第一章 概念及理论 ......................................................................................................................... 2 1 .1 排水体制 ............................................................................................................................ 4 1.2 影响排水布管的主要因素 ................................................................................................ 4 1.3 截流式合流制排水体制 ................................................................................................... 4 第二章 截流主干管的设计说明及设计计算 ................................................................................. 6 2 .1 设计概况 ............................................................................................................................ 6 2 .2 截流式合流制排水管渠系统的布置特点及要求 ............................................................ 6 2 .3 截流管道的布管 ................................................................................................................ 7 2 .3 .1 管道系统的布置形式 ............................................................................................. 7 2 .3 .1 截流管道布管内容 .................................................................................................. 7 2 .4 截流干管的设计要求 ........................................................................................................ 8 2 .4 .1 设计充满度 ............................................................................................................. 8 2 .4 ..2 设计流速 ................................................................................................................. 8 2 .4 .3 最小管径和最小坡度 ............................................................................................. 9 2 .4 .4 最小埋设深度 .............................................................................................
