We divide the overburden thickness by ore thickness to get the stripping ratio For example if we have an overburden thickness of 80m and ore thickness of 50 m , then the stripping ratio will be: 80/50= 1.6
Overburden tons/ore tons
There is no single formula.It is necessary to calculate the total sum of squares and the regression sum of squares. These are used to calculate the residual sum of squares. The next step is to use the appropriate degrees of freedom to calculate the mean regression sum of squares and the mean residual sum of squares.The ratio of these two is distributed as Fisher's F statistics with the degrees of freedom which were used to obtain the average sums of squares. The ratio is compared with published values of the F-statistic since there is no simple analytical form for the integral.
To calculate an adjusted odds ratio in SPSS, you typically use logistic regression. First, open your dataset and navigate to "Analyze" > "Regression" > "Binary Logistic." Select your dependent variable (the outcome) and independent variables (predictors) to include in the model. After running the analysis, the output will display the odds ratios for each predictor, adjusted for the other variables in the model, allowing you to interpret the adjusted odds ratios.
=max(z1:z10) =min(z1:z10) =average(z1:z10)
It is a ratio scale of measurement.
Overburden tons/ore tons
Yes, a 3:1 stripping ratio means that mining one cubic meter of ore will require mining three cubic meters of waste rock.
The operating stripping ratio in mining is the ratio of the volume of waste material that must be removed to extract a unit volume of ore. It is calculated by dividing the total volume of waste material by the total volume of ore produced. For example, if a mine produces 1,000 cubic meters of ore and requires the removal of 3,000 cubic meters of waste, the stripping ratio would be 3:1. This metric helps assess the economic viability of a mining operation, as higher ratios can indicate increased costs.
the stripping ratio fot the last increment alomg the pit wall. it determines whether one should continue mining using open pit(surface) or switch to uderground.
Formula to calculate the ratio
Stripping ratio is the quantity of waste material that must be removed to extract a unit of ore. It is calculated by dividing the volume of waste material by the volume of ore. A higher stripping ratio indicates a larger amount of waste material that needs to be removed to access the desired ore.
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No. It can be but need not be. For example, you might calculate the ratio of today's temperature in Celsius and in Fahrenheit and calculate the ratio. That is not a rate.
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PV ratio= contribution/sales*100