Geotechnical Engineering

Residential Soil Testing & Site Classification to understand the Ground Beneath Your Project

At GHA Engineers, we provide professional geotechnical engineering services that deliver the critical ground information required for safe, compliant, and cost-effective development. Our experienced geotechnical team works with homeowners, builders, developers, councils, and contractors across Melbourne and Victoria to assess site conditions and provide practical recommendations that support successful project outcomes.

From residential developments and building extensions to infrastructure and civil construction projects, we provide reliable site investigations, soil testing, surveying, and engineering advice to help minimise risk and ensure foundations are designed with confidence.

Geotechnical Investigations

Feature, Contour & Level Surveys

Our Geotechnical Engineering Services

Before construction begins, it's important to understand how the ground beneath your property may behave over time.

Our geotechnical engineers assess your site based on soil conditions, ground movement potential, and foundation requirements, providing site classifications including:

• Class A

• Class M

• Class H1

• Class H2

• Class E

• Class P

Our reports help designers and builders select the appropriate footing and slab systems while ensuring compliance with Australian Standards.

Our geotechnical investigations provide valuable information about ground conditions and potential construction constraints before development begins.

We undertake:

• Soil sampling

• Subsurface investigations

• Foundation assessments

• Ground condition evaluations

• Site suitability assessments

We provide a range of geotechnical testing services to determine the physical and engineering properties of soil, including:

• Particle Size Distribution (Sieve & Hydrometer Analysis)

• Atterberg Limits (Plasticity & Liquid Limits)

• Standard and Modified Proctor Compaction Tests

• Field Density Testing (Nuclear Density Gauge)

• California Bearing Ratio (CBR)

• Dynamic Cone Penetration (DCP)

• Shrink-Swell Index Testing

• Soil Particle Density Testing

• Moisture Content Testing

• Soil Sampling and Laboratory Analysis

A Feature Survey is typically required before commencing the planning and design of a new development, renovation, extension, subdivision, or infrastructure project.

Our survey team prepares detailed drawings showing:

• Existing buildings and structures

• Property boundaries

• Ground levels (AHD)

• Contours and topography

• Trees and vegetation

• Services and utility locations

• Relevant adjoining property features

Accurate survey information provides the foundation for effective planning, engineering design, council approvals, and construction.

Residential Soil Testing & Site Classification

Soil Testing & Laboratory Services

A Feature Survey is typically required before commencing the planning and design of a new development, renovation, extension, subdivision, or infrastructure project.

Our survey team prepares detailed drawings showing:

• Existing buildings and structures

• Property boundaries

• Ground levels (AHD)

• Contours and topography

• Trees and vegetation

• Services and utility locations

• Relevant adjoining property features

Accurate survey information provides the foundation for effective planning, engineering design, council approvals, and construction.