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  • SME-ICGCM
    New Design Criteria for Roof Bolt Systems

    By John C. Stankus

    From research started six years ago, a new design criteria has been developed for mine roof bolt systems This design criteria precisely and quantitatively determines parameters such as bolt length, in

    Jan 1, 1997

  • 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
    Site Characterization For Planning Underground Stone Mines

    By Francis S. Kendorski

    Underground stone mines tier construction aggregates and industrial minerals are being planned in increasing numbers throughout the United States. At the middle of the last century (1950s) underground

    Jan 1, 2000

  • SME-ICGCM
    Design Considerations of the Secondary Roof Support for Longwall Tailgate Entries

    By Jinsheng Chen

    To maintain the stability of longwall tailgate entries, they have to be supported by not only the primary roof support but also the secondary roof support due to the impact of the longwall mining¬indu

    Jan 1, 2003

  • SME-ICGCM
    Changes In Seismic Measurements With Blast Induced Fracturing: A Field Experiment

    By Clifford J. Roblee

    In this paper, various seismic indicators are evaluated for ability to discern fractures induced into a rock mass by blasting. This is accomplished by presenting results from in situ crosshole seismic

    Jan 1, 1989

  • SME-ICGCM
    Overview of Safety Considerations with Highwall Mining Operations

    By George Gardner

    The rapid growth of highwall mining in the Appalachian coalfields has resulted in unique safety concerns. Due to the concentration of activity at the base of the highwall and the potentially destabili

    Jan 1, 2002

  • SME-ICGCM
    Delineation Of Abandoned Workings With An In-Seam Seismic Method

    By I. Geldmacher

    In-Seam Seismic (ISS) methods have been used extensively worldwide for the past 10 years to assist mine planning, espe¬cially longwall mining in coal seams. The technique is only starting to gain wide

    Jan 1, 1990

  • SME-ICGCM
    The Influence Of Geomining Parameters Over Stress Distribution In And Around Depillaring Faces

    By Rajendra Singh

    In India, pillar mining is contributing more than 90% of underground production which involves extraction of a part of coal from bords with pillars around as natural support in the development stage.

    Jan 1, 1990

  • SME-ICGCM
    Strata Control Advances At Jim Walter Resources, Mining Division

    By Eddie Martin

    Jim Walter Resources, Mining Division, employs the retreat longwall mining system as the primary method of coal production. The strata control aspects of developing and maintaining roadways for retrea

    Jan 1, 1988

  • SME-ICGCM
    Investigation into the Extent and Mechanisms of Gloving and Un-mixed Resin in Fully Encapsulated Roof Bolts

    Effective strata control, utilising fully encapsulated roof bolts, is dependent on the installed quality of the reinforcement elements. One mechanism by which fully encapsulated roof bolts may become

    Jan 1, 2003

  • SME-ICGCM
    Design Procedure for Arch Canopies for Rehabilitation of High-Roof-Fall Areas

    By Richard A. Allwes

    A procedure is presented for the design of an arch canopy for the application of rehabilitating a high-roof-fall area. This procedure is specifically developed for evaluating an unbackfllled arch cano

    Jan 1, 1986

  • SME-ICGCM
    Field Testing of a Real Time Roof Mapping Drilling Display System in a Limestone Mine

    By Craig Collins

    The objective was to develop a Real Time Drilling Display System for Rotary Roof Bolting using Analyzing Software to display mapped holes as they are being drilled in real time. The Analyzing Softw

    Jan 1, 2004

  • SME-ICGCM
    An Approach To Identifying Geological Properties From Roof Bolter Drilling Parameters

    By Gerald I. Finfinger

    Identifying the properties of overlying rocks in underground mining operations is important to ensure the appropriate roof support design is used to maintain stability of the mine entries. Recently J.

    Jan 1, 2000

  • SME-ICGCM
    Introducing the New Windows ARMPS-LAM Program

    By Keith Heasley, Christopher Newman, Zach Agioutantis

    "Previously, in 2013, a laboratory version of the computer code ARMPS-LAM, introduced at the 32""d International Conference of Ground Control in Mining, successfully integrated the laminated overburde

    Jan 1, 2016

  • SME-ICGCM
    The Design And Application Of Propsetter? In Underground Coal Mines

    By Clifford McCartney

    The PropsetterTM System has been designed and developed to cost effectively solve problems experienced with conventional underground supports used in tailgates, headgates, bleeder entries and as suppl

    Jan 1, 1995

  • SME-ICGCM
    Ice Pillars, Packwalls, and Brattices

    By David L. Kuck

    This paper describes a system for providing structural, support in underground mines, employing water ice for pillars. packwalls and brattices. It consists of a refrigeration brine chiller, brine circ

    Jan 1, 1987

  • SME-ICGCM
    Site Characterization For Ultra-Close Multi-Seam Mining

    By Yingxin Zhou

    Data from these field studies and previous case study data have been combined to define ultra-dose seam mining environments and relate them to observed failure conditions. A rating system for ultra-cl

    Jan 1, 1990

  • 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
    Specialty Truss System And Their Performance

    By Ben L. Seegmiller

    Specially truss systems? including the Intersection Truss®, Continuous Entry Truss®, Cutter Roof Truss® and Roktrus® have been used in many coal mines in the mid- west and western United States during

    Jan 1, 1990

  • SME-ICGCM
    Case Studies Of Depillaring Under Special Strata And Mining Conditions

    By P. R. Sheorey

    Four case studies of special geomining conditions from Indian coalfields are discuss- ed. These cases relate to (a) pillar extraction in two seams simultaneously under a difficult roof (Satpura I and

    Jan 1, 1988