Material Property Investigation for Project MIDDLE GUST, Events I, II, and III. Report 1. Subsurface Exploration and Laboratory Test Results

MICS, Subsurface, Site selection, Stratigraphy, Water table, ColoradoMiddle Gust operationThe report documents the results of a site investigation conducted to support free-field ground shock calculations and field operations for Project MIDDLE GUST, Events I, II, and III. Complete boring logs, material classifications, and radiographic logs are presented that describe the subsurface materials at the site. The physiography, geologic history, stratigraphy, and lithology of the subsurface materials are also described. In addition to the usual material classification, index, and composition tests, an extensive series of stratic and dynamic, unconsolidated-undrained, uniaxial strain and triaxial compression tests, along with a miscellaneous series of direct shear tests, Brazil tensile tests, and conventional consolidation tests, were conducted on specimens obtained from undisturbed samples taken at the site.