High Energy Impact Compaction

What is High Energy Impact Compaction?

High Energy Impact Compaction (HEIC) – as the name suggests – is a compaction technique that transmits rapid, high-energy impact in order to strengthen base materials and lay firm foundations for development.
The technique can be far more efficient and productive than conventional compaction methods – at around a quarter of the cost, and 50% quicker than traditional methods.
A large, yellow agricultural tractor with black tracks is attached to a compaction roller. The machinery is set on a white background.

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How HEIC compares to conventional compaction methods

Diagram comparing Landpac High Energy Impact Compaction (HEIC) equipment with conventional vibratory compaction methods. HEIC showcases various impact compactors with cone-shaped influence ranging from 1-5m depth, while conventional compactor equipment influences only 300-500mm depth.
Infographic comparing high energy impact compaction (HEIC) equipment with conventional vibratory compaction. Illustrates depth of influence, showing HEIC depth ranging from 1 to 5 meters and a tractor representing conventional equipment method at 300–500 mm.

HEIC can make light work of land that other compaction methods may not be able to reach – including reclaimed or otherwise inaccessible land – opening up new development opportunities.

The technique also enables compaction without disturbing what’s underneath. This is particularly useful in adverse soil conditions that may pose a risk to people or the surrounding environment when compacted.

Benefits of HEIC

Soil 
Stabilisation

  • Improves load-bearing capacity and stability of soil, reducing the risk of uneven settling over time.
  • Reduces the need for excessive soil excavation and replacement, resulting in reduced material consumption.

Construction Efficiency

  • Fast, efficient compaction of large areas.
  • Helps to expedite project schedules, reducing construction time and related resource consumption.
  • Lower energy usage, reduced equipment emissions, and minimal disruption to the surrounding environment.

Enhanced Structural Performance

  • Creates a denser soil matrix, improving the overall structural integrity of the built environment.
  • Compacted soil exhibits higher bearing capacity, reduced settlement, and increased resistance to erosion.
  • More resilient infrastructure, reducing the need for frequent repairs or replacements.

Mitigation of Soil-related Risks

  • Helps distribute loads more uniformly and reduces the likelihood of uneven settling.
  • Densifies soil in areas prone to liquification during seismic events, improving resistance to liquification-induced damage.

Sustainable 
Land Use

  • Allows for development in areas that would otherwise be unsuitable or require extensive soil remediation.
  • Helps preserve natural habitats, reducing the need for land conversion.

Common uses of HEIC

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Diagram of a mechanism with red segmented sections. Each segment is labeled with terms related to groundwork and construction, such as "Compaction," "High Energy Impact," and "Landfills." Central circle features tools and components.

Applications of HEIC

Land reclamation

Transforming water bodies into usable land areas such as container terminals.

Deleterious material

For sites containing hazardous material such as Acid Sulphate Soils (ASS), asbestos etc.

Mining & power infrastructure

Includes tailings dams, haul roads, and rehabilitation. Also used in the power industry, including wind farm power generation track lines and lay-down areas.

Civil infrastructure & development

Includes residential sub-divisions, airports, roads and ports.

Commercial & industrial

Includes business, production, commerce, manufacturing and trade services

Landfills

Creating extra volume and sealing from noxious gases.

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A construction vehicle is working on a sandy area near the water, with a large roller attached. In the background, a red airplane is taking off or landing. The sky is partly cloudy.

In-situ Compaction

In-situ compaction refers to the improvement and stabilisation of existing base materials onsite, rather than importing external soil for the job. This can be more cost-effective and cause less disturbance to the surrounding environment.
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Frequently Asked Questions

Landpac specialises in providing and implementing ground improvement solutions on compressible unstable sub-grades with the use of Impact Compaction. Over the 25 years since our inception, Landpac Australia has delivered ground improvement solutions and provided impact compaction services throughout Australia and the Asia-Pacific region. 

When planning your project, it is best to consult with the team at Landpac prior to submitting your tender. That way, cost savings can be factored into your budget for the project.

While we’re based in Australia and Singapore, we operate across the Asia-Pacific region.

Over the 25 years since our inception, Landpac Australia has delivered ground improvement solutions and provided impact compaction services throughout Australia and the Asia-Pacific region. The Landpac group has operations in Australia, Singapore, United Kingdom, South Africa, Asia and the Middle East. 

Check out some of our projects here.

High Energy Impact Compaction (HEIC) is a compaction technique that transmits rapid, high-energy impact in order to strengthen base materials and lay firm foundations for development.

HEIC can be far more efficient than conventional compaction methods – around a fraction of the cost, and significantly quicker than traditional methods. Our specialists can advise if HEIC is the right solution for your site.

High-energy impact compaction offers more efficient compaction for specific soil types, especially in larger construction projects. Regular compaction methods, while generally slower, are more versatile and can be used for a wider variety of soil types and situations. The choice between the two methods depends on project-specific factors and goals.

Impact compaction might be necessary for your site if you:

    • Have loose, granular soil with poor compaction properties
    • Need to enhance load-bearing capacity for structures
    • Want to mitigate settlement issue
    • Find it more cost-effective compared to other methods

 

Consulting a geotechnical engineer is crucial to make an informed decision based on soil tests, site conditions, and project requirements.

Landpac trades as Landpac Technologies Pty Ltd and is a wholly owned subsidiary of Conplant.

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