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Irina Şerpescu

National Institute of Hydrology and Water Management

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Mohamed Amine Boukhemacha

Polytechnic School of Algiers

Dragoş Găitănaru

Technical University of Civil Engineering of Bucharest

Constantin Radu Gogu

Technical University of Civil Engineering of Bucharest

Ioan Bîcă

West University of Timişoara

Emil Radu

National Institute of Hydrology and Water Management

Daniel Marcel Manoli

Technical University of Civil Engineering of Bucharest

Ana Maria Priceputu

Joint United Nations Programme on HIV/AIDS

Alin Diaconescu

M�

Manole � Stelian Serbulea

Technical University of Civil Engineering of Bucharest

Roger Haagmans

European Space Research and Technology Centre

Cooperative Institutions

Technical University of Civil Engineering of Bucharest

Gheorghe Asachi Technical University of Iași

Romanian Space Agency

National Institute of Hydrology and Water Management

University of Bucharest

Universitat Politècnica de Catalunya

Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)

Advanced Science Research Center

Joint United Nations Programme on HIV/AIDS

European Space Research and Technology Centre

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GENERAL ASPECTS ON URBAN HYDROGEOLOGY AND HIGHLIGHTS FROM BUCHAREST (ROMANIA)

Environmental Engineering and Management Journal (2015)

Mohamed Amine Boukhemacha Constantin Radu Gogu Irina Şerpescu Dragoş Găitănaru Ioan Bîcă

The interaction between groundwater systems and urban environments has become an important challenge that fast developing modern cities must face.Contributing factors are, but not limited to, the continuous horizontal and vertical expansion of cities, population growth, climate change, water scarcity and water quality degradation.The present paper provides an overview on several aspects related to the interaction between aquifer systems and urban infrastructures.A review of urban groundwater related issues reported in case studies from cities worldwide is given in comparison with the situation in Bucharest city.The study emphasises the necessity of an integrated urban groundwater management and discusses supporting tools.

10.30638/eemj.2015.138

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Quantitative aspects of urban impacts on groundwater

Constantin Radu Gogu Amine Mohamed Boukkemacha Irina Şerpescu Dragoş Găitănaru Ioan Bîcă

Continued expansion of large cities, climate changes, water scarcity and its continued degradation, have created the need for a systematic study of the impact of urbanization on underground water. Urban hydrogeology has been gradually appeared in the last decades trying to analyze, explain and provide solutions to problems resulted from the interaction between underground water and urban infrastructure. The study of underground water issues in the urban field was defined in the last decade as a specialized branch of hidrogeology. While studying the behaviour of underground water basics as a science are well-established, specific aspects of underground water in urban areas have began to be recognized. Fundamental problems of urban hidrogeology are not substantially different from those of the classic hidrogeology, but the scale of time and space is different. In this context it can be outline some of the major aspects of urban underground, built in interaction with underground water: fluctuations of underground water level, sump and drainage works, the influence of underground constrctions on the underground regime, infiltration phenomena respectively exfiltrations between underground water and sewage networks, subsidence, issues addressed in the paper.

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Urban hydrogeology studies in Bucharest City, Romania

Procedia Engineering (2017)

Constantin Radu Gogu Dragoş Găitănaru Mohamed Amine Boukhemacha Irina Şerpescu Liviu Litescu

Bucharest, a city of about 1.9 million inhabitants and covering a surface of about 228 km2, faces two main hydrogeological problems. Both are results of the interaction between the aquifer system and the underground infrastructure. The first problem consists in the barrier effect produced by the extensively channelized Dambovita River that cuts Bucharest city in two parts, increasing consequently the groundwater hydraulic heads. The second problem is actually a twofold concern and it is due to the strong hydraulic interaction between the sewer system and the groundwater. As consequence, the seepage into the sewer network increases the wastewater flow rates. Restoration of its conduits triggers consequently the hydraulic heads increase in several residential areas of the city. A Bucharest city urban hydrogeology project has been built, it's primary milestone being the urban groundwater numerical flow model. This focuses on the interaction between the urban infrastructure and the groundwater system. The resulted hydrological water balance outlined that, for the entire Bucharest sewer network, about 0.92 m3/s wastewater surplus originates from the groundwater seepage. It has been also determined that about 16.9km (3.5%) of the sewer network is completely immersed into the groundwater and about 79.8km (16.5%) is partially immersed. The urban hydrogeological model framework is currently used to carry out distinct hydrogeological studies related to the city sewer system rehabilitation, infrastructure developments, groundwater protection, and environmental impact. The feedback from these studies increase further the city scale model knowledge and accuracy. A direct hydraulic connection between the surface water and the groundwater has been systematically confirmed.

