Trenchless Technologies

  • Published in Tunnels & Tunnelling: Rules of Thumb – Slurry TBMs

    Published in Tunnels & Tunnelling: Rules of Thumb – Slurry TBMs

    Advancements in technology and the power to operate in a range of soft ground conditions has fueled the popularity of slurry tunnel boring machines

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  • Published in Tunnels & Tunnelling: Rules of Thumb – Horizontal Directional Drilling

    Published in Tunnels & Tunnelling: Rules of Thumb – Horizontal Directional Drilling

    As innovations evolve, so to will the uses and applications of HDD—here’s a look at the how-to’s, whys, limitations and risks in this growing field

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  • Published: Minimal Disturbance: Milestone Project Tests Capabilities of Microtunnelling

    Published: Minimal Disturbance: Milestone Project Tests Capabilities of Microtunnelling

    How to design for the largest diameter microtunnelling project in North America as featured in Trenchless Technology Canada

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  • Published in ENR: Drilling Down to Defend Against Drought in Atlanta

    Published in ENR: Drilling Down to Defend Against Drought in Atlanta

    Both a design and engineering feat, the Bellwood Quarry-turned-reservoir will serve as Atlanta's emergency water source in case of another drought

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  • Tunneling Rules of Thumb: Shaft Construction and Support Methods

    Tunneling Rules of Thumb: Shaft Construction and Support Methods

    In this Tunnels and Tunneling magazine article, Keivan Rafie discusses the two most important aspects of shaft design and construction: method of excavation and support

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  • Tunneling Rules of Thumb: Auger Boring

    Tunneling Rules of Thumb: Auger Boring

    In this Tunnels and Tunneling magazine article, Keivan Rafie explains the basics of auger boring along with the challenges and considerations for use

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  • Rules of Thumb: Summary of Trenchless Methods

    Rules of Thumb: Summary of Trenchless Methods

    In the February-March issue of Tunnels and Tunnelling magazine, Stantec’s Keivan Rafie discusses the typical uses of common trenchless methods

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  • Future of Trenchless

    Future of Trenchless

    Stantec’s Keivan Rafie recently hosted a roundtable discussion about the future of trenchless in Trenchless Technology Canada Magazine

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  • Published: Tunneling Rules of Thumb: Sequential Excavation Method Tunnelling

    Published: Tunneling Rules of Thumb: Sequential Excavation Method Tunnelling

    In this Tunnels and Tunneling magazine article, Keivan Rafie explains sequential excavation method tunneling: its basics, support requirements, and ground considerations

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  • Tunneling Rules of Thumb: Dry Shotcrete

    Tunneling Rules of Thumb: Dry Shotcrete

    In this Tunnels and Tunneling column, Stantec's Keivan Rafie compares and contrasts dry shotcrete with its wet counterpart, and reviews its operation and equipment.

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  • Tunneling Rules of Thumb: Microtunneling (Part 2)

    Tunneling Rules of Thumb: Microtunneling (Part 2)

    In the second of a two-part Tunnels and Tunneling series on microtunnelling, Keivan Rafie interviews Stantec’s Don Del Nero Don Del Nero

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  • Tunneling Rules of Thumb: Microtunneling (Part 1)

    Tunneling Rules of Thumb: Microtunneling (Part 1)

    Stantec's Keivan Rafie's first of a two-part Tunnels and Tunneling series on microtunneling

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  • How trenchless technologies help communities prepare for and recover from natural disasters

    How trenchless technologies help communities prepare for and recover from natural disasters

    Dr. Erez Allouche featured in Trenchless International Magazine article “Disaster Zone” (Page 34).

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  • Trenchless technologies, method 5: Pipe bursting

    Trenchless technologies, method 5: Pipe bursting

    Understanding when and how to use pipe bursting(Part 6 in a series)

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  • Pipe splitting and replacement of a corrugated steel pipe with submerged outlet

    Pipe splitting and replacement of a corrugated steel pipe with submerged outlet

    Replacing an underwater pipe at Canadian Nuclear Laboratories (see page 16).

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  • Trenchless technologies: 5 methods for non-disruptive utility installation

    Trenchless technologies: 5 methods for non-disruptive utility installation

    Going trenchless means installing utilities doesn’t have to include digging up lawns and tearing up streets (Part 1 in a series)

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  • Trenchless technologies, method 4: Pipe ramming

    Trenchless technologies, method 4: Pipe ramming

    Understanding when and how to use pipe ramming (Part 5 in a series)

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  • Trenchless technologies, method 3: Horizontal auger boring

    Trenchless technologies, method 3: Horizontal auger boring

    Understanding when and how to use horizontal auger boring (Part 4 in a series)

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  • Trenchless technologies, method 2: Microtunneling

    Trenchless technologies, method 2: Microtunneling

    Understanding when and how to use microtunneling (Part 3 in a series)

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  • Trenchless technologies, method 1: Horizontal directional drilling

    Trenchless technologies, method 1: Horizontal directional drilling

    Understanding how and when to use Horizontal Directional Drilling (Part 2 in a series)

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