Références

« Working together and joining our resources, we can accomplish great things. »

Ronald Reagan, American actor and president

River Dranse de Bagnes

Key-words:

River engineering, Flood protection, Sediment management, Restoration
Natural hazards and risks, Alarm planning

Date:

2011-2016

Client:

Communities of Sembrancher and Vollèges

Partners:

CERT ingénierie sa (project management), Droséra SA, Tissières SA et Jean-Louis Boillat

Achievements:

Project and detailed project
Restorations- und Flood protection measures.
Hydraulic computation with and without sediments transport. Design of a widening, groins, deflectors, bank protection and structures for gravel plants.
Design of levees and bridges.
Alarm planning before, during and after construction of the mitigation and restoration measures.

Restoration planning

Key-words:

River engineering, Sediment management, Restoration

Date:

2012-2015

Client:

DSVF, Office for road, transport and und river engineering of the Canton Valais

Partners:

KBM SA, François-Xavier Marquis sàrl

Achievements:

Preliminary study
Inventory of plants influencing the morphology of the water courses, inventory of reaches needing restoration and catalogue of restoration measures.

River Rhone in the forest of Pfyn

Key-words:

River engineering, Restoration
Infrastructures, Hydro power plants

Date:

2012-2015

Client:

Forces motrices valaisannes

Achievements:

Preliminary study
Methodology for evaluating the depth of a braided bed in function of the width. These complete the numerical terrain model.
Two-dimensional model of the concerned section of the river Rhone. Simulation of different residual discharges with and without artificial dead waters.
Analysis of the flow depth and velocity and their influence of natural habitats of different species of water animals.
Dynamic of fine sediments (transport, erosion and deposition).

Torrent de la Tournelle

Key-words:

River engineering, Flood protection, Restoration

Date:

2012-2014

Client:

Community of Bagnes

Partners:

CERT ingénierie sa, Drosera SA

Achievements:

Preliminary study, Preliminary design project and detailed project
Choice of the torrent corridor and the design discharge.
Modelisation of water level with the software HEC-RAS and hydraulic design including restoration measures.
Modellierung des Wasserspiegels mit HEC-RAS und hydraulische Bemessung inklusive der ökologischen Massnahmen.
Project management and coordination with partners.

Space provided to water in the Val de Bagnes

Key-words:

River engineering, Space provided to water

Date:

2015-2016

Client:

Community of Bagnes

Achievements:

Preliminary study
Review of the water course register, inventory of the water courses where space provided to water has to be released, separation in sections, definition of natural width and of the space provided to water, plans and report for approbation.

River Vièze in Monthey

Key-words:

River engineering, Flood protection, Sediment management, Restoration, Space provided to water, Hazard map
 

Date:

2004-ongoing

Client:

City and community of Monthey

Partners:

CERT ingénierie sa (project management), françois-xavier marquis sàrl, BEB SA, dv architectes, Jean-Louis Boillat

Achievements:

Preliminary study, preliminary design project und petailed project
Analysis of hydraulic capacity and weak points. Elaboration of different variants.
Definition of the design flood based on a cost-benefit analysis.
optimisation of the profile considering sediment transport, restoration measures and freeboard.
Hazard assessment „after measures“ using a 2D-model.
Release of the space provided to wateres.

Flood protection on the torrent Fregnolay

Key-words:

River engineering, Flood protection, Restoration
Natural hazards and risks, Alarm planning

Date:

2009-2010

Client:

Community of Bagnes

Partners:

CERT ingénierie sa (Project management), Drosera SA

Achievements:

Preliminary design project und construction project
Restoration and protection measures on the torrent with debris flow.
Hydraulic computation and modeling of debris flows.
Design of structures as levees.
Concept for revegetation of the banks.
Establishment of an alarm planning.

Restoration of surge and down surge

Key-words:

River engineering, restoration

Date:

2012-2014

Partners:

BG Ingénieurs Conseils SA, PRONAT Conseils SA, ETEC Ecologie aquatique Sàrl, Kbm Engineers SA, Basler & Hofmann AG

Achievements:

Preliminary study
Evaluation of the bad influence of surge and down surge on the hydrology of the watercourses.
Inventory of hydro power plants with deteriorating effect.
Simulation of surge propagation with the software RS MINERVE.

Ecological compensation measures for the Nant de Drance power plant

Key-words:

River engineering, Restoration

Date:

2011-ongoing

Client:

Nant de Drance

Partners:

Kurmann&Cretton SA

Achievements:

Preliminary study and preliminary design project
Analysis of different variants of expansion of the river
Evaluation of a long terme morphologically stable profile for the variant proposed
Freeboard computations
Design of the bank protection and the bed protection in the expansion
Management of the remaining risk.

Space provided to water of Vernayaz

Key-words:

River engineering, Space provided to water

Date:

2015

Client:

Community of Vernayaz

Achievements:

Preliminary study
Review of the water course register, inventory of the water courses where space provided to water has to be released, separation in sections, definition of natural width and of the space provided to water, plans and report for approbation.