Tricky flat jacking operation completed successfully by Hydra Capsule’s purpose-built flat jacking and injection systems.
The works consisted of 21 off. Transfusion flat jacks rated at 40 tonnes.
Therefore all the jacks were interlinked and synchronously loaded to the specified defined loads, displacements/deflection and limits.
Once competed, each jack (which were jacked/lifted/preloaded with hydraulic fluid) was individually transfused using a double-release valve arrangement, to inject grout and release temporary fluid until the flat jack was fully transferred. Find detailed explanation of the above flat jacking operations at http://www.hydra-capsule.com/flat-jacks .
The key element of the operation, is the jack can be accurately monitoring and maintain the original preload and movement with the structural steelwork being subjected to additional loads and/or further stresses.