Performing A Bore
The purpose of the bore is to get from point A to point B under the obstruction. First the operator surveys the area and the obstacle(road, sidewalk, driveway). Utility locates must be present for any underground work, the path most clear of utilities is chosen to send the tool through. The first hole is now dug on one side of the obstacle. This hole must be large enough to fit the tool and the operator in it so they can aim the tool. The hole also must be deep enough that as the tool compacts the ground the surface remains undisturbed. The depth of the starting bore pit depends on the type on soil that is being worked in and how well it compacts. The operator aims the tool to the desired exit point and allows it to perform its function creating a bore hole under the ground without disturbing the surface. The tool is tracked by the operator who feels the tool pounding and can approximate the tools location under the ground. The operator also monitors the surface to make sure that it is undisturbed. As the tool nears the exit point it is slowed down and an exit pit is dug to locate both the tool and the bore. As the tool enters the exit pit the operator chooses to either dig up the tool to retrieve it or reverses the tool back into the first bore pit to retrieve it. Now between the two pits is a completed bore under the obstacle which can be used to run the product.
Read more about this topic: Underground Pneumatic Boring
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