Results 91 - 100 of 221

• Horizontal Stress
  9/22/2015 - Research areas
  Horizontal Stress Topic Page
• Effect of Ground Control Mesh on Dust Sampling and Explosion Mitigation
  7/1/2015
  An article presenting an assessment of the effects that ground control mesh might have on rock and float coal dust distribution in a coal mine.
• Shotcrete Design and Installation Compliance Testing: Early Strength, Load Capacity,Toughness, Adhesion Strength, and Applied Quality
  4/1/2015 - Reports of Investigations
  A report on a research study to document and develop safe practices for the use of shotcrete as ground support in underground mines, particularly in underground metal mines operating in weak host rock.
• Weak Rock Mass in Nevada Gold Mines: Behavior, Support Design, and Performance
  7/17/2014 - Contracts and cooperative agreements
  A capacity-building contract to address ground control design issues in weak rock masses in Nevada.
• The Role of Gas Desorption in the Energetic Failure of Coal
  3/4/2014 - Contracts and cooperative agreements
  A contract to evaluate the role of gas desorbing on the failure of coal and the resultant influence on dynamic failures such as bumps, bursts, and outbursts.
• ARBS - Analysis of Roof Bolt Systems
  8/20/2013 - PC software
  A software program to help select roof bolts for primary support in underground coal mines
• Ground Control Software Toolbar
  8/20/2013 - PC software
  This installable toolbar provides quick access to seven NIOSH ground control software packages.
• Technology News 542 - Field Use Round Determinate Panel Test System
  6/1/2011 - Technology News
  To develop a portable field-use testing system for conducting ASTM-1550-05 round determinate panel tests.
• Technology News 541 - Field-Use Early-Strength Shotcrete Test System
  6/1/2011 - Technology News
  To develop a practical method of measuring shotcrete early strength onsite in the first six hours after application using a partial beam test standard, ASTM C 1 16-90.
• Current trends in Reducing Ground Fall Accidents in US Coal Mines
  1/1/2011 - Peer reviewed journal articles
  In recent years, the number of some annual ground fall fatalities has approached zero, indicating that significant progress has been made. However, more progress is needed to reduce injuries caused by rock falling between supports and by rib falls.