RU170257U1 - The device for waterproofing the dividing strip of road pavement on a subsiding ground - Google Patents

Abstract

The utility model relates to road construction and operation of roads with dividing strips mainly on subsidence soils. The technical result achieved by the implementation of the utility model is to ensure that the subgrade of the base of the road pavement of roads is protected from penetration of water from the filling ground into the subgrade of the base of the highway ( GZ) dividing strip (RP). The waterproofing device (RP) of the road pavement of the road contains a guide isolation of the RP and the means of water drainage from the RP RP located above it, made with the possibility of preventing the penetration of water from the RP RP into the subgrade of the road pavement base. such as LDPE or a material similar in waterproofing properties, the edges of which are hermetically connected to the side stones located at the edges of the RP. but in the form of a drainage pipe located above the layer of waterproofing material, communicating with the drainage collector and / or drainage wells. 7 c.p. f-ly, 1 ill.

Description

Technical field

The utility model relates to road construction and operation of roads with dividing strips mainly on subsiding soils.

State of the art

Roads should provide: safe and convenient movement of automobile and other vehicles with calculated speeds, loads and dimensions; safe pedestrian traffic; have the necessary conditions for repair and maintenance; to have the reliability of structures and resistance to external influences [SP 34.13330.2012. Car roads].

One of the urgent problems of the reliability of structures and resistance to external influences of roads on subsidence and forest soils is the provision of drainage and road drainage through devices that drain water from the subgrade and pavement and prevent waterlogging of the subgrade when rainfall and excessive irrigation of dividing strips with grass coated especially in hot, arid climates.

Under the roadbed is usually understood as a geotechnical structure, made in the form of embankments, excavations, or half-mounds, half-excavations, which serves to ensure the design spatial location of the carriageway and as a soil foundation (underlying soil) of the pavement structure [SP 34.13330.2012. Car roads].

The working layer of the subgrade (underlying soil) is isolated - the upper part of the canvas ranging from the bottom of the pavement to a level corresponding to 2/3 of the freezing depth of the structure, but not less than 1.5 m, counting from the surface of the coating.

The subgrade includes taking into account the category of the road, the type of pavement, the height of the embankment and the depth of the excavation, the properties of the soils used in the subgrade, the conditions for the construction of the subgrade, the natural conditions of the construction area and the particular geotechnical conditions of the construction site, experience in operating this area, based on ensuring the required strength, stability and stability of both the subgrade and road pavement at the lowest cost at the construction stages and operation, as well as the maximum conservation of valuable land and the least damage to the environment.

The subgrade usually includes the following elements: the upper part of the subgrade (working layer); embankment body (with sloping parts); base of the embankment; excavation base; sloping parts of the excavation; device for surface drainage; devices for lowering or removing groundwater (drainage); supporting and protective geotechnical devices and structures designed to protect the subgrade from dangerous geological processes (erosion, abrasion, mudflows, avalanches, landslides, etc.).

The parameters of the construction of the subgrade can be assigned using: widely tested and not requiring additional justification by special calculations of standard solutions that meet the requirements of building codes and rules; individual design decisions requiring justification by special calculations (including standard solutions requiring individual binding).

Individual solutions, as well as individual binding of standard solutions are used: for embankments with a slope height of more than 12 m; for embankments in areas of temporary flooding, as well as at the intersection of permanent water bodies and watercourses; for embankments erected on swamps with a depth of more than 4 m with peeling or in the presence of transverse slopes of the swamp bottom more than 1:10; for embankments constructed on weak foundations; when used in embankments of soils of high humidity; when using interlayers of geosynthetic materials (separation, reinforcing, draining, capillary, waterproofing, heat insulating, etc.) in embankments to regulate the water-thermal regime of the upper part of the subgrade, as well as with special transverse profiles; during the construction of embankments on subsiding soils.

To ensure the stability of the subgrade in difficult conditions, as well as in the areas where the subgrade is connected with bridges and overpasses, it is necessary to provide drainage, drainage, supporting and other protective structures.

