Urban hydrogeology studies in Bucharest City, Romania

Gogu, Constantin Radu; Găitănaru, Dragoș; Boukhemacha, Mohamed Amine; Serpescu, Irina; Litescu, Liviu; Zaharia, Valentin; Moldovan, Alexandru; Mihailovici, Madalin J.

doi:10.1016/j.proeng.2017.11.139

Cited by 11 publications

(9 citation statements)

References 3 publications

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“…These urban dynamics, which change over time, extend not only horizontally and upward, but also downward. Underground space has more often been used to relieve the pressure on the increasingly overcrowded urban surface [1][2][3][4]. Underground construction has replaced surface construction on a wide scale, especially with respect to networks (cables, sewage, and drainage), transportation (subway, tunnels, and passages), and storage (warehouses, cellars, parking areas, and thermal energy), as well as shelter and protection places (nuclear bunkers, bank vaults, and underpasses) [5].…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, the exploitation of the subsurface environment of cities is not only a way to rediscover some space in the urban centers, to create new uses, or to extend the existing ones, but it is also considered to be an important way to optimize the use of space and, thus, to meet the different needs of, and alleviate the pressures on, urban areas [3]. Hence, there is an increased need for sustainable urban subsurface management and the integration of underground information into urban land use planning.…”

Section: Introductionmentioning

confidence: 99%

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Underground Space Utilization in the Urban Land-Use Planning of Casablanca (Morocco)

Zerhouny

Fadil

Hakdaoui

2018

Land

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With the rapid rate of population growth and economic development, cities face enormous challenges that require both optimal and integrated solutions to meet the needs of growth and to protect the environment and sustainable development. These urban dynamics, which change over time, extend not only horizontally and upward, but also downward. Thus, underground space has been utilized increasingly to relieve the urban surface and to ensure the exploitation of underground resources. The purpose of this study is to evaluate the possibilities of using this space in Casablanca as part of urban land-use planning and, consequently, to suggest an integrated model of exploitation of this space that is adapted to the specificities of the study area. Thus, an analysis of the use of underground spaces in a set of European cities has been performed. The study of the characteristics of this space in Casablanca has been realized according to the levels of geology and hydrogeology and two underground infrastructure projects. This work has led to the implementation of a prototype model named “Sub-Urban Information Modeling”. The model’s objective is to gather all the data and knowledge related to the relevant underground space in an integrated platform that can be shared and updated in order to facilitate the understanding of this environment and its interaction with the surface and to ensure the rational and efficient use of its resources.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Underground Space Utilization in the Urban Land-Use Planning of Casablanca (Morocco)

Zerhouny

Fadil

Hakdaoui

2018

Land

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“…Nonetheless, no observations outside the catchment are available to clarify this issue. Finally, drinking water leakage in the soil can occur, which would increase the recharge throughout the year and prevent the high decrease of groundwater levels observed in the simulation; this phenomenon has been discussed in several cities like Bucharest, Romania [4,49], St Louis, Missouri(US) [54] or Santiago, Chile [5]. trenches caused by the local groundwater drawdown.…”

Section: Groundwater Level Distribution Assessmentmentioning

confidence: 94%

“…Some causes explaining a reduction in groundwater include an infiltration decrease due to additional imperviousness, groundwater pumping for various urban water uses, and groundwater flow into drainage trenches [1]. On the other hand, leakage from water supply and waste water networks becomes a source of recharge for urban groundwater [2][3][4][5]. Furthermore, leakage from waste water systems is also a possible source of groundwater contamination [6].…”

Section: Introductionmentioning

confidence: 99%

Groundwater Contribution to Sewer Network Baseflow in an Urban Catchment-Case Study of Pin Sec Catchment, Nantes, France

Rodríguez

Delliou

Andrieu

et al. 2020

Water

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Sewer systems affect urban soil characteristics and subsoil water flow. The direct connection observed between baseflow in sewer systems under drainage infiltrations and piezometric levels influences the hydrological behavior of urban catchments, and must consequently be considered in the hydrologic modeling of urban areas. This research studies the groundwater contribution to sewer networks by first characterizing the phenomenon using experimental data recorded on a small urban catchment in Nantes (France). Then, the model MODFLOW was used to simulate the infiltration of groundwater into a sewer network and model dry weather flows at an urban catchment scale. This application of MODFLOW requires representing, in a simplified way, the interactions between the soil and the sewer trench, which acts as a drain. Observed average groundwater levels were satisfactorily simulated by the model while the baseflow dynamics is well reproduced. Nonetheless, soil parameters resulted to be very sensitive, and achieving good results for joint groundwater levels and baseflow was not possible.

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“…In the context of continuous urban development and population growth, urban areas are strongly influenced by the different processes affecting the underground and implicitly the terrestrial surface [1][2][3][4][5][6][7]. One of these is the groundwater flow when considering its interaction with the urban environment [5,8,9]. In many cases, mostly because of the groundwater pumping, the effect triggering land subsidence can be observed at the ground surface [1,[10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Sentinel-1 Data for Underground Processes Recognition in Bucharest City, Romania

et al. 2020

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Urban areas are strongly influenced by the different processes affecting the underground and implicitly the terrestrial surface. Land subsidence can be one of the effects of the urban processes. The identification of the vulnerable areas of the city, prone to subsidence, can be of great help for a sustainable urban planning. Using Sentinel-1 data, by the PSI (persistent scatterer interferometry) technique, a vertical displacements map of Bucharest city has been prepared. It covers the time interval 2014–2018. Based on this map, several subsidence areas have been identified. One of them, holding a thick layer of debris from urban constructions, was analyzed in detail, on the basis of an accurate local geological model and by correlating the local displacements with the urban groundwater system hydraulic heads. The properties of the anthropogenic layer have been characterized by complementary geotechnical and hydrogeological studies. A dynamic instability pattern, highlighted by PSI results, has been put into evidence when related to this type of anthropogenic layer. This thick anthropogenic layer and its connections to the urban aquifer system have to be further analyzed, when the procedures of urban planning and design invoke constructive operations modifying the aquifer dynamics.

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Urban hydrogeology studies in Bucharest City, Romania

Cited by 11 publications

References 3 publications

Underground Space Utilization in the Urban Land-Use Planning of Casablanca (Morocco)

Underground Space Utilization in the Urban Land-Use Planning of Casablanca (Morocco)

Groundwater Contribution to Sewer Network Baseflow in an Urban Catchment-Case Study of Pin Sec Catchment, Nantes, France

Sentinel-1 Data for Underground Processes Recognition in Bucharest City, Romania

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