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Study and Analysis of Surface Subsidence Over the Mined Pittsburgh Coalbed.

Authors
Gray-RE; Bruhn-RW; Turka-RJ
Source
NTIS: PB 281 511 Available for Reference At Bureau Libraries :374 pages
Link
NIOSHTIC No.
10001843
Abstract
The purpose of this study is to investigate cases of subsidence over the abandoned mined-out areas of the Pittsburgh coal identified from published and unpublished sources and to determine through a consideration of the geology, topography, climate, mining activity, and evidence at ground surface, what mechanisms control subsidence and under what circumstances it takes place. The report identifies 354 incidents of subsidence in the 8,000-mile Pittsburgh coal region. One is located in Maryland, one is located in west Virginia, and the remainder are located in Pennsylvania. Case histories of several incidents of subsidence above abandoned mines are presented.
Publication Date
19770101
Document Type
CP; Final Contract Report;
Fiscal Year
1977
NTIS Accession No.
PB-281511
NTIS Price
A17
Identifying No.
OFR 25-78
NIOSH Division
PRC;
Source Name
NTIS: PB 281 511 Available for Reference At Bureau Libraries
State
MD; PA; WV;
Performing Organization
Gai Consultants, Inc.
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