The pictures were taken by one of the construction participants. It shows that above construction site the arch of the future crossing is already rising. The huge metal structure impresses with the size and scale of the work done.
70% of the navigable arches of the Crimean bridge have already been installed on the Kerch side, the deputy said CEO for infrastructure projects of Stroygazmontazh LLC Leonid Ryzhenkin.
“The navigable arches of the Crimean bridge are now being assembled on the Kerch side on slipways. More than 7,000 tons of metal structures have already been installed. This is 70% of the total,” Ryzhenkin said.
railway arch weighs almost six thousand tons, and the automobile one - four thousand tons, the length of each is more than 200 m. These are the most overall structures of the Crimean bridge. Roll-out piers are also being built there, along which the structures will be lowered to the water and transferred to pontoons. Work on the enlargement of spans is carried out around the clock. More than 500 people are involved in them.
Recall that in early April, the head of the Ministry of Transport Maxim Sokolov reported to Russian President Vladimir Putin that the bridge across the Kerch Strait was being built ahead of schedule. The minister noted that more than half of the piles had already been driven in and said that the equator had already been crossed over the Crimean bridge. It was also added that this is a truly important strategic object of Russia, on which efforts were concentrated to the maximum.
The bridge, which will connect the Crimea and the Krasnodar Territory, will pass between the Kerch and Taman Peninsulas, through the island of Tuzla. According to the plan, road traffic will be launched in 2018, and rail traffic in 2019. It will be not only the longest bridge in Russia, but also in Europe, in ready-made its length will be 19 km, and it will “bypass” the now leading Portuguese road bridge Vasco da Gama, whose length is 17.2 kilometers.
SIMFEROPOL, August 29 - RIA Novosti, Maxim Groznov. The railway arch of the bridge under construction across the Kerch Strait weighing 6,000 tons is fixed on fairway supports at a height of 35 meters above the water level, the Crimean Bridge information center reported.
The operation to install the railway arch span of the bridge across the Kerch Strait began on Sunday morning, shipping traffic in the strait was suspended for 72 hours. The arched span, 227 meters long and 45 meters high, was transported to the fairway supports with the help of floaters. Late in the evening on Monday, the arch was lifted with the help of powerful jacks, which was successfully completed on Tuesday morning.
"The railway arch of the Crimean Bridge has been raised onto the fairway supports and securely fixed at a design height of 35 meters from the water. The ship and aeronautical signaling system is already working on the structure. The final installation on the fairway supports will take another three weeks," the report says.
"The production of the arch, its assembly on stocks during the year, the manufacture of the floating systems on which it was loaded, the fixing of the arch on powerful fairway supports: all together - this is a unique operation. We have gathered the best specialists who were able to do this, and we are very grateful to them for this," Arkady Rotenberg, Chairman of the Board of Directors of Stroygazmontazh LLC, quotes the information center.
© Infocenter "Crimean Bridge"
© Infocenter "Crimean Bridge"
The floating supports, with the help of which the arch was towed, returned to the Kerch coast for testing and re-equipment. After carrying out the necessary procedures, it will be transported and installed road arch weighing 5 thousand tons. As a result, two arched spans will rise above the fairway, under which ships will pass unhindered, the Crimean Bridge information center noted.
The bridge across the Kerch Strait, which will connect the Crimea and the Krasnodar Territory, will be the longest in Russia - its length will be 19 kilometers. The start of traffic on the bridge is scheduled for December 2018.
The pictures were taken by one of the construction participants. It shows that the arch of the future crossing is already rising above the construction site. The huge metal structure impresses with the size and scale of the work done.
On the Kerch side, 70% of the navigable arches of the Crimean Bridge have already been installed, said Leonid Ryzhenkin, Deputy General Director for Infrastructure Projects at Stroygazmontazh LLC.
“The navigable arches of the Crimean bridge are now being assembled on the Kerch side on slipways. More than 7,000 tons of metal structures have already been installed. This is 70% of the total,” Ryzhenkin said.
The railway arch weighs almost six thousand tons, and the automobile arch - four thousand tons, the length of each is more than 200 m. These are the largest structures of the Crimean bridge. Roll-out piers are also being built there, along which the structures will be lowered to the water and transferred to pontoons. Work on the enlargement of spans is carried out around the clock. More than 500 people are involved in them.
Recall that in early April, the head of the Ministry of Transport Maxim Sokolov reported to Russian President Vladimir Putin that the bridge across the Kerch Strait was being built ahead of schedule. The minister noted that more than half of the piles had already been driven in and said that the equator had already been crossed over the Crimean bridge. It was also added that this is a truly important strategic object of Russia, on which efforts were concentrated to the maximum.
