Doug Hood Mining

Time-lapse video – quarry stockpile earthworks-6 weeks work in 60 seconds

May 31, 2019

Check out this time-lapse video taken by McConnell Dowell Constructors of Doug Hood Mining Ltd reshaping the overburden stockpile in the Gollans Bay Quarry below Evans Pass, Christchurch.

This stockpiled material was excavated during our construction of the rock-fall catchbench (as shown in other posts), hauled up Sumner Road using A40E dump-trucks, tipped off at the top of Evans Pass, and pushed into the Gollans Bay Quarry using a D65 dozer and L90 loader as applicable.

The stockpile was then reshaped using the D65 dozer and PC228 and EC360 excavators into a final design land-form. This was part of the geotechnical risk mitigation works for the repair of Sumner Road due to the 2010 and 2011 Christchurch earthquakes.

The PC228, being a zero swing (short counter-weight) excavator, was used for side-casting on the narrow top three benches.

The activity on the floor of the quarry prior to the reshaping of the stockpile was us removing the rip-rap and larger sized material for use by Christchurch City Council in coastal protection works and, with a percentage of the rock being scoria and conglomerate, architectural works and restoration.

A description of our Sumner Road contract is available here.

Thanks to McConnell Dowell Project Engineer Hudson Klein for permission to use this video.


 

Leave a Reply

Your email address will not be published. Required fields are marked *