Diameter = 100m Bench Height = 10m Bench Width = 5m Bench Slope Angle = 45° a. What is the volumetric stripping ratio of the deposit if all of the materials in the first bench are waste materials, and all of the materials from the 2nd to 3rd bench are ore reserves? b. What is the mine life if the ore extraction rate per day is 1000 WMT per day? (SG = 2.5)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.2: Graphs Of Equations
Problem 51E
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Diameter = 100m
45
Bench Height = 10m
Bench Width = 5m
V1
10
10
Bench Slope Angle = 45°
V2
V3
Cone = 1/3 BH
B= 3.14 r x r
Radius = 50
B = 3.14* 50 x 50
Guide:
B= 7850
VT = (7850* 50) / 3
VT = 130,833.33 cu. m.
Volume of the cone = (3.14 x 40 x 40 x 40)x 1/3
= 66, 986.67
V1 = 130,833.33- 66, 986.67
V1 = 63,846.66
V1+V2+V3 = 99,745 cu.m
a. Stripping Ratio = V1/ (V2+V3)
b. Life of Mine = (V2+V3) / (1000 WMT (2.5))
Transcribed Image Text:Diameter = 100m 45 Bench Height = 10m Bench Width = 5m V1 10 10 Bench Slope Angle = 45° V2 V3 Cone = 1/3 BH B= 3.14 r x r Radius = 50 B = 3.14* 50 x 50 Guide: B= 7850 VT = (7850* 50) / 3 VT = 130,833.33 cu. m. Volume of the cone = (3.14 x 40 x 40 x 40)x 1/3 = 66, 986.67 V1 = 130,833.33- 66, 986.67 V1 = 63,846.66 V1+V2+V3 = 99,745 cu.m a. Stripping Ratio = V1/ (V2+V3) b. Life of Mine = (V2+V3) / (1000 WMT (2.5))
Diameter = 100m
Bench Height = 10m
Bench Width = 5m
Bench Slope Angle = 45°
a. What is the volumetric stripping ratio of the deposit if all of the materials in the first bench are waste
materials, and all of the materials from the 2nd to 3rd bench are ore reserves?
b. What is the mine life if the ore extraction rate per day is 1000 WMT per day? (SG = 2.5)
Volume of the cone BH/3
Transcribed Image Text:Diameter = 100m Bench Height = 10m Bench Width = 5m Bench Slope Angle = 45° a. What is the volumetric stripping ratio of the deposit if all of the materials in the first bench are waste materials, and all of the materials from the 2nd to 3rd bench are ore reserves? b. What is the mine life if the ore extraction rate per day is 1000 WMT per day? (SG = 2.5) Volume of the cone BH/3
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