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Table 3 Drilling parameter (Experiment 3)

From: Safe tree felling using expansion agent

 

Cut

Position of holes

Log I

About 2/3 of the log

20 (mm) from the cut

Log J

10 (mm) beyond the hole

Center

Log K

10 (mm) beyond the hole

Center and 50 (mm) left from the first hole

Log L

10 (mm) beyond the hole

50 (mm) from the edges

Log M

10 (mm) beyond the hole

60 and 110 (mm) from the right edge