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Welcome to Tenbusch Inc.

Design and Manufacture of Heavy Equipment

Box-Culvert Jacking Systems

Tenbusch Box-Culvert Jacking Shield and Adapter on Job

At Tenbusch, we design and manufacture box-culvert jacking systems.

  • Units are specifically designed for jacking box-culverts tunnels -
    • Facilitates an easy setup,
    • Provides for efficient operation,
    • Supplies required thrust for a large range of sizes,
  • Interchangeable push adapters allow a single machine to install a range of box-culvert sizes,
  • Provides control and monitoring of jacking forces,
  • All equipment is hydraulically powered.

We build all the equipment needed for a complete box-culvert jacking system:

We manufacture complete box-culvert jacking systems, as well as individual components.

We have prepared an informative video that shows the operation of a Tenbusch Box-Culvert Jacking System. Please review our video:

Video IconVIDEO - Tenbusch Box-Culvert Jacking System

Tenbusch Box-Culvert Jacking Shield and Adapter on Job

Box-Culvert Jacking Systems

Shields and Adapters

We design and manufacture custom box-culvert jacking shields and push adapters. Our box-culvert jacking shields and adapters provide several benefits:

  • Box-culvert shields are sized appropriately for each tunnel and protect the excavation at the tunnel face,
  • Box-culvert shields provide hydraulic powered steering and grade control of the jacking process,
  • Box-culvert shields can be equipped with "sand shelves" for extra protection for wet and runny soil conditions,
  • Interchangeable push adapters allow a single jacking machine to install a range of box-culvert sizes.

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Box-Culvert Jacking Systems

Jacking Frames

We design and build custom box-culvert jacking frames tunneling and pipe-jacking operations.

  • We build heavy duty jacking frames appropriate for tunneling applications,
  • Our box-culvert jacking frames apply a balanced load to the culvert push adapter,
  • Heavy duty and extra rigid culvert push adapter distributes the jacking load evenly to the box-culvert,
  • Push adapter guide plates center the culvert being pushed,
  • Control panel can be located on either side of track,
  • Special cylinder porting keeps hydraulic hoses out of way of machinery and operations.

A simple brochure detailing our Box-Culvert Jacking Frames is presented in the following PDF:

PDFTenbusch Box-Culvert Jacking Frame

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Box-Culvert 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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Box-Culvert 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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Box-Culvert Jacking Systems

Intermediate Jacking Stations

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

  • One or more units may be used to reduce the overall thrust required for jacking 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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Box-Culvert 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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