Reinforced Retaining Wall Solution: A Key Component in the National Highway 7 Project

The Mechanically Stabilized Earth (MSE) Wall is a structural system made up of layers of compacted fill and reinforcement, anchored to a wall face. Its stability results from the interaction between the filling material and reinforcement, where the frictional resistance increases the tensile strength of the soil mass.

With extensive experience in supplying and constructing reinforced retaining wall systems for key transportation projects—including the coastal road connecting Lien Chieu Port (Da Nang), the Tran Quoc Hoan intersection (Ho Chi Minh City), and the Bien Hoa – Vung Tau Expressway, etc., Vinh Hung continues to apply this proven solution at National Highway 7, particularly at the bridgehead area of the railway overpass from Km2 to Km2+800.

Some sections of the railway overpass from Km2 to Km2+800 have been completed with the Reinforced Retaining Wall installation.

The reinforced retaining wall system constructed at the site consists of three main components: facing panels, polymeric reinforcement strips, and selected backfill material. Precast concrete panels are integrated with high-strength polymeric reinforcement strips and selected backfill to form a robust and aesthetically pleasing wall block. This system enhances load-bearing capacity, increases structural durability, and ensures long-term safety for the project.

Driven by the spirit of "overcoming the sun and the rain," "working not only by day but also by night," and "eating quickly, sleeping urgently," Vinh Hung’s engineers and workers are operating around the clock 24/7 with the determination to complete the Reinforced Retaining Wall section and hand it over to the investor by the end of March 2025.

The left bridge segment is under construction with determination to ensure the timely and high-quality delivery of this critical infrastructure component to the investor in March 2025.