TITANESQUE: review of the work on the Gimont bypass RN 124 GIMONT bypass, Earthworks Sanitation Roadways Safety equipment (TACE) AGENCY GRANDS TRAVAUX, AGENCY GRANDS TRAVAUX ENROBES, AGT, AGTE ROGER MARTIN GROUP, professional contractor www.rogermartin.fr October 2019: arrival of the equipment Asphalt production plant: CHARME Hypermobility, production up to 450 T/hour CHARME is a subsidiary of the ROGER MARTIN Group RETROFLUX technology 14 trucks of equipment transported from the LOIRE (42) Respect for the environment, Recycling up to 50% 6 weeks of assembly and calibration December 2019: first spade blow Work stopped in March 2020 (Covid-19) Spring 2020: after 2 months of confinement Work resumes in May 2020, communication from the ROGER MARTIN Group for the resume Profession: ROAD NETWORK BUILDER GIMONT Department of GERS (32) Thierry Hugon, Works Director, Agence Grands Travaux You are here on the Gimont bypass, this site is located on the national road 124, between Auch and Toulouse, approximately halfway, the work consists of building a bypass of the town of Gimont to the south by creating a 2x2 lane in the middle of nature. This site, 10 km long, includes: earthworks, networks, roadways and safety equipment, including painting. This site is 100% carried out by the ROGER MARTIN GROUP GRANDS TRAVAUX AGENCY. The topography of the site shows the need to carry out enormous earth movements. Approximately 1,400,000 m3 will be moved and these, up to 21 meters deep. These earthworks require us to put in place considerable energy. The Grands Travaux Agency, which has targeted this case well, has understood the interest in deploying significant resources in terms of materials, but also human resources. It is a challenge, because with the delay suffered with Covid-19, the operation which must be delivered within a very short time frame, requires us to multiply our efforts. With this new organization, this challenge for the major works agency will be met thanks to a formidable team spirit. Earthworks: Excavated material put into Embankments: 1,600,000 m3 2 million liters of GNR (diesel) consumed on site 100% of materials reused on site No external input of embankment materials Maximum output achieved: 24,000 m3 per day The CAT D10 bulldozer pushing the CAT 631G SCRAP weighs 100 tons A SCRAP transports 20 m3, or 45 tons of materials Weight of an empty SCRAP: 47 tons, loaded: 92 tons A CAT 631G scrap workshop can produce 10,000 m3 per day Up to 80 machine operators worked simultaneously Driving these unusual machines requires a certain dexterity and experience The largest mound on the site measures 800 m long, 130 m wide and 21 m deep Volume of this mound: 800,000 m3 (50% of the site) Human Wealth: Maximum workforce on site during earthworks: 92 people 90% of earthworks completed from MAY to October 2020 Let's get back to earth... CAT 769C rigid dumper: empty weight 45 tonnes, loaded 80 tonnes VOLVO A35 articulated dumper: empty weight: 35 tonnes, loaded: 62 tonnes Rock removal of marl: 90-ton CAT 385 excavator equipped with a tooth (9 tonnes) Adjustment of slopes assisted by GPS guidance (by satellites) Creation of drainage trenches Treatment of the platform with quicklime Adjustment of the platform with GPS-guided grader Creation of dry networks (optical fiber) Spring 2021: subgrade treated with Hydraulic Binder: thickness 35 cm July 2021: 1st layer of asphalt (GB thickness: 14.5 cm), 2nd layer (BBSG thickness: 6 cm) The roads were built from JULY to OCTOBER 2021 Maximum application width for the paver: 11.50 m In parallel with the roads, production of EXTRUDED CONCRETE: slotted gutters, ditches and slides cast in place Manufacture and implementation of BBTM (last layer) thickness: 2.5 cm – October 2021 Speed ​​of the paver: between 6 and 8m/min, Adjustment precision less than 1 cm Completion of night work for the WEST connection WEST connection work carried out day and night from January 3 to February 10, 2022 Horizontal and vertical signage completed for February 10, 2022 as planned Inauguration in the presence of Prime Minister Jean CASTEX on February 14, 2022 The first truck on the bypass: February 15 2022 at 3:00 p.m. RD 924 AUBIET – Toulouse-AUCH railway line – Fontenilles interchange – RD4 crossing of Samatan road Future LAFOURCADE interchange With Prestance song by Thierry H: https://bfan.link/avec-prestance-1 https://thierry-h-music.start.page/