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Geotechnical Engineering

Getting the site right is one thing, but you’ll need the right geotechnical numbers too.


Building from the ground up

Our ethos is the cross-pollination of science and engineering. Our team undertakes geotechnical site assessments for projects of all sizes to obtain a detailed understanding of the site’s surface and subsurface variability. With LDE, you have ground engineering you can rely on and is backed by Chartered Professional Engineers specialising in geotechnical engineering.

Foundations are our forte

We’ll work out the best solution for your project and its underlying ground conditions and constraints, from shallow raft foundations to deep, laterally loaded piles.

Practical geotechnical solutions

Providing practical solutions is one of our core principles. Your site might be plagued with geotechnical issues, but we’ll find a way to make it work at the lowest possible cost. Our geotechnical engineering team have the skills and technical expertise to get the best outcomes and minimise risk.

Our expertise includes:

  • Geotechnical investigations
  • Optimum site location
  • Landslides and slip assessment, stabilisation, and mitigation
  • Liquefaction assessment and minimisation
  • Lateral spreading assessment and deformation mitigation
  • Understanding your ground settlement risk
  • Preload fill design to minimise settlement
  • Designing and certifying your earthworks
  • Geotechnical parameter analysis
  • Bearing capacity reports
  • Shallow foundations
  • Deep pile foundations
  • TC2 and TC3 foundation design
  • Tsunami resilient foundation and building design
  • Cut and fill slope gradient design
  • Slope retention and retaining walls
  • Palisade wall/soldier pile wall design
  • Ground improvement design
  • Stone columns, rammed aggregate piers, cement columns
  • Lime stabilisation

Project Experience

  • Mahia Wastewater Treatment Ponds
    Mahia Wastewater Treatment Ponds
    Geotechnical Engineering
  • Hihitahi Rise Landslide
    Hihitahi Rise Landslide
    Geotechnical Engineering
  • DOC Visitor Centre
    DOC Visitor Centre
    Geotechnical Engineering
  • Cool Storage Expansion
    Cool Storage Expansion
    Geotechnical Engineering
  • Gisborne District Courthouse Expansion
    Gisborne District Courthouse Expansion
    Geotechnical Engineering
  • Sang Dam Geotechnical Investigations
    Sang Dam Geotechnical Investigations
    Geotechnical Engineering
  • Edgewater Dams Geotechnical Assessment
    Edgewater Dams Geotechnical Assessment
    Geotechnical Engineering
  • Crosses Road Bridge
    Crosses Road Bridge
    Geotechnical Engineering
  • Donald Road Bridge
    Donald Road Bridge
    Geotechnical Engineering
  • Kaeo Biofiltration Plant Geotechnical Investigation
    Kaeo Biofiltration Plant Geotechnical Investigation
    Geotechnical Engineering
  • Tolaga Bay Area School Redevelopment
    Tolaga Bay Area School Redevelopment
    Geotechnical Engineering
  • St Mary’s Catholic School
    St Mary’s Catholic School
    Geotechnical Engineering
  • TKKM O Nga Uri A Maui School
    TKKM O Nga Uri A Maui School
    Geotechnical Engineering
  • Beetham Village
    Beetham Village
    Geotechnical Engineering
  • New Tkkm O Ngati Kahungunu School
    New Tkkm O Ngati Kahungunu School
    Geotechnical Engineering
  • Bentonite Mine Material Quality Assessment
    Bentonite Mine Material Quality Assessment
    Geotechnical Engineering
  • Heritage Building Geotechnical Investigations
    Heritage Building Geotechnical Investigations
    Geotechnical Engineering
  • Commercial Building Investigations
    Commercial Building Investigations
    Geotechnical Engineering
  • New Kawakawa Hospital
    New Kawakawa Hospital
    Geotechnical Engineering
  • Waipaoa River Stopbank Assessment
    Waipaoa River Stopbank Assessment
    Geotechnical Engineering
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Mahia Wastewater Treatment Ponds
Location: Mahia Beach, Mahia Peninsula
Client: Wairoa District Council

The sewerage ponds were surrounded by unstable hillsides, while underneath was soft, compressible ground. This site required creative solutions. We carried out a comprehensive geotechnical investigation for the ponds, making appropriate recommendations for the site.

 

Categories :
Geotechnical Engineering
Hihitahi Rise Landslide
Location: Bay of Islands
Client: Far North District Council

Geotechnical investigation and stabilisation of a large scale, deep-seated suburban landslide.

