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Welcome to Tenbusch Inc.

Design and Manufacture of Heavy Equipment

Custom Boring Equipment for Tunneling Applications

Tenbusch Boring Equipment for Tunneling Applications

We manufacture custom heavy equipment for utilizing exisiting auger boring equipment for tunneling and pipe-jacking applications. Heavy equipment that can be used for tunnel applications includes the following:

In addition, we offer the following equipment used in standard tunneling applications for use with a customers current auger boring equipmet:

Custom Boring Equipment for Tunneling Applications

Adapter Assemblies

At Tenbusch, Inc., we design and manufacture tunneling equipment that can be used with your existing boring equipment to complete tunneling applications. We can provide pipe adapters specifically suited to the make and model of the your boring machine and compatible with the pipe products to be installed, including:

  • Steel casing,
  • Re-inforced concrete pipe,
  • Pre-cast box-culverts.

Systems for adapting auger boring machines and equipment to perform tunneling applications typically include some or all of the following equipment:

  • Tunnel shields,
  • Excavators,
  • Conveyors,
  • Adapters for machine-to-pipe or machine-to-box-culvert,
  • Spoil removal equipment,
  • Backstops.

Please review our adapter assemblies and custom heavy equipment brochure:

PDFCustom Boring Equipment for Tunneling Applications

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Custom Boring Equipment for Tunneling Applications

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 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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Custom Boring Equipment for Tunneling Applications

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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Custom Boring Equipment for Tunneling Applications

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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Custom Boring Equipment for Tunneling Applications

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.

caretLearn more about Tenbusch Hydraulic Power Units (HPUs) ...

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Custom Boring Equipment for Tunneling Applications

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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Custom Boring Equipment for Tunneling Applications

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.

caretLearn more about Tenbusch Underground Lubricant Systems...

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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Custom Boring Equipment for Tunneling Applications

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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Custom Boring Equipment for Tunneling Applications

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.

caretLearn more about Tenbusch Backstops...

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Custom Boring Equipment for Tunneling Applications

Line-Up Bearing Assemblies for Guided Boring

The Line-Up Bearing Assembly is a tool used in Guided Boring / Pilot Tube Micro Tunneling. It bolts onto a large diameter cutting head, allowing the head and larger casing to follow precisely the line and grade of the previous installed smaller casing.

By using a bearing, the front of the assembly stays stationary, as the large head rotates.

Aspects of the Tenbusch Line-Up Bearing Assembly:

  • Rotary Bearing – Makes it possible for part of the assembly to remain stationary and mated inside the smaller casing while the larger cutting head rotates. This ensures the larger bore follows the line and grade of the smaller casing.
  • Seal – keeps debris and abrasives out of the bearing ensures proper mating and function of the bearing, crucial to keeping the larger diameter head and casing on precise line and grade.
  • Bolt On Assembly – design allows for minimal alteration of the existing large cutting head. Head can be used for intended use and cutting with minimal alteration after job is complete.

Line-Up Bearing Assemblies are custom built to the specifications of your job and larger cutting head. Low lead times – our products are designed and manufactured in Lewisville, TX, USA.

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