The bridge, which will connect the Crimea and the Krasnodar Territory, will pass between the Kerch and Taman Peninsulas, through the island of Tuzla. According to the plan, road traffic will be launched in 2018, and rail traffic in 2019. It will be not only the longest bridge in Russia, but also in Europe, its finished length will be 19 km, and it will "bypass" the now leading Portuguese road bridge Vasco da Gama, whose length is 17.2 kilometers.
As soon as it was possible with great difficulty to resolve the previous incident - catastrophic heating, having compensated for it with additional capacities, transferred in an emergency order from Siberian hydroelectric power plants, when a new misfortune appeared ...In general, the installation of the road arch of the Kerch bridge, announced for October, will not take place.
As it turned out, when ordering metal structures at the British shipyard Vosper Thornycroft Group (Vosper Thorny croft Group, or VT Group), one of the few in the world specializing in non-standard large-sized objects, an unlikely, but expected error occurred.
When specifying the dimensions of the arch, the customer (Russian Ministry of Defense) did not explicitly specify the units of measurement, as a result of which standard British units - yards - were used in production. At the same time, the original specifications assumed the use of a meter.
The mistake was not noticed until the last moment - when the arch, the details of which were delivered from Britain to the assembly slipway on Taman by transport aircraft, was tried to be moved to transport pontoons after the assembly was completed, it turned out that its length was only 91.44% of the design (207.57 m instead of 227) , in strict accordance with the ratio of yard and meter. The move was attempted on 19 September.
At the same time, the customer does not have the opportunity to demand the correction of the mistake made, or the return of the 600 million pounds sterling paid for the work, since all the actions of the contractor were previously agreed upon in an implicit form.
Now there are several scenarios for the development of events, the most likely of which (in descending order of probability) are:
Refusal of further construction of the road part, with the organization of transportation of cars on railway platforms-car carriers, and the organization of paid parking lots for 20 thousand cars on the constructed part of the road bridge. The author of the proposal is the Australian architect Samuel Hood (Samuel Hood), who took part in the development of the famous project of the Sydney Opera House.
Installation of a car arch in the form of as is (as is) on the so-called additionally built in the middle of the fairway. oscillating support, in the lower part of which a hinge will be placed, providing the possibility of horizontal movement of the upper part. At the same time, the autobridge will work in the so-called. flickering mode, i.e. as traffic accumulates in one direction, the arch moves between the supports, and the traffic continues to move, at the same time, in the new position of the arch, it is filled with an already oncoming flow, after which the cycle repeats
Insertion of an automobile arch into an already installed railway arch, to the maximum possible length from one of the supports, with the organization of an automatic (or manual) controlled crossing at the point of insertion, providing real-time separation of auto and railway flows
Perhaps, as an ultima ratio, an attempt will be made to jointly perform a ritual of the Buryat Dalai Lama Tubden Tsyrendolgor and the supreme Mansi shaman Mir-altyn-khum, who have already arrived at the scene of the incident.
Mansi supreme shaman Mir-altyn-khum
In a similar situation, during the construction of one of the Moscow metro stations on the lilac branch, they thus managed to increase the diameter of a batch of tubing from 12 m to 14.
However, now a positive outcome seems, although not impossible, but unlikely.
In any case, whatever decision is made, the impossibility of ensuring the declared bandwidth(20-40 thousand cars and up to 50 pairs of trains per day), a significant delay in the completion of construction to the right and its (construction) rise in price by at least 40.4% of the established estimate (228 billion rubles) are quite obvious to those who understand .
P.S.
If suddenly someone has not caught up, then this post is a banter on the topic "There is no bridge."
The author needs to write for "Censor.net" under a pseudonym. I would have been in the top three cult ukroanalysts for a long time. Again, the earnings are true, and not just fun))).
Proof of this is the current operation to install a road arch span, which has no equal in the world - a multi-ton metal structure 227 meters long is brought in from the sea to be installed on fairway supports to a height of 35 meters. You can’t call it otherwise than a miracle of technology. The idea to build a crossing across the Kerch Strait has existed since time immemorial, probably even when, in 1783, Prince Potemkin annexed the Crimea to Russia. But communication with the peninsula in this direction for a long time was only ferry and shipping. Military sappers erected a ferry crossing here at the end of the Great Patriotic War, after the liberation of the Crimea from the Nazi troops.
But in 1945, the pontoon bridge was destroyed by the movement of ice, which moved from the Sea of Azov. The design itself, intended for river crossings of short length, was not adapted to sea conditions. It was decided to completely dismantle the building and design the construction of a new, more reliable structure.
