Soil nail grass-planting high abrupt slope protecting structural system and construction method thereof

Abstract

A soil nail grass-planting high abrupt slope protecting structural system comprises a planting layer, soil nail reinforcing bodies, planting boards and a metal screen. The planting boards are fixed to a diagonal plane of a rock-soil slope through the soil nail reinforcing bodies and divide the slope into a plurality of section surfaces; the metal screen and the planting layer are laid on the section surfaces, and the planting layer is fixed by the metal screen and the planting boards through the soil nail reinforcing bodies; through the combined action of the metal screen, the planting layer, the planting boards and the soil nail reinforcing bodies, the soil nail grass-planting high abrupt slope protecting structural system which can reinforce, protect and beautify the rock-soil slope is formed. A construction method of the structural system includes the technological processes of preparation of construction, construction of the first row of soil nail reinforcing bodies, installation of the first row of planting boards, sequential installation of the rest of soil nails and the planting boards, laying of monitoring points, laying of the metal screen, laying of the planting layer, covering of non-woven cloth and maintenance. The structural system is simple, short in construction period, low in labor investment and affordable; scaffold operation is not needed during construction on the abrupt slope, safety ropes are used for protection, and the planting boards are used as treading points, so that the safety coefficient is high.

Description

technical field [0001] The invention relates to a high and steep slope protection and greening structure system and a construction method thereof, in particular to a high and steep slope soil nailing and grass protection structure system and a construction method thereof. Background technique [0002] On construction sites on both sides of new roads and railways, in order to protect the original natural waters and vegetation in the site and maintain earthwork balance, slope greening method is often used to excavate and open slopes on both sides of the road. [0003] At present, the "framed soil greening method" is widely used for earthwork slope support (see 11-1~ Figure 11-2 ); the slope support technology is: on the steep rock slope surface, use engineering bolts to fix and reinforced concrete beams to form planting grooves, and plant trees, shrubs and climbing vines on the planting soil in the grooves. The process flow is: setting up scaffolding → forming holes with anch...

AI Technical Summary

Problems solved by technology

[0006] This method uses large-diameter anchor rods and metal mesh to build a stable internal structural stress system on the slope soil, and sprays a green concrete protection system on the slope surface. The two systems work together to protect each other and reinforce the slope; Excessive use and covering of concrete will pollute the environment to a certain extent, which is not conducive to the natural water cycle; it is not material-saving; plants can no longer be planted after covering the concrete, artificially reducing the vegetation area and reducing the quality of perception

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