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Groupe Marais. We build Tomorrow's networks. Key figures. 49 years' experience Over 100 employees 40m€ turnover in 2009 30% of turnover generated abroad 30 000km of telecom and energy networks installed over 10 years in Europe, Africa, America, Asia and Oceania - PowerPoint PPT Presentation
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Groupe Marais
We build Tomorrow's networks
Key figures 49 years' experience Over 100 employees 40m€ turnover in 2009 30% of turnover generated abroad 30 000km of telecom and energy networks installed
over 10 years in Europe, Africa, America, Asia and Oceania
5% of turnover invested in research and development every year
Subsidiary in Algeria, Morocco, Tunisia, South Africa, Australia, Middle East, Malaysia
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Key figures 2,500 km in West Africa (Gabon, Guinea,
Sierra Leone, Mali, Burkina Faso)
6,000 km in the Maghreb (Morocco, Algeria,
Tunisia, Libya)
3600 Km in Europe
1,500 km in South America
(Colombia, Brazil, Ecuador)
4,800 km in Central America (Cuba,
Mexico, Santo Domingo)
2,500 km in North America
(Canada, USA)
500 km in the Middle East
(Saudi Arabia, Yemen, Lebanon)
1000 km in South Africa
300 km in Australia
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Marais technologies
Experience and capabilities
Trenching
Cable laying
Backfilling
Mechanical Laying
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Marais technologies
Experience and capabilitiesFlexibility
9 cm
60 cm
850- 1300
1,3 m
2,5 m
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Key aims of Marais technologies
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Continuous screening of the trench: the layer• Keeps the geometrical features of the trench
• No material falling while the network is being laid
• No decompaction of the surrounding ground
• Quality of the trench bottom: the shoe
The mechanical laying with the Marais wheel: Advantages against a traditional laying process
Increase Work Quality
Key aims of Marais technologies
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Laying quality of the network
• Constant depth; the wheel cuts both hard and soft materials
• Constant altimetry and planimetry during the laying of the network
• Compliance with the admissible bending radii all over the laying operation
• Compliance with the cover (constant load applied to the network)
The mechanical laying with the Marais wheel: Advantages against a traditional laying process
Increase Work Quality
Key aims of Marais technologies
Constant and reduced width of the trench
•Constant metric construction cost
•Less materials to be excavated
•Less materials to be backfilled and compacted
•Reduced repair of the surface
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The mechanical laying with the Marais wheel: Advantages against a traditional laying process
Increase Work Quality
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Mechanical Laying
Laying Box
Chain trenchers
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Deep trenches
• Machines dedicated to wide trenches opening
• All machines have a conveyer
• Easy reuse of the excavated materials
• Same machine in soft and hard soils
• Could be adapted to mechanical laying
• Control of the quality of the trench
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Type of Wheel Cutting widths Cutting depths Type
SMC 200 280 to 480 mm 1350 mmWheel
Mechanical Laying
SMC 500 280 to 500 mm 1 550 mmWheel
Mechanical Laying
SMC 500 C 400 to 900 mm 1 000 to 2 500 mm
Chain
SMC 700 C 1 060 to 1 300 mm
2 000 to 2 500 mm
Chain
Average Output : 800 – 1000 meters per day
Groupe MaraisThe Marais Group remains at your disposal - thank you.
www.samarais.com
