Strength of Backfilling : In Situ Test Methods and Numerical Modeling

• Main Author: Keshvary, Rafi
• Format: Bachelor Thesis
• Language: English
• Published: 2013
• Subjects: Technology; Boliden; Garpenberg; Lappberget; Pastefill; UCS; BFG; Numerical Code; FLAC; Strength properties; Teknik; Luleå
• Online Access: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-57132

In very shallow dipping ore bodies or where the ore is wide Boliden sometimes use drift and fill mining. In order not to create too large spans rooms are backfilled with cement stabilized hydraulic fill before excavating the adjacent room. The purpose of the fill is to support the walls and roof. Th...