Secrets of building a cellar with a high groundwater table

Any construction is best to start relying on the user experience FORUMHOUSE.

In this article we will talk about at what moments should focus, if you plan to build a cellar at a high level of groundwater.

Before proceeding to the construction of the cellar, it is necessary to decide on its structure and size.

Cellars are:

• completely buried;
• poluzaglublennye;
• ground.

cellar size depends on the number of products that are intended to be stored in it. For a family of 3-4 people is enough small room - 1,5h2 meters, pledged to a depth of 1-2 meters. If you plan to store a large number of products, cellar size increases, for example, 3x3 or 3x5 meters.

The cellar can be any shape - square, rectangular, flat or vaulted ceiling, but the choice cellar constructions, primarily depends on the type of soil on a site and depth of ground water.

With a high groundwater table should think hard about how and whether to build a completely buried cellar. After the spring of this cellar could become a real pool.

Suhinichanin (User FORUMHOUSE):

- My neighbor each spring for several days sucks water from the cellar under the house. I warned him that our groundwater levels to dig deeper and to arrange a cellar or basement is useless.

Kate(User FORUMHOUSE):

- My husband and his father made a cellar under the barn. GWL high, perched there. On waterproofing probably already used up the whole machine tar. All to no avail, the water found the place, the cellar was flooded, and the water in it has been around for several years.

To avoid this, first of all it is necessary to perform a series of measures related to the drainage system of surface and ground water, which is arranged drainage system.

For example, in the floor of the cellar make the pit, it is inserted into the drain pipe that goes to the depth and drains water.

Another option - is to drain cellars at supporting plates. Cellar girded drainage pipe which goes under a bias in the distal end portion. Also for pumping water, if it is impossible to arrange a natural slope, can be embedded in the drain pipe of the drain hose from the pump, which will pump water.

If the high water table area, then in the construction of the cellar to do good drainage!

In addition to drainage also need to seal the well cellar.

vlad55(User FORUMHOUSE):

- I once helped his cousin to build a cellar under the garage. Garage located on an artificial lake. The water level in the lake is subject to seasonal fluctuations of up to 1 meter, so that the wall of the garage can be heard the sound of waves.

Dig a cellar and make a reliable waterproofing in such conditions - not an easy task. Validating done so: in the spring, in May, when the water level in the lake has dropped, the builders dug a hole under the future cellar, made formwork and cast in concrete floors and walls 10 cm thick.

Two weeks later, when the concrete has gained strength, builders molten bitumen missed floors, walls, cellars corners, and on more hot bitumen, waterproofing stuck.

Strips waterproofing are glued in two layers: one layer - and one along - crosswise. Thereafter, inside the cellar again erected formwork and filled second walls and the floor thickness of 8 cm. So, get the pilot controlled check valve between the two concrete layers. Forumchanin with the words, from the time of construction it's been 35 years, and in the cellar there is a drop of water!

Furthermore hydroprotection at cellar apparatus should be aware of the phenomenon as squeezing or surfacing structure from the ground due to frost heaving force and the presence of nearby ground water. To hedge, you can perform the calculation.

viktor50 (User FORUMHOUSE):

- Calculate "pops" cellar or not, is quite simple. Concrete average weighs 2.5 tonnes per 1m3. Assume cellar size is 3h2h2 meter. On this basis, it will amount to 12 m3h2.5 = 30 tons. Assume that the thickness of the walls at the cellar is 20 cm. Based on these data, we calculate the volume of the cellar walls and find the mass: 5.6h2.5 = 14 tons.

Given the buoyant force when the groundwater level is not greater than 1 meter, with a cellar weight not pop up. If the groundwater level is higher and above the cellar there is a thick layer of earth, the structure can squeeze. To avoid this and to do more wall thickness (to increase the weight of the cellar), you can anchor it. For this purpose the base is 20 cm wider cellar during concrete pouring than a distance between outer walls. For example, if the walls are filled with 2x3 meters, the size of the base is 2,4h3,4 meters. As a result, the structure around the perimeter of the protrusion is obtained. Because cellar is filled with soil, which is compacted, then, thanks to the projection, cellar securely anchored like foundation TISE.

There are times when even the quality waterproofing and drainage are not saved from flooding the cellar. And then comes in heavy artillery - the so-called cellar caissons made of metal or plastic. Their main drawback - the high cost.

Spdim (User FORUMHOUSE):

- The price of welded 3 mm stainless steel caisson cause to doubt the necessity of such a cellar.

Alex 1 (User FORUMHOUSE):

- I have cooked caisson under the cellar of 3 mm steel sheets measuring 2h3h2 meters. Smeared all waterproofing wall. I have a high level of ground water, I remember that we had all the time to pump out the water from the pit dug. When the caisson installed, I overlaid on all sides with clay 20 cm thick. Subtotal: inside the cellar - dry winter temperature + 2 ° C, summer + 5 ° C. But the construction of the cellar, I spent the whole summer! And I did it in the early '90s, when more iron prices were not so high. I do not know what I would have cost the cellar, this is now.

Also in the construction of the cellar is necessary to make ventilation. As the ventilation tube can be used two plastic pipes with a diameter of 15 cm. One pipe starts from the cellar floor, and the second - from the ceiling. This provides traction. One option would be one of the inserted pipe supply and exhaust fan.

Often, if the groundwater level is high, it is better to abandon the construction of the buried cellar and build poluzaglublenny cellar. And it would be better if such do not cellar under the house, as well as a free-standing structure.

Digging a pit for this 4x4 meters and a depth of 1 meter. The bottom of the pit is filled with sand and gravel, with a mandatory layered tamper. The base is filled bitumen layer of roofing material is laid thick and a layer of fiber reinforced polyethylene film (can be used b / y banners). Then, on top of this cake is placed a metal mesh with a cell 10x10 cm and poured concrete layer thickness of 5-8 cm.

OnlyOn (User FORUMHOUSE):

- When I was doing myself poluzaglublonny cellar, under the foundation slab laid polyethylene, and here under the stairs forgotten. I can say that at a time when the plate has dried, the steps were still wet, because sucking water from the soil.

vit678 (User FORUMHOUSE):

- I have a plot in the spring almost standing in water. Caisson made of stainless steel I do not pull financially, as if to cook it from a simple steel, then in 10-15 years he is in an aggressive environment will rust, so I decided to do poluzaglublenny cellar.

Forumchanin removed fertile soil layer. Then, directly on clay, I put the two layers of polyethylene film, filled reinforced monolithic slab 3x3 meter with the addition of a silicate glue concrete. After that vit678on plitevylozhil izkeramzitovogo block cellar height of 2 meters. The roof is in the cellar - monolithic. Expanded clay plastered cement mixture with the addition of a silicate adhesive, a cellar wall are trimmed outside of extruded polystyrene foam thickness of 10 cm.

Thereafter cellar is filled completely ground (nezasypannym only remains entrance leading into the cellar so - called sleeve or trunk). Top for estetki on the cellar can be planted grass. In winter, this design can be used both for downhill skiing kids.

vit678 (User FORUMHOUSE):

- The result is not a cellar and a storage shed, but actually it does not change. Products stored perfectly!

Learn how to build poluzaglublenny cellar users FORUMHOUSE can in this topic. A detailed photo report on the construction of the cellar with an arched vault is here.

here It explains how to destroy the mold in the cellar. And if you go this link you can watch a video about how to make waterproofing the basement with a high groundwater table.

Discuss the article and read other materials devoted to country life you can on the websiteFORUMHOUSE.

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