摘要
水文地质条件对海绵城市建设适宜性及海绵城市设施的布设有重要影响。针对传统平剖面图无法全面反映水文地质条件的问题,借助三维可视化手段,综合地形起伏、地层结构和含水岩组在三维空间上的展布特点及其相互关系,揭示各项因素对海绵城市建设的制约关系。以武汉市长江新城起步区为例,根据研究区钻孔数据、地面高程及水文地质资料,利用GMS软件构建了三维水文地质结构模型,很好地显示了研究区地层情况、地形起伏和含水层厚度,结合土地利用类型分布,为海绵城市设施的布置和水文地质条件适宜性评价提供了基础依据。研究结果表明,长江新城起步区大部分区域建设海绵城市的水文地质条件适宜性较低,根据不同地区实际情况,采取布设水利工程、下沉式绿地、生物滞留池等设施,连通浅层地下水,并结合市政雨水管网,增强其排水能力。
Hydrogeological conditions have an important impact on the suitability of sponge city construction and the layout of facilities in sponge city.Aiming at the problem that the traditional plan and section can not fully reflect the hydrogeological conditions,with the help of three-dimensional visualization method,the distribution characteristics and mutual relationship of topographic relief,stratigraphic structure and water bearing rock group in three-dimensional space are integrated.It reveals the restrictive relationship of various factors to the construction of sponge city.Taking the starting area of Changjiang New Town in Wuhan as an example,according to the drilling data,ground elevation and hydrogeological data of the study area,a three-dimensional hydrogeological structure model is constructed by using GMS software,which well shows the stratum condition,topographic relief and aquifer thickness of the study area.It provides a basic basis for the layout of facilities and the suitability evaluation of hydrogeological conditions in sponge city.The results show that the suitability of hydrogeological conditions for the construction of sponge city in most areas of the starting area of Changjiang New Town is low.According to the actual situation of different areas,the layout of water conservancy projects,sunken green space,biological detention pool and other facilities are adopted to connect the shallow groundwater,and combined with the municipal rainwater pipe network to enhance the drainage capacity.
作者
李云
徐连三
陈建良
王中武
李祖春
Li Yun;Xu Liansan;Chen Jianliang;Wang Zhongwu;Li Zuchun(Institute of Hydrogeologic and Engineering Geological of Wuhan,Hubei Geological Bureau,Wuhan,Hubei 430051;Hubei Geological Environment Station,Wuhan,Hubei 430034)
出处
《资源环境与工程》
2022年第2期198-203,共6页
Resources Environment & Engineering
基金
湖北省地质局科研项目“‘海绵体土壤’渗蓄能力评价及其对海绵城市建设的影响示范研究”(KJ2020-26)。
关键词
海绵城市
水文地质结构模型
GMS
长江新城起步区
sponge city
hydrogeological structure model
GMS
starting area of Changjiang New Town