Categories :
Geotechnical Engineering
DOC Visitor Centre
Location: Waikaremoana
Client: Department of Conservation

Geotechnical investigation for a challenging site. Variable ground conditions, compressible soils, slope instability risks, and a high potential for seismic liquefaction and lateral spread.

Categories :
Geotechnical Engineering
Cool Storage Expansion
Location: 93 Waioka Road, Opotiki
Client: OPAC

Detailed geotechnical investigation focusing on liquefaction risk and consolidation settlement risk under heavy building loads, including foundation design solutions.

Categories :
Geotechnical Engineering
Gisborne District Courthouse Expansion
Location: Customhouse Street, Gisborne
Client: Ministry of Justice

Natural Hazards and detailed building-specific geotechnical investigations for an IL3 structure, including foundation design recommendations.

Categories :
Geotechnical Engineering
Sang Dam Geotechnical Investigations
Location: Waingaki, Gisborne
Client: Gisborne District Council

Geotechnical investigation of a 15m high earth dam affected by land movement and underlain with an active fault.

Categories :
Geotechnical Engineering
Edgewater Dams Geotechnical Assessment
Location: Whatuwhiwhi, Northland
Client: CPG

Geotechnical assessment regarding the stability of two 5m high earth dams.

Categories :
Geotechnical Engineering
Crosses Road Bridge
Location: Havelock North
Client: MWH NZ Ltd

Geotechnical investigations for bridge extension. Liquefaction and lateral spreading were significant constraints to overcome.

Categories :
Geotechnical Engineering
Donald Road Bridge
Location: Kaitaia
Client: Far North District Council

Geotechnical investigations for new bridge foundations requiring deep piles.

Categories :
Geotechnical Engineering
Kaeo Biofiltration Plant Geotechnical Investigation
Location: Kaeo
Client: Far North District Council

Geotechnical investigation for biofiltration plant underlain with variable ground. The determination of differential settlement was a critical component.

Categories :
Geotechnical Engineering
Tolaga Bay Area School Redevelopment
Location: Tolaga Bay
Client: Ministry of Education / Babbage Architecture

Geotechnical Investigations for an extensive redevelopment of school underlain by liquefiable ground.

Categories :
Geotechnical Engineering
St Mary’s Catholic School
Location: Campion Road, Gisborne
Client: The Roman Catholic Bishop of Hamilton

Geotechnical investigations for a new primary school, college gym, and college classrooms.

Categories :
Geotechnical Engineering
TKKM O Nga Uri A Maui School
Location: 349 Nelson Road, Gisborne
Client: Ministry of Education / TKKM O Nga Uri A Maui School

Geotechnical Investigation for a co-educational Kura Kaupapa Maori School.

Categories :
Geotechnical Engineering
Beetham Village
Location: 8 Beetham Ave, Gisborne
Client: Beetham Village Ltd

Geotechnical investigations for the overall development of a hospital, swimming pool, and numerous townhouses.

Categories :
Geotechnical Engineering
New Tkkm O Ngati Kahungunu School
Location: 41 Kitchener Street, Wairoa
Client: Ministry of Education

Geotechnical Investigations for this award-winning school.

Categories :
Geotechnical Engineering
Bentonite Mine Material Quality Assessment
Location: Kanakanaia Road, Gisborne
Client: Bentonite NZ

Detailed analysis of the chemical and mechanical properties of bentonite and its use for effluent pond lining, agricultural, and drilling products.

Categories :
Geotechnical Engineering
Heritage Building Geotechnical Investigations
Location: Christchurch
Client: Christchurch City Council (CCC)

Geotechnical investigations for numerous CCC heritage buildings. These included Canterbury Provincial Chambers, Edmond Band Rotunda, Mona Vale, Riccarton House, and Rose Historic Chapel.

Categories :
Geotechnical Engineering
Commercial Building Investigations

 

Location: Christchurch CBD
Client: Various

Geotechnical Investigations for numerous commercial buildings underlain by liquefiable ground.

Categories :
Geotechnical Engineering
New Kawakawa Hospital
Location: Kawakawa
Client: Northland District Health Board/Ngati Hine Health Trust

Geotechnical investigations for a new 40m 60m hospital building.

Categories :
Geotechnical Engineering
Waipaoa River Stopbank Assessment
Location: Poverty Bay Flats
Client: Hawkes Bay Regional Council

Geotechnical investigations, stability assessment and liquefaction-induced damage assessment of 50km of stopbanks.

Categories :
Geotechnical Engineering
Ready to discuss your project? Talk to us on 0800 397 566 or contact your local office
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