RU102016U1 - FOUNDATION PLATE WITH DRAINAGE SYSTEM - Google Patents

Abstract

 Base plate made of reinforced concrete in one piece and having rigid spatial reinforcement along the entire bearing plane, allowing to absorb loads arising from seasonal and uneven ground movements without internal deformations, characterized in that it contains vertical drainage water inlets having intake holes on the surface of the plate and leaving the drain in horizontal drainage pipes laid parallel to the edges of the slab to a depth below the upper reinforcement layer, and the horizontal drainage s collector pipes are connected to the water collecting tube, located below them by level, which has a discharge into the sewage system.

Description

Application area

The utility model relates to foundation slabs and can be used for laying the foundations of buildings and structures with uneven compressibility of soils, weak, destroyed, eroded, loose soils, the need to protect against high groundwater, or significantly increase the load on the weight of the building.

State of the art

One of the varieties of shallow shallow strip foundations is the foundation slab. The difference between the foundation slab is rigid spatial reinforcement along the entire bearing plane, which allows without internal deformations to absorb the loads arising from seasonal and uneven ground movements [1].

Foundation slabs are used for uneven compressibility of soils, weak, destroyed, eroded, bulk soils, the need to protect against high groundwater or a significant increase in load from the weight of the building. Monolithic slab foundations are constructed in the form of flat or ribbed plates, they are necessarily reinforced. The prior art solution is known [2] for REINFORCED CONCRETE DRAINAGE PLATE. The device relates to filtering water treatment devices with granular loading. SUBSTANCE: reinforced concrete slab of drainage is made of fine-grained concrete of class B20-B30, waterproof grade W2-W8, Portland cement composition: sand with a particle size of 2.5 and more - 1: 2-1: 3. The plate has through conical holes with a total angle of not more than 24 °, and chamfers are made in the expanded zone of the hole. The degree of perforation of the plate is 3-15% with a density of holes per 1 m ^{2 the} area of the plate is 30-40 pieces. The technical task is to increase the life of the reinforced concrete drainage slab, the quality of water treatment, and simplify the manufacturing technology of the slab.

The disadvantage of this solution is that this plate does not have a rigid spatial reinforcement along the entire bearing plane, which allows it to absorb loads arising from seasonal and uneven ground movements without internal deformations. This plate is directly intended as a filtering water treatment device. Such slabs are intended for drainage and they are not used in the construction of residential, commercial and office buildings.

At the present stage, in the construction of residential, commercial and office buildings, laying of foundation slabs is used in the basement of the building, where additional internal drainage is located, while parallel slots and sometimes one perpendicular, along which water is drained from the plane, is made in the concrete slab of the building foundation slabs. In the lower part of the parallel slots, perforated and fiberglass-wrapped dryer pipes are usually located, and a collector pipe is placed in the perpendicular slot and connected to the dryer pipes. The collector pipe is led outside the basement of the building and connected to the ring drainage pipe. If the building foundation slab is below the drainage drainage outside the building, then drainage pipes are equipped with pumps for pumping water. The disadvantage of this technology is the need each time in a concrete foundation slab to crush the slots (grooves) of the internal drainage. This leads to an increase in the cost of construction work on laying the foundation and an increase in the time of construction work on its laying. The disadvantage of this solution is that it is not feasible in all cases, because sometimes there are situations when the reinforcement is in the upper zone of the plate and crushing can violate its integrity.

The closest analogue to the claimed solution is the solution [3]. A foundation slab made of reinforced concrete in one piece and having rigid spatial reinforcement along the entire bearing plane, allowing it to absorb loads arising from seasonal and uneven ground movements without internal deformations, characterized in that it contains at least one drainage recess near the edge of the slab parallel to one from the sides of the slab extending to a depth sufficient to use the recess as a drainage drain. The foundation slab contains two parallel drainage recesses on opposite sides of the slab.

The disadvantage of this solution is that it is not feasible in all cases, because sometimes there are situations when the reinforcement is in the upper zone of the slab and the device of the notches in the upper part of the slab can violate its integrity or concealment by concrete from corrosion.

