滨海盐碱地区海绵城市下凹式绿地建设若干技术探讨  

Discussions on the Construction of Sponge City Sunken Greenbelt in Coastal Saline-alkali Area

作　　者：刘静 周国华 尚巍 王金丽 葛铜岗 Liu Jing;Zhou Guohua;Shang Wei;Wang Jinli;Ge Tonggang(North China Municipal Engineering Design &Research Institute Co.Ltd., Tianjin 300074, China;School of Civil Engineering,Tianjin University, Tianjin 300350, China)

机构地区：[1]中国市政工程华北设计研究总院有限公司,天津300074 [2]天津大学建筑工程学院,天津300350

出　　处：《环境科学与管理》2022年第5期37-41,共5页Environmental Science and Management

基　　金：国家水体污染控制与治理科技重大专项(2017ZX07106002);天津市“131”创新型人才培养工程(第二层次);中国建设科技集团科技创新基金项目(Z2020J05)。

摘　　要：针对滨海盐碱区域建设海绵城市存在的排蓄物理冲突、养分缺失、水涝烂根、渗透性差、景观效果不佳五方面技术问题,通过对这些技术问题的分析,提出了这五方面问题的解决方案,具体包括分离原理、保养去糟、上溢底排、土壤改良、景观塑造。并结合中新天津生态城滨海盐碱区海绵城市示范工程实践,对滨海盐碱区域建设海绵城市下凹式绿地的可行性进行了分析和工程验证,实践证明盐碱地区也是可以建设海绵城市下凹式绿地的,而且海绵城市建设理念对盐碱地绿化原有技术也是一个提升、革新的过程,使盐碱地绿化技术增加了对雨水径流渗蓄净的功能,还进一步降低了绿化工程成本。期望对其他滨海盐碱区域海绵城市建设提供参考。This paper studied five technical problems existing in the construction of sponge cities in coastal saline-alkali region,such as physical conflict of drainage and storage,nutrient deficiency,water-logging and rotten root,poor permeability and poor landscape effect.Solutions were proposed through the analysis of these technical problems,including separation principle,maintenance,overflow drainage,soil improvement and landscape shaping.Combined with the practice of the Sino-Singapore Tianjin Eco-city Sponge City demonstration project in the coastal saline-alkali area,the feasibility of constructing sponge city sunken greenbelt in the saline-alkali area of Binhai was analyzed and verified by the project.The results proved that it is possible to build sponge cities sunken greenbelt in saline-alkali areas,and the concept of sponge city construction is also a process of upgrading and innovation for the original technology of saline-alkali land greening.The afforestation technology of saline-alkali land increases the function of infiltration retention and storage of rainwater runoff,and further reduces the cost of afforestation project.This paper expects to provide reference for the construction of sponge cities in other coastal saline-alkali areas.

关 键 词：滨海 盐碱区 海绵城市 下凹式绿地技术问题 探讨 

分 类 号：X32[环境科学与工程—环境工程]