PUMPING/REDUCTION WELL, WATER SUPPLY METHOD THEREFOR, UNDERGROUND WATER PUMPING/REDUCTION SYSTEM, ROAD HEATING SYSTEM, AND SNOW MELTING SYSTEM

摘要

PROBLEM TO BE SOLVED: To prevent fine particles from being deposited in a pumping/reduction well.;SOLUTION: A pumping/reduction well comprises: a water permeable pipe which is disposed in a water stagnation layer and includes multiple holes on a side face; a tip reinforcing basin which is fitted to a tip of the water permeable pipe; a drain pipe of which one end is disposed within the tip reinforcing basin; and a water supply pipe which is disposed on an upper part of the drain pipe. It is preferable that one end of the water supply pipe is disposed within the tip reinforcing basin. It is preferable that at least a part of the tip reinforcing basin is located in a lower layer at a lower side of the water stagnation layer. Further, it is preferable that at least a tip portion of the tip reinforcing basin is formed conical, formed in a pyramid shape or bullet-shaped.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT