SEMASO is specialized in sediment management solutions for ports and navigational channels around the world.

Nautical depth implementation (passive and active)

Sediment dredging and reclamation

Physical and technical properties of sediment (e.g.: ripening, erodibility and consolidation)

SEMASO provides clear and practical solutions for the sediment problems, due to our up to date expert knowledge in the field, in house fieldwork and laboratory analysis, large network of experts, frequently consultations with clients and the ability to think practically.

All field, laboratory and consultancy activities are carried out according to the relevant ASTM or EU standards (e.g. NEN or BS) specified by our clients.

SEMASO is founded in 2016 as a sister company of the renowned Dutch company Wiertsema & Partners BV and Marine Sampling Holland BV (specialized in geotechnical investigations, laboratory analysis and geotechnical consultation) and in close cooperation with Ravensrodd Consultants Ltd (finding solutions to fine cohesive sediment problems). The HQ of SEMASO is situated in Tolbert in the Netherlands. The team of SEMASO consists of a number of experts, often the inventers of our generic Sediment Management Systems, and has acquired a network of experts within this field.

consultancy

Consultancy

fieldwork

Fieldwork

laboratory

Laboratory Analysis

References

2017 – Feasibility study for Liverpool Docks – Phase 1 (UK)

2017 – Feasibility study for the port of Bushehr (Iran)

2017 – Sediment characterization in Breebaart polder (NL)

2017 – Erodibility of sand-mud mixtures at the bottom of tidal channels (NL)

2017 – Dispersion behavior of dredged sediment (NL)

2016 – Ripening factor –Determination of the ripening factor of dredged material

2016 – Leer (DLD) – Case study of the implemented under sediment pump

2016 – Ebrie Lagoon (Ivory Coast) – Laboratory analysis on sediment samples – BMT Argoss

2015 – Delfzijl (NL) – Phase 3 Second full scale field test – Sailing with negative underkeel clearance – Groningen Seaports

2015 – Watchet (UK) – Rheological investigation of harbour sludge

 

Downloads

2017 – Sednet conference – Erodibility of sediment poster

2017 – Sednet conference – Sailing through mud poster

2017 – Sailing through mud VIDEO

2016 – Article Land + Water – Cost efficiënt maintenance dredging of mud

2015 – 4th MASHCOn conference – Publication ‘Sailing through mud’

2015 – Sednet conference – Sailing through mud poster