Helping options for underground structures from grained
Microbial corrosion, or microbiologically determined corrosion (IOC), is "gradual damage to metal or reinforced concrete caused by the metabolic activity of microorganisms." This corrosion damage caused billions of rubles of damage to our water supply systems, especially our storm and sewer systems, although the IOC can occur everywhere where metal and water are found. The search for solutions to eliminate corrosion damage depends on where it happens, why it occurs and how destructive or expensive will be repaired or replaced.
There are several different types of bacteria responsible for the IOC in metals common in soil and water; All of them are classified as aerobic (require oxygen) or anaerobic (oxygen is not required). Sulfatered bacteria (SFB) are anaerobic and are responsible for most of the corrosion caused by "Steel" in sea water; While the oxidizing iron and manganese bacteria are aerobic and most often responsible for fast corrosion and point corrosion in the weld seams of pipelines (even for stainless steel). Microbial corrosion can also occur in plastics, concrete and many other materials.
In the strengthening and sealing projects of engineering tunnels, specialized engineers often deal with a large problem of water infiltration, which causes corrosion damage.And, as a result, the flow of water is constantly increasing in the tunnels.
There are several ways to combat corrosion, including:
- regular mechanical cleaning;
- the use of corrosion inhibitors to combat the growth of bacteria;
- Full drainage and ensuring a dry medium.
What can help Граундтек:
Since the replacement of the tunnel is not an economical option for any operation service, then dehydration of the tunnel (so that it can dry by increasing his service life) is just a solution that is Граундтек teeth.
Plan of stopping water intake in Tunnel:
This plan provides for the introduction of geopolymers into the target zone to fill the voids in the ground around the tunnel, mainly blocking ways of water intake into the tunnel. The discharge points are located through the specified intervals and at a given depth according to the developed engineers of the Граундтек project. The process of depth injection Граундтек reduces the flow of incoming water into the tunnel completely either to the "drip" level, which allows the tunnel to dry, creating a less favorable medium for the IOC and creating conditions for long-term operation of the structure.
Grishina Milana· Dec. 28, 2020
Good day!I understand correctly, it looks like waterproofing?Only if the pipeline is put into operation, and not during installation work?
Akimova Galina· Sept. 28, 2021
And how to keep the pipeline in which inwards do not get a person?Where a person does not fit ...
Aleksej Karpovich (inzhener GROUNDTEK) Sept. 28, 2021
Such pipes are regularly checked or from the inside, the launch of the probe along the entire length and collecting data, or outside (without stopping operation) with the help of ultrasound or electromagnetic equipment, depending on the pipe material
Kulagin Anatolij· Oct. 28, 2021
In St. Petersburg, the actual direction, in the historic center often there is a violation of Livnevok, as a result of organizations that are in the ground floors, suffer from wetting walls.
Sokolov Leonid· Nov. 28, 2020
If I understand correctly, your material envelops the pipeline, creating something like a cocoon!?
Zueva Natalija· Dec. 28, 2020
And what if the location of the pipeline is known only about?
Avdeeva Galina· Sept. 28, 2021
Good day!Corrosion of a bacterial nature on the material of grained as it does not affect?
Ovchinnikova Alla· Nov. 28, 2021
Do you work with private houses?I mean the wells and cellars.
Nazarova Nadezhda· Dec. 28, 2021
And if there is an underground highway for collecting wastewater and on one site there is a regular drawdown ... stop this collector is impossible, and you need to solve the problem ... And what can you help?
Aleksandr Efimchik (inzhener GROUNDTEK) Dec. 28, 2021
It depends on what are the solutions requirements.The first thing is to inspect the collector and clarify its current state and position in space.Next, determine the place of leakage.After that, choose the method of tampony.All this can be done without opening and earthworks.You can even align without excavation.But this is only based on your common input data ...