3GSM

BlastMetriX 3D

BMX_3D

is an easy-to-use system for bench face profiling and blast design based on three-dimensional images.

After setting up field markers at least two photos are taken using a pre-calibrated digital SLR camera.

From the photos a three-dimensional image of the bench face is generated by purpose built software. The result is a metric 3D image representing a dense three-dimensional survey of the rock surface.

Using a dedicated software component the geometry of the blast is planned and optimized taking the actual bench face geometry into account. This is supported by the integrated computation of the real (minimum) burden.

The resulting plan views and profile plots support drilling and loading, and provide comprehensive documentation.

The high quality results allow for rock mass characterisation while planning the blast.

Features

BlastMetriX 3D

  • increases working safety (contact-free measurements).
  • allows for an optimised loading and subsequently for better blasts.
  • reduces production costs (independent reports exist).
  • provides reproducible documentation (conservation of evidence) at a degree of quality superior to measurement techniques without imagery.
  • allows to incorporate geological assessments during blast planning.
  • provides essential support in fly-rock prevention and vibration reduction.
  • is efficiently applied on site and quickly learned due to its ease of use.

Results

When doing a survey/blast planning with BlastMetriX3D the following parameters are immediately available:

  • Basic geometry of the bench face such as height, width, or inclination
  • Suggestion for mean borehole inclination
  • Profile and area in front of the borehole
  • Minimum burden along the borehole
  • Colour-coded burden information over the entire bench face
  • Scaled plan view of drill pattern
  • 3D image as a natural, self-explaining documentation of the bench face

Main benefits at a glance

  • Reduction of production costs
  • Increase of working safety
  • Simple application (take pictures)
  • Fast
  • Objective and complete documentation of the bench face
  • Geological assessment at the same step
  • Fly-rock and vibration reduction
White Paper

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  • Simple application (take pictures)
  • Step 1: 3D image generation

    3D image of a bench face together with planned boreholes and visualised profiles. In addition to the geometric blast planning, the quality of the rock surface becomes assessable. From the 3D image weak zones or more fractured zones are rated in a straightforward manner.

  • Step 2: Planning the blast

    Colour-coded visualisation of burden over the entire bench face (categories configurable) highlights light burden areas (red zones).

  • Drill pattern

    Drill pattern with minimum burden diagram of the active borehole together with geometrical parameters such as drilling length, position, etc. Every borehole can be individually relocated, re-inclined, or turned according to the actual burden situation shown by profiles, minimum burden diagrams, and the coloured burden information over the entire face.

     

  • Blast site volume

    Calculated volume increment for single borehole lines, the entire blast site and single boreholes.

  • Complex geometries

    Large blast sites (latitude several hundred metres) or corners are acquired by merging several images.

    When capturing a corner several imaging locations are required. The software merges them without using any special markers.

  • 3D image of corner

    3D image of corner with colour-coded burden over the entire area. In this case the importance of a true 360° search for the minimum burden becomes particularly evident as otherwise light burden zones around the corner would be missed.