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BLOC Contractors

Geotechnical Solutions

BLOC Contractors specializes in geotechnical services, including Pipejacking, Directional Drilling, Lateral Support, and Sheet Piling.

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Geotechnical Techniques
Machines stabilizing excavation site and protecting structures from water damage.

Techniques

Geotechnical Techniques:

We offer a range of techniques for underground infrastructure and lateral support tailored to your project needs.

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Bloc Contractors' impressive concrete spraying lateral support project with a great looking finish.

Latest Projects

Track Record:

We’ve successfully completed various projects, known for our reliability and timely delivery.

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20+ Years Providing Reliable Geotechnical Solutions

We’ve been in the business since 2002, making us a trusted partner in construction across Southern Africa.

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Geotechnical Solutions

With over two decades of experience, we have evolved into a fully-fledged geotechnical company, renowned for delivering solutions utilizing various techniques such as Pipejacking, Directional Drilling, Lateral Support, Sheet Piling, and more.

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Slope Stabilization

Slope stabilization ensures the stability and safety of slopes in steep terrain, unstable soil, and areas with heavy rainfall or erosion, using methods like soil nailing, shotcrete, and rockfall protection.
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Excavation Support

Excavation support ensures stability and safety in construction sites with deep excavations, unstable soil, or nearby structures. Key methods include shoring, sheet piling, and soil nailing.
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Pipe Replacement

Efficient pipe replacement with minimal disruption, using advanced techniques like pipe and culvert jacking, ensures durable and reliable installations for various industries.
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Geotechnical Techniques

Explore our comprehensive range of geotechnical techniques designed to address various construction challenges. From slope stabilization and trenchless drilling to deep foundations and earth retention, our advanced methods ensure project success and structural integrity.

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Foundation Techniques

Effective foundation techniques ensure structural stability and load distribution. Used in various construction projects, these methods enhance soil strength and provide reliable support for buildings, bridges, and other infrastructure.
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Earth Retention Techniques

Earth retention techniques, like soil nailing, shoring, and sheet piling, provide stability and support for excavations and slopes. These methods ensure safe construction environments and long-term structural integrity.
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Trenchless Tunneling and Drilling

Trenchless technologies are widely applied in repairing pipes, installing new pipelines, and other underground utilities, making them ideal for urban areas and sensitive landscapes.
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Latest Projects

Explore our diverse portfolio of completed projects, demonstrating our expertise in delivering high-quality geotechnical solutions. From infrastructure development to complex construction challenges, see how we provide effective and reliable results.

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Pipe Jacking Sequence

Pipe Replacement

  • Kwa-Zulu Natal, South Africa

Replacement of collapsed Armco pipe using Pipe Jacking along the Karkloof Road

The existing Armco pipe had deteriorated to the point of complete failure, leaving little support for the road above. Using a trenchless pipe jacking method, BLOC installed a new concrete pipe without disturbing the road surface, which allowed for continued road functionality during the process.
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N3 Pipe Replacement

Pipe Replacement

  • Kwa-Zulu Natal, South Africa

Replacement of collapsed Armco pipe using Pipe Jacking along the N3 Near Midmar Dam

The project took place during the wettest time of year, and the site was heavily waterlogged. To manage the conditions, the team had to pump water out of the working area continuously while maintaining safety and accuracy throughout the installation process.
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Trial Assembly

Culvert Jacking

  • South Africa

Assembly and installation of large post-tensioned culverts

Due to the size and weight of each culvert, BLOC proposed a cast-in-sections approach. Each unit was manufactured in manageable segments to simplify transport to site. Once delivered, the culverts are assembled and post-tensioned on-site before being jacked into position.
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Joburg

Durban

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