In particular, in order to increase the security and reliability of the roadbed, the reinforcement of road structures and materials is carried out in order to improve their mechanical characteristics by reinforcing with geosynthetic materials (woven geotextiles, geogrid, flat geogrid and their compositions, flexible three-dimensional geogrid (geocells), geocomposites), designed to strengthen road structures and materials, and use reinforced soil created by constructive and technological combination of cargo tovyh layers and reinforcement in form of metallic, plastic strips, layers of geosynthetic material, arranged horizontally, are able to withstand significant compared with soil tensile forces.

This significantly complicates and increases the cost of construction of roads, however, it does not provide the necessary safety and reliability of the subgrade of roads on subsidence soils, on which, when soaked, the instant drawdown can exceed 20%.

To improve the stability of the subgrade on soft soils, various drainage devices are known, the drainage of which is based on the removal of free water from the base soil, which leads to partial stabilization of the base soil.

It is well known that the reasons for deformations and insufficient stability of the subgrade and the foundation of pavement are the high humidity of these soils from the presence of free and bound water in them, which can increase sharply with rainfall and excessive irrigation.

The variable water content in the base soils of the roads, being an important reason for the formation of deformations, does not allow for full stabilization of the subgrade, which is a problem of increasing the reliability of technical structures of roads. Therefore, means are being developed to stabilize the water content in the subgrade of roads.

One of the main causes of deformations and loss of stability of the pavement base is the wetting of the subgrade through dividing lanes of roads, which usually have grass cover and usually only contain surface drainage from dividing lanes.

The surfaces of the dividing strips, depending on their width, the soil used, the type of reinforcement and the climatic conditions, give a bias towards the middle of the dividing strip or towards the roadway. When the surface of the dividing strip is sloping towards the middle, it is usually envisaged to install special collectors for draining surface water [section 5.28 of SP 34.13330.2012. Car roads].

Known drainage device designed to collect and drain free ground water, moisturizing clay soil of the subgrade [Shakhunyants G.M. Railroad: Textbook for universities. M .: Transport, 1987. S. 226-235].

This drainage device is a trench made in the layers of seasonal freezing and constantly thawed soil of the base of the subgrade and located along it. The width of the drainage trench is 0.8-1.0 m, and the depth is greater than the depth of seasonal freezing by the amount of the required decrease in groundwater level. A drainage pipe is laid along the bottom of the trench, and the trench is filled with drainage material (for example, large sand).

This device operates as follows. Free groundwater from an aquifer (a layer of permanently thawed soil) flows into a drainage trench and is discharged through a pipe outside the subgrade. The free water level drops below the seasonal freezing limit. The clay soil of the seasonal freezing layer of the subgrade base is no longer in contact with free water, which prevents the free water from moving into the seasonal freezing layer in winter and, as a consequence, the swelling of the soil.

However, bound water remains in the clay soil of the seasonal freezing layer, which makes it moist. In winter, in clay soil, the process of migration of bound and capillary water from a layer of constantly thawed soil to the layer of seasonal freezing occurs, which causes ice formation and, as a result, their swelling due to the presence of bound and capillary water.

The advantage of the known device lies in the partial elimination of soil heaving caused by a decrease in the level of free water in the aquifer to the required depth, and partial removal of free water from the seasonal freezing soil during thawing.

A disadvantage of the known device is the formation of soil heaving due to the presence of bound water in the layer of seasonal freezing, as well as the impossibility of using it to remove water from the soil of the dividing strip.

Known filtering embankment on soft soils, used in the construction and reconstruction of embankments of linear structures on soft soils when intersecting with weakly flowing streams or in depressive landforms, containing a prism of sorted rocky soil, limited by SNM and along the side faces with containers with sorted rocky soil. Containers are stacked in the upper and lower faces of the prism, while the containers stacked around the perimeter are interconnected and form an arch in cross section. The space inside the arch is filled with rocky soil or containers with rocky soil connected or not connected to each other. The technical result is the development of a filtering embankment, the stability of which during subsequent operation will be ensured by eliminating the uneven effect of the concentrated load along its longitudinal axis by uniformly redistributing the water flow at the base, which eliminates the soaking and loss of soil strength and the occurrence of subsidence of the railway track [RU 2186170, E01F 5/00. Publ. July 27, 2002].

