MINE 310 Study Guide - Final Guide: Articulated Hauler, Debt Service Coverage Ratio, Rolling Resistance

• School: UBC
• Department: Mining Engineering
• Course: MINE 310
• Professor: Andrea Arduini

Document Summary

Mine 310: final review: technical factors and estimating costs. Size and plunge of mineralization/orebody (note maximum depth) Strength properties (hardness), type of overburden (nag/pag), oddities such as methane/underground water reservoirs, etc. Rock type, strength, weakened zones/fractures, porosity/permeability/ temperature, pag/nag. Non-discounting urgency (national security) and payback period (shorter the better) Accounting rate of return ratio of income/investment (gives quick measurement of feasibility) Judged o(cid:374) (cid:862)irr(cid:863) a(cid:374)d (cid:862)de(cid:271)t servi(cid:272)e (cid:272)overage ratio(cid:863) (cid:894)=2 (cid:272)o(cid:374)sidered satisfa(cid:272)tory(cid:895) Taylor"s rule (cid:894)worki(cid:374)g (cid:373)i(cid:374)e life(cid:895) 20% error, empirical from 50 mines t = 0. 20r0. 25. Bucket fill factor, swell factor, swing factor (90 ) Wait time spot time: mine haul road design, construction, and maintenance. Roads (general) = big cost (50% of surface mining) Under design premature failure (high maintenance, excessive truck opex, loss of productivity) 10 kg/t = 1% rr = 1% equiv. grade. 0. 6% rr = 1cm tire penetration (deflection wave) 1% rr = -10% slope or -26% flats (speed)