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Foreigners use special drilling technology, the rig will not be hammered in a polyacale, so the noise will not make life difficult for the townspeople.
It is interesting that in 2002 Algirdas Kamarauskas, who was then working at the Klaipėda State Port Authority as director of infrastructure, took over the breakwater extension project implemented. And now he is hired by a German company and serves as the project coordinator. Our other guide at the pier rebuilding site was the contractor’s representative, Algirdas Žukauskas. According to him, Germans, Belgians and Lithuanians work on this object, and there is also a Polish engineer.
“It just came to our attention then. Smiltynės perkėla leases springs, Klasco is loaded with stones and metal. As there are countless construction materials and preparatory work, everyone has a job, both welders and others,” said A.Žukauskas. Kamarauskas added that only Lithuanian companies are hired for jobs such as the preparation of various steel products.
Tractors are also rented from AB Klaipedos juru kroviniu kompanija (Klasco) for dock reconstruction work. If the machine breaks down on a Saturday or Sunday, contact local companies for repair. By the way, the large pontoon “Simone” was repaired in Klaipeda.
Without reconstruction, there would not be a depth of 17 m.
It will be recalled that the harbor breakwaters are being rebuilt by the German company Depenbrock Ingenieurwasserbau GmbH & CO. KG and a consortium of a Belgian company. His contract with the Port Authority was signed on September 4 of last year. The actual work began on April 11 this year. Work is currently underway on both piers. They will rise between 2 and 2.5 meters.
The 810-meter south pier is being rebuilt, with more work than the north, on which a 162-meter-long underwater wall will be built, and the end of the 200-meter breakwater will be raised to a height of almost 6 meters.
The German company Depenbrock Ingenieurwasserbau GmbH & CO. KG is the prime contractor for the construction of an underwater retaining wall on the north breakwater. The pipes will wrap around those stones, with three ridges between them. According to A.Kamarauskas, the port wants to reach a depth of 17 meters. An underwater wall will be installed and anchored to prevent the north breakwater from “shifting” during dredging. Then the stones will be placed, the pillars will be raised and fixed. Then it will deepen to 17 meters through that wall. Without him, it would not be possible to do so.
Breakwaters are relocated
According to A. Kamarauskas, when the piers were lengthened in 2002, 378 tetrapods were placed at the head of the southern pier. Now they are all transferred to the head of the north dock. Some 300 more new tetrapods are expected to be built for this pier. As the dock rises, its height will increase considerably.
“It has already been seen that the north pier is very tired due to the effects of the waves,” joked A. Kamarauskas.
A.Žilinskas added that around 30-35 percent has already been manufactured at the north dock. plays.
And the head of the southern pier will be made of solid stone. Of those stones that are currently placed in the Klasco area.
“It just came to our knowledge then. We remove all the old stones, make a slope, level and stack some of the old stones and part of the new ones. It can be said that the breakwater is in principle exaggerated. The stones are removed and become to ride correctly: the bigger ones are positioned to withstand bigger waves, there is better filtration, etc. ”, said A.Žukauskas.
According to him, the main task in the summer is to fix the so-called breakwater heads so that in bad weather it is possible to hide and work inside the canal.
Working is not easy
When constructing a subsea retaining wall between large pipes, the ridges will be drilled with a screw drill, the ram will not be used. According to A.Kamarauskas, the use of these foreign technologies will avoid misunderstandings with the population due to the noise caused by the poles. The vibrator will be used, but it will not cause a shocking sound.
And the main pipes will be injected according to another technology, which, among other things, achieves much higher precision. Stones that prevent equipment from being hammered will also be removed using special technology. According to A.Kamarauskas, jobs take time if a stone is produced during forging. And there are, and quite large.
Another thing that complicates the work is that you can only work on one side, since you have to secure the passage of the boats.
“In Klaipeda, the ground under water is very hard and we have to drill. What we did not expect were stones in some places. This is causing us difficulties,” Christian Buhmann, technical director of the project for the German company, told Western Express.
The stones are transported to the object.
Subcontractor – Belgian company “Herbosch – Kiere NV” performs clay stone quarrying, tetrapod transfer, stone laying, clay lifting works. There are 20-25 Belgian workers. He keeps his equipment (tugs, cranes, barges) in Smiltyne, near the dock, operated by AB Smiltyn’s perkėla.
From the Smiltyne side, it is very good to see that in the territory rented by Klasco, many stones are placed on the pier, which will be used to rebuild the piers. Three barges have already been unloaded here. The stones are special, brought from Norwegian quarries. When the piers were extended in 2002, the stones were brought in from Sweden and Finland. Unfortunately, there are no such stones in Lithuania that meet the requirements for such objects. They must be of a certain size and arranged on certain levels, larger in some places, smaller in others, etc.
By the way, many platforms and pipes were brought to Klasco. The contractor pays the company for storage services.
“One of our requirements for the contractor was not to transport the materials to the object, that is, on the docks, by land, so that Melnrage would stay to one side. The contractor that won the bid chose a very good method. It transports the materials by sea, loads them very close to the docks in the Klasco area, then loads them onto the ship with the equipment and transports them to the object, ”said Algis Latakas, Director General of the Port Authority.
A lot of equipment was mobilized
Currently, three contractor trucks are working on rebuilding the docks. The Belgians have 4 barges to transport the stones and several excavators are used to transport the sand to the landfills. The huge Simone pontoon, from which the pipes will be drilled, that is, from which the underwater wall will be built, is already at the head of the north pier. Three huge cranes are mounted on it. Another pontoon will be used to fill the gaps between the ridges.
The machinery, not to mention the cranes and the drilling equipment, is brought in a lot. According to A.Žukauskas, they were mobilized to the extent that they were probably not present in any of the objects.
The container will be removed
Foreign contractors have set up the construction site in Smiltyne on the way to the southern pier. It has an office made of containers and lounges for staff. A total of 54 containers have been used for this. On the first floor – work premises, there is even a meeting room, bathrooms, a kitchenette for employees, on the second floor – living rooms. Each of them has a mini kitchen, shower, toilet.
The Germans will also use residential containers for the construction of other facilities, that is, they will be brought to Germany. And for others, we’ve calculated that if we buy new ones, install them right, and realize at least half the price in two years, it’ll be fine. In the initial period, we invested 250 thousand in these containers. euros, but in the long run it’s worth it, ”said A.Žukauskas.
“We decided for a long time where to install the construction site, because all the work was done in the hall. Therefore, you have to be close to them. There must be a comfortable mooring for the boats with which we take people in those boats and float. At first we thought we should settle on the north pier, but finding a safe place there, knowing what wave was coming from the sea through the port gate, was difficult. When we decided to move here, we obtained the consent of the National Land Service to temporarily lease the area with the help of the client. When we finish the works, we will fix that territory ”, said A. Kamarauskas.
Some of the workers, that is, the permanent crew, live on the ship, that is, the Albatros crane ships. These are sailors and builders who know how to operate that technique. There is no manual work there, everything is done with technique.
The purchased boat is moored at the UAB Klaipėdos laivų ski lifts. “It just came to our attention then. We look at how much it will cost us to rent a boat. If we see that it is worth buying and then selling it, because the sale price will be higher than the rent, then we buy the item and then sell it, ”explained A.Žukauskas.
