Tenders Are Invited For Sewerage Work – Plb Reinforcement Work Between R4 And R5 - Interface With Line 15 Es ... in France

Work Detail

Sewerage Work – Plb Reinforcement Work Between R4 And R5 - Interface With Line 15 Est-2 Of The Gpe. The Operation Concerns The Structural Reinforcement Of The Plb Dn2500 Collector, Located In The Town Of Aubervilliers, Upstream Of The Passage Of The Tunnel Boring Machine For Line 15 East Of The Grand Paris Express. The Aim Of The Work Is To Strengthen The Structure In Order To Guarantee Its Structural Strength And Its Durability During The Passage Of The Tunnel Boring Machine Of Line 15 East-2 Between December 2026 And February 2027. The Main Interventions Include: · Carrying Out Bonding Injections With A Regenerating Effect Over The Entire Relevant Perimeter Of The Structure, I.E. Over 50 Ml (R4+69M To R4+119M); · Structural Reinforcement Of The Impacted Area, By Spraying Reinforcing Concrete (Thickness 6 Cm) Over 35 Ml (R4+76.5M To R4+111.5M); · A Piped Reprofiling Of The Lined Area Over 15 Ml (7.5 Ml On Either Side Of The Impacted Zone) To Ensure The Geometric And Hydraulic Continuity Of The Collector; · Flexible Recovery Of Cracks In The Impacted Area (Approximately 150 Ml, Depending On The Condition Of The Base) Intended To Treat Occasional Disorders And Maintain The Watertightness Of The Collector

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