Search

Search U.S. government technical reports digitized or harvested by TRAIL.

Keyword Search

Enter your search term(s):
[advanced search]

3 results returned

Search results

• Evaluating anchorage testing methods for expansion-type mine roof bolts
• Investigation of stress distributions in burst-prone coal pillars
• In situ tests of bearing capacity of roof and floor in selected bituminous coal mines :a program report - longwall mining