A known method of vertical-angled drainage to protect the upper part of the subgrade from overmoistening, including the migration of moisture through drainage pipes, through which drainage vertically-angled drains filled with porous material are made in the form of drainage pipes directed into the body of the subgrade and installed at an angle to axis of the horizon, while the angle of the vertical-angle drains, as well as their number and diameter, depend on the peak of the groundwater level, which must be lowered, and on its volume, respectively. The technical result is the preservation of the existing pavement when installing a vertical-angle drainage [RU 2206656, E01F 5/00. Publ. 06/20/2003].

A known ditch located in the weathering zone is used to intercept and drain surface and ground water from the roadbed of railways and railways in mountainous terrain, which for the purpose of increasing the reliability of groundwater drainage contains a bed with a bottom, upland and slope slopes and is equipped with a filter layer from fine soil, placed under the bottom and piedmont slope within the entire weathering zone of the mountain slope [RU 1409715, E01F 5/00. Published: 07/15/1988].

Known drainage slot through the road embankment on permafrost, intended for use in the field of distribution of permafrost soils, in which there is a drainage slot, sprinkled with stone. What is new is that the drainage cut through the road embankment in permafrost contains three drainage channels: the main one in the watercourse zone, the embankment crossing in the transverse direction and filled with large-pore material, collective, adjacent to the main drainage canal on the upper side of the watercourse, and distribution, located with bottom side of the watercourse. The main, collective and distribution channels are located below the level of the natural soil surface over the height of the active layer in natural conditions and are filled with large-porous material. In addition, the drainage slot may contain an outlet drainage channel and an initiating culvert adjacent to it, the upper part of which is located above the water level during autumn freezing. The technical result is an increase in the efficiency of the drainage slot due to the passage of groundwater [RU 136447, E01F 5/00. Publ. 01/10/2014].

A known method of using horizontal and vertical drainage to strengthen soft soils in the foundations of structures, as well as to accelerate the settlement of structures, based on the principle of moisture migration, respectively, horizontally or vertically. Pipes are laid in the soil or in the pavement cloth, which change the moisture migration path and accelerate the drainage of the soil (Tulaev A.Ya. Design and calculation of drainage devices. - M .: Transport, 1980. - 191 s).

The disadvantage of this known method of horizontal drainage is: drainage of only the upper part of the subgrade; siltation of the material of the drainage layer during operation due to thawing of moisture from the subgrade and the dynamic effects of automobile load; the inability to improve the drainage properties of the structure without destroying the pavement.

The disadvantage of vertical drainage is the inability to drain moisture from the middle of the pavement and the soil of the dividing strip without disturbing the road surface.

Known devices and methods of drainage from the road surface and means of protection against water erosion of slopes of embankments and excavations.

A known system of surface drainage from roads, including a device made of concrete for collecting water from the carriageway, transverse drainage trays and drainage devices made in the form of wells [RU 2182942, IPC E01C 3/06, prior. 04/12/2000].

The disadvantage of this system is the great complexity of the manufacturing process of the drainage system, the need to use lifting mechanisms during its installation. During operation, concrete under the influence of moisture, temperature changes is destroyed, repair of the drainage system is required, which increases maintenance costs while reducing the service life.

The known design of surface drainage from the road (Standard design decisions 503-09-7.84 "Drainage facilities on the roads of the common network of the USSR," approved and put into effect by the Ministry of Transport and Construction, order of March 28, 1984, Section III, Section 3.2), containing a device for collecting water from the roadway, a transverse tray, an extinguishing device, a spreader. All structural elements are made of concrete.

The disadvantage of this device is also the complexity and complexity of installation, the need to use lifting mechanisms. During operation, concrete under the influence of moisture, changes in plus and minus temperatures is destroyed, repair of the drainage system is required, which increases maintenance costs while reducing the service life.

Known used in the construction and operation of drainage facilities mainly on roads in mountainous areas, a drainage system, which, to increase the reliability of operation by preventing flooding of the base of the tray and cleaning the drainage pipe, contains wells with heads connected between them by drainage pipes. A plug is installed at the inlet head of the drainage pipe, located below the level of the maximum supported water horizon in the well. The presence of the plug increases the reliability of the drainage system by preventing the penetration of water into the base of the tray and ensuring the cleaning of drainage pipes [RU 1606567, E01F 5/00. Publ. 11/15/1990].

