994
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A Comparison Between ARMPS and the New ARMPS?LAM Programs
By Peng Zhang
In previous research, the laminated overburden model from the LaModel program was effectively integrated with Analysis of Retreat Mining Pillar Stability (ARMPS) through ARMPS-like input to create a l
Jan 1, 2014
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The Impact Of Three Longwall Coal Mines On Streamflow In The Appalachian Coalfield
By Denise Y. Dizon
The objectives of this study were to document the hydrologic impacts of longwall mining on streams, identify the factors affecting the extent of stream dewatering, and develop empirical trends to pred
Jan 1, 1990
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Advancements In Reflective Seismic Tomography For The Location Of Old Works And Characterization Of Structural Anomalies Impacting Underground Developments
By David R. Hanson
Seismic tomographic imaging, based on the same principles as a medical CAT Scan (Computer-Aided-Tomography). has been used for many years in the oil industry for large-scale subsurface stratigraphic c
Jan 1, 2000