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Subsidence Monitoring in Conjunction With Underground Mine Flushing Operations.

Authors
Jacobsen-WE; Bhutani-JS; Elliott-JC
Source
NTIS: PB 250 818 Available for Reference At Bureau Libraries :154 pages
Link
NIOSHTIC No.
10001842
Abstract
Based on subsidence monitoring, findings regarding the degree of land surface stability are reported at two sites in Scranton, Pennsylvania, which overlay multiple levels of abandoned coal mines of the northern anthracite field. The project, sponsored by the federal Bureau of Mines, Division of Environment, entailed periodic measurement of minute surface deformations-vertical and rotational- in developed areas in which the mine cavities had received roof- supportive hydraulic backfill materials, pressure-injected through boreholes.
Publication Date
19750101
Document Type
CP; Final Contract Report;
Fiscal Year
1975
NTIS Accession No.
PB-250818
NTIS Price
A09
Identifying No.
OFR 34-76
NIOSH Division
WO;
Source Name
NTIS: PB 250 818 Available for Reference At Bureau Libraries
State
PA;
Performing Organization
Mitre Corporation
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