Published in June 2006 Australian Longwall Magazine

 

The engineering analytical approach lies somewhere between the more common empirical and more complex numerical. An engineering analytical approach identifies failure modes and can be used to specify roof and rib patterns in a range of ground conditions.

 

Consultants Ross Seedsman and Nick Gordon have experienced increasing demand of late in the subsidence side of the business as a result of increased regulatory controls in New South Wales with its Subsidence Management Plan and new underground projects in Queensland.

 

In subsidence modelling, Seedsman Geotechnics uses an influence function that is an efficient way of producing contour plans to predict subsidence. This format can be easily translated to environmental studies and by environmental consultants.

 

Look out on International Longwall News over the coming weeks for more individual profiles on survey participants.