Effect: the claimed device allows you to implement an effective drainage system without any destruction or exposure of the upper zone of the plate and its reinforcement.

Brief Description of the Drawings

Figure 1 shows the constructive device of the slab (a is a top view, 6 is a sectional side view), where 1 is a reinforced concrete slab, 2 are drainage pipes, drainage vertical intake pipes, 4 is a collector water collection pipe, 5 is a discharge pipe in Sewerage, 6 - plate reinforcement.

Utility Model Implementation

The claimed technical result is achieved due to the fact (see Figure 1) that the base plate (1), made of reinforced concrete and having rigid spatial reinforcement along the entire bearing plane, allowing to absorb loads arising from seasonal and uneven movements without internal deformations soil, characterized in that it contains drainage water intake vertical pipes having intake holes on the surface of the plate and outflowing into drainage horizontal pipes laid parallel to the edges plates to a depth below the upper layer of reinforcement, and horizontal drainage pipes are connected by a collector pipe for collecting water, located below them at a level that has a drain into the sewage system.

The base plate (1) can be made, for example, in the form of a monolithic reinforced concrete slab, usually 200-300 mm thick, with a reinforced mesh of 100 × 100 or 150 × 150 mm from reinforcement. The plate may contain waterproofing - 2 layers of hydroglass glass (roofing material, roofing, etc.). To prevent freezing of the soil of the base under the blind area along the outer walls of the building, a thermal insulation material is laid to a width of 1 meter.

In contrast to the known methods of drainage by the method of gating in foundation slabs or forming finished excavations obtained industrially, the claimed solution is based on laying drainage pipes (2) below the reinforcement layer during the production of the foundation (during concrete pouring).

Intake pipes (3) are installed vertically periodically along the drainage pipes (2) and output into them. The drainage pipes (2) themselves are connected by a collector assembly (4), which has a branch (5) to the sewage system.

Thus, when water accumulates on the surface of the foundation slab (1), it flows down into the drainage pipes (2) through the fences (3), into the collector (4) through them, and leaves through the drain (5) to the sewer. This ensures an efficient foundation drainage system.

Concreting of a monolithic foundation slab can be carried out, for example, from concrete B20, F50. The rods of the grids of the foundation plate are welded by a mechanized submerged arc welding bath, the frames are made by resistance welding, the flat frames are combined into spatial ones by knitting wire. Concreting of a monolithic base plate is carried out in sections. The rods of the grids of the working reinforcement of the floors of the reinforced concrete frame are joined along the length of the overlap. The working reinforcement of the columns is joined by a welded joint. For the convenience of the device of the reinforced concrete frame of the building, each floor is divided into three grips and concreted. Prefabricated wooden panels are used as formwork. Formwork is not insulated; electric heating of the concrete mixture is used. Installation of formwork panels, delivery of small-sized structures and materials from floor to floor is done manually or with the help of electric winches with a carrying capacity of 1.5 tons. Formwork racks are dismantled as concrete gains strength.

The use of laying drainage pipes (2) under the upper layer of reinforcement (6) and water intakes (3) in the process of pouring the foundation, such finished foundation slabs eliminate the need to crush drainage slots (grooves) in the foundation plate during construction and lay recesses capable of violate the integrity of the reinforcement. This allows you to reduce the cost of construction work on laying the foundation and reduce the time of construction work on its laying without exposing and damaging the fittings.

Information sources:

1.http: //www.pomestye.ru/main. mhtml? Menu = 26 & PublD = 26

2. utility model RU 53586U

3. utility model RU 80170U

Claims (1)

A foundation slab made of reinforced concrete in one piece and having rigid spatial reinforcement along the entire bearing plane, allowing it to absorb loads arising from seasonal and uneven ground movements without internal deformations, characterized in that it contains vertical drainage water inlets having intake openings on the surface of the slab and leaving the drain in horizontal drainage pipes laid parallel to the edges of the slab to a depth below the upper reinforcement layer, and the horizontal drainage s collector pipes are connected to the water collecting tube, located below them by level, which has a discharge into the sewage system.