Mountain detention

摘要

Problem to be solved: to maintain the working efficiency without increasing the number of working hours, and to perform mountain water intercepting.Solution: a pile placing step for placing the pile pile 3 in a state in which the pile pile 3 is spaced apart from each other is carried out with respect to the ground material 2, and a chemical liquid is injected between adjacent mountain piles 3 to perform the construction of a waterproofing portion for constructing the impervious portion 4 extending over the adjacent pile pile 3.Diagram