The Polish metropolis of Mszczonów has turn into residence to what’s at the moment the deepest diving pool on this planet. Quite a few PERI methods had been used for the development of the pool, which has a depth of as much as 45.50 metres. 

One spotlight was the dismantling of the ST 100 stacking towers which had been used to satisfy static necessities. The stacking towers may solely be dismantled after the pool had been crammed with water – not by the corporate’s personal development website workers, however by specifically skilled divers.

From a static perspective, the problem of constructing this submersible system is corresponding to constructing an underground system. The static system of the pool consists of a strengthened concrete ground slab, load-bearing partitions with strengthened concrete piers and monolithic slabs. Quite a lot of geometrically and technologically complicated PERI Formwork options had been used which had been delivered pre-assembled to the development website. The sloping partitions of the diving pool had been constructed with pre-assembled parts of TRIO Panel Formwork, whereas pre-assembled VARIO GT 24 girder wall formwork was used for the round diving tube.

The deep diving tube with an inner diameter of seven.00 m and a basis depth of 40.50 m under floor degree posed the best design problem. The concreting of the pipe rings with an outer diameter of 8.50 metres was carried out utilizing monolithic development in steps of 4.00 metres every. The 25-metre-deep shaft is split into 4-metre-long segments. A hydraulic cylinder supported on VST heavy-duty towers assisted this course of.

“The vertical alignment of the tube of the primary stage shaft was the important thing to success right here, which concerned the usage of particular guides. The person segments weighed 300 tonnes every. A complete of 5,000 cubic metres of concrete was used,” defined PERI design engineer Krzysztof Tyborowski. “Non-axial and irregular settlement together with the collision with jet grouting parts had been an important problem for the structural designer of the development. A hydraulic unit was applied to grasp this problem by securing the precision of reducing of the primary stage.” 

Through the planning section, PERI engineers paid consideration not solely to the static feasibility but in addition to the security of the location personnel. Using pre-assembled PERI methods, in addition to the chosen concreting process, ensured that work was carried out safely always – even within the nice depths of the diving tube.

Along with the diving tube, the underwater viewing bridge can also be one of many highlights of the Deepspot diving system. The bridge solely turns into self-supporting when the pool is crammed with water and the mandatory buoyancy pressure is absolutely current. Because of this, it was essential to help it with shoring till shortly earlier than the pool was commissioned.

It was determined that ST 100 stacking towers can be used to make sure secure load switch. The dismantling of the stacking towers may solely happen after the pool was crammed with water. Skilled divers had been employed for this job, and in a complete of ten hours they dismantled the scaffolding materials, which weighed a complete of three,400 kg, below water and introduced it safely to the floor.