NDLI: A hydrogeological conceptual approach to study urban groundwater flow in Bucharest city, Romania

Content Provider	Springer Nature Link
Author	Boukhemacha, Mohamed Amine Gogu, Constantin Radu Serpescu, Irina Gaitanaru, Dragos Bica, Ioan
Copyright Year	2015
Abstract	Management of groundwater systems in urban areas is necessary and can be reliably performed by means of mathematical modeling combined with geospatial analysis. A conceptual approach for the study of urban hydrogeological systems is presented. The proposed approach is based on the features of Bucharest city (Romania) and can be adapted to other urban areas showing similar characteristics. It takes into account the interaction between groundwater and significant urban infrastructure elements that can be encountered in modern cities such as subway tunnels and water-supply networks, and gives special attention to the sewer system. In this respect, an adaptation of the leakage factor approach is proposed, which uses a sewer-system zoning function related to the conduits’ location in the aquifer system and a sewer-conduits classification function related to their structural and/or hydraulic properties. The approach was used to elaborate a single-layered steady state groundwater flow model for a pilot zone of Bucharest city.La gestion des systèmes aquifères en milieu urbain est nécessaire et peut être effectuée de manière fiable au moyen de modélisation mathématique combinée à une analyse spatiale. Une approche conceptuelle pour l’étude des systèmes hydrogéologiques urbains est présentée. L’approche proposée se base sur les caractéristiques de la ville de Bucarest (Roumanie) et peut être adaptée à d’autres zones urbaines présentant des caractéristiques similaires. Elle prend en compte les interactions entre les eaux souterraines et les éléments importants des infrastructures urbaines que l’on peut trouver dans les villes modernes, telles que les tunnels de métro et les réseaux d’approvisionnement en eau, et accorde une attention particulière aux réseaux d'égouts. A cet égard, une adaptation de l’approche du facteur de fuite est proposée, qui utilise une fonction de zonage du système égouts liés à l’emplacement des conduites dans le système aquifère et une fonction de classification des conduites d’égouts associée à leur structure et/ou à leurs propriétés hydrauliques. L’approche a été utilisée pour élaborer un modèle d’écoulement mono couche en régime permanent pour une zone pilote de la ville de Bucarest.Para el manejo de sistemas hidrogeológicos en áreas urbanas es necesario y puede ser confiable realizarlo mediante modelación matemática combinada con un análisis geoespacial. Se presenta un enfoque conceptual para el estudio de sistemas hidrogeológicos urbanos. El enfoque propuesto está basado en las características de la ciudad de Bucarest (Rumania) y puede ser adaptado a otras áreas urbanas que muestren características similares. Ello tiene en cuenta la interacción entre el agua subterránea y los significativos elementos de la infraestructura urbana que se encuentran en las ciudades modernas, tales como túneles subterráneos, redes de abastecimiento de agua y con especial atención al sistema del alcantarillado, proponiéndose una adaptación al enfoque del factor de filtración, el cual usa una función del sistema de alcantarillado relacionado con la ubicación de conductos en el sistema acuífero y una función de la clasificación del conductos del alcantarillado relacionada con sus propiedades estructurales y/o hidráulicas. Se usó este enfoque para elaborar un modelo de flujo de agua subterránea de una sola en estado estacionario para una zona piloto en la ciudad de Bucarest.城区地下水系统的管理非常必要,可通过数学模拟结合地理空间分析来完成。这里展示了一种研究城区水文地质系统的概念方法。所论述的方法基于(罗马尼亚)布加勒斯特市的特点,可适用于具有相似特征的其它城区。本方法考虑了地下水和现代城市能遇到的重要城区宏观元素之间的相互关系,这些元素如地铁隧道和供水管网。本方法还特别关注污水管道系统。在这方面,提出了可采用渗漏因子方法,该方法采用与含水层系统中管道位置相关的污水管道系统分区功能及与污水管道系统结构和/或水力特性相关的污水管道分类功能。采用本方法详细论述了布加勒斯特市一个实验区的单层稳定态地下水流模型。A gestão de sistemas de águas subterrâneas em áreas urbanas é necessária e pode ser realizada de maneira confiável por meio de modelagem matemática combinada à análise geoespacial. É apresentada uma abordagem conceitual para estudo de sistemas hidrogeológicos urbanos. A abordagem proposta é baseada em feições da cidade de Bucareste (Romênia) e pode ser adaptada a outras áreas urbanas apresentando características similares. É levada em consideração a interação entre águas subterrâneas e elementos significativos da infraestrutura urbana que podem ser encontrados em cidades modernas, como túneis de metrô e redes de distribuição de água, e dá especial atenção ao sistema de esgotos. A esse respeito, é proposta uma adaptação na abordagem do fator de vazamentos, que utiliza uma função de zoneamento do sistema de esgoto relacionado à localização das tubulações no sistema aquífero e uma função de classificação das tubulações de esgoto relacionada às suas propriedades estruturais e/ou hidráulicas. A abordagem foi utilizada para a elaboração de um modelo de fluxo de águas subterrâneas de camada única em estado estacionário para uma área piloto da cidade de Bucareste.Managementul apelor subterane din mediul urban este necesar și poate fi realizat într-un mod pertinent prin modelare matematică și analiză spațială. În această lucrare este prezentată o abordare conceptuală pentru realizarea unui studiu de hidrogeologie urbană. Abordarea propusă se bazează pe elementele relevante ale orașului București (România), putând fi adoptată și în alte regiuni urbane care prezintă caracteristici hidrogeologice și de infrastructură subterană similare. Este analizată interacțiunea dintre apele subterane și elementele reprezentative ale infrastructurii existente în orașele moderne, precum tunelurile de metrou, rețeaua de alimentare cu apă, acordându-se o atenție deosebită interacțiunii apelor subterane cu rețeaua de canalizare. În acest sens, se propune o adaptare a abordării bazată pe factorul de exfiltrație/infiltrație. Această adaptare utilizează o funcție ce ține cont de poziția conductei de canalizare în sistemul acvifer precum și de o clasificare a conductelor de canalizare în funcție de proprietățile lor structurale și/sau hidraulice. Abordarea prezentată a fost utilizată pentru elaborarea unui model de curgere în regim permanent, pentru un singur orizont acvifer, pe o zonă pilot din orașul București.
Starting Page	437
Ending Page	450
Page Count	14
File Format	PDF
ISSN	14312174
Journal	Hydrogeology Journal
Volume Number	23
Issue Number	3
e-ISSN	14350157
Language	Romanian
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-01-10
Publisher Institution	International Association of Hydrogeologists
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Groundwater flow Urban groundwater Conceptual approach Sewer system Romania Hydrogeology Hydrology/Water Resources Geology Waste Water Technology Water Pollution Control Water Management Aquatic Pollution
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Water Science and Technology

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