1ICS91.140.80 CCSP40 1404 山西省长治市地方标准 DB1404/T33—2024 长治市海绵城市工程设计指南 DesignGuidelinesforSpongeCityEngineeringinChangZhiCity 2024-02-28发布 2024-05-28实施 长治市市场监督管理局发布 DB1404/T33—2024 1目  次 前  言.................................................................................................................................................................2 1范围...................................................................................................................................................................1 2规范性引用文件...............................................................................................................................................1 3术语和定义.......................................................................................................................................................2 4基本规定...........................................................................................................................................................4 5参数与计算.......................................................................................................................................................6 6源头减排系统设计........................................................................................................................................14 7雨水管渠系统设计........................................................................................................................................20 8行泄与调蓄系统设计....................................................................................................................................24 9典型场景海绵城市设计................................................................................................................................26 10海绵单项设施设计........................................................................................................................................33 附录A（规范性附录）长治市及各区县暴雨强度公式............................................................................46 附录B（资料性附录）长治市湿陷性黄土地质分布................................................................................47 附录C（资料性附录）长治市海绵城市单项设施投资估算一览表........................................................48 附录D（资料性附录）生物滞留设施典型换填介质选配一览表............................................................49 参 考 文 献...................................................................................................................................................50