Aluminum Panel Shield and Steel Framed Aluminum Panel Shield Provide Lightweight Protective System
Click on picture for larger versionCoble Trench Safety shoring specialist John Knighten plays a key role in assisting contractor with shoring design.

The Specifics

The contractor was installing new chilled water lines for an expansion.  The excavation would be approximately 3 feet wide, 12 feet in length and 7 feet deep.
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The Scenario
The contractor had planned to do the digging with a backhoe, thus limiting the weight of the system severely.  While needing lightweight boxes, the contractor also needed the system to be long enough to accommodate longer joints of pipe.  Besides the equipment limitations, the project presented minimal additional challenges that would need to be addressed.  As the project became closer, the contractor ultimately elected to use an excavator on the project, however, remained with the system as designed for use by a backhoe. 


The Solution
John Knighten discussed the project with the contractor on relatively short notice and helped to work with the contractor's limitations when suggesting shoring alternatives.  Since weight was an issue, the system would need to be composed of aluminum, while the length would require more of a conventional trench box.  After reviewing the conditions as well as branch inventory for the urgent need, a smooth wall aluminum panel shield and a steel framed aluminum panel shield would solve the shoring needs for the project.

After narrowing the system down to what meet the jobsite restrictions and could be delivered quickly, John expedited the delivery process so that the boxes would be available when needed.  The customer was very satisfied with the response rate of Coble Trench Safety and the ability to address its need for a shoring system that would meet the project needs and could be supplied quickly. 

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