Browse TRAIL Inventories

Methods and costs of deepening the Crescent shaft, Bunker Hill & Sullivan Mining and Concentrating Company, Kellogg, Shoshone County, Idaho

Using precast reinforced-concrete sets in the Pioneer Tunnel of Great Northern Railway's Cascade Tunnel, King County, Wash.

Design and development of a rock bolt anchored by explosive forming :a progress report

Field testing of the explosive-anchored rockbolt

Yield and ultimate strengths of rock bolts under combined loading

Explosive-expansion center-hole anchor

Transverse force produced by tensioned expansion-shell-type rock-bolt anchors

Load loss from rock-bolt anchor creep


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