| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pile pull-out method capable of pulling out a structure supporting pile implant in the ground without damaging the ground.SOLUTION: The pile pull-out method is a method to pull out a structure supporting pile 1 from the ground. The pile pull-out method includes the steps of: forming drill-holes 40 enclosing the pile 1 by using an auger drill 30; inserting a tubular pull-out jig 20 into the ground with a force while rotating the pile 1 along a vertical direction of the pile 1 and enclosing the pile 1; and pulling out the pile 1 together with the pull-out jig 20 in a state where the pile 1 is held by the pull-out jig 20. The drill-holes 40 are formed so that the front end of the drill-holes 40 reaches the vicinity of the front end of the pile 1.</p> |
