How to remove water from the foundation of the house. Drainage pipes for drainage of groundwater from the site

Drainage pipes for tapping groundwater today are used almost on each private plot, as well as on the territory of private houses. The complexity of work on the arrangement of the system will be influenced not only by the height of the occurrence of groundwater, but also by the degree of slope of the site, as well as by the terrain. Drainage pipes for draining water from the site are designed to protect technical undergrounds, basements, and other parts of the house from flooding, which can be caused by groundwater, surface runoff and precipitation. If you put the drains in the trenches along the perimeter of the building, you can ensure the drainage of water from the object, eliminating the appearance of dampness and mold, as well as premature destruction of structures.

When a wall drain is necessary

Drainage pipes for tapping groundwater can be needed under different conditions, mainly this need is dictated by the features of the land. But in some other cases, work on the arrangement of drainage systems is shown. This includes the location of some parts of the house below the estimated level of groundwater. Arrangement of such a system may be necessary in the case when the basements are located at a height that does not exceed 0.5 meters from the calculated level of groundwater occurrence. This includes the placement of buried rooms on loamy and clay soils, while the presence of groundwater does not matter.

In order to exclude the flooding of the territory and to limit the flow of liquid to residential buildings and economic structures, a drainage system near the basement is being equipped, which is complemented by a 2% slope, while its width should be one meter along the perimeter of the object. After the drainage pipes for groundwater drainage are laid, it is necessary to make a good soil compaction when backfilling the trench. Waterproofing should be applied to the part of the building that is in contact with the soil. This need does not depend on the absence or presence of drainage of the foundation. If the house is built on sandy soil, which easily passes water to the underlying layers of soil, the wall drainage does not settle. In this case, the soil should not freeze below 80 centimeters.

Methods of removing water from the foundation

If you want to lay drainage pipes for drainage of groundwater, you should first familiarize yourself with the basic technologies for arranging such structures. Thus, there is a closed drainage type, which is a trench with sand and gravel. In the ground, digging out grooves, which are filled with sand and gravel in the sequence listed. In order to achieve a more positive effect, trenches can be arranged in the form of a Christmas tree, the central one of which must be made with a slope directed towards the discharge of water. The distance between the drains should be determined with regard to the composition of the soil. If it is a question of clay soils, this parameter does not exceed 10 meters, for loam this figure is 20 meters, whereas for sandy soils - 50 meters.

Outdoor drainage

This type of drainage is the simplest in the device and cheap in the implementation. In the course of the work it is necessary to equip the grooves, the width of which is 0.5 meters. It will be necessary to deepen by 70 centimeters. Digging of grooves is made around the perimeter of the site, the edges in the drains should be beveled at an angle of 30 degrees. Water from this system will go into the general drainage ditch. If you decide to use this technology, when drainage pipes for drainage of groundwater will be laid, the photo is recommended to be considered in advance, they will allow you to understand that the main disadvantage of such a system is an unattractive appearance that spoils the landscape of the site.

Perforated Piping

Another way to divert water from the foundation is through a perforated pipeline. This technology is the most popular. The drainage will be deep and designed to drain high groundwater. In the soil, asbestos-cement or ceramic pipes are laid, in which holes are pre-drilled. A more modern option is plastic with perforations or drainage systems, ready for laying. The latter you can find on sale.

Alternative solution for removing water from the foundation: drainage trays

If it is necessary to divert atmospheric precipitation from the house, drainage trays can be used, for the arrangement of which it is necessary to apply products made of plastic or modified concrete. Trenches will go from the water receivers to the discharge point, while it is important to provide a small slope, which varies from 2 to 3 degrees. Elements are installed in pre-prepared small grooves, the edges of which must be on the same level with the soil surface. Above the trays are closed with decorative grilles. If the house is on an elevation, then open grooves can be formed across the slope, this will ensure the interception of water that flows from above.

