Client:  Water Resources Project Management Board 408

Location:   Da Nang City

Objective and Objectives and Tasks :

• Erosion control, soil conservation and prevent overflow to protect for 500 hectares of urban land in 2010; currently there are 250 hectares of agricultural land with 134,000 people. –
  • Stabilization of riverbeds for flood discharge, improvement of transportation, and enhancement of environmental landscape in Da Nang City.

Main technical specifications

• Grade of works:          IV     
• Construction stability coefficient [K] =1,15
• Design maximum water level frequency of embankment crest P = 5%
• Maximum wind frequency for wave calculation P = 4% & P = 50%
• Total length of the entire embankment line: 6,770 m
• Crest elevation of the upstream embankment: +2.60 m
• Crest elevation of the downstream embankment +2.20 m

Construction structure scale

• Precast concrete piles with a head section of about 4.5 m long with a T-shaped cross-section, driven at intervals of 1.5 meters. Precast reinforced concrete slabs, 15 cm thick, are placed behind the T-section to act as sand and soil retaining walls
  • The T-shaped piles are designed with a restraint level to prevent the retaining slabs from falling freely. The T-shaped reinforced concrete piles are anchored by a system of anchor cables and anchor plates to ensure safety against lateral forces. The pile cap connects the pile row and forms the structure for the landscape area inside the pile row.
  • The pile cap anchor is made of D40 rebars, L = 15m, placed at a lower elevation, placed inside a plastic pipe and filled with asphalt or metal anti-corrosion glue
• Total investment amount/Construction: 78,80 billion VNĐ
• Duration :
• Commencement : 2007
• Completion: 2011