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Auteur Ballesteros, D.; Malard, A.; Jeannin, P.Y.; Jiménez-Sánchez, M.; García-Sansegundo, J.; Meléndez-Asensio, M.; Sendra, G. pdf  url
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  Titre Influence of the rivers on speleogenesis combining KARSYS approach and cave levels. Picos de Europa, Spain Type Book Chapter
  Année 2015 Publication Hydrogeological and environmental investigations in karst systems. Environmental Earth Sciences Revue Abrégée  
  Volume 1 Numéro (up) Pages 599-607  
  Mots-Clés Karsys  
  Résumé The influence of rivers on speleogenesis is studied analyzing the cave

levels located in the underground drainage areas related to two fluvial basins. Cave

levels are analyzed through their vertical distribution profiles. The underground

limits of the fluvial basins are defined using a 3D geometric model of the karst

aquifer established according to the KARSYS approach. The aim of this work is to

analyze the influence of the rivers on cave evolution using cave morphology. The

study area corresponds to the Western and Central massifs of Picos de Europa

(Northern Spain), with 214 km of cave conduits up to 1.6 km vertical range. As a

result, we established two sequences of development of the cave levels related to

the differences of the incision rate of the Cares and Dobra Rivers, and the partial

capture of the Western Massif by the Cares River.
 
  Adresse  
  Auteur institutionnel Thèse  
  Editeur Springer Lieu de Publication Éditeur  
  Langue Langue du Résumé Titre Original  
  Éditeur de collection B. Andreo et al. Titre de collection Titre de collection Abrégé  
  Volume de collection Numéro de collection Edition  
  ISSN ISBN Médium  
  Région Expédition Conférence  
  Notes Approuvé no  
  Numéro d'Appel collection 16  
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Auteur Malard, A.; Jeannin, P.-Y.; Rickerl, D. url  openurl
  Titre Impact of a Tunnel on a Karst Aquifer: Application on the Brunnmühle Springs (Bernese Jura,Switzerland) Type Book Chapter
  Année 2015 Publication Hydrogeological and environmental investigations in karst systems. Environmental Earth Sciences Revue Abrégée  
  Volume Numéro (up) Pages 457-463  
  Mots-Clés KarstALEA  
  Résumé Tunnel drilling in karst regions often leads to major disturbances in the hydrogeological functioning of

aquifers and flow-systems. Numerous examples in Switzerland do exist and induced significant costs,

which were not or rarely anticipated (e.g.: Flims, Jeannin et al. 2009). The Ligerztunnel is one such

example. The tunnel was built a few hundreds of meters upstream from the Brunnmühle spring, which

contributes to the drinking water supply of communities of Twann and Ligerz. During the construction, a

major karst conduit with a huge discharge rate was intersected in a side exploration tunnel. Overflowing

water was diverted in the Twannbach canyon. In the main section, smaller conduits were found and

drained outside by pipe leading water close to the Brunnmühle spring. Actually, authorities want to add a

safety gallery parallel to the main tunnel. In this view, SISKA is in charge of evaluating the hydrological

disturbances on the spring regime. The paper presents the approach applied to assess the potential effect of

the drilling of a new tunnel near to a group of karst springs and pumping wells. The approach combines

available spatial information and a hydraulic model. The KARSYS approach is first applied on the system

in order to set up a 3D geological and hydrogeological model of the karst aquifer and the related systems.

The spatial distribution of karst conduits within the massif is assessed based on a speleogenetical and

inception horizons model (KarstALEA method). Inferring from these models, a karst conduits network is

generated. The downstream part of the conduits network, which concerns the vicinity of the tunnels

project, is precisely calibrated using head and discharge data. Flow in this conduits network is then

simulated using SWMM 5.0 in order to reproduce the hydrological responses of the different outlets

(permanent springs, drainage devices, overflow springs, etc.).
 
  Adresse  
  Auteur institutionnel Thèse  
  Editeur Springer Lieu de Publication Éditeur  
  Langue Langue du Résumé Titre Original  
  Éditeur de collection B. Andreo et al. Titre de collection Titre de collection Abrégé  
  Volume de collection Numéro de collection Edition  
  ISSN ISBN Médium  
  Région Expédition Conférence  
  Notes DOI 10.1007/978-3-642-17435-3_52 Approuvé no  
  Numéro d'Appel refbase @ user @ collection 124  
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