Role
Principal Engineering Geologist
Email
Phone
Qualifications
Chartered Professional Engineer
Bachelor of Science (Hons) - Environmental and Engineering Geology
Registered Professional Natural Scientist
Affiliations
Chartered Professional Member - Engineering New Zealand (PEngGeol)
New Zealand Geotechnical Society (NZGS) - Member
South African Institute of Engineering Geologists (SAIEG) - Candidate Member
Joined DO
2018
Interests
Surfing, snowboarding, bodyboarding, lifesaving, and spending time with his wife, two kids and dogs.
Region
Christchurch
Contact Bjorn

Bjorn Raasch

A Principal Engineering Geologist and Chartered Professional in Christchurch, Bjorn is experienced in seismic engineering and geotechnical investigations for earth structures, ground improvements, and foundations for residential, commercial and industrial buildings.

He’s particularly interested in assessing and modelling the hazards associated with rockfall and debris flows. For several years, Bjorn was a member of the slope stability emergency panel, involved in call-out duties to evaluate potential risks of natural hazards to structures and people in Christchurch Port Hills and North Canterbury (Kaikoura). He has also assessed landslides and cliff collapse hazards from Pareora Gorge to the West Coast and Nelson, to the Port Hills suburbs of Christchurch.

Well-versed in 2D modelling and characterising these natural hazards, Bjorn has developed remediation plans with clients to provide long-term protective measures for future residential and infrastructure development.

He has worked in diverse geological conditions across New Zealand, Papua New Guinea, South Africa, Republic of Congo, Mozambique, Liberia and Botswana and more, giving him broad experience in tackling complex geotechnical challenges.