Resultados de búsqueda - "Roofs."

Evaluation of ultrasonic measurement systems for bolt load determinations / por Tadolini, Stephen C.

Materias: “…Mine roof bolting Testing.…”

Entry stabilization utilizing rib bolting procedures / por Dolinar, Dennis R.

Materias: “…Mine roof bolts, Resin.…”

Strategies for encouraging miners to stay away from unsupported roof and perform self-protective actions / por Peters, Robert H.

Materias:

Field evaluation of cable bolt supports, homestake mine, lead, SD /

Materias: