Search U.S. government technical reports digitized or harvested by TRAIL.
Analysis of fracture orientations for input to structural models of discontinuous rock
Determination of attitudes of joints surveyed with a borescope in inclined boreholes
Analysis of the geometry of fractures in San Manuel Copper Mine, Arizona
Procedures used for sampling fracture orientations in an underground coal mine
A Bureau of Mines direct-reading azimuth protractor
A computer program for clustering data points on the sphere
FRACTAN: a computer code for analysis of clusters defined on the unit hemisphere,
Procedures for determining support of excavations in highly yielding ground