WATER DISTRIBUTING PIPING STRUCTURE PROVIDED WITH WATER STORAGE FUNCTION

摘要

PROBLEM TO BE SOLVED: To costlessly widen an installation position of an emergency water storage tank. SOLUTION: Water distributing pipes under a road are made larger in the diameter to serve as a water storage tank T. Length/diameter of this water storage tank T is made 250 or smaller and the inflow/outflow parts are made to form a conical shape gradually expanded/contracted to prevent water from retaining in the water storage tank T. The water storage tank T and the conical parts are made of pipes a1 , a4 of existing JIS standards. A service pipe Q is provided with a bypass to easily supply water. A water supply pipe E is extended from the low position of the water storage tank T to the edge of a road R to supply water from the water storage tank T without hindrance to traffic.