Micro Tunneling
Precision Micro Tunneling Services
United Al-Araz delivers state-of-the-art Micro Tunneling solutions for the Kingdom’s most complex underground infrastructure projects. Using remotely controlled Tunnel Boring Machines (MTBM), we install large-diameter pipes with laser-guided precision, even deep below the water table or under heavy urban loads.
As Saudi Arabia expands its “Smart City” and “Giga-Project” infrastructure, our micro tunneling expertise ensures that essential deep-level utilities are installed with zero impact on the surface environment.
Our Technical Capabilities
Remote-Controlled MTBM Operations: Utilizing advanced slurry-system Tunnel Boring Machines to navigate through diverse soil conditions—from soft silts to high-strength Saudi bedrock.
Laser-Guided Accuracy: Achieving millimeter-level precision for gravity-fed sewer systems and drainage lines where the slope (gradient) is critical.
Large Diameter Installations: Capability to install RCP (Reinforced Concrete Pipe), GRP (Glass Reinforced Plastic), and Steel pipes ranging from 600mm to 3000mm in diameter.
Deep Shaft Sinking: Expertise in constructing launch and reception shafts using secant piling or diaphragm wall techniques, even in congested urban areas.
Strategic Applications
Deep Sewerage & Stormwater: Essential for the massive drainage upgrades in cities like Jeddah and Riyadh.
Utility Culverts: Creating walkable underground tunnels for high-voltage power lines and district cooling networks.
Sea Outfalls: Constructing intake and outfall pipes for desalination plants along the Red Sea and Arabian Gulf coasts.
Major Crossings: Tunneling under “Live” assets such as existing Metro lines, highways, and high-speed rail tracks where surface settlement must be zero.
The United Al-Araz Advantage
10 Years of Geological Insight: We understand the unique soil and rock mechanics of the Arabian Peninsula, ensuring the right TBM selection for every project.
Environmental & Urban Sensitivity: Our methods eliminate the need for massive open-cut excavations, reducing dust, noise, and traffic congestion.
Safety & Risk Management: We employ real-time monitoring of ground pressure and surface settlement to ensure the total safety of surrounding structures.
Turnkey Delivery: From shaft construction to pipe jacking and final connection, we manage the entire lifecycle of the tunnel.
“Sub-Surface Excellence. United Al-Araz: Engineering the Deep Infrastructure that Sustains the Kingdom.”
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