There is a method of constructing a drainage structure from a subgrade and other bulk structures to protect slopes of embankments and excavations from water erosion, while strengthening the inlet and outlet channels of culverts in the construction of roads, railways and other soil structures, which consists in cutting a ditch, strengthening its bottom and walls coated and giving the bottom of the ditch profiled in a longitudinal section of a form with protrusions, as a coating using geotextile material, which is laid on the surface for a and edge walls and secured along the length of the ditch. The protrusions are formed from geotextile material bonded with the formation of transverse cages, filled to stiffen with soil or other material when used as dampers for the speed of water flow. The clips are filled with U-shaped brackets - one for each, with fixing the staples in the soil of the bottom of the ditch. Allows you to expand the scope of such structures (on terrain with a slope of more than 30%), reduce the cost and construction time, as well as increase the reliability of the structure [RU 2025551, E01F 5/00. Publ. 12/30/1994].

Known drainage for surface road drainage, which to reduce the complexity of installation, increase service life, reduce maintenance costs, reliability during operation in any climatic zones, includes a device for collecting water from the roadway, transverse trays and a quenching device with a spreading device made of fiberglass - synthetic reinforced resins [RU 71663, E01F 5/00. Publ. 03/20/2008].

To improve road safety on modern roads, dividing lanes are performed.

The width of the dividing lane established by the rules of road construction on road sections, where in the future it may be necessary to increase the number of lanes, is assumed to be at least 13.5 m for roads of category ΙΑ and at least 12.5 m for roads of category IB [SP 34.13330. 2012. Car roads].

The surfaces of the dividing strips, depending on their width, the soil used, the type of reinforcement and the climatic conditions, usually give a bias towards the middle of the dividing strip or towards the roadway. When the surface of the dividing strip is sloped towards the middle, collector devices are provided for draining surface water.

Given the considerable length and width of the dividing strips, they are usually made from the soil of the base of the roads, and their surfaces are most often strengthened by sowing grass, requiring regular watering in dry periods.

With intensive snow melting, heavy rainfall and excessive watering of the dividing strips, a significant amount of water gets into the roadbed through the filling ground of the dividing strips, which leads to a significant and sharp change in the moisture and physico-mechanical strength parameters of the subgrade ground, which in turn leads to deformations and damage to the subgrade and subsequent damage and destruction of the road pavement of the road.

Especially important is the optimal solution to this problem for roads on subsidence soils, which, when wet, dramatically change the physical and mechanical strength parameters and, depending on the category of soil subsidence, often give an instant draft under their own weight or under the influence of loads.

Soils for the working layer of the roadbed are usually divided by composition (clay soils), swelling, relative subsidence and susceptibility to frost heaving, as well as ice and subsidence during thawing.

A distinctive feature of subsidence soils is their ability to be stressed in tension from their own weight and / or external load with increasing humidity - by soaking to give additional precipitation, called subsidence, which can lead to and often lead to deformation and damage to road bases.

Sagging soils include loesses, loesslike sandy loams, loams and clays, some types of cover loams and sandy loams, as well as in some cases fine and silty sands with increased structural strength, loose clay soils, industrial waste (grate dust, ash, etc. .), ash deposits, etc.

Subsidence soils and their main representatives - loess soils are widespread in Russia and occupy about 15% of its area, including in a significant part (more than 80%) of Ukraine, the Central Black Earth Zone, the North Caucasus, Transcaucasia, the Volga region, and Central Asia, Kazakhstan, Eastern and Western Siberia, etc.

Significant areas are occupied by loess soils in Romania, Bulgaria, Yugoslavia, Spain, North Africa, China, Iran, Afghanistan, South America, the USA and others.

Sagging soils are common in Turkmenistan, especially in the southern part of Ashgabat.

The subsidence of soils is determined by the peculiarities of the formation and existence of the strata of these soils, as a result of which they are in an uncompressed state. The uncompressed state of loess soil can persist throughout the entire period of the existence of the stratum if there is no increase in humidity and load. In this case, additional compaction of the soil in the lower layers may occur under the influence of its own weight. But since the subsidence depends on the magnitude of the load, the undersolidation of the thickness of loess soils with respect to the external load exceeding the stress from the dead weight of the soil will remain. The possibility of subsequent compaction of loess soil, which is in a compacted state from external load or dead weight, with increasing humidity is determined by the ratio of the decrease in its strength during wetting and the value of the current load.

