Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link


Centers for Disease Control and Prevention. CDC twenty four seven. Saving Lives, Protecting People
Search
            ×
                        Mining
                        Mining
                            NIOSH
                            All CDC
                    Submit
                For a full list of topics:A-Z Index
                Advanced Search
            Advanced Search


The National Institute for Occupational Safety and Health (NIOSH)





Mining Product: S-Pillar - Software for Stone Mine Pillar Design
Keywords: Pillar design Stone mining
Original creation date: January 2011
Authors: G Esterhuizen, MM Murphy
Software (Windows) - October 2018
Version: 1.2
Installer (95.8)
Pittsburgh, PA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, 2011 Jan
The S-Pillar software is used for stone mine pillar design.
It was written to assist in the design of stable pillars for room-and-pillar workings in underground stone mines. The calculation methods used in S-Pillar are based on observation of actual pillar performance in 34 different underground operations in the eastern and midwestern United States.
New to version 1.2 (Updated 10/29/18):
Help system update: The variables in the strength of rectangular pillars equation are more described in the text.
Help system update: Additional information on Table 6 has been included, including a PDF of the reference.New to version 1.1:
Table 3 in the help system updated:
Modified  pillar dimensions and recalculated pillar stress for cases No. 17 & 18 based on recent investigations and underground measurements. Pillar stress based on FLAC3D analysis.
Modified pillar dimension of case No. 4, now based on “mined” dimensions measured from mine map, previously dimensions were based on “planned dimensions” as measured in the panel adjacent to the failed pillar.
The x-axis on the factor of safety chart has been updated to plot the minimum width-to-height ratio instead of the effective width-to-height ratio.Installation instructions:
Download and unzip the installer to a local folder.
Open the installer folder and run setup.exe.
Audience: Engineers/designers who are responsible for mine layout design in stone mines
Image of a pillarSoftware (Windows) - October 2018
Version: 1.2
Installer (95.8)
Pittsburgh, PA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, 2011 Jan
See Also
Analysis of Multiple Seam Stability
Analysis of Pillar Design Practices and Techniques for U.S. Limestone Mines
A Computer Software Program that Estimates Air Quantity Requirements in Large Opening Stone Mines
Effects of Weak Bands on Pillar Stability in Stone Mines: Field Observations and Numerical Model Assessment
Pillar and Roof Span Design Guidelines for Underground Stone Mines
Pillar and Roof Span Design in Stone Mines
Pillar Design Issues for Underground Stone Mines
Pillar Stability Issues Based on a Survey of Pillar Performance in Underground Limestone Mines
Pillar Strength and Design Methodology for Stone Mines
Pillar Strength in Underground Stone Mines in the United States
Roof Span Design for Underground Stone Mines
Technology News 481 - Update: Roof Monitoring Safety System for Underground Stone Mines
Technology News 516 - ARMPS-HWM: New Software for Sizing Pillars for Highwall Mining
Underground Stone Mine Pillar Design in Challenging Conditions
Page last reviewed: October 29, 2018
Page last updated: October 29, 2018
Content source: National Institute for Occupational Safety and Health, Mining Program
Facebook
        Twitter
        LinkedIn
        Syndicate Mining
        Site BrowserSafety and Health TopicsData & StatisticsMethodologyMine DisastersMSHA Data FilesMine & Mineworker ChartsTools & PublicationsTools You Can UsePublicationsNews & ArticlesResearch ProgramNORA Mining CouncilStrategic PlanMining Program, 2019-2023Miner Health Program, 2020-2030ProjectsContractsFunding OpportunitiesMining LinksAbout UsContact NIOSH MiningEmploymentFacilitiesHistoryVisitor Information Pillar Design
 NIOSH Homepage
 NIOSH A-Z
Workplace Safety & Health Topics
Publications and Products
Programs


About CDC
					Contact Us
					800-232-4636
 Facebook Twitter Instagram LinkedIn Youtube Pinterest Snapchat
 CONTACT CDC
				Contact Us
							Call 800-232-4636
							Email Us
			ABOUT CDC
				About CDC
							Jobs
							Funding
			POLICIES
				Accessibility
							External Links
							Privacy
							Policies
							No Fear Act
							FOIA
							OIG
							Nondiscrimination
							Vulnerability Disclosure Policy
			CONNECT WITH US
				Facebook
								Twitter
								Instagram
								LinkedIn
							Youtube
								Pinterest
								Snapchat
								Email
			LANGUAGES
				Español
							繁體中文
							Tiếng Việt
							한국어
							Tagalog
							Русский
							العربية
							Kreyòl Ayisyen
							Français
							Polski
							Português
							Italiano
							Deutsch
							日本語
							فارسی
							English


U.S. Department of Health & Human Services
			Accessibility
			External Links
			Privacy
			Policies
			No Fear Act
			FOIA
			Nondiscrimination
			OIG
			Vulnerability Disclosure Policy
			USA.gov


Exit Notification / Disclaimer Policy Close
 Links with this icon  indicate that you are leaving the CDC website. The Centers for Disease Control and Prevention (CDC) cannot attest to the accuracy of a non-federal website.
				Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and products presented on the website.
				You will be subject to the destination website's privacy policy when you follow the link.
				CDC is not responsible for Section 508 compliance (accessibility) on other federal or private website. Website Disclaimers
 Cancel Continue