building a haul road tor t282b dump truck with gvm 600t same as a380 jumbo
Post on 22-Jan-2018
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An Engineering Challenge
Building Hauls Roads for These Ultra Class Dump Trucks
with GVW 600t
Location : Bowen Basin Queensland, Australia
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Liebherr weighs the same as A380 Jumbo
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Purpose of Presentation is “Information Sharing Only” and opinions
shared are of the author only
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Liebherr T282B
Gross Vehicle Weight (GVW): 600 ton
Payload Class: 363 ton
Empty Vehicle Weight (EVW): 237 ton
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What does the project involve
Mine Upgrade 2012 involves the introduction of additional fleets:
2 x Liebherr R9800 excavators (800t)
12 x Liebherr T282B dump trucks
Construction of 12km of new hauls for T282B fleet
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What does the project involve ?
Mine Upgrade 2012 involves the introduction of additional fleets:
2 x Liebherr R9800 excavators (800t)
12 x Liebherr T282B dump trucks
Construction of 12km of new hauls for T282B fleet
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Existing hauls roads
constructed from
overburden,
not weather proof
Roads will not
sustain T282 loads
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Process for tackling this Project July 2012 start
Principal & Main Contractor Sign New Mining Operations Contract
Scope of Works for Construction of New Hauls Completed
Appointment of Specialised Consultants (Pells Sullivan Meynink
Geotechnical Engineers)
Source Rock Assessment (On-Site Sandstone)
Source Rock Assessment (External Quarry Sites)
Review Past Learning from other Mining Projects in QLD and NSW
Review Technical Papers by Robert Thompson and others
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T282B vehicle Dimensions Width = 9.69m
Haul Road Width = 40m
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w Pad set up with sandstone that hs been used to build 800t excavator and withstood heavy
loading
Mechanical Team on were going to get site assessed by Geotechnical as a 250T crawler crane was going to operate on this hardstand for plant build of LiebherrR9800 800t excavator and T282B dump truck builds
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wPMS site investigation confirmed a large variability in sandstone rock geotechnical properties
Thorough and carefully material selection would be very important
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Potential sandstone source for suitable material for mobile crushing plant n site however large mudstone deposit also present within source
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wChallenge on site was to work on Change Management and work with Mining Team to : build and assign correct resources and equipment to construct haul route with appropriate material rather overburden which is unsatisfactory in wet weather
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PM
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nSite Sandstone Rock
Variability
Red = Stop: Siltstone / Mudstone
(not suitable for road construction
Amber = Caution: Sandstone with
excessive quantity of siltstone
Green = Go : Sandstone with
suitable properties CBR 30 - 45
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Adrian Smith’s from PSM Site inspection :
Some potential to utilise some sound sandstone material on site
Carefully mining will need to take place to only utilise certain sandstone
sources for feed to on site crushing and screen plant
Multiple samples take as per Thiess request for Laboratory Testing
Thiess and PMS to work together on optimising the pavement design based on
sandstone material on site
Dave Tulloch from Road Safety Training Services completed assessment on site on Mine Road Friction Resistance
Challenge was for Mining Management Team to incorporate these initiatives and recommendations
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wDave Tulloch from Road Safety Training Services completed assessment on
site on Friction Evaluation and Operational Protocol
Challenge was for Mining Management Team to incorporate these recommendation
Construction of new haul roads would include recommendation from report
Challenge for site teams to “change mindset” and learn to use Vericomsystem and adopt system of measuring and friction testing on haul routes rather than using Open Cut Examiners judgement on safety of haul roads post wet weather
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Site Sandstone Rock Variability
Sandstone with suitable
properties CBR 30 – 45
However variability was
evident in test results
PMS report provided guidance
on variability
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Qu
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thank you for your time
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