Method of protection of earthworks from the sandy soil

 

The invention relates to the construction and can be used for the protection of earthworks from the sandy soil from wind erosion. Method of protection of earthworks from the sandy soil includes strengthening the upper part of slopes by stacking them geotextile panels by fastening the edges of the canvases on the slopes. What's new is that before laying geotextile paintings on each slope cut into the ledge concave profile and on the surface of the ledge is applied liquid binder, the lower edge of the layers of geotextile is placed on the ledge with the formation of the tray is applied to the surface of the tray liquid binder and poured the sandy ground by his removal from the outer edge of the ledge. The technical result of the invention is to improve the reliability of mounting of geotextile paintings to the ground and durability of the protective coating. 3 Il.

The invention relates to the construction and can be used for the protection of earthworks from the sandy soil from wind erosion.

There is a method of protection of earthworks from the sandy soil.with. NO. 545721, E 02 D 3/12, E 02 D 17/20, 1977).

This known method is not effective enough due to low tradingeye continuity of the protective film due to the occurrence of thermal cracks with significant daily and seasonal fluctuations in temperature leads to a rapid deterioration of her in the future under the influence of wind and reduced durability.

The closest in technical essence and the achieved result is a method of protection of earthworks from the sandy soil, including strengthening the upper part of slopes by stacking them geotextile panels by fastening the edges of the canvases on the slopes (standards of design and construction of the subgrade of roads in sandy deserts. VSN 77-89. The Ministry of transport construction of the USSR. M: Soundarya, 1991, S. 27, 43 - prototype).

The disadvantage of this method is the lack of reliability of fastening the edges of the layers of geotextile on the slopes of the staples of the reinforcing steel. When exposed on the slope of the wind flow region geotextile paintings on the areas between the mounting brackets are lifted, falling under the cloth wind flow pull staples out of the ground. Mounting canvases clips of reinforcing steel are characterized by low resistance against pulling out, especially in dry sandy soils. When strong winds common to arid and desert areas, this leads to the ejection of staples, the discontinuity of the protective coating and the blowing sand soil with slopes.

The task of the invention is to improve the reliability of fastening of geotextile paintings to the ground earthworks from the sandy soil, including strengthening the upper part of slopes by stacking them geotextile panels by fastening the edges of the canvases on the slopes, according to the invention before installation of geotextile paintings on each slope cut into the ledge concave profile and on the surface of the ledge is applied liquid binder, the lower edge of the layers of geotextile is placed on the ledge with the formation of the tray is applied to the surface of the tray liquid binder and poured the sandy ground by his removal from the outer edge of the ledge.

In the present method of improving reliability of fastening of cloths to the ground slopes and durability of the protective coating is achieved by impregnation binder sandy soil as the top and bottom edges of the canvases placed on the escarpment slopes. The edges of the canvases are trapped in a certain volume of processed astringent sandy soil in soil anchor. This ensures continuous along the length of the earthen constructions reliable contact of the edges of the canvases with the ground slope, unlike the prototype, where the edges of the canvases are mounted by brackets at regular intervals. Continuous along the length of the earthen structures anchoring the edges of the canvases prevents the ingress of wind flow under the geotextile protective Lituanie the edges of the canvases and the formation of a soil anchor increases its strength and wind resistance.

Thus, the proposed differences reported by the claimed method a new technical effect is providing continuous along the length of the ground construction and durable anchoring the edges of the canvases on the slopes, which increases the reliability of fastening of cloths to the ground slope and the durability of the protective coating.

In Fig.1 presents a diagram of one embodiment of the protection of the slopes of the earthen structures of the embankment of the road, built of sand dunes, in Fig.2 - detail of protection after laying layers of geotextile on the slope of Fig.3 - detail of protection at the time of application of the binder on the edges of the canvases in the tray on the ledge.

The method is as follows.

Before laying geotextile paintings on each slope cut into the ledge concave profile and on the surface of the ledge is applied liquid binder, the edge of the layers of geotextile is placed on the ledge with the formation of the tray is applied to the surface of the tray liquid binder and poured the sandy ground by his removal from the outer edge of the ledge.

Example.

After the construction of embankments 1 and the protective layer 2 of clay soil on top of the mound, dosplayas.com on each slope cut ledge 3 with reverse slope bias. Of an autoroad oiler moving on bituma emulsion, oil and so on). After impregnation binder soil layer 4, geotextile 5 from non-woven synthetic material placed on the surface of a slope streaks and connected the separate pieces by gluing or stitching. The top edge of the paintings of 6 taken out on the side of the road, covered clay soil and the soil was condensed trailer roller. The bottom edge of the 7 paintings were placed on the ledge with the formation of the tray and pressed to the treated liquid binder to the surface of the sand, hand roller. Then on the edge of the paintings in the tray was applied liquid binder 8 of an autoroad oiler and immediately fell asleep tray sandy soil, moving it to the outer edge 9 of the ledge, while sandy soil is impregnated with a liquid binder, resulting in the over the edge paintings on the ledge formed layer 10 fortified astringent sandy soil. Thus, arranged according to the proposed method the protective coating has a high wind resistance, durability and reliability of fastening of cloths to the ground slopes continuously along the length of the earthen structures of the monolithic edges of the cloths treated with astringent soil, which increases its durability.

Claims

The way to protect the slope of the geotextile panels by fastening the edges of the canvases on the slopes, characterized in that before laying geotextile paintings on each slope cut into the ledge concave profile and on the surface of the ledge is applied liquid binder, the lower edge of the layers of geotextile is placed on the ledge with the formation of the tray is applied to the surface of the tray liquid binder and poured the sandy ground by his removal from the outer edge of the ledge.

 

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