Simple calculator to determine the required geometry to construct a compliant safety bund on a mine site.
A safety bund (also commonly referred to as a berm, safety bundwall, bundwall or windrow), is a triangular or trapezoidal shaped mound of earthen material used to redirect wandering vehicles and/or to absorb some of the impact energy if a vehicle hits them. They are a standard safety feature on a haulroad, waste/spoil dump crest, pit wall crest, and other areas where a vertical drop or collision hazard exists. They are also commonly constructed to demarcate nominated pit wall standoff distances in active mining areas.
Mining and geotechnical engineers will typically request a mine safety bund be constructed to a specific height. This free and simple calculator allows mining equipment operators and supervisors to easily calculate the required base width of a typical triangular-shaped bund to ensure compliance with Standard Operating Procedures and Safety Health Management System requirements.
Safety bunds are typically designed based on the following principles:
The minimum height of a safety bund should be at least equal to the radius of the largest tyre using the roadway or area.
Minimum Bund Height = Tyre Radius
The base width depends on the required height and the angle of repose of the material used.
Base Width = 2 × Height ÷ tan(Angle of Repose)
For more information, users are encouraged to read the Recognised Standard 19 - Design and Construction of Mine Roads, published by the Queensland Government Department of Natural Resources, Mines and Energy.
The CMRR calculator aids in the evaluation of underground coal mine roof stability by providing a rating that combines rock core logging with visual assessment.
Calculate the rock mass quality using the Q-system, helping engineers determine support requirements and predict stability in tunneling and mining.
Calculate the gauge pressure for each stage of a packer test, helping engineers determine the appropriate pressure for each stage.
Visualise and analyse well log data from LAS files with this interactive tool, helping geoscientists interpret subsurface conditions and make informed decisions.
Estimate the uniaxial compressive strength (UCS) of rock materials through non-destructive sonic testing, providing crucial data for geotechnical engineering.
Convert point load strength index values to UCS for rocks using empirical correlations, facilitating quicker field assessments without extensive laboratory testing.