Under-compaction of soils is expressed in their low degree of density, characterized by a bulk density of the skeleton in the range of usually 1.2-1.5 t / m ³ , porosity of 0.6-0.45 and porosity coefficient of 0.65-0.9. With depth, the degree of density most often increases.

Along with under compaction, subsidence soils are usually characterized by low natural humidity, a dusty composition, and a certain structural strength.

The structural strength of loess and other subsidence soils is determined mainly by cementitious adhesion. With increasing humidity, there is a significant decrease in soil strength.

It is known that thin films of water between particles of soil can have a proppant effect, which affects simultaneously with the penetration of water into the soil. Water films, on the one hand, playing the role of a lubricant, facilitate the sliding of particles and facilitate their denser packing under the influence of pressure, on the other hand, with sharp wetting they contribute to a sharp decrease in density and cohesion, that is, to a sharp decrease in soil strength and, accordingly, to a sharp decrease roadbed strength.

The closest to the claimed solution in terms of the essential features (prototype) is a drainage device containing transverse trenches made in the lower part of the embankment of the roadway, a longitudinal trench with a drainage pipe laid at its bottom, and the transverse and longitudinal trenches are interconnected and filled with drainage soil, moreover, the transverse and longitudinal trenches are made to a depth less than the depth of seasonal freezing, which provides a technical result - increased soil stability s the base of the subgrade due to the complete exclusion of heaving and precipitation, both from free and bound water by draining constantly thawed soft soils [RU 93410, E01F 5/00, publ. 04/27/2010 (prototype)].

The disadvantage of the prototype RU 93410 and the general disadvantage of all the above methods and devices is the impossibility of their use for waterproofing the dividing strip (bosquet) of pavement on subsiding soils, as well as the inability to achieve complete waterproofing of the subgrade of roads with dividing strips.

There were no examples of waterproofing of dividing strips (bosquet) of pavement on subsidence and forest soils, as well as examples of drainage (removal of underground water) of the soil of dividing strips of road lanes of roads in the scope of the search.

Task and technical result

In different regions, in particular in the southern part of the city of Ashgabat, subsidence soils are widespread - soils, when water gets on them, instant subsidence occurs under their own weight and / or under the influence of loads.

The objective of the utility model is to solve the problem of water entering the soil of the roadbed from irrigation systems, melt and storm water into the ground of the road base (roadbed) and preventing waterlogging of the roadway subgrade on subsiding soils during intense snow melting, heavy rainfall and excessive irrigation grass-coated dividing strips, especially in hot, arid climates requiring regular watering to maintain grass dividing strips.

The technical result achieved by the implementation of the utility model is to ensure that the subgrade of the base of the road pavement of roads is protected from water entering from the subgrade of the base of the road of the road from filling the dividing strip, which is especially important and significant for roads on subsiding soils.

Disclosure of the invention

The problem is solved, and the required technical result is achieved by the fact that the waterproofing device for the dividing strip of road pavement according to the utility model comprises means for waterproofing the dividing strip and a means for removing water from the ground to fill the dividing strip, configured to prevent water from entering the filling ground dividing strip in the subgrade of the base of the pavement of the road.

In this case, the means of waterproofing the separation strip is made in the form of a layer of waterproofing material located underground under the separation strip in the form of a geotextile, a geomembrane of the LDPE type or a material similar in waterproofing properties, the edges of the filling strip separating strip of the waterproofing material layer located under the ground are hermetically connected to the separation edges strips with side stones, for example by placing the edges of the waterproofing material in concrete substrates border stones by stickers waterproofing material on the surface of border stones by means of hot bitumen, or by fastening the waterproofing material to curbs fastening dowels.

In addition, the means of draining water from the ground filling the dividing strip is made in the form of a drainage pipe located above the layer of waterproofing material, communicating with the drainage collector and / or drainage wells, the drainage pipe located above the layer of waterproofing material is made in the form of a perforated polymer, ceramic or composite pipe and made wrapped in a water-permeable geotextile material and / or located in a layer of rubble wrapped in a water-permeable geotextile erialom and above the ground filling the dividing line is a layer of topsoil grassy.

