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What is funnels and why do they arise?

Unfortunately, the funnel of soil failures are becoming more and more common in the Russian Federation due to non-investigated to expand the territories of the development. It is bad news for real estate owners, as it is very difficult to predict when and where they are activated. The failures can be especially disturbing for those who own the house or building in the areas most affected by them. The probability of irreversible damage during failures (collaps) is much larger than with other forms of soil movement, due to the scale and suddenness with which they may occur.

What are funnels and why do they arise?

The failures usually appear naturally and occur after the water gradually blurs the underlying rock. This leads to the formation of a cavity under the ground. The wrapping of soils is getting closer to the surface, and then gradually falls into the funnel, like sand into the hourglass, so the surface layer can no longer support himself, not to mention buildings and facilities. In the end, all this collapses, and a funnel is formed. They are sudden and can be very dangerous. Sometimes, the failures are formed due to the old mining trunks or the cavities like them deeply underground. The company Граундтек devoted himself to filling them out or mitigate the consequences of their appearance, eliminating risks for society.

What are the warning signs of failure?

Ground funnels are a form of sedimentation, which occurs when the soils are seated sharply and locally.As in the case of other types of sediment, you can usually detect warning signs before everything becomes really bad.If you notice some of the following manifestations on your property or around it, then you should contact such an expert as Граундтек to check whether the funnel is not formed:


  • Трещины в стенах (особенно трещины «лесенкой»)

  • Трещины вокруг дверных рам и окон

  • Расширяющиеся трещины (от одного конца к другому)

  • Наклон деревьев или столбов

  • Провал образующийся на земле или подъездной дорожке

  • Внезапное осушение водоёма

  • Неровности в полу или плите покрытия

  • Гибнущая растительность в локальной зоне

Of course, these things may be signs of less than strong or extended natural settlement.However, to dispel doubt, it is best to be on the safe side and check it out.

Company specialists can visit your property to evaluate which scales of the project are needed to return your assets in their original condition, if there is a risk of settling or failure.Please contact us to arrange an object's audit without any commitment.While visiting, we will examine the object and talk to you to develop a better solution for your specific problem.

How can I prevent the appearance and distribution of failures?

The failures are prevented by protruding the problem area and strengthen the grounds of the base before a large hole appears and this will lead to the fact that the soil fails inside. Граундтек specializes in improving the characteristics of the soil inside and around real estate objects, including both preventive measures by strengthening or enhancing a soil base. Our work on strengthening the soil is carried out using the resin injection method developed by us. We introduce a geopolymer resin into the affected area, then it binds to the soils and compacted, which allows your property much more efficiently withstanding any funnel. The basis increases its ability to withstand the weight of buildings, and thanks to the expansive strength (expansion strength) of our materials we can return your property to its original position.

repair work after incident with failure

Граундтек can also carry out repair and recovery earthworks where the soil failures have already occurred.Here we also use our innovative method of injections of geopolymer resins to stabilize the soil and its recovery.

Published: Nov. 2, 2020 by author Groundtek

14 сomments

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Hudjakov Ivan· Dec. 17, 2021

And how to determine the presence of funnels before they manifested themselves?

5 thumb_up

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Evgenij Novitskij (inzhener GROUNDTEK) Dec. 17, 2021

The article presents signs of a dangerous state.

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Zhukova Milana· Nov. 26, 2020

And what can be done if the funnel was formed?

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Evgenij Novitskij (inzhener GROUNDTEK) Nov. 26, 2020

Unfortunately, only global repairs with a native of new construction.To avoid the formation of a funnel to track and catch at the initial stage, conducting regular examination of buildings and structures (planned and unscheduled, if you find negative signs)

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Dorohova Svetlana· Dec. 5, 2021

Does your company explore to the buildings?

