建设“海绵天津”必须兼顾“蓄雨入渗”与“排水排盐”

Building Sponge Tianjin Should Consider both "Water Storage & Permeat" and "Water & Salt Drainage"

海绵城市是城市雨洪管理的一个新概念,国际上通用俗语为"低影响开发雨水系统构建"。通俗理解就是在下雨时城市地表能像海绵一样吸水、渗水、蓄水,使大气降水转化为土壤水和地下水,成为可利用的水资源。笔者对建国以来黄淮海平原处理"蓄、排"关系的经验和教训做了简要回顾,并对"海绵天津"建设的具体内容进行探讨,同时还介绍了地下埋设填料暗沟预制件、地面铺装透水路面砖,建成蓄排兼顾的"海绵天津"的具体技术和方法。

Sponge city is a new concept proposed for city flood management. It is also known as ＂slight-influenced rain drainage system construction＂ internationally. Simply speaking, it means the earth surface of a city is like sponge that can absorb, permeate and restore rain water and turn rain water into useful resources for soil irrigation and underground water. This paper makes a brief review of some experiences and lessons in the treatment relationship between storage and drainage in Huang-huai-hai plain since the establishment of the P.R.C. Meanwhile the specific content of Tianjin Sponge city construction was discussed here. It was also discussed the in-laid blind ditch pre-fabricated pipes, permeable surface brick laying, and the concrete skills and methods for building Tianjin Sponge City considering both storage and drainage of rain water.