Construction of Steel Pipe Sheet Pile (SPSP) Foundation

The 4.8 km long Bangabandhu Sheikh Mujib Railway Bridge is the longest dual-gauge double-track railway bridge in Bangladesh over the Jamuna River, connecting Sirajganj and Tangail. Its primary purpose is to improve railway connectivity and reduce travel time between Dhaka and the northern and western regions of Bangladesh. This Project is partially funded by JICA.

Antara Koh was employed by the Main Contractor, Sumitomo Mitsui Construction Co., Ltd, as the specialist Sub-Contractor to carry out the construction of 17 foundation Piers for the Western Part of Civil Works WD2 Package. Each pier was made up by driving of Steel Pipe Sheet Pile (SPSP) to form a cofferdam. The steel pipes were 1,300 mm and 1,400mm diameter and the length of the piles were 77.7m and 79 m, respectively. A total of 587 nos of piles were driven for the 17 piers. The piles were installed in 3 sections. The lowest section of the piles was pitched accurately by using a high pressures water jet and then driven by a hydraulic vibro-hammer. The middle section of the piles was welded by the semi-automatic GMAW welding method and then driven by a hydraulic vibro-hammer with high pressure water jet. Thereafter, splicing for the last pile section was carried out using the same welding method and then driven by a hydraulic vibro-hammer to refusal. Then, the piles were driven to final elevation using either IHC S280 or IHC S350 Hydro Hammer.

Concurrent SPSP works at 3 river piers

Concurrent SPSP works at 1 land pier and 2 river piers

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