On Issues & Solutions of Separate System Drainage Pipeline Design

Aiming at the features of separate system drainage pipeline and learning from administrative departments construction units,there are several key issues existed in separate system drainage pipelines design analyzed and discussed with relevant professional experience including pipelines layout,minimum pipeline diameter choice,connection of separated combined pipelines,pipelines intersection,pipeline crossing river canals and pipeline crossing road.Meanwhile,the optimization methods and solutions are proposed to provide references for designing separate system drainage pipelines more rationally.