Stop navigation had on one of the sections of the channel name of Moscow. Problems arose again in Tushino tunnel. Where six years ago the water had washed away the soil, flooding the highway. Rebuilding the dam continued for a few months, and now again in need of repair.
this time the leak occurred on the North side of Tushino tunnel. To roadway, water to get did not, therefore, traffic block is not steel. Restoration work here in shifts.
Around the tunnel installed sensors that measure the water level. And they helped to detect the leak and to avoid flooding of the tunnel. The accident occurred in this place. Experts urgently dumped all the water, opened the bottom and found a hole with a diameter of about 20 centimeters.
the Riverbed in this area had already completely disassembled, built a temporary dam. In the next few days to start laying a protective layer of sand and clay.
problems of this part of the canal named after Moscow began with gross errors in the design and construction of the tunnel in the early 2000s.
“the Drainage system had to be provided along the tunnel, which was not done. The drainage system should be according to all norms and requirements in the form of backfill. This compacted sand, corresponding building codes and regulations. During the excavations we found in these sinuses debris”. – says the head of the Tushinskaya district of hydraulic structures of the canal named after Moscow Maxim Suvorov.
for this reason, a year and a half ago on the South side of the tunnel water fountain with sand and clay is poured directly on the roadway.
Then on recovery took six months: he put a protective layer reconstructed the dam in July 2019 resumed navigation. Here is a new crash.
“Emergency repair work was, but there are two versions of events. Or they were carried out well enough in that particular place, or the additional possibility appearanceInnovene leaks — constant vibratory loads that go from passing vehicles in the tunnel and walking courts” — the Deputy head of the Federal Agency of Maritime and river transport Konstantin Anisimov.
restore the Problem area on a temporary basis. Navigation is expected to open in July 2020. Meanwhile, cargo ships are forced to make a detour 1,200 kilometers through Nizhny Novgorod and Yaroslavl. And in 2021 it will begin large-scale reconstruction, all engineering calculations will be eliminated.
