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Viewing Past A Collapsed Sewer Tunnel: How To Proceed With Caution

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When your construction company is called in to repair a collapsed sewer tunnel, you might be wondering just how to get started. Granted, you could clear away the rubble of the collapsed portion of the tunnel, but what if you clear some of the debris and you have another collapse or there is more serious damage ahead? Sit tight and send for a sewer camera, which can be used for a video sewer inspection just beyond the giant pile of rubble in front of you. If you have never had to do this before, here is how to proceed with caution.

While You Wait for the Camera to Arrive

You and your crew can build reinforcements for the part of the sewer tunnel that has not collapsed yet and is located a few feet in front of the rubble. You may see some cracks in the tunnel walls and some stress points here and there. Reinforce these areas so that the tunnel will hold up when you begin to remove pieces of the debris. Then you can sneak the articulating camera head through an opening in the debris without worrying if the rest of the tunnel is going to fall on your head or the heads of your crew.

Removing Only a Small Amount of the Debris

The idea is to get just enough of the debris removed so that you can sneak the articulating head of the sewer camera past the wreckage. Then you can slink the camera through and use the guiding controls to take images of the wall of debris from the opposite side and the walls just beyond the debris. These images will help you determine if you can safely remove the rest of the debris and reinforce the tunnel walls on the other side. It will also help you decide how to best support this dangerous area with the least number of workers until the tunnel can be fully repaired and/or rebuilt.

Coming at the Blockage from the Opposite Side

If one side of the collapsed tunnel is just too dangerous, and you can access the debris from the opposite side of the collapse, you may want to try to sneak the camera through from the opposite side. Supports may need to be built on both sides of the collapsed section when the tunnel is too shaky. If there is no light in the tunnel because the collapse killed the electricity, then you can use the LED light on the end of most sewer cameras to help you see in the tunnel while you take the images you need. Contact a company like Rapid Rooter Inc for more information.


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