4 thumb_up

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Aleksej Karpovich (inzhener GROUNDTEK) Dec. 5, 2021

Yes it is possible.But it all depends on the scale of construction.If a large scale construction, then even legislation requires full-scale geological research on the basis of the future of a multi-storey building or other "multiplayer" building

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Zhuravleva Tamara· Nov. 11, 2021

Is it possible to help in such cities like Solikamsk and Bereznyaki?The mines were developed there, as a result, the failures are formed and all the houses crack

10 thumb_up

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Aleksandr Efimchik (inzhener GROUNDTEK) Nov. 11, 2021

Of course, you can help, however, on different scales, depending on the current ground conditions.And about the financial question should not be forgotten - these are the tremendous costs of funds

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Chernjaev Vitalij· Nov. 12, 2021

What is included in the building survey by Groundtek?What conclusion on the results of the examination will I get?

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Aleksandr Efimchik (inzhener GROUNDTEK) Nov. 12, 2021

You will receive technical reports and recommendations for the correction of identified problems.You will also get a commercial offer and forecoming the solution you have setting the task.

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Soboleva Galina· Nov. 4, 2020

At my site 2 times, karst failures were formed, a diameter of up to 10 meters, how can I prevent such, and is there a method for finding possible karst failures?
Suddenly, under the house, also turns failure?

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Aleksej Karpovich (inzhener GROUNDTEK) Nov. 4, 2020

This is a difficult question for an unequivocal absentee response.Please contact the main office.We are confident that our team of engineers will be happy to disassemble you

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Panteleeva Nadezhda· Nov. 28, 2020

In this problem, the main thing is to identify the problem on time ... She is always a surprise to climb outside ... and it's hard to do something for a large account so that there is no expensive consequences ...

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Aleksandr Sinchenko (inzhener GROUNDTEK) Nov. 28, 2020

Yes, unfortunately, the nature of the process is very stochastic ... because this process is possible to catch only at the time of the inspection, hence the conclusion - thoughtful prevention is quite capable of withstanding destructive surprises.

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Prokof'eva Nadezhda· Nov. 13, 2021

It is rumored that all Moscow stands on the carstry, is there a danger to the white-name?

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Aleksej Karpovich (inzhener GROUNDTEK) Nov. 13, 2021

This is too general approval.Where it is known for preventive measures to reduce risks before construction.If the risk is still realized, then they resort to a reactive solution, because it is an outward "danger" exaggerated

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Zubov Georgij· Dec. 9, 2021

We have groundwater close to the surface.How to check whether water carries the danger to our home?

2 thumb_up

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Aleksandr Efimchik (inzhener GROUNDTEK) Dec. 9, 2021

In your case, it is necessary to organize monitoring and monitor changes to the state of the base with time on one selected in advance method

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Kurochkina Alla· Nov. 15, 2020

And the dips in the auto roads can also eliminate?!

6 thumb_up

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Aleksandr Sinchenko (inzhener GROUNDTEK) Nov. 15, 2020

Yes sir.This kind of danger is eliminated by GrUNDTEK technologies

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Zlobina Alena· Dec. 6, 2020

In which regions such failures are common?

3 thumb_up

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Aleksandr Efimchik (inzhener GROUNDTEK) Dec. 6, 2020

The list will not work out.There are special cards for this, and they are not regular, but updated

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Vinokurov Vitalij· Nov. 21, 2021

Yes, well ... on the soils with the natural education of the funnels in general, it is forbidden to build ... The question is that they are artificially formed in cities due to human intervention and digestion

7 thumb_up

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Aleksandr Sinchenko (inzhener GROUNDTEK) Nov. 21, 2021

Here, as they say, "no comment.":)))

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Fomin Matvej· Nov. 24, 2021

The funnels are this ... it is not clear until you encounter with my own eyes ... I drove along Minsk and right in front of me part of the asphalt went underground ... The feeling was not transmitted!

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Aleksandr Sinchenko (inzhener GROUNDTEK) Nov. 24, 2021

Yes, it is relatively rare in the life of every person the phenomenon, but in the scale of even the city this danger is quite relevant

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Orehova Natalija· Dec. 9, 2020

Good day!I read your article, and from 8 signs of funnel I have 5. What to do?Urgently call a specialist?

9 thumb_up

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Aleksandr Sinchenko (inzhener GROUNDTEK) Dec. 9, 2020

Contact our representative to you

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