Quantitative evaluation of hydrogeological impact produced by tunnel construction using water balance models

Raposo, J. R.; Molinero, Jorge; Dafonte, Jorge Dafonte

doi:10.1016/j.enggeo.2010.09.014

Cited by 58 publications

(23 citation statements)

References 10 publications

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“…Drawdown caused by the drain effect or by the barrier effect (downgradient) could give rise to a number of problems, e.g., a) ground settlements caused by an increase in the effective stress (Zangerl et al, 2003, 2008a andMokni et al, 2013;Carrera and Vàzquez-Suñé, 2009), b) drying of wells, springs (Gargini et al, 2008;Yang et al, 2009;Raposo et al, 2010) and wetlands (Kvaerner and Snilsberg, 2008), c) seawater intrusion into coastal aquifers and d) swelling as a result of gypsum precipitation in anhydrite rock massifs (Butscher et al, 2011).…”

Section: Introductionmentioning

confidence: 98%

“…If the lining is permeable, tunnel inflows could cause a piezometric drawdown (Goodman et al, 1965;Gargini et al, 2008;Kvaerner and Snilsberg, 2008;Yang et al, 2009;Raposo et al, 2010). If the tunnel has an impervious lining, this can create a barrier effect by partial or total reduction of the aquifer section (Marinos and Kavvadas, 1997;Vàzquez-Suñé et al, 2005;Carrera and Vàzquez-Suñé, 2009;Deveughele et al, 2010), decreasing 1) the effective transmissivity of the aquifer (the sum of the transmissivity of the different geological layers) in the site where the tunnel is located and 2) the hydraulic connectivity between both sides of the construction.…”

Section: Introductionmentioning

confidence: 98%

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Assessment of the barrier effect caused by underground constructions on porous aquifers with low hydraulic gradient: A case study of the metro construction in Barcelona, Spain

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Pujades

Vàzquez-Suñé

et al. 2015

Engineering Geology

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Construction of tunnels can impact aquifers because of the changes produced in the natural groundwater behavior. The drain effect, which is one of the most important impacts, can be eliminated using a tunnelboring machine (TBM) to drill a tunnel with an impervious lining. However, the use of impermeable linings results in aquifer obstruction, giving rise to the barrier effect, which may cause an increase and decrease of the hydraulic head upgradient and downgradient of the tunnel, respectively. This modification of the hydraulic head, which can be predicted analytically and is proportional to the natural hydraulic gradient of the aquifer perpendicular to the tunnel (i N ) (before it is constructed), is negligible for aquifers with values of i N that are very small or null (approximately 0). In these cases, the analytical solutions are not useful to estimate the real impact because the head distribution is not largely affected. This study proposes a methodology to evaluate the hydrogeological impact produced by the construction of underground impervious structures in aquifers, which have a small or null i N . The method, which is based on the analysis of the groundwater response to pumping tests performed before and after construction, was tested in a stratified porous aquifer and was used along with numerical modeling to assess the barrier effect in an experimental site (Sant Cosme, El Prat de Llobregat, Barcelona). The impact on the head distribution was negligible. However, the reduction of the connectivity was considerable. Pumping tests can determine the changes in aquifer connectivity caused by the construction of an underground impervious structure. The behavior of the groundwater during the post-tunneling pumping changes with regard to the pre-tunneling tests. A delay in the response to the pumping and a decrease of the drawdown are observed in the piezometers located on the opposite side of the tunnel where the well is placed, whereas an increase of drawdown occurs in the piezometers situated on the same side of the well. The procedure explained in this paper reveals a useful tool for determining the impact caused by underground impermeable constructions in aquifers, where i N is small or even 0.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

Assessment of the barrier effect caused by underground constructions on porous aquifers with low hydraulic gradient: A case study of the metro construction in Barcelona, Spain

Font-Capó

Pujades

Vàzquez-Suñé

et al. 2015

Engineering Geology

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“…Visual Balan has proven reliable and robust when reproducing measured values of prolonged monitoring tasks that were carried out in several catchments of NW Spain (Martínez et al, 2006;Raposo et al, 2010;Samper et al, 1997Samper et al, , 1999Sena and Molinero, 2009;Soriano and Samper, 2000), and for recharge evaluation in other regions of Spain and Latin America (Candela et al, 2009;Carrica, 2004;Castañeda and García-Vera, 2008;Espinha-Marques et al, 2011;Garcia-Santos and Marzol;Jiménez-Martínez et al, 2010;Samper and Pisani, 2009;Weinzettel et al, 2002).…”

Section: Hydrological Modelmentioning

confidence: 99%

“…Because the Galician aquifers are highly rain-recharge dependent and the residence time of the water in these aquifers is very short (Soriano and Samper, 2000;Samper, 2003;Raposo et al, 2010), climate conditions are relevant in the determination of the amount of recharge.…”

Section: Description Of the Study Areamentioning

confidence: 99%

“…In a site study on granitic terrains the recharge was estimated to be 8.8 % of the annual precipitation using a water balance model (Samper et al, , 1999Soriano and Samper, 2000). Using the same methodology, Raposo et al (2010) estimates an average recharge at 13.6 % of annual precipitation in five granitic catchments in Galicia-Costa. This wide range of recharge rates makes it difficult to carry out a regional characterization and quantification of groundwater resources.…”

Section: Introductionmentioning

confidence: 99%

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Parameterization and quantification of recharge in crystalline fractured bedrocks in Galicia-Costa (NW Spain)

Raposo

Molinero

Dafonte

2012

Hydrol. Earth Syst. Sci.

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Abstract. Quantifying groundwater recharge in crystalline rocks presents great difficulties due to the high heterogeneity of the underground medium (mainly, due to heterogeneity in fracture network, which determines hydraulic parameters of the bedrock like hydraulic conductivity or effective porosity). Traditionally these rocks have been considered to have very low permeability, and their groundwater resources have usually been neglected; however, they can be of local importance when the bedrock presents a net of well-developed fractures. The current European Water Framework Directive requires an efficient management of all groundwater resources; this begins with a proper knowledge of the aquifer and accurate recharge estimation. In this study, an assessment of groundwater resources in the Spanish hydrologic district of Galicia-Costa, dominated by granitic and metasedimentary rocks, was carried out. A water-balance modeling approach was used for estimating recharge rates in nine pilot catchments representatives of both geologic materials. These results were cross-validated with an independent technique, i.e. the chloride mass balance (CMB). A relation among groundwater recharge and annual precipitation according to two different logistic curves was found for both granites and metasedimentary rocks, thus allowing the parameterization of recharge by means of only a few hydrogeological parameters. Total groundwater resources in Galicia-Costa were estimated to be 4427 hm 3 yr −1 . An analysis of spatial and temporal variability of recharge was also carried out.

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Numerical Simulation for Impacts of Mountainous Tunnel Drainage on Groundwater Environment

Xiao

Hao

Cui

et al. 2019

Sustainable Development of Water Resources and Hydraulic Engineering in China

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Quantitative evaluation of hydrogeological impact produced by tunnel construction using water balance models

Cited by 58 publications

References 10 publications

Assessment of the barrier effect caused by underground constructions on porous aquifers with low hydraulic gradient: A case study of the metro construction in Barcelona, Spain

Assessment of the barrier effect caused by underground constructions on porous aquifers with low hydraulic gradient: A case study of the metro construction in Barcelona, Spain

Parameterization and quantification of recharge in crystalline fractured bedrocks in Galicia-Costa (NW Spain)

Numerical Simulation for Impacts of Mountainous Tunnel Drainage on Groundwater Environment

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