Inlet Spacing Considering the Risk Associated to Runoff.Application to Streets and Critical Points of the City of Barcelona

摘要

In this work an analysis of the street flow and the risk criteria adopted in the city of Barcelona,rnassociated to the street discharge is presented. After selecting some risk criteria concerningrnmaximum water depths, velocities or combination of both, a hydrologic and hydraulic analysis isrnmade considering for some longitudinal street slope values, the discharge pattern produced by arn10 year return period rainfall, with different inlet types and inlet spacing. The discharge patternrnstabilizes at a maximum discharge, whose associated depth and velocity are used to verify riskrnfactors previously established. Thus we can see for every inlet type and street slope, which one isrnthe optimal inlet spacing in order to match with the proposed risk criteria. These values are usedrnin the reform of old streets and in the design of new collecting stormwater systems.