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Welcome to Tenbusch Inc.

Design and Manufacture of Heavy Equipment

Tunneling and Pipe-Jacking Systems

Tenbusch Tunneling Shield on Job

At Tenbusch, we design and manufacture tunneling and pipe jacking systems.

  • Custom designed specifically for the customer's application,
  • For both liner plate and pipe-jacking applications,
  • Available as stand alone components, or delivered as a complete system.

We build all the equipment needed for a complete tunnel or pipe-jacking system:

Tenbusch Pipe-Jacking Equipment on Truck

Tunneling and Pipe-Jacking Systems

Shields

Tunneling shields are essential for basic hand tunneling - whether the tunneling process is a conventional pipe-jacking operation or consists of constructing a tunnel with liner plate. Tunneling and pipe-jacking shields provide several benefits to the overall tunneling process:

  • Protects the workers,
  • Allows for steering of the shield (mechanical or hydraulic powered),
  • Provides a necessary support base for "sand shelves" in wet and runny soils,
  • Provides a structural anchor for an excavator,
  • Provides a structural base for using a conveyor,
  • Allows for excavation operations in the front of the shield to progress while liner plate is assembled at the rear of the shield (for liner plate applications).

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Tunneling and Pipe-Jacking Systems

Excavators

We design and build custom excavators to improve material removal rates at the tunnel face.

  • Mechanized excavation at the face of the shield improves productivity, reducing overall operational costs of the project,
  • Tenbusch shield excavators are designed and built for maximum range of motion and are able to reach and excavate at any location on the face of the tunnel,
  • Our excavators can be transferred to other shields for other tunneling and pipe-jacking projects,
  • Tenbusch shield excavators are custom built according to customer's specifications and job applications.

We have a short video that shows the operation of a Tenbusch shield excavator:

Video IconVIDEO - Tenbusch Custom Tunneling Excavator

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Tunneling and Pipe-Jacking Systems

Conveyors

We design and build custom conveyors for tunneling and pipe-jacking operations.

  • We build heavy duty conveyors appropriate for tunneling applications,
  • Mechanized conveyors transport spoil from the floor of the tunnel face and convey it up and into the muck cart,
  • Our custom conveyors enhance spoil removal rates and improve productivity,
  • Tenbusch conveyors can be transferred to other shields for other tunneling or pipe-jacking projects,
  • Tenbusch conveyors are custom built according to the customer's specifications and job site conditions.

We have a short video that shows the operation of a Tenbusch shield conveyor:

Video IconVIDEO - Tenbusch Custom Tunneling Conveyor

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Tunneling and Pipe-Jacking Systems

Hydraulic Power Units (HPU's)

We build hydraulic power units that are designed for tunneling and pipe-jacking operations. Our hydraulic power units are designed to provide continuous and reliable power to your equipment. Typical features of our HPU's include:

  • Robust protective frame for rough tunneling job environments,
  • Electric motor or combustion engine power source,
  • Multiple pumps for main, auxiliary, and filtration circuits,
  • High capacity hydraulic reservoirs matched to underground equipment applications,
  • Controls to match your requirements and appropriate monitoring equipment and gauges.

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Tunneling and Pipe-Jacking Systems

Muck Cart and Track

Tenbusch Inc. designs and manufactures custom spoil removal equipment for conventional pipe-jacking and liner plate tunneling applications. Tenbusch track is designed with the following features:

  • Designed to be easily bolted together in the tunnel,
  • Customer specified track gauge and track lengths,
  • Sized for maximum strength and rigidity,
  • Kept as light as possible to make it easy for the workers to install.

The spoil bowl is separate from its cart so as to be easily removed and dumped. The bowl is designed to automatically dump when lifted by the appropriate lift point. Quality design, function, and manufacture.

More details are presented in the following brochure we have prepared:

PDFSpoil Removal Equipment Brochure

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Tunneling and Pipe-Jacking Systems

Underground Lubricant Systems

We design and manufacture custom lubrication systems for tunneling and pipe-jacking applications. Tenbusch lubricant system features:

  • Used to mix and pump underground lubricants such as bentonite and polymer,
  • Significantly reduces the friction load on the pipe surface - cutting power and thrust required for installation,
  • Our units are designed for maximum utility and ease of use,
  • Our lubricant systems are normally powered by an separate hydraulic power unit (HPU), although units are available with an integrated power source.

Tenbusch power units are designed and built specifically for eliminating job risk by reducing the overall thrust requirements for tunneling and pipe-jacking applications. Our units can be customized as needed.

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We have prepared a guide to help our customers select, mix, and apply lubricants for tunneling applications. Please review our guide as you consider applications where our underground lubricant systems can provide you an advantage:

PDFLubricants Used in Underground Construction

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Tunneling and Pipe-Jacking Systems

Intermediate Jacking Stations

We design and manufacture intermediate jacking stations for tunneling and pipe-jacking applications. Tenbusch intermediate jacking station (IJS) features:

  • One or more units may be used to reduce the overall thrust required for jacking pipe strings or culvert tunnels,
  • Tenbusch IJS units are designed with reusable cylinders and components,
  • Our intermediate jacking stations are designed for maximum utility and ease of use,
  • IJS units are built to our high quality standards.

Tenbusch IJS units are designed and built specifically for eliminating job risk by reducing the overall thrust requirements for tunneling and pipe-jacking applications. Our units can be customized as needed.

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Tunneling and Pipe-Jacking Systems

Backstops (Thrust Walls)

We design and manufacture backstops (thrust walls). Backstops provide a broad, portable, and easily transported mass which distributes thrust and minimizes deflection and drift of heavy equipment in tunneling and pipe-jacking operations.

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