Groundwater model

10.1016/j.proeng.2017.11.139

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3D geological model developed to analyse the aquifer - sewer network interaction in Bucharest city

EGU General Assembly Conference Abstracts (2012)

Irina Şerpescu Emil Radu R. G. Gogu Ana Maria Priceputu Mohamed Amine Boukhemacha

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A model of the Quaternary geological deposits of Bucharest City

EGU General Assembly Conference Abstracts (2013)

Irina Şerpescu Emil Radu Constantin Radu Gogu Mohamed Amine Boukhemacha Dragoş Găitănaru

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Interaction Between City Subsurface Infrastructure and Groundwater

Green energy and technology (2018)

Constantin Radu Gogu Mohamed Amine Boukhemacha Dragoş Găitănaru Irina Şerpescu

Groundwater discharge

Groundwater model

Channelized

Sanitary sewer

10.1007/978-3-319-99867-1_36

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

Hydrogeology Journal (2015)

Mohamed Amine Boukhemacha Constantin Radu Gogu Irina Şerpescu Dragoş Găitănaru Ioan Bîcă

Conceptual model

10.1007/s10040-014-1220-3

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Combined in-situ and Persistent Scatterers Interferometry Synthetic Aperture Radar (PSInSAR) monitoring of land surface deformation in urban environments - case study: tunnelling works in Bucharest (Romania)

International Journal of Remote Sensing (2021)

Mohamed Amine Boukhemacha Delia Teleagă Manole � Stelian Serbulea Valentin Poncoș Irina Şerpescu

Monitoring land surface deformation is one of the most reliable approaches that can be used to study, manage and forecast several geohazards (such as subsidence, landslide, sinkholes, etc.) linked to either natural or anthropogenic driving forces. The importance of such tools becomes more visible in urban environments where hazards would have aggravated consequences. Within this framework, a combined in-situ and remote sensing monitoring approach, that can be used to support a physically based assessment of land surface deformations driven by subsurface perturbations in urban environments, is presented. The approach makes use of multidisciplinary interferometric-hydrogeological-geotechnical investigation techniques. The present study was conducted on a test site in Bucharest where the effects of subway tunnelling and associated dewatering works were investigated. A referencing network specifically designed to support the targeted physically based assessment was implemented in this area. The system consisted of a set of monitoring stations equipped with corner reflectors, inclinometric and piezometric tubes, and levelling benchmarks. This system was deployed for a one year long monitoring campaign of in-situ surveying (of groundwater level, land surface vertical deformation (topographical levelling) and vertical profiles with horizontal displacements in soil (inclinometer surveys)) and remote sensing surveying (X-band Synthetic Aperture Radar (SAR) images were acquired). The obtained in-situ measurements (horizontal and vertical surface deformations) were used to cross-reference remotely sensed (obtained using Persistent Scatterers Interferometry technique) temporal deformation (along the line of sight) profiles. The results show that even though the investigated tunnelling and dewatering works did not produce detectable surface deformations, the SAR displacement trends fitted the in-situ measurements within a root mean square error of 1.5 to 4.8 mm, and thus the remote sensing approach proved again to be a reliable alternative to in-situ measurements for an adequate assessment of land surface deformation in urban and potentially non-urban environments.

Levelling

Inclinometer

Deformation monitoring

10.1080/01431161.2020.1857876

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3D GEOLOGICAL MODEL OF BUCHAREST CITY QUATERNARY DEPOSITS

International Multidisciplinary Scientific GeoConference SGEM ... (2013)

Irina Şerpescu

10.5593/sgem2013/ba1.v2/s02.001

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Citations (8)