Temporary cofferdam under a bridge

2023.8.17 Road


Temporary cofferdam under a bridge

Natori, Miyagi, Japan


  • Realizing restoration/reinforcement of a bridge without hindering the traffic above, such as railway and road
  • Construction feasible with a minimum overhead clearance of 1.55 m
  • Reduction in construction period and cost, reducing the number of joints with the use of the chuck mechanism and the hoisting unit

Press-in operation of steel sheet pile

Construction machine usedSILENT PILER™ (CL70)
Type/Dimension46- type IV steel sheet piles, L = 14.0 m (with 4 joints)

Construction plan

Construction section

Soil boring log

International Press-in Association (IPA) The Editorial Committee , Press-in retaining structures: a handbook First edition 2016
*Editing the image with permission obtained.