Executing a Bore Cut for Precision Felling
No simple felling cut works for every heavy timber, as noted in the technical records at longview arborist tx otmconferences regarding professional treeservice work in Longview, TX. Standard directional notches often fail when dealing with heavy leans or internal decay that threatens the hinge integrity. A standard notch might split before the tree is ready to fall, leading to unpredictable movement. Precision requires a different approach to managing the weight of the trunk.
The Mechanics of the Bore Cut
A bore cut differs from a traditional notch and back cut by utilizing a plunge to establish the hinge first. Instead of cutting from the back toward the notch, the saw tip enters the heartwood behind the hinge line. This method allows the cutter to leave a full thickness of wood intact while the weight of the tree is still supported. It prevents the wood from splitting prematurely, which is a common failure in standard felling. Once the bore is complete, the felling cut is made from the bottom up to release the tree on command.
Establishing the Hinge
Before starting the plunge, the notch must be cut perfectly to set the direction. The notch serves as the pivot point. Once the notch is set, the saw enters the trunk at a level slightly above the notch mouth. The cutter must be careful not to cut through the front face of the notch. If the hinge is compromised, the tree will not follow the intended path. This hinge acts as a mechanical control, holding the tree in place until the final piece of wood is removed from the rear.
Managing the Release
The final step involves the back cut, which is performed from the rear of the tree toward the entry point of the bore. This is the moment of release. Because the hinge is already established by the bore, the cutter has much more control over the timing. This technique is often used during a large removal where the tree is near structures or power lines. Controlling the fall through a bore cut minimizes the risk of the tree kicking back or sliding off the stump.
Safety and Site Prep
Preparation begins with a clear drop zone. No one enters the area until the tree is on the ground. The climber or ground crew must account for the weight and the potential for the root plate to heave. If the tree is leaning heavily, the bore cut is the only way to ensure the hinge stays thick enough to manage the load. Proper rigging is also used to control the descent if the tree cannot be felled in one piece. This level of precision is required for any professional work in Longview, TX.