RU2161670C1 - Cultured lawn and method for its arrangement - Google Patents

Abstract

FIELD: construction engineering. SUBSTANCE: pipelines are placed on building ground, on drainage system, or under lawn surface. Pipelines provide for drainage and/or heating of lawn turf by means of temperature control system. Drainage materials covered by earth layers or ready-made turf plates are placed on members of temperature control system, that is on electric cables and pipes depending on lawn function, climate and weather conditions. Electric cables and pipes may be laid on lawn turf and/or at a depth of 3 -50 cm from lawn surface and spaced 3 - 50 cm apart. Coolant is pumped through pipes in hot seasons. In cold seasons lawn is heated by means of coolant-carrying pipelines and electric heater elements. EFFECT: provision for maintaining good properties of grass under all weather conditions. 4 cl, 2 dwg

Description

 The invention relates to agriculture and construction, in particular to the technology of creating a cultivated lawn intended for sports, decorative and other purposes, and can be used in the construction of football fields, rugby fields, American football, field hockey, tennis courts and other sports structures, as well as the creation of soil protection and other types of lawns.

 A sports field is known from the patent literature, comprising a sequentially located base, a drainage layer with pipes, a soil layer with a turf, and a heat control system. Culverts are electrically conductive, connected to a source of electric current, current leads and insulated from distribution and collector pipes. /cm. USSR author's certificate N 1738886, E 01 C 13/00, 1992 /.

 However, the well-known sports field is very expensive and inefficient due to its multi-layer and very complex design. In addition, these design of sports fields are not able to provide uniform and controlled heating of the lawn turf, as well as effectively vary the parameters of warming the lawn depending on the functional purpose of the lawn cover, local construction and weather and climatic conditions. All this ultimately causes a sharp decrease in the quality characteristics of the grass of the lawn.

 The technical result achieved by the inventions consists in increasing the uniformity of the controlled heating of the lawn turf in horizontal and vertical directions, in ensuring the rapid growth and development of grass lawn in the spring and maintaining the necessary qualitative characteristics of the lawn cover in the autumn-winter period, in the possibility of providing soil cooling in the hot, dry season layer and turf, maintaining high operational properties of the grass stand, as well as improving efficiency due to simplicity and roizvoditelnosti cultural construction of the lawn.

The invention is illustrated by drawings, where
figure 1 shows a cross section of a cultivated lawn;
figure 2 is a view of the lawn in plan.

 The invention.

 A method of creating a cultivated lawn includes laying on a prepared construction site, drainage system, base or surface of a lawn a piping system that provides drainage and / or heating of the turf using a heat control system. The proposed method for creating a cultivated lawn is characterized in that a heat control system with a working agent circulating through the pipes during the hot period is used to cool the turf of the lawn by pumping a cooled working agent through the pipes. Depending on the functional purpose of the lawn, on local construction and weather and climatic conditions, drainage materials are laid on the elements of the heat control system on electric cables and pipes, which are covered with soil layers or plates of the finished lawn turf, or laid in a turf to a depth of 3-50 cm from the surface of the lawn and with a distance between them of 3-50 cm.

 The cultivated lawn contains a sequentially located base, a drainage layer with pipes, a soil layer with a turf and a heat control system, which is characterized in that it is equipped with a source of chilled working agent circulating through the pipes to cool the turf, and the elements of the heat control system and / or pipes are laid in a lawn turf and / or to a depth of 3-50 cm from the surface of the lawn and with a distance between them of 3-50 cm.

 As a heat control system, heat engineering devices or electric or electric heating cables, or electric, or heat-generating, or heat-exchange plants are used.

 The drainage system of the lawn consists of drainage layers and / or drainage channels and pipes filled and / or covered with drainage materials.

 The heat loss of the turf turf at external temperatures equal to the average temperatures of the coldest five-day period in the spring and autumn in this area should be provided by a heating system for turf turf. In this case, it is necessary to take into account the fact that all components of heat loss, as well as the heat generation of the turf of the lawn, are constantly changing. Therefore, the amount of heat supplied needs to be continuously adjusted.

 The problem is solved in that in the present invention uses a heat control system. The method includes laying on a prepared construction site, drainage system or soil base under the turf of a cultivated lawn or directly in a turf of a turf, a heat control system containing heat engineering devices or electric or electric heating cables, or electric, or heat regulating, or heat exchange plants that use the thermal effect of electric energy for heating the turf of the lawn.

