1 / 19

DRE20 Recovery

DRE20 Recovery. The Problem DRE20 was positioned at a combined angle of 45.5 degrees from the horizontal. The Objectives Recover DRE20: Safely. Minimise collateral damage to the machine. To allow return to work as soon as possible. DRE20 Recovery. The Problem Con’t. DRE20 Recovery.

libitha
Download Presentation

DRE20 Recovery

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. DRE20 Recovery • The Problem • DRE20 was positioned at a combined angle of 45.5 degrees from the horizontal. • The Objectives • Recover DRE20: • Safely. • Minimise collateral damage to the machine. • To allow return to work as soon as possible. H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

  2. DRE20 Recovery • The Problem Con’t H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

  3. DRE20 Recovery • The Problem Con’t • Material in the area does not have a high bearing capacity. • Machine could not safely be recovered using traditional methods of material removal from under the tub due to the type of material and the angle of the machine. • In previous recoveries, machines had slipped along the centreline of the machine (ie Nose down, or ballast box down). • Initial meetings determined that traditional recovery methods were not able to be applied in this situation. • Initial Centre of Gravity checks determined that the machine required a restraint to be used to control movement. H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

  4. DRE20 Recovery • The Solution: • The recovery of DRE20 required the collaboration of experts in their field of Engineering. • The Recovery Method: • After the slip, the machine was stabilised and planning had begun on the method of recovery to meet the objectives. • Excavation to a level to allow DRE20 to sit level. • Attach winch frame and position dragline buckets as anchor points • Complete excavation under tub • Winch machine back to a level position to allow it to walk out under its own propel system • Repair machine as needed. H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

  5. DRE20 Recovery • Overall Recovery Plan H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

  6. DRE20 Recovery • The Righting Frame • Weighed 30 Tonnes and was made of 1200mm Welded Beams. • When load is applied, it moves the CoG toward the rear of the machine 1m for every 100t applied. H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

  7. DRE20 Recovery • Dragline Bucket and Winch Location H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

  8. DRE20 Recovery • Dragline Bucket Installation and Winch Location H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

  9. DRE20 Recovery • Ready to Winch H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

  10. DRE20 Recovery • Video – Initial Cut with Excavator H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

  11. DRE20 Recovery • Video – RC Dozer in action H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

  12. DRE20 Recovery • Video – RC Dozer in action H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

  13. DRE20 Recovery Video – RC Dozer in action H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

  14. DRE20 Recovery • Video – RC Dozer in action H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

  15. DRE20 Recovery • Video – RC UG Miner in Action H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

  16. DRE20 Recovery • Almost level H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

  17. DRE20 Recovery • Level!!!! H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

  18. DRE20 Recovery • Repairs post Levelling • LHS Boom Foot Stiffening between Clusters 1 and 2. • Lube Room Panel Beating • Crack repairs • Motor Armature cables replaced • Oil re-filled H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

  19. DRE20 Recovery • Thanks • To everyone involved, as the recovery would not have gone as smoothly without your input and help. H:\01 Administration\Presentations\State of Nations\2008\State of Nation – July 2008

More Related