Mining in focus
An example of a truck weighing its load on a weighbridge without a barrier.
DIFFERENT TYPES OF
WEIGHBRIDGES
There are two broad categories
of weighbridges: above-ground
weighbridges and in-ground
weighbridges. In-ground
weighbridges, in turn, are divided
into semi-pit weighbridges (with
side walls that act as retaining walls
and a level weighing surface) and
fully in-ground weighbridges (the
weighing surface is completely level
with the surrounding ground).
Overview of the different types of
weighbridges
Above-ground weighbridges
These bridges are cost-effective
and require the least amount of
site preparation. However, they do
require the largest surface area. Can
be supplied in single deck, twin
deck, or multi-deck configuration,
depending on the length of the
vehicles that need to be weighed. extensive site preparation, excavation,
and reinforcing, making them the most
expensive option.
Semi-pit weighbridge
No ramps are required, which makes
semi-pit weighbridges a cost-effective
option, but some civil works are necessary
(excavation, drainage pipes or sumps). Multiple-deck weighbridge
These can be constructed as
above-ground, semi-pit, or fully
in-ground weighbridges, so it is
more of a variation of design than a
specific type. The number and length
of decks depend on requirements.
Custom semi-pit weighbridge
Normally installed where there are
width constraints, existing buildings
adjacent to one or both sides of the
weighbridge, or bypass roads adjacent
to one or both sides.
Fully in-ground weighbridge
This weighbridge has the smallest
footprint of all the options and is ideal
for sites where there are extreme space
restrictions. These bridges require
Portable weighbridges
Portable or relocatable weighbridges
are a cost-effective option,
particularly for both non-trade
operations and for those sites that
will only be used temporarily (less
than two years).
Source: UltraHawke, a supplier of
weighbridges in Australia.
JULY 2018 MINING MIRROR
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