title: Modeling transient discharge into a tunnel drilled in a heterogeneous formation.
abstract: An analytical model is developed to predict transient discharge flow into a tunnel drilled at various speeds through a heterogeneous formation. This model relies on simplifying assumptions commonly enforced in hydrogeologic engineering, and combines the convolution and superposition principles to account for composite sections with arbitrary parametric contrasts. An application to the data monitored during the exploratory drilling of an Alpine tunnel confirms the validity of the approach.
authors.affiliation: Centre of Hydrogeology, University of Neuchâtel, Neuchâtel, Switzerland. pierre.perrochet@unine.ch
authors.forename: Pierre
authors.initials: P
authors.lastname: Perrochet
authors.forename: Antonio
authors.initials: A
authors.lastname: Dematteis
mesh_terms: D000465:Algorithms; D008962:Models, Theoretical; D014872:Water Movements