Geotechnical Engineering

Understanding the Ground.
Engineering with Confidence.

At GDC Group, our geotechnical engineering services help clients understand ground conditions, manage geotechnical risks and make informed decisions throughout the life of a project.

Our Services
Geotechnical Engineering

Our Services

Our Geotechnical Engineering Services

Multidisciplinary Expertise

Engineering, surveying and planning expertise within one coordinated team.

Practical Solutions

Practical, cost-effective advice tailored to each project and site.

Integrated Approach

Disciplines coordinated early to reduce conflicts and improve outcomes.

Built for New Zealand

Aligned with New Zealand standards, conditions and communities.

About this service

Geotechnical Engineering

Ground conditions can have a significant impact on the design, construction and long-term performance of buildings, infrastructure and developments. Our team provides practical geotechnical investigation, assessment, testing and engineering advice to help ensure projects are designed and constructed on a sound foundation.

We work alongside property developers, councils, architects, engineers, contractors and private clients to provide practical solutions that are technically robust, cost-effective and appropriate for the site.

Who we work with

  • Property developers
  • Councils
  • Architects
  • Engineers
  • Contractors
  • Private clients
Geotechnical Engineering
GDCGDC Group · Geotechnical Engineering

What we do

Our Geotechnical Engineering Services

Site Investigations & Geotechnical Assessments

Understanding the ground conditions early can help identify potential constraints and reduce unexpected costs during construction.

GDC Group undertakes geotechnical inspections, site assessments and testing to establish ground conditions and provide engineering recommendations appropriate to the proposed development.

Our services include:

  • Geotechnical site investigations
  • Ground condition assessments
  • Geotechnical inspections and site observations
  • Building platform assessments
  • Foundation assessments
  • Earthworks assessments
  • Groundwater and seepage assessments
  • Geotechnical reporting
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  • Construction monitoring and verification

Foundation & Building Platform Assessments

The performance of a building depends on the suitability and stability of the ground beneath it.

GDC Group provides geotechnical engineering advice for foundations and building platforms, helping determine whether proposed foundation systems are appropriate for the site's ground conditions.

Our services include:

  • Building platform subgrade inspections
  • Foundation excavation inspections
  • Shallow foundation and strip footing assessments
  • Bored pile and drilled foundation assessments
  • Foundation recommendations
  • Dynamic foundation design parameters
  • Pile load test analysis
  • Ground improvement recommendations

Earthworks & Construction Monitoring

Effective earthworks management is essential to achieving stable and compliant building platforms, roads and infrastructure.

Our team can provide geotechnical monitoring and inspections throughout construction to verify that ground conditions and earthworks are consistent with the design requirements.

Our services include:

  • Earthworks monitoring
  • Fill placement inspections
  • Compaction assessments
  • Hard-fill density observations
  • Floor slab subgrade assessments
  • Construction verification
  • Road and pavement testing
  • CBR testing
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  • Building platform certification support

Slope Stability & Ground Risk

New Zealand's varied terrain means that slope stability and ground conditions can be important considerations for many developments.

GDC Group provides geotechnical assessments to identify potential ground movement and stability risks and develop practical solutions for managing those risks.

Our services include:

  • Slope stability assessments
  • Ground movement assessments
  • Cut and fill slope assessments
  • Excavation stability assessments
  • Retaining and excavation support advice
  • Groundwater and seepage assessments
  • Remediation of problematic ground conditions
  • Slope stabilisation recommendations

Ground Improvement & Remediation

Where ground conditions present challenges, there are often practical engineering solutions available.

GDC Group can assess problematic ground conditions and develop appropriate ground improvement or remediation strategies to support safe and efficient construction.

Our services include:

  • Problematic soil assessment
  • Ground improvement design
  • Site improvement systems
  • Foundation improvement solutions
  • Settlement considerations
  • Remediation strategies
  • Ground stabilisation
  • Geotechnical construction advice
Geotechnical Engineering for Development
GDCGDC Group · Geotechnical Engineering

Geotechnical Engineering for Development

Geotechnical considerations can influence everything from site feasibility and subdivision through to foundation design, earthworks and construction.

By engaging GDC Group early, clients can better understand potential ground-related constraints and incorporate appropriate engineering solutions into the project from the outset.

We provide geotechnical advice for:

  • Residential developments
  • Commercial developments
  • Industrial developments
  • Subdivisions
  • Infrastructure projects
  • Roads and accessways
  • Retaining structures
  • Building projects
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  • Earthworks
  • Civil construction

GDC Group

Practical Advice. Strong Foundations.

At GDC Group, we believe geotechnical engineering should provide more than a technical report. It should give our clients a clear understanding of the ground conditions, the associated risks and the practical options available.

Our approach combines technical engineering expertise, site experience and practical project knowledge to help deliver solutions that work in the real world.

From initial site investigation through to construction monitoring and geotechnical verification, GDC Group provides the expertise you need to build with confidence.

Planning a project? Talk to GDC Group about your geotechnical requirements.

Contact Our Team