12 May

The flood protection in Venice “bows” to Camille Bauer KINAX inclination transducers at a depth of 30 meters

Since 2021, Venice has had a functioning flood protection system called Modulo Sperimentale Elettromeccanico, or MOSE, which protects the lagoon city from flooding.

Products from Camille Bauer also made a decisive contribution to the success of the multi-billion construction project. Each of the 78 flood gates is equipped with two inclinometers from the KINAX series, which have to cope with special environmental influences.

Venedig
Photo: Sebastian Baumann

Since 2021, Venice has had a functioning flood protection system called Modulo Sperimentale Elettromeccanico, or MOSE for short, which protects the lagoon city from flooding.

Products from Camille Bauer also made a decisive contribution to the success of the multi-billion construction project. Each of the 78 flood gates is equipped with two inclinometers from the KINAX series, which have to cope with special environmental influences.

Floating barriers stop the water when the high water mark of 110 centimeters is exceeded. The barrier consists of a total of 78 movable elements, 18 at Chioggia, 19 at Malamocco and 41 at the Bocca di Lido. When inactive, the sluices are filled with water and are completely invisible in housings placed in caissons at the bottom of the lagoon. These caissons are embedded in trenches 14 m deep and 50 m wide. They are connected with tunnels that also allow technical inspections. The connecting element between the barriers and the terrain are the shoulder boxes. They contain all the systems and buildings required for the operation of the lock gates.

The principle of flood protection was adopted from the gates of large ship docks. The gates are large steel boxes that are flooded to the brim with water when they lie in their shafts on the seabed. When they are to be closed, compressed air forces the water out and the gates straighten.

Po­si­ti­on Sensor from Ca­mil­le Bau­er

The inclination of the flood gates is controlled and determined by inclination transducers KINAX N702-HART. The housing of the modules is made of INOX 326Ti stainless steel (rustproof) and is completely waterproof according to IP 68. The HART protocol is used as the protocol for sending the information. HART (Highway Addressable Remote Transducer) is the name for a digital communication protocol for field devices. It is ideally suited for transmitting measurement, position and device data.

The decision to use Camille Bauer technology is the robust design of the sensors, which must function for 10 years without maintenance. In addition, a very important argument was that the KINAX inclinometers can function without problems 30 meters under (salt) water.

Historie of Mose-Pro­jects

On November 4, 1966, the water in Venice was 194 cm above sea level. A powerful scirocco (a hot wind from the Sahara towards the Mediterranean) drove seawater into the lagoon. At this point at the latest, the city authorities recognized the urgent need to protect Venice’s world cultural heritage from the flood waters. Almost half a century later, the long-awaited flood protection was finally completed – and products from Camille Bauer made a decisive contribution.

Tourism also caused more flooding problems, as the canals were partially dredged for the ever-growing cruise ships, allowing more and more salt water to enter the city. However, it wasn’t until 1984 that the first feasibility studies were conducted to protect the city from flooding and environmental impacts. The groundbreaking ceremony for the construction was held in 2003 by the then Prime Minister Silvio Berlusconi. However, it was to take until 2021 before the flood protection could finally be completed. Time and again, demonstrations, court cases and corruption delayed the progress of construction. In the end, the project cost just under 6 billion euros, making it Italy’s largest infrastructure project since World War II.

MOSE mit
Source: Wikipedia

Author

Sebastian Baumann
Group Marketing & Communication
Gossen Mertrawatt GmbH

Tel.:          +49 911 8602-372
Fax:          +49 911 8602-80372
E-Mail:    sebastian.baumann@metrawatt-international.com

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