We are a team of innovative and independent geologists having a solid and broad praxis-oriented professional expertise. We offer targeted consulting in risk assessment and cost reduction issues for every single project phase.
Katja von Allmen
Dr. in geology (University of Fribourg)
Professional experience since 2006
Current activity: spoil management for the project Linthal 2015
Dissertation 2010 (geochemistry, University of Fribourg): Variations of calcium and barium isotopes and elemental contents in biogenic and abiogenic geological archives.
Laurie Cortesi Kauffmann
Diploma engineering geology (University of Geneva and EPFL)
Professional experience since 2004
Current activity: spoil management for AlpTransit Ceneri
Diploma work in magmatic petrography and geochemistry, chilean Andes (2002, University of Geneva)
Graduate courses in engineering geology and environmental geology (2003, EPFL, École des Mines de Paris, École polytechnique de Montréal, Université de Liège)
Diploma draftsman BMS
Professional experience since 1984
Human ressources and accounting
Diploma in geology (University of Neuchâtel)
Professional experience since 2003
Spoil management support on the AlpTransit construction sites
Geologist at the office of natural hazards in the Canton of Tessin (CH)
Diploma work in structural petrography of Campo Tencia (Simano crystalline ceiling)
Master in quaternary geology (University of Bern)
Professional experience since 2008
Current activity: spoil management for Alptransit Faido, Bodio and Ceneri
Master work on “Die petrographische Zusammensetzung der natürlichen Betonzuschlagstoffe in den Kantonen Bern und Tessin und ihre möglichen Einflüsse auf die Alkali-Aggregat-Reaktion (AAR)“
Dr. in geology (ETHZ / Muséum National d'Histoire Naturelle, Paris)
Concrete technologist, construction materials tester (concrete and mortar)
Professional experience since 2007
Current activities: spoil management and concrete technology for the project Linthal 2015
Master of environmental sciences/-geology (ETHZ); Title: «182Hf-182W systematics of aubrites»
PhD in cosmochemistry and geology (Muséum National d’Histoire Naturelle de Paris (MNHN); Title: « Cr isotopes in carbonaceous chondrites: 53Mn-53Cr systematics of carbonates and Cr isotopic anomalies »
Dr. in engineering geology (ETHZ)
Professional experience since 1989
Diploma work in sedimentology (NW-Iberian range, province of Soria/Spain) Minors in mineralogy and chemistry (University of Bern)
Dissertation on the reuse of tunnel excavated materials into aggregates for concrete (ETHZ)
Diva De Luxe von der Luppmühle
Professional experience since 23.05.2012
and truffle hunter...
Since 2021 B+ G supports a consortium for the tender of the material management lot. Based on our experience, the raw material is continuously tested in the construction site's own laboratory.
Concrete tests with sulphate-containing aggregates (produced from tunnel excavation) and special binders were carried out in the Modane intermediate attack on 7 April 2016.
Among other things, the sulphate resistance is to be investigated.
The new Spitallam dam in the Bernese Oberland will require around 200,000m3 of concrete. The mass concrete consists of a maximum grain size of 125mm! A gravel plant was built for the production of the aggregates. B+ G supports the client KWO in the quality of raw materials, aggregates and concrete.