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  • SME-ICGCM
    Remote Detection Of Abandoned Mine Workings Using Radio Imaging Method Techniques

    By James G. Schotsch

    Unmapped abandoned mines are hazards for under¬ground mines, surface mines and surface structures. The Radio Imaging Method (RIM) provides a cross borehole technique to remotely detect abandoned mine

    Jan 1, 1990

  • SME-ICGCM
    Comparison Of Multiple And Single Entry Roadways For Highly Stressed Longwalls

    By Klaus Opolony

    The world's most popular method of longwall mining requires multiple entry systems for the panels. In contrast to this mine layout the roadways in German coal mining are used for advanced mining

    Jan 1, 2003

  • SME-ICGCM
    Stress Analysis and Support Design for Longwall Mine-Through Entries (A Case Study)

    By Keith Heasley

    An eastern longwall mine was required to mine through a set of three entries located midway down the length of a panel. Of course, the mine desired to design a successful support system for the mine-t

    Jan 1, 2003

  • SME-ICGCM
    Evaluation of Rockburst Hazard from Core Testing

    By Michael Alber

    Coal resource extraction reaches higher depth of overburden and rockbursts as well as associated seismic events appear to become an additional problem to he addressed by ground control engineers. For

    Jan 1, 2004

  • SME-ICGCM
    A Study of Potential Fault Reactivation and Water Intrusion at a Longwall Coal Mine in Appalachia

    By Francis Kendorski

    A longwall coal mine in Appalachia about 1,500 ft deep encountered a fault while developing a new longwall panel. The fault extended from mining depth to the surface near a secondary road and drainage

    Jan 1, 2003

  • SME-ICGCM
    Empirical Approach to Calculate Rock Loads in Coal Mine Roadways

    By Erdal Unal

    In order to define the support parameters, by use of empirical approaches, it is particularly important to analyze the rock-load height that should be controlled by supports. The controlling mechanism

    Jan 1, 1986

  • SME-ICGCM
    Research on the rational structure of tensible rockbolt and the effect of surrounding rock reinforcement

    By Chao-jiong Hou

    The necessity of using tensible rockbolt in the roadway with soft rock, high in-situ stresses, mining influence and other complex conditions was discussed, the structures of three kinds of tonsibte ro

    Jan 1, 1989

  • SME-ICGCM
    Performance of Various Standing and Cribless Tailgate Support Configurations in a Large Eastern Coal Mine

    By Gregory M. Molinda

    Difficult mining conditions in deep western U.S. Iongwalls have necessitated the use of novel tailgate support systems. Extreme ground movement in these yielding gate systems has caused operators to u

    Jan 1, 1997

  • SME-ICGCM
    Recent Developments on Surface Ground Strain Calculations Due to Underground Mining in Appalachia

    By Zach G. Agioutantis

    The prediction of ground movements due to underground mining using the influence function method is a mature technology, widely used by researchers and planning engineers around the world. Surface str

    Jan 1, 2013

  • SME-ICGCM
    Cable Bolts - An Effective Primary Support System

    By Stephen C. Tadolini, John P. McDonnell

    "High-strength cable bolts have been used for ground support in underground coal mines for many years. Cable bolts are routinely used as secondary ground support in numerous longwall gateroad support

    Jan 1, 2010

  • SME-ICGCM
    Bock Bursts Occurrence. in the Coeur D'Alene Mining District of Northern Idaho

    By William Blake

    Mining induced rock bursts have been a severe operational hazard associated with the deep silver mines of the Coeur d'Alene mining district for over 30 years. Recent studies during the past fm ye

    Jan 1, 1987

  • SME-ICGCM
    Stability Control of Clusters of Deep Openings Around Shaft Bottom and Theory of Rock Deformation

    By Yanfa Gao

    Clusters of underground openings were developed around the shaft bottom of Tangshan Mine. They were deep and located in soft rock strata. After development, those openings have been subjected to consi

    Jan 1, 2002

  • SME-ICGCM
    A New Rockbolt Axial Load Measuring Device

    By Hani Mitri

    A new monitoring device called SAFEBOLT (Stress And Force Evaluator in Bolts) has been recently developed. The device SAFEBOLT, essentially replaces the load cell, it permits the monitoring of bolt a

    Jan 1, 2001

  • SME-ICGCM
    Potential Problems Related To Mining Under Or Adjacent To Flooded Workings

    By Stanley J. Michalek

    Good planning is critical to operating a safe and efficient mining operation. As the shallow coal scams become depleted, attention turns toward deeper mineable seams or remnant coal reserves. It is be

    Jan 1, 2000

  • SME-ICGCM
    Illinois Basin Coal Geology and Roof Control

    By Marvin B. Thompson

    "The depositional model for major Illinois Basin coalbeds is well documented and defined on a regional scale. The model was a driving force during past exploration for lower sulfur and thicker coal de

    Jan 1, 2010

  • SME-ICGCM
    Ten Factors about Standing Supports That Might Surprise You

    By Timothy Batchler

    "Standing roof supports help to provide a stable working environment in coal mine gateroads. NIOSH participates in the development of these support systems by conducting full-scale tests in their Mine

    Jan 1, 2017

  • SME-ICGCM
    Mechanical Response of Split-Set Rock Bolts in Squeezing Ground

    Researchers from the National Institute for Occupational Safety and Health's Spokane Research Laboratory installed Split-Set rock bolts instrumented with strain gauges to document the mechanical

    Jan 1, 2005

  • SME-ICGCM
    Reformation Of The Hydraulic Stowing Mining Method (81b9f573-b6ec-447f-bbcd-728c29bd41c4)

    By Liang Yinhuai

    The hydraulic-stowing mining method is most effective for mining thick coal seams. It is superior to the sliced cover-caving and artificial mining method and the fully mechanized sublevel-caving minin

    Jan 1, 1992

  • SME-ICGCM
    The Use Of Cribless Tailgates In Longwall Extraction

    By Russell Frith

    The paper defines the various operational advantages associated with the use of cribless tailgates during longwall extraction and considers the associated ground control issues that need evaluating to

    Jan 1, 2000

  • SME-ICGCM
    Long-term Subsidence Over Longwall Chain Pillar Systems and Its Effects on Surface Structures

    By Yi You

    A research has been conducted to study the long-term subsidence and its possible effects on surface structures In this research, the surface movements in areas when potential for developing long-term

    Jan 1, 1997