RU2403334C1

RU2403334C1 - Method and design of motor road erection with hard surface

Info

Publication number: RU2403334C1
Application number: RU2009129783/03A
Authority: RU
Inventors: Игорь Антонович Холмянский (RU); Игорь Антонович Холмянский
Original assignee: Игорь Антонович Холмянский
Priority date: 2009-08-03
Filing date: 2009-08-03
Publication date: 2010-11-10

Abstract

FIELD: construction.

SUBSTANCE: method for erection of motor road includes erection of earth bed or earth bed with laid layer of crushed stone covered with a layer of soil, for instance sand, on which single-rope geogrid is laid, boards are inserted in its cells, having bent loops at the ends, covering geogrid ropes that adjoin at the ends, fixing board in cell. Vertical fixation of boards is done by either bending loops under ropes of cell or pouring gap between boards with mastic, asphalt concrete or cement concrete. Design of motor road provides for the fact that on earth bed or on layer of crushed stone covered by soil, there is a single-rope geogrid and boards arranged, at the same time boards are installed in cells of geogrid, and bent loops protruding at the ends of boards and covering adjacent ropes, are simultaneously engaged with neighboring loops, which limits both vertical and horizontal displacement of boards, and units of geogrid cells are located at the butt joint of cut board corners.

EFFECT: improved bearing capacity of motor roads with provision of evenness and durability.

13 cl, 4 dwg

Description

Способ и конструкция возведения автомобильной дороги с твердым покрытием относятся к дорожному строительству и могут быть применены к строительству взлетных полос аэродромов.The method and design of the construction of a paved highway relate to road construction and can be applied to the construction of airfield runways.

Известно применение цементно-бетонных плит для твердого покрытия автомобильных дорог по а.с. №1590504 A1, Кл. E01C 5/00, 1990 г.; а.с. №2000377, Кл. E01C 5/00, 1993 г.; а.с. №737541, Кл. E01C 5/08, 1980 г.; а.с. №842117, Кл. E01C 5/06, 1981 г.; а.с. №1726627, Кл. E01C 5/00, 1992 г. и др., но все они отличаются либо конфигурацией, рельефом или оребрением на опорной поверхности плит, или видами металлических крючков или замков соединения торцов плит, и у всех у них из-за неравномерной осадки земляного полотна возникают перекосы плит, нарушается ровность дорог и затрудняется эксплуатация.It is known the use of cement-concrete slabs for the hard surface of roads according to as No. 1590504 A1, Cl. E01C 5/00, 1990; A.S. No. 2000377, Cl. E01C 5/00, 1993; A.S. No. 737541, Cl. E01C 5/08, 1980; A.S. No. 842117, Cl. E01C 5/06, 1981; A.S. No. 1726627, Cl. E01C 5/00, 1992, etc., but they all differ either in the configuration, relief, or finning on the supporting surface of the plates, or in the types of metal hooks or locks of the ends of the plates, and all of them, due to uneven settlement of the subgrade, distortions of plates, road flatness is broken and operation is complicated.

Цель изобретения - повышение несущей способности автомобильных дорог с обеспечением ровности и долговечности.The purpose of the invention is to increase the bearing capacity of roads with ensuring evenness and durability.

Предлагаемый способ и конструкция возведения автомобильных дорог включает возведение земляного полотна, укладку одноканатной геосети, в ячейки которой вставляют армированные бетонные, керамические или синтетические твердые плиты, причем выступающие по боковым торцам плит петли арматуры прочно охватывают канаты геосети. Затем производят уплотнение дорожной одежды катками, и в щели между плитами может быть залита мастика или асфальтобетон, а поверх плит может быть уложен слой асфальтобетона.The proposed method and design of the construction of roads includes the construction of a subgrade, laying of a single-wire geogrid, in the cells of which reinforced concrete, ceramic or synthetic solid slabs are inserted, and the reinforcement loops protruding along the lateral ends of the plates firmly cover the geogrid ropes. Then the pavement is compacted with rollers, and mastic or asphalt concrete can be poured into the gap between the plates, and a layer of asphalt concrete can be laid on top of the plates.

Предложенная конструкция автомобильной дороги содержит земляное полотно, которое может быть покрыто укатанным слоем щебня, армированными керамическими или синтетическими твердыми плитами, имеющими по боковым торцам петли арматуры, и одноканатную геосеть с ячейками под плиты, причем петли арматуры плиты плотно охватывают все канаты геосети, окаймляющие плиту, а в щели между плитами заливается мастика, или асфальтобетон, или цементобетон. Поверх плит может быть уложен слой асфальтобетона.The proposed construction of the road contains a subgrade that can be covered with a rolled-up layer of crushed stone, reinforced with ceramic or synthetic hard plates with reinforcement loops on the lateral ends, and a single-wire geo-network with slots for the slabs, and the reinforcement loops of the slab tightly cover all the ropes of the geo-network bordering the slab and mastic, or asphalt concrete, or cement concrete, is poured into the gap between the plates. A layer of asphalt concrete can be laid on top of the slabs.

Изображение поясняется фиг.1, 2, 3, 4.The image is illustrated in figures 1, 2, 3, 4.

