(Mine, Quarry and Landfill Planning - Geotechnical Engineering - Risk Analysis)


John P Ashby

Main Page

Consulting Areas

Technical Papers


BSc. Honours (Geology), Chelsea College, London.

MSc. (Engineering, Rock Mechanics), Royal School of Mines, London

Diploma of Imperial College, London.

Thesis topic Toppling Sliding Mode of Rock Slope Failure:


The Map

- The first geological map William Smith 1817


  • Fellow (Retired) of the Geological Society of London;

  • Honorary Fellow of the NZ Institute of Quarrying;

  • Member of the Society of Explosive Engineers;

  • Member of the AIME;

  • Member of the New Zealand Geotechnical Society;

  • Affiliate of the International Society of Rock Mechanics.


The Disaster Aberfan 1967

a wakeup call for geotechnical engineering in mining

Employment History:

  • 19 years self employed consultant

  • 20 years in resource & engineering consulting and technical computing.

  • 3 years in research & development;

  • 7 years in mine operations;

  • Employed as geologist, engineer and research analyst


Questa New Mexico

Technical Expertise:

  • Site investigations, including: survey, topographic, geological and hydrological mapping;

  • Computer applications, including: mapping, ore body modelling, mine design, geostatistics, spreadsheet and risk analysis.

  • Surface hydrology and meteorology studies;

  • Hydraulic design;

  • Groundwater studies & pollutant transport modelling;

  • Slope stability analysis & design;

  • Underground excavation design;

  • Design of mine waste impoundments & dumps;

  • Project planning, supervision, funding & divestment;

  • Mine & quarry operations;

  • Drill & blast engineering;

  • Engineering costing;

  • Economic evaluation

  • Risk analysis.


  • Author of 12 technical Papers & over 400 technical reports;

  • Oral presentations at engineering and technical computing seminars & courses;

  • Presentation of @Risk Courses.

  • Link to Technical Papers