Seawalls and Shoreline Structures
2020
HAZIRA - GUJARAT - India
HAZIRA PORT PVT LTD
ANTIBUND SEA EROSION PROTECTION
Problem
Hazira port is situated 120 miles of Mumbai and therefore intended to compete with, respectively, āassist and relieving congestionā in Mumbai for cargoes transported between Mumbai and New Delhi. It is nominated as a āgreen fieldā site to be developed through private sector participation. The Dredging International company is mainly dealing with deepening and maintenance programs of the river fairway, and major reclamation projects. During October 2003 to May 2004 the company carried out the civil engineering and Bund works at Hazira port in Surat, Gujarat. The dredging and reclamation works involved 8.3 million cubic meter of dredging.The bunds were built using Geo-bags and they were needed to be protected from Sea Erosion.
Solution
The Contractor has suggested the use of Gabion Mattress as an Apron Protection Work for the bunds which is one of the most practical and viable solutions. M/s. Maccaferri has supplied Zinc + PVC Coated Box Gabions of Size 2m x 1m x 0.6m and 2m x 1m x 1m. The Gabion Mattresses were laid along the sea shore to protect the Geo-bags from getting eroded due to sea water. The Gabion mesh type was 10×12, with wire diameter 2.7/3.7mm, with Selvedge Wire Dia: 3.4 mm / 4.4 mm. The Gabion Mattress structure has performed well and is still functioning to serve the purpose of protection