RU2270900C2 - Slope consolidation method - Google Patents

Abstract

FIELD: building, particularly to erect ground structures, namely to consolidate slopes, to reinforce banks of motor roads and railroads, dams, irrigation channels and river banks.

SUBSTANCE: method for slope reinforcing with members arranged in slope body involves preparing ground surface by terracing disturbed layers thereof in accordance with geological structure thereof along with substituting ground in unstable areas for draining material; compacting the draining material and reinforcing thereof with grids of polymeric material having openings of not more than 1 m; arranging zinc-coated steel mesh formed by two-for-one twisting method and having hexahedral openings; connecting the steel mesh with above grids; dividing prepared slope surface into sections with pitch not exceeding 3 m by installing the partitions of zinc-coated steel mesh formed by two-for-one twisting method having height of not more than 0.3 m; scattering loamy ground to form loamy layer having 0.1 m thickness; compacting the loamy ground; scattering vegetable soil; laying bio-textile on vegetable soil and planting greenery.

EFFECT: increased flexibility of protective coating and improved environment protection.

2 dwg

Description

The invention relates to the construction of earthworks and can be used to strengthen slopes, slopes, roadbed of roads and railways, dams, reclamation canals and shores of water arteries.

Closest to the invention is a method of strengthening slopes, including reinforcing elements located in the body of the slope (Russian patent No. 2064998, CL E 02 D 17/20, 1996).

However, the known technical solution does not have sufficient strength and flexibility in conditions of an unstable state of the soil, which leads to the destruction of the slope surface and environmental damage.

The objective of the present invention is to increase the strength and flexibility of the protective coating of the slopes and environmental protection of the environment.

The problem is solved due to the fact that in the method of strengthening slopes before reinforcing, the soil surface of the slope is prepared by terracing the disturbed layers in accordance with its geological structure, with the soil being replaced by unstable sections of the slope with drainage material, which is compacted and reinforced with horizontal polymer gratings in increments no more than 1 m, after which a double-torsion steel galvanized mesh with hexagonal cells is placed on the surface of the slope and connected to the specified above the gratings, then the surface of the slope is divided into sections with a step not exceeding 3 m, by installing partitions of galvanized steel double torsion mesh with hexagonal cells with a height of not more than 0.3 m, after which a layer of loamy soil is poured into the sections, and the last is laid Biotextiles and landscaping.

The technical result of the invention is that it provides high strength and flexibility of the protective coating in conditions of unstable soil conditions.

The proposed method is illustrated by drawings: in Fig.1 shows a device for the construction of reinforcement, in Fig.2 - node A in Fig.1.

The device for the construction of the slope reinforcement includes polymer gratings 1, galvanized steel double mesh 2 with hexagonal cells and vertical partitions 3 made of double galvanized galvanized mesh with hexagonal cells. Vertical partitions 3 divide the surface of the slope into sections 4.

The method is as follows: first, they prepare the soil surface of the slope, for which terracing of the violated slope is carried out by moving local soil from steep ledges to lower sections. Moreover, in areas where landslide processes develop, soil excavation in the landslide body is carried out, to the extent possible, to its slip plane. Then drainage material is poured onto this surface, for example sand, which is compacted, poured with water and reinforced with horizontally placed polymer grids with a pitch of not more than 1 m. Polymer grids are made of polypropylene with a tensile strength of at least 21 kN / m and a minimum tensile strength a gap of at least 60 kN / m.

Next, on a prepared slope surface, a double-torsion steel galvanized mesh with hexagonal cells is installed. The mesh is made of dense galvanized steel wire with a tensile strength of 35-50 kg / mm ² . Then the mesh is connected to reinforcing polymer gratings, after which the surface of the slope is divided into sections. To do this, install partitions from galvanized steel double-torsion mesh with hexagonal cells with a height of not more than 0.3 m and a step not exceeding 3 m. Then, loamy soil with a thickness of 0.1 m is poured into the formed frame, compacted, and then a layer of plant soil is laid, covered with biotextiles and landscaped.

The proposed method for the protective coating of slopes provides high strength and flexibility in conditions of unstable soil conditions, does not violate the environment and reliably protects slopes or slopes in difficult engineering-geological and hydrogeological conditions.

Claims (1)

A method of strengthening slopes, including reinforcing with elements located in the body of the slope, characterized in that before reinforcing, they prepare the soil surface of the slope by terracing the broken layers in accordance with the geological structure, replacing the soil of unstable sections with drainage material, which is then compacted and reinforced with polymer gratings in increments of not more than 1 m, after which a double-torsion steel galvanized mesh with hexagonal cells is placed and connected to the above with brooms, then the prepared slope surface is divided into sections with a step not exceeding 3 m, by installing partitions of galvanized double-torsion steel mesh no more than 0.3 m high, after which loamy soil 0.1 m thick is poured, compacted, and a layer is laid plant soil, and the latter is laid biotextiles and landscaped.

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