Types of drainage pipes

Before choosing drainage pipes for groundwater abstraction, the GOST of which will guarantee quality, one should understand their varieties. For example, HDPE pipes are made in accordance with GOST 16338-85. When choosing the material of drains, which are perforated pipes, you should be guided by the depth of their laying and the aggressiveness of groundwater. Especially popular today are plastic pipes, which can be made of polyvinyl chloride, low-density polyethylene, high-density polyethylene and polypropylene. The most popular are plastic drains, which are easiest to lay and deliver to the object. Considering the varieties of such products, it is necessary to distinguish the presence or absence of perforation, as well as the purpose for a particular depth of embedding.

Classification of drainage pipes according to purpose

If you are considering drainage pipes for groundwater abstraction, the photos of which are presented in the article, it is first of all necessary to know that they are subdivided according to the field of use. For example, a double-sided pipe has increased strength characteristics, so it is applicable for deep laying in the ground. There are products with a filter that are designed for those places where it is possible to clog the system with small particles and silt the structure. Drainage pipes of large diameter are used in those cases where there is a need to drain large volumes of water. In the arrangement of systems in some cases, there is a need to wrap elements in geotextiles. Considering the types of drainage pipes for tapping groundwater, you will find products that are already supplied with geotextiles, and these elements can be laid to a depth of up to 3 meters. Technical progress does not stand still, on the market today you can find pipes with a filter made of coconut fiber, which allow to achieve a positive result.

Characteristics of Wavin drainage pipes

Choosing the components for the foundation protection system from moisture, you can prefer drainage pipes for the removal of groundwater Wavin. They are available in three varieties: without a filter, with a filter based on synthetic fiber and with a filter made from natural coconut fiber. Elements are flexible and reliable, so they are easy to stack without fear of damage. They can become part of curved trenches and systems with complex design features. This allows you to reduce the number of fittings during installation.

Buying the coils of pipes, at the ends you can see couplings that allow you to connect the elements together without using an additional tool and consumables. Such drainage pipes for drainage of water from the house allow you to save, because you do not have to spend extra money.

Recommendations for the arrangement of a system of diversion of water from the foundation

Stowage of the wall drainage is made from the outside of the building along its contour. The distance between the drainage pipe and the wall will depend on the design width of the base and the location of the inspection wells. It is not necessary to lay the wall drain below the foundation plate or the sole of the tape base. If the structure of the foundation is located at an impressive depth, then the drainage can be placed above the sole, but only with the observance of measures that preclude the drawdown of the elements of the drainage system. When drainage pipes are laid to drain water, you can save on sand. To do this, it is recommended to apply geocomposite materials that have plastic profiled membranes pasted with geotextile. The membranes will protect the base of the building from moisture and will transport the liquid well to the perforated pipes thanks to a unique surface. The geotextile filter will pass water, excluding the passage of particles of the ground to be drained.

Pipe laying

It is necessary to start the work with excavating the trench, its width should be equal to the diameter of the pipeline from the outside, to this value should be added 40 centimeters. In the cross section, the trench may have a rectangular or trapezoidal outline, there should be no foreign objects on the bottom like hard lumps, large stones or bricks, which during operation can damage the bottom wall of the pipe. Initially, a layer of sand is poured onto the bottom, after which a layer of rubble comes. The upper part of the pipe should be covered with a gravel of crushed stone, the height of which is 20 centimeters. Once again, a layer of sand is laid, the outer part of the soil is covered with turf. It is important to follow the sequence of layers. When drainage pipes for drainage of water are laid, photos of which you can consider in the article, sand should be laid first. The filter is designed to prevent particles of soil and fine gravel from entering the drain pipe, otherwise the drainage holes will quickly be blocked and the system will require cleaning.

Tips for developing the system

To maintain drainage, it is necessary to install inspection wells on straight sections , which are removed from each other by 50 meters. They should be in the places of turns, changes in the angles of inclination and the intersection of the pipe. The most popular way of laying the elements for drainage is the shape of the herringbone, each of whose branches will go into a large collector pipe for drainage. Ground water through the collector pipe will flow by gravity into a roadside ditch, storm water drain or a body of water. If the water discharge location is located below the level of the site, it is important to mount a drainage well, from which the pump will remove the water.