На фиг.1 изображена одноканатная геосеть 1, охватывающая своей ячейкой по боковым торцам со всех сторон каждую плиту 2 (фиг.3). Узлы ячейки геосети получены либо переплетением 3, либо композитным креплением 4 (фиг.1). На фиг.2 приведена плита 2 дорожной одежды. Она выполнена по размерам ячейки геосети 1 и имеет две изогнутые петли 5 в виде арматуры, которые охватывают своими захватами 6 канаты геосети 1 с двух сторон, удерживая плиту от смещения, как в горизонтальной плоскости, так и вертикальной. Петли 5 уложены взаимно перпендикулярно; так, чтобы из каждой боковой грани плиты выступал захват 6. Боковая поверхность 7 захвата 6 петли 5 (фиг.3, вид С) входит с небольшим зазором в захват соседней плиты, что ограничивает их относительное смещение. Для размещения узлов геосети у плит срезаны углы 8 (фиг.2) и имеется оребрение 9 нижней поверхности.Figure 1 shows a single-wire geogrid 1, covering with its cell along the lateral ends from each side each plate 2 (figure 3). The nodes of the geogrid cell are obtained either by interlacing 3 or by composite fastening 4 (Fig. 1). Figure 2 shows the plate 2 of pavement. It is made according to the size of the cell of the geogrid 1 and has two curved loops 5 in the form of reinforcement, which cover 6 ropes of the geogrid 1 on both sides with their grips, holding the slab from displacement, both in the horizontal plane and vertical. Loops 5 are laid mutually perpendicularly; so that a grip 6 protrudes from each side face of the plate. The lateral surface 7 of the grip 6 of the loop 5 (FIG. 3, view C) enters into the grip of an adjacent plate with a small gap, which limits their relative displacement. To place the nodes of the geogrid at the slabs, the corners 8 are cut (Fig. 2) and there is a finning 9 of the lower surface.

Для повышения сцепления с колесом автомобиля верхняя поверхность плиты покрыта сеткой невысоких штырей 10 со сферическими головками 11.To increase traction with the car wheel, the upper surface of the plate is covered with a grid of low pins 10 with spherical heads 11.

С целью более прочного закрепления покрытия относительно земляного полотна боковые края геосети укрепляются с некоторым шагом по полотну дороги анкерными шпильками 12 в виде скобы, имеющими два заостренных зубца 13 и зазубрины 14 (фиг.4). Для наилучшего охвата каната геосети в щель 15 между плитами заливается мастика, или асфальтобетон, или цементобетон (фиг.3), которые вместе с захватами 6 в нижней части щели образуют клинья 16 (сечение Г-Г, вид Д фиг.3), удерживающие плиту от возможного смещения. По завершении работ поверх плит может быть уложен слой асфальтобетона.In order to more firmly fix the coating relative to the subgrade, the lateral edges of the geo-network are strengthened with a certain step along the road surface with anchor pins 12 in the form of a bracket having two pointed teeth 13 and notches 14 (Fig. 4). For the best coverage of the geogrid rope, a mastic, or asphalt concrete, or cement concrete (Fig. 3) is poured into the gap 15 between the plates, which together with the grippers 6 form wedges 16 in the lower part of the gap (section G-D, view D of Fig. 3), holding plate from possible displacement. Upon completion of work, a layer of asphalt concrete may be laid on top of the slabs.

Claims

1. The method of construction of a paved road, including the construction of a subgrade, pavement of slabs, characterized in that on the subgrade or subgrade with a laid layer of rubble, sprinkled with a layer of soil, such as sand, lay a single-wire geogrid, in the cells of which insert plates with curved reinforcement loops protruding from their ends, covering ropes bordering the plate and fixing the plate in the geogrid cell.

2. The method of construction of a paved highway according to claim 1, characterized in that the slabs are made of concrete, or ceramic, or synthetic.

3. The method of erecting a paved highway according to claim 1, characterized in that the curved loops of the plate reinforcement protruding at the ends not only cover geo-network ropes adjacent to the ends, but also enter the loops of adjacent plates, fixing them.

4. The method of construction of a paved highway according to claim 3, characterized in that the hinges of the plate reinforcement after being installed in the geo-grid cell are bent under the geo-network rope, fixing the plates from vertical displacement.

5. The method of construction of a paved highway according to claim 4, characterized in that either mastic or asphalt concrete or cement concrete are laid in the gap between the plates on the loops and ropes of the geogrid, which fix the plates with vertical wedges with their wedges.

6. The method of construction of a paved highway according to claim 1, characterized in that the lateral edges of the geogrid along the roadway are fixed with a certain pitch by two-horned anchor pins stuck into the subgrade.

7. The design of the road with a hard surface, containing subgrade, pavement made of slabs, characterized in that on the subgrade or layer of crushed stone sprinkled with soil, there is a single-wire geo-network and plates, while the single-cable geo-network has cells in which plates with rebar protruding at the ends in the form of curved loops, covering ropes, fixing the plate in the cell of the geogrid.

8. The design of the road with a hard surface according to claim 7, characterized in that the plates are made of concrete, or ceramic, or synthetic.

9. The construction of the paved road according to claim 7, characterized in that the curved loops of the reinforcement plates covering the adjacent ropes of the geo-grid cell are simultaneously linked to adjacent loops, forming a single coating without relative displacement of the plates.

10. The construction of the paved road according to claim 7, characterized in that, to prevent vertical displacement of the plates, curved loops are bent at the bottom under the ropes of the geogrid cell.

11. The construction of the paved road according to claim 7, characterized in that either mastic or asphalt concrete or cement concrete are laid in the gap between the plates on the loops and ropes, creating wedges under the ropes for fixing from vertical displacements.

12. The construction of the paved road according to claim 7, characterized in that to increase the adhesion to the tires of the wheels of the car on the upper surface of the plates are low pins with a spherical head, and the lower surface of the plates has intersecting ribs to increase the supporting surface, to prevent the plate from shifting and skew when driving the wheels of the car.

13. The construction of the paved highway according to claim 7, characterized in that the lateral edges of the geogrid along the roadbed are stitched with a certain pitch by two-horned anchor pins stuck into the subgrade.