Validation of Modeled Rockmass Permeability Against Field Measurements in a Longwall Mine

Ajayi KM; Harris MM; Khademian Z; Schatzel, Steven J.

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Validation of Modeled Rockmass Permeability Against Field Measurements in a Longwall Mine

Public Domain

2024/02/25
By Ajayi KM ; Harris MM ; Khademian Z ; ...
Series: Mining Publications

Details

Personal Author:

Ajayi KM ; Harris MM ; Khademian Z ; Schatzel, Steven J.
Description:

Predicting rockmass permeability is critical in evaluating various engineering designs, including estimating gas inflow to a longwall mine in the case of a hypothetical breach in the gas well. This study conducted field permeability measurements to validate a geomechanical model capable of predicting rockmass permeability during longwall mining. A series of slug permeability tests were conducted in an active mine in Pennsylvania. A model of the mine was constructed in 3DEC numerical modeling software, and permeabilities were calculated. The modeling results agreed well with the pre- and post-mining permeability measurements, showing the applicability of this tool to evaluate gas well stability near mine workings. [Description provided by NIOSH]
Subjects:

Mining Occupational Health Safety
Keywords:

Analytical Methods Gas Flow Geologic Models Geotechnical Engineering Longwall Mining Mining Industry Rock Mechanics
Series:

Mining Publications
Publisher:

Society for Mining, Metallurgy & Exploration (SME)
Document Type:

Text
Genre:

Proceedings
Place as Subject:

OSHA Region 3 ; Pennsylvania
CIO:

National Institute for Occupational Safety and Health (NIOSH)
Division:

PMRD - Pittsburgh Mining Research Division
Topic:

Workplace Safety & Health
Location:

North America
Pages in Document:

1-11
NIOSHTIC Number:

nn:20069462
Citation:

MineXchange: 2024 SME Annual Conference & Expo, February 25-28, 2024, Phoenix, Arizona, preprint 24-093. Englewood, CO: Society for Mining, Metallurgy & Exploration, 2024 Feb; :1-11
Federal Fiscal Year:

2024
NORA Priority Area:

Mining
Peer Reviewed:

False
Source Full Name:

MineXchange: 2024 SME Annual Conference & Expo, February 25-28, 2024, Phoenix, Arizona, preprint 24-093
Collection(s):

National Institute for Occupational Safety and Health
Main Document Checksum:

urn:sha-512:1371e1845a965fb2559751237e8912d3d006fab02a3f8cb52f3de7095b897507d95ffbb26fb92e81e281397b14167ea5ebfad3f09987b8fa2443c25108177639
Download URL:

https://stacks.cdc.gov/view/cdc/215689/cdc_215689_DS1.pdf
File Type:

[PDF - 2.86 MB ]

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