However, neither in 1949, nor in 1991, the developed and even approved projects for the construction of a bridge in the Kerch Bay did not receive their real implementation. The complexity of the technical execution of projects (and there were several of them) and the lack of such large-scale funding also affected. They were satisfied with land communication, road and rail, through the territory of the then Ukrainian SSR, present-day Ukraine - then there were no problems on its part.
They returned to the topic of building a bridge in the Kerch Strait in 2003, when Ukraine was already fully slurping its “independence” and considered Crimea its “original” territory. Because of the intention on the part of Russia to build an artificial dam to the island of Tuzla, a serious conflict arose with official Kyiv. More than ten long years remained before the return of Crimea, and the scandalous situation hushed up on its own. But even then it became clear that the historical identity of the peninsula would be restored sooner or later. What, in fact, happened as a result of the popular referendum in 2014. And after just some three years, Crimea had the opportunity to receive reliable communication with the mainland.
“It took quite a long time to figure out how to build a bridge across the Kerch Strait,” says Alexander Komarov, an expert and a former official representative of the Russian Railway Troops. - Several projects were envisaged, where the length mattered, because a kilometer of the highway on the ground and over the sea area have significant differences, including in terms of cost. The main construction options included the following projects. "Northern" - from Cape Lantern to Small Kut. The length of the structure would be at least 10 kilometers, while the railway line would have to be pulled 24 kilometers, and the automobile line twice as much. The Zhukovsky route could connect Zhukovka and the Chushka Spit - there are only 6 kilometers, but the access roads of all types of transport are very long. The Yenikalsky project was supposed to stretch from Cape Yenikalino to the Chushka Spit, but even here, with a relatively short distance, everything rested on long-distance access roads. The "Tuzla" direction was seen from Cape Ak-Burun to the island itself - also a very long way. But it was he who became decisive in choosing the site for the construction of the bridge. There are a number of circumstances that made it possible to choose this direction. The new bridge here will not interfere with the already existing ferry service through the ports of Kavkaz and Krym. Again, there are opportunities for further development, including through space for accommodation building materials. There are opportunities to further ensure the operation of the new bridge. Figuratively speaking, linemen also need to be based somewhere, and preferably in the immediate vicinity of the road.
It is already clear how the Crimean bridge across the Kerch Strait is being built, and the installation of an arched automobile arch is almost in live and this can be seen in TV news, including on the Zvezda TV channel. Let's briefly look, or rather recall, some of the characteristics of this unique design. The total length of the bridge across the Kerch Strait will be 19 kilometers. Its construction began simultaneously with 8 points. The length of the offshore sections from the Tuzla Spit to Tuzla Island (there is 6.5 kilometers of land) and from the island to Kerch will be 13 kilometers. For the construction of the bridge, about 600 supports and more than 5.5 thousand piles of various sizes are used.
“It is impossible for a non-professional to visually assess the scale of such construction, the picture in TV programs cannot convey the complexity of the tasks performed by bridge builders,” Alexander Komarov continues. - This is not just a huge amount of work, but also the genius of the technical thought of our engineers, the uniqueness of the equipment, including six-hundred-ton jacks, which are now involved in the installation of the arch of the automobile span. It is no coincidence that the Crimean bridge is now called the "eighth wonder of the world" and there is no exaggeration here. But if the construction of the Tower of Babel, a failed miracle of architectural thought, led to a misunderstanding of people who speak different languages, which prevented the construction of the "tower to heaven", then the bridge across the Kerch Strait, on the contrary, becomes a symbol of unity and friendliness between people.
The Crimean bridge across the Kerch Strait promises to be the largest in Europe. Now the longest bridges in Russia are located in St. Petersburg - the Southern Flyover of the Western High-Speed Diameter, which is a two-story bridge across the Sea Canal and a cable-stayed bridge across the Ship Fairway (9378 meters), as well as the Northern Flyover (8794 meters).
In the world practice of building bridges, the championship is held by China, where the Danyang-Kunshan viaduct is located, railroad bridge, which is part of the Beijing-Shanghai High-Speed railway, with a length of 164 kilometers. The Qingdao Bridge across the Jiaozhou Bay was also built there, the length of which is 42.5 kilometers. There are long bridges in the USA, Egypt, Japan.
With its more "modest" 19 kilometers, the Crimean bridge impresses not with its length, but with the uniqueness of technical technologies, in which one of the main ones is the construction of arched spans at high altitude. After all, the Kerch Strait connects the Black Sea with the Sea of Azov and there is active shipping, including large-capacity dry cargo ships and cruise liners, which will easily fit under the new bridge. And it really has no analogues in the world.
