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Mine Site Geophysical and Drilling Investigations Relative to an Active Chimney Failure, Pea Ridge, Missouri.
For Reference Only At Bureau Libraries :142 pages
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.
CP; Final Contract Report;
For Reference Only At Bureau Libraries
Shannon and Wilson, Inc.
Page last reviewed: May 5, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division