“We are going to begin the restoration, repair and securing of the main sewer in its entire length. This will be gradual and in stages, but we have already started,” he confirmed. AIR the engineer Dario Boscarolone of the owners of the company Santa Fe Waters SA. who carries out the work.
The methodology that will be used is spiraled linnerthat is, a steel ring with a steel rib is placed inside, which self-generates the conduit and is introduced into the current main sewer. Then the outside is filled with liquid cement, this serves to waterproof and give the sewer resistance from the inside out.
READ MORE ► Sinkholes in Santa Fe: ASSA inspects the main sewer
“Here is the problem that we have been having, that is why what happened in Urquiza and July 9, due to the internal pressure, cracks are generated and the liquid begins to be introduced, which drags sediments, generates the sinkhole and falls,” he listed. Boscarol about the collapse that occurred in April on 9 de Julio and Bulevar.
The sections will be carried out 100 meters apart, traffic will not be interfered with, and will begin from Dorrego Street towards the west.Initially, they will work in specific places where they detected problems, such as at the intersection of Bulevar and Necochea.
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The ASSA inspection detected problems on Bulevar and Dorrego.
“There will be intermediate sections that will be done in advance where the optical inspection detected detectors with greater vulnerability, as is the case in Necochea,” said the head of ASSA.
The work is expected to be completed within three years, in which the entire length of the sewer will be covered. “It is a three-year program, because the costs are high. We are going to cover the entire maximum sewer in sections,” Boscarol stressed. These works will provide a durability of the conduit of 100 years.
The work on 9 de Julio and Boulevard
The collapse that occurred in July 9 and Boulevard It will be repaired with steel pipes. These will be introduced into the breaks and in the parts where the pipe is assembled and has no problems. The chamber located above the flowerbed is in good condition and no interventions will be necessary.
Five meters to one side and three meters to the other on 9 de Julio and Bulevar are repaired with steel pipes that are placed in the current pipeline.
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The tasks to finish the work on 9 de Julio and Bulevar will require between 45 to 60 days
The tasks to finish the work will take between 45 and 60 days. “It will be a quick intervention,” before the end of the year it is expected that the spiraling work will be carried out both on 1 de Mayo and in San Jerónimo.
“It is the fastest and most expeditious way to solve the problem. It is not the best long-term solution,” confirmed the head of Assa.
Steel pipes are susceptible to internal corrosion from the acids and vapors generated by the sewage. “We use this methodology to quickly resolve the problem, close the area, cover the hole, repave and allow traffic,” Boscarol said.
“It is expected that the linner spiraling tasks ranging from May 1 to July 9 and San Jerónimo will be carried out in the next six months.