Brief Description of the Drawings

In FIG. 1 shows a possible, advantageous, but not the only embodiment of the device according to a utility model, which shows: a vegetative layer of soil 1 of the dividing strip of the road; side stones 2; carriageway 3; concrete foundations of side stones 4; waterproofing material 5; soil filling dividing strip 6; crushed stone 7 of the predominant fraction 20-40, wrapped in a geotextile; perforated polyethylene pipe 8 mainly with a diameter of 110 mm, wrapped in a permeable geotextile fabric.

Utility Model Implementation

To solve the problem and achieve the required technical result, the waterproofing of the subgrade and the foundation of the road pavement of the road from water from irrigation systems, storm melt water from the ground filling the dividing strip is as follows:

When constructing or reconstructing the highway, the excavator's scoop bucket forms a recess under the dividing strip in the subgrade.

With the new construction of the highway, a recess under the dividing strip is formed after laying the first layer of asphalt concrete pavement, before installing the side stone.

If necessary, before forming a recess for the dividing strip, add soil to the dividing strip and compact it to a density not lower than regulatory requirements.

During the reconstruction of the road, the side stone is dismantled, after which soil is excavated from the dividing strip with simultaneous design formation.

Before starting the waterproofing of the dividing strip, all work on the installation of road constructions in the dividing strip (storm sewer wells, foundations of outdoor lighting poles, signs of TSODD, etc.) must be completed.

A recess for the dividing strip is formed with a slope of the side edges to the central part or close to one of the edges (as shown in Fig. 1) to ensure subsequent natural accumulation of water in the lower part of the recess.

The minimum depth of excavation under the dividing strip is determined by the size of the root coma of plants that will later be planted in the dividing strip.

When forming a recess for the dividing strip, platforms for drainage wells and a drainage collector are also arranged. The step of the drainage wells is determined by the maximum possible based on current standards. The parameters of the base for the wells, as well as their design, are also determined by the relevant standards. Spillway from drainage wells is determined according to the project, for example, on the relief, or in the trunk well of the storm sewer collector.

A waterproofing material is laid in the formed recess under the dividing strip, the edges of which are placed along the projected line of the side stone so that the concrete tooth of the side stone completely overlaps the edges of the waterproofing material, as shown in FIG. one.

If necessary, the waterproofing material is fixed to the pavement with anchors (the step of the anchors is determined on the spot, based on the flexibility and stiffness of the waterproofing material) or other known methods.

As a waterproofing material can be used geotextile, geomembrane type LDPE (Low-Density Polyethylene), as well as any materials similar in waterproofing properties.

The thickness and strength of the waterproofing material must be sufficient for the successful completion of installation work. Cross and longitudinal seams of waterproofing material must be sealed without fail.

Sealing the joints can be done with a special welding machine, or by coating with hot bitumen. In addition, all joints of the waterproofing material to the already installed road constructions (storm sewer wells, foundations of outdoor lighting poles, TSODD signs, etc.), as well as to the installed drainage wells, must be treated with hot bitumen smear.

After laying a layer of waterproofing material in the lower deepened part of the recess of the dividing strip, a strip of permeable geotextile material is laid out, onto which a drainage pipeline is later laid in a crushed stone layer or without a crushed stone layer.

The width of the strip of permeable geotextile material should be sufficient for the subsequent creation of a holder for crushed stone material, on average it is about 1 m.

The drainage pipeline is mainly made of a polyethylene pipe wrapped in geo-fabric with a perforation of 110 mm in diameter. The ends and / or nozzles of the drainage pipe are brought into the drainage wells and are choked.

On top of the drainage pipe, crushed stone of the predominant fraction 20-40 is poured, so that a layer of at least 15 cm is above the pipe to prevent siltation of the drainage pipes.

After crushing the gravel, the free ends of the water-permeable geotextile material are wound on top of the crushed stone layer, thus creating a filter cage, which at the first stage of the passage of water will cut off clay particles that can silt the drainage pipes. The same filtering function is performed by crushed stone and geotextile holder of the drainage pipe.

During the creation of the drainage cage, the edges of the waterproofing material adjacent to the roadway are parallelly fixed by installing the side stones in the design position and attaching the edges of the waterproofing material to it.

After creating a drainage clip and fixing the edges of the waterproofing material, the notch of the dividing strip is covered with backfill soil to the design marks, after which the layer of vegetable soil is filled.

