Categories for Trenchless work

Back-up water supply at the Penly and Paluel nuclear power plants…

16 December 2020
Or how to build systems hoping that, just for once, they will never be needed… Securing fuel cooling ponds, in case of pump prime loss, is a key component of our post-Fukushima operations. At Penly and Paluel, the Normandy Regional Division is building the main systems for the Backup Water Supplies (BWS) to tackle this major issue. One process For both nuclear power plants, the BWS works in the same way. The process involves building capable infrastructure, irrespective of events (earthquake, flood, etc.) to route water - via a gravity system, i.e. using zero energy - from the existing basins...
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SADE on a (not so gentle) slope!

4 December 2020
The town of Beauvais is reinforcing one of its main clear wells supplying the town centre. Managed by the Beauvais Agency (Arras Regional Division) in collaboration with Veolia, this worksite involves the reinforcement of the connection of a well, located at the top of a slope, to the catchment wells and distribution system set up downhill. Technically speaking, it consists of the construction on the side of a slope on 30°-gradient (i.e. 60%) terrain over a 30m stretch, of two parallel underground cast-iron ø400 pipes, the first to supply and the second to distribute. A complex worksite The worksite was...
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Three more years with RTE…

25 November 2020
…with SADERTELEC, which renewed its framework agreement with the electricity transmission company. Do we still need to introduce SADERTELEC, our subsidiary that works exclusively for RTE, and whose headquarters are based in Marseille? A little history, all the same… It was back in 2009 that the Marseille Regional Division got in touch with the electricity transmission company, realising that burying very high voltage lines (63 to 400KV) was a fast-growing business. Our initial aim was to offer specific structural services, particularly microtunneling with STS. In 2013, a new entity was created to specifically focus on this business line: SADERTELEC. This...
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News from our girls and boys in Bouaké!

10 November 2020
SADE Group is bolstering Bouaké’s drinking water supply for PFO Africa, head of the consortium awarded the overall contract by the Ivory Coast Hydraulics Ministry. After work began on the site at the end of March 2020, COVID-19 put a real spanner in the works: repatriation, temporary site shutdown, plus new health & safety rules. The project practically ground to a halt for several months, leading to comprehensive reorganisation last July.  Since then, 3 teams armed with an impressive selection of excavation equipment have been working 6 days a week to meet the deadline: two Ø 1,200 teams and one...
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Continuing and getting back to business in Belgium

14 May 2020
In Belgium, just as in France, multiple measures were put in place to combat the COVID-19 pandemic. Let’s take a tour of the SADE Group’s sites across the country during this complicated period. SODRAEP Government measures forced SODRAEP to shut down its worksites, except for a few urgent works deals in public service sectors. A look back at the last few weeks. Mid-March - mid-April During the first 4 weeks of strict lockdown, SODRAEP worked on adapting its working procedures and purchasing new PPE to comply with sanitary measures and optimise its preparations to get back to business. 15 April:...
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Business booming in the Ivory Coast

14 April 2020
With the arrival of drinking water as far as the town of Gagnoa! For the last 5 years, the project to supply drinking water to the towns of Sinfra and Ganoa has been emblematic for the SADE Group, and not just in the Ivory Coast! It is now nearing completion. After the 20,000m³/day treatment plant commissioning phase managed by teams from SIng, Franzetti Ivory Coast rinsed 120km of pipes from the plant to the intermediate uptake plant in Sinfra, then all the way to the town of Gagnoa. The pipes are currently being disinfected, in collaboration with the future operator,...
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Direction: Belgium

18 March 2020
SODRAEP confirms its position at VIVAQUA. Vivaqua (previously Compagnie Intercommunale Bruxelloise des Eaux, i.e. the Brussels intermunicipal water authority) is one of Belgium’s biggest intermunicipal drinking water producers and distributors. SODRAEP, our Belgian subsidiary, is a historical partner of VIVAQUA. Over the last few weeks, it has confirmed its position as a go-to partner for this essential client by renewing all its framework agreements (called marchés stocks or stock agreements in Belgium) to carry out works to renovate, lay or connect sewers in the Brussels-Capital Region for up to 5 years: Connection package: it is ranked 2nd out of 3...
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SADE is also building water towers in Senegal…

11 February 2020
77 over the last 3 years and SADE has no plans on stopping any time soon! These simple, sturdy, 100 to 200m³, on average 20m-high water towers are designed to supply multiple rural communities in Senegal. They previously consumed surface water or water from shallow wells, which are both vectors of multiple diseases and becoming depleted due to the widespread lowering of water tables in this region of the Sahel. In addition to the construction of these water towers, nearly 1,000km of PVC pipes have been laid, plus hundreds of livestock drinking troughs, standpipes for villagers and brackets for carts...
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News from Costa Rica…

11 July 2019
SADE recently won its second deal using both microtunneling and traditional techniques for AyA (Instituto Costarricense de Acueductos y Alcantarillados). The project is called “Construcción de alcantarillado sanitario, colectores sur : desvío Maria Aguilar y extensión aserrí”. It will cost €13.6 million, is funded by the IADB (Inter-American Development Bank), and is set to take 18 months. It involves the installation of sewer mains: 1,660m (⌀ 600mm) using a microtunnel boring machine (MTBM), 915m (⌀ 1,200mm) using a MTBM, 4,533m in an open trench (⌀ from 100 to 1,200mm). Official notice of the award of the Maria Aguilar project has...
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