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Mine Site Geophysical and Drilling Investigations Relative to an Active Chimney Failure, Pea Ridge, Missouri.

Authors
Alizadeh-MM; Schwarz-SD
Source
For Reference Only At Bureau Libraries :142 pages
Link
NIOSHTIC No.
10001759
Abstract
A geophysical and core drilling investigation was conducted to obtain data relative to an active chimney failure at the Pea Ridge Mine, Washington County, Missouri. The geophysical investigations were conducted to delineate the size and dimension of the cavity and any discontinuities in the rock mass surrounding the cavity and to determine physical properties of the rock units. These investigations included velocity profiling and electrical resistivity profiling. Core boring investigations included four deep holes that were cored down to a preCambrian rhyolite porphyry. These holes were cored to provide rock samples suitable for testing as well as to provide access for borehole logging equipment which included caliper, resistivity, velocity, and density logging.
Publication Date
19770101
Document Type
CP; Final Contract Report;
Fiscal Year
1977
NTIS Accession No.
NTIS Price
Identifying No.
OFR 8-78
NIOSH Division
DRC;
Source Name
For Reference Only At Bureau Libraries
State
MO; WA;
Performing Organization
Shannon and Wilson, Inc.
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