The device operates as follows:

Residual water from the irrigation of the dividing strip, storm water, and also water from melting snow pass through the soil to fill the dividing strip and flow down the waterproofing material to the lower point of the excavation under the dividing strip, where later, being filtered through a layer of geotextile-crushed stone-geotextile of the drainage cage, into the drain pipe. Water flows through a drain pipe into a drainage collector and / or into drainage wells, from where water is discharged to a predetermined location.

As a result, the subgrade - the base of the pavement as a result, becomes completely protected from water penetrating into it from the soil filling the dividing strip, which is especially important and significant for roads on subsiding soils.

Thus, the proposed device waterproofing the dividing strip completely prevents the penetration of water from the irrigation system and storm water from the soil filling the dividing strip into the subgrade of the base of the road pavement of the road.

This provides the opportunity to achieve the desired technical result and a causal relationship between the essential features of the utility model and the achieved technical result.

This utility model can be used in the construction, repair and reconstruction of roads on various, mainly on subsiding soils.

The individual parts and units of the device according to the utility model can be made of materials commonly used in the construction of highways using the technologies commonly used in road construction.

Materials, specific dimensions and individual design features of individual units of the device according to the utility model can be selected from standard sizes and standards of road construction and operation of roads.

Utility models described in detail in the sections "Disclosure of the invention", "Brief description of the drawings" and "Implementation of a utility model" design and functional features of the manufacture and use of the proposed device and method prove the possibility of manufacturing the device as a whole and its individual components industrial, as well as the implementation of the method industrial method and its use in the road industry.

Given the novelty and non-obviousness of the essential features of the invention, shown in the section "Prior art", "Disclosure of the invention", "Brief description of the drawings" and "Implementation of the invention", the materiality of all general and private features of the invention, proved in the sections "Implementation of the invention", industrial the feasibility of the invention, the achievement of the required technical result and its causal relationship with the set of essential features of the invention, in our opinion, the claimed utility model satisfies steals all the requirements of eligibility criteria for utility models.

Thus, there is every reason to assert that the utility model meets the requirements of the eligibility criteria of "novelty", "inventive step" and "industrial applicability", and the analysis carried out in the description also shows that all the general and particular features of the utility model are significant, since each of them is necessary, and all together they are not only sufficient to achieve a technical result, but also allow you to implement a useful model in an industrial way.

Claims (8)

1. The waterproofing device of the dividing strip of road pavement of a road, characterized in that it comprises means of waterproofing the dividing strip and a means for removing water from the ground to fill the dividing strip, arranged to prevent water from penetrating the soil from filling the dividing strip into the subgrade of the base of the pavement the road. 2. The device for waterproofing the dividing strip of road pavement according to claim 1, characterized in that the means of waterproofing the dividing strip is made in the form of a layer of waterproofing material located under the ground to fill the dividing strip. 3. The device for waterproofing the dividing strip of road pavement of a highway according to claim 2, characterized in that it contains a waterproofing material in the form of a geotextile web, a geomembrane of the LDPE type or a material similar in waterproofing properties. 4. The device for waterproofing the dividing strip of road pavement according to claim 2, characterized in that the edges of the underground strip filling the dividing strip of the layer of waterproofing material are hermetically connected to the side stones located at the edges of the dividing strip, for example by placing the edges of the waterproofing material in the concrete bases of the side stones by sticking waterproofing material onto the surface of the side stones using hot bitumen or by fixing waterproofing material for side stones with fixing dowels. 5. The device for waterproofing the dividing strip of road pavement according to claim 1, characterized in that the means for draining water from the ground filling the dividing strip is made in the form of a drainage pipe located above the layer of waterproofing material, communicating with the drainage collector and / or drainage wells. 6. The waterproofing device of the dividing strip of road pavement according to claim 5, characterized in that the drainage pipe located above the layer of waterproofing material is made in the form of a perforated polymer, ceramic or composite pipe. 7. The waterproofing device of the dividing strip of the road pavement of a highway according to claim 5, characterized in that the drainage pipe located above the layer of waterproofing material is made up of a waterproof geotextile material and / or located in a crushed stone layer wrapped with a waterproof geotextile material. 8. The device for waterproofing the dividing strip of road pavement of a road according to claim 1, characterized in that a layer of vegetable soil with grass cover is located above the filling soil of the dividing strip.

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