Mining Engineering

Haul Truck Cycle Time Estimator for Variable-Grade Haul Roads (Loaded and Empty Legs) calculator

Haul Truck Cycle Time Estimator for Variable-Grade Haul Roads (Loaded and Empty Legs) engineering calculator.

Runnable This tool can run, but independent engineering verification has not been established.

Quick Answer

Calculate Haul Truck Cycle Time Estimator for Variable-Grade Haul Roads (Loaded and Empty Legs)

Calculator

Total cycle time (s)
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Result Interpretation

Haul Truck Cycle Time Estimator for Variable-Grade Haul Roads (Loaded and Empty Legs) calculator computes Total cycle time in s using the defined engineering formula and the input values provided. Total cycle time is expressed in s. No universal acceptance threshold is defined by this calculator.

Worked Example

Verified calculation

Given:

  • Loaded haul distance = 1500
  • Empty return distance = 1450
  • Average speed during loaded leg = 7.778
  • Average speed during empty leg = 10.556
  • Loading time = 42
  • Dumping time = 18
  • Manoeuvring time per end (load/dump site) = 7.5

Expected Result:

  • Total cycle time = 405.21427017313

Engineering Interpretation:

Under the given input conditions, the calculated result is: Total cycle time = 405.21427017313 s.

The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from deterministically validated test cases.

Formula / Method

total cycle time = (loaded haul distance / average speed during loaded leg) + (empty return distance / average speed during empty leg) + loading time + dumping time + 2.0 * load/dump site

Formula family: formula_mining_haul_truck_cycle_time_estimator_variable_grade_loadedempty

Variables

SymbolLabelRoleDescription
L_loaded Loaded haul distance INPUT Loaded haul distance
L_empty Empty return distance INPUT Empty return distance
V_avg_loaded Average speed during loaded leg INPUT Average speed during loaded leg
V_avg_empty Average speed during empty leg INPUT Average speed during empty leg
t_load Loading time INPUT Loading time
t_dump Dumping time INPUT Dumping time
t_manoeuvre Manoeuvring time per end (load/dump site) INPUT Manoeuvring time per end (load/dump site)
cycle_time Total cycle time OUTPUT Total cycle time

Calculation Steps

  1. Enter the loaded haul distance in m.
  2. Enter the empty return distance in m.
  3. Enter the average speed during loaded leg in m/s.
  4. Enter the average speed during empty leg in m/s.
  5. Enter the loading time in s.
  6. Enter the dumping time in s.
  7. Enter the manoeuvring time per end (load/dump site) in s.
  8. Step 1: Compute total cycle time.
  9. Read the total cycle time (s) from the results.

Engineering Summary

Calculate Haul Truck Cycle Time Estimator for Variable-Grade Haul Roads (Loaded and Empty Legs)

Frequently Asked Questions

What does this calculator calculate?

The Haul Truck Cycle Time Estimator for Variable-Grade Haul Roads (Loaded and Empty Legs) calculator estimates Total cycle time based on the input parameters you provide

Why is loaded haul distance important in this calculation?

loaded haul distance is directly proportional to total cycle time. When you enter loaded haul distance in m, the calculator uses it in the engineering formula to compute the output

How should I interpret the result total cycle time?

The calculator outputs total cycle time in s. The result is computed directly from the input values using the defined engineering formula

What units should I use for the inputs?

Enter each value in the units shown next to the input field: Loaded haul distance (m), Empty return distance (m), Average speed during loaded leg (m/s), Average speed during empty leg (m/s), Loading time (s), Dumping time (s), Manoeuvring time per end (load/dump site) (s). Make sure all inputs use the specified units for consistent results

What assumptions does this calculator use?

This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment

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