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Box-Culvert Jacking Systems


Tenbusch Inc. designs and manufactures custom box-culvert jacking components and systems. From desktop conception to the heavy duty steel machinery delivered at the jobsite, Tenbusch produces high quality equipment. Tenbusch can supply either individual components or a complete integrated box-culvert jacking system based on customer needs and requirements.

Box Culvert Tunnel System

Box Culvert Tunneling Systems

Tenbusch Inc. manufactures custom tunneling shields, push adapters, and jacking frames for installing box-culverts. Robust, heavy duty box-culvert tunneling systems include the following components:

Individual systems can be custom designed for multiple box culvert sizes and shapes, and with variable thrust ranges.

Additional equipment improves the tunneling process and enhance efficientcy:

For more information, or to learn how our box-culverts jacking systems can help you achieve your objectives, please contact us at Tenbusch Inc.


Box-Culvert Jacking System Components


Hydraulic Power Units for Underground Construction Applications

Hydrulic Power Unit

Hydraulic Power Units

Tenbusch Inc. designs and manufactures custom hydraulic power units (HPU's) for underground construction applications. Tenbusch HPU's are integral to the pipe jacking and tunneling processes, providing the following:

Tenbusch Inc. will work with your company to build the optimum hydraulic power unit that satisfies your most critical and demanding underground construction hydraulic power applications. (More information ...)


Backstops (Thrust Walls)

Backstops (Thrust Walls)

Backstops are a composite structure of steel and concrete designed to provide a "thrust wall" for underground construction applications. Backstops are ideally suited for jacking operations where they provide the following functions:

Another advantage of the backstop is that it is portable and easily transported from job to job. (More information ...)


Tunneling and Pipe Jacking Shield Excavators

Shield Excavator

Shield Excavators

Tenbusch Inc. designs and fabricates custom tunneling and pipe jacking shield excavators. Mechanized excavation at the face of the shield greatly improves productivity, which can reduce the overall cost of the tunneling project. Tunnel 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. As with all Tenbusch equipment, shield excavators are custom built according to the customer's specifications and job site conditions.

An added benefit of purchasing a shield excavator is that the excavator can be transferred to other shields for additional tunneling projects. (View video ...)


Tunneling and Pipe Jacking Shield Conveyors

Shield Conveyor

Shield Conveyors

Tenbusch Inc. designs and fabricates custom tunneling and pipe jacking shield conveyors. A mechanized conveyor within the shield transports spoil from the floor of the tunnel face and conveys it up and into the muck cart. Conveyors improve productivity, and can reduce the overall cost of the tunneling project. Shield conveyors are custom built for the customer's specific requirements and job site conditions.

An added benefit of purchasing a shield conveyor is that the conveyor can be transferred to other shields for additional tunneling projects. (View video ...)


Spoil (Muck) Cart and Track

Muck Cart and Track

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:

A wheeled conveyor separate from the spoil bowl allows the bowl to be easily removed and dumped outside of the work pit. The bowl is designed to automatically dump when lifted by the appropriate hinged liftpoint only. A transport rack is provided for maximum utility. Quality design, function, and manufacture.


Bentonite/Polymer Lubrication Systems

Lubrication System

Underground Lubrication Systems

Tenbusch Inc. designs and manufactures custom lubrication systems for mixing and pumping underground lubricants, such as bentonite and polymer solutions. Lubricants reduce the friction load on the shield and/or pipe surfaces. Overall power and thrust requirements are diminished as the friction loads are reduced. The lubricant systems are designed for maximum utility and ease of use and can be customized as needed. Tenbusch lubricant systems are designed to work off the secondary circuit of Tenbusch hydraulic power units. (More information ...)