 Instead of or together with electrothermal systems, heat-exchange piping systems can be installed that provide heating of the turf through pipes with a heat carrier that is heated outside the heated areas by heat-generating or heat-exchanging devices / not shown in the drawings /, and then transported through pipelines to the place where the turf is heated.

 Artificial heating systems, consisting of pipes with a coolant circulating through them, in the hot season, if necessary, are used to cool the soil and turf of a cultivated lawn by pumping a cooled coolant through them.

 The configuration, density, number and depth of installation of systems of heat engineering devices, electric cables, electric heating elements or pipes with a coolant placed under or directly in the turf of the lawn vary depending on the functional purpose of the lawn and other construction conditions.

 The greatest effect of regulating the heat supply is provided by the automation of the heating system, which allows one to take into account the generated heat, heat loss, as well as thermal inertia and, accordingly, to correct the functioning of the entire artificial turf heating system.

 The construction of the cultivated lawn includes a base 1, drainage ditches 2 with drainage pipes 3, filled or covered with drainage materials 4, electric cables 5, heating elements or pipes with a coolant circulating through them.

 Electric cables or pipes from above are covered with drainage materials 6 / crushed stone, sand, pebbles / on which soil layers or turf turf are laid 7. Moreover, the most effective are systems in which the coolant moves from the supply pipe-collector 8 through pipes passing under the turf turf , and returns to the return receiving pipe-collector 9.

 The construction of an artificial turf heating turf system begins with a thorough planning / profiling / soil base. For example, during the construction of sports fields and lawn-covered sports fields / soccer fields, tennis courts, etc. / first, using the level, the soil is leveled at the base of the sports field structure and necessary slopes are given to ensure the drainage of water filtered through soil layers with the surface of the lawn coating.

In the profiled soil of the base, drainage ditches are cut or drainage pipes are laid and covered with various drainage materials / crushed stone, pebbles, sand, etc. /
Following this, electric cables or heating elements, or pipes with a coolant circulating through them, are laid on the drainage layers of the drainage system. Typically, various types of antifreeze are used as a heat carrier. Pipes can be made of a variety of materials, including synthetic ones, for example polyethylene.

 Depending on local climatic and other construction conditions, electric heating elements and pipes are laid to a depth of 3 cm to 50 cm from the surface of the lawn. The distance between the pipes can also vary from 3 cm to 50 cm, on average, to create an artificial heating system for one football field, for example, you need to lay about two hundred thousand meters of pipes.

 The coolant that provides heating of the pipes and, consequently, the soil layer and turf, is preheated to operating temperatures by heat-generating or heat-exchanging devices and pumped through the piping system using pumps / not shown /.

 The use of a pipe system with a coolant opens up new possibilities both for the artificial heating of the soil layer of a cultivated lawn in the cold season, and for its cooling in a hot, dry period. At the same time, it is not necessary to install any additional coolant cooling systems. Simply turn off the heat-generating or heat-exchanging devices. The temperature of the coolant in this case will be low enough to provide the necessary cooling of the soil layer of the lawn.

 Such combined use of artificial turf heating systems is of great importance in the construction of sports fields in regions with a hot, arid, sharply continental climate or in extreme weather conditions.

Claims (4)

 1. A method of creating a cultivated lawn, including laying on a prepared construction site, drainage system, base or under the surface of the lawn, a piping system that provides drainage and / or heating of the turf using a heat control system, characterized in that the heat control system with a working agent circulating through the pipes in the hot period they are used to cool the turf of the lawn by pumping a cooled working agent through the pipes, and depending on the functional purpose of the lawn, from building and weather and climatic conditions on the elements of the heat control system - drainage materials are laid on electric cables and pipes, which are covered with soil layers or plates of the finished lawn turf, or laid in a turf and / or to a depth of 3-50 cm from the surface of the lawn and the distance between them is 3 - 50 cm.  2. A cultivated lawn containing a sequentially located base, a drainage layer with pipes, a soil layer with a turf and a heat control system, characterized in that the heat control system is equipped with a source of cooled working agent circulating through the pipes to cool the turf, and the elements of the heat control system and pipes are laid in lawn turf and / or 3 - 50 cm from the surface of the lawn and with a distance between them of 3 - 50 cm.  3. The cultivated lawn according to claim 1, characterized in that heat-engineering devices, or electric or electric heating cables, or electric, or heat-generating, or heat-exchange plants, are used as a heat control system.  4. Cultivated lawn according to claims 2 and 3, characterized in that the drainage system of the lawn consists of drainage layers and / or drainage channels and pipes filled and / or covered with drainage materials.

Images