Protective method of planting grass on the side slope of volcanic ash silt soil roadbed

Abstract

The invention discloses a protection method for planting grass on the side slope of a volcanic ash silty soil subgrade, which comprises the following steps: step 1, leveling the side slope surface and building a first concrete drainage channel on the top of the side slope along the extension direction of the subgrade, and Concrete cast-in-place second drains are built below along the extension direction of the subgrade; Step 2, a plurality of first water guides are built at intervals along the length direction of the first drains on the side slope; Step 3, in any adjacent two A slope is excavated between the first water guide grooves, the two slopes form a V shape and the intersection is lower than the first water guide groove, and a second water guide groove is built along the length direction at the intersection of the two slopes, and the second water guide groove is connected to the first water guide groove. The first water guide grooves are parallel, and the top of the second water guide grooves is fixedly connected to and communicated with the bottom of the first water drainage grooves; step 4, planting plants on the slope and watering them for maintenance. The invention realizes the wind-shielding function by setting the slope, reduces the influence of the wind on the side slope, and plays a protective role on the side slope.

Description

technical field [0001] The invention relates to the technical field of roadbed protection. More specifically, the invention relates to a protection method for planting grass on the side slope of a volcanic ash silty soil roadbed. Background technique [0002] The roadbed is the basis for the normal operation of vehicles and is an important part of the road. In the process of highway construction, many slope projects will inevitably occur due to terrain reasons. These generated slopes destroy the ecological balance of the original landform soil vegetation system. , the soil’s ability to resist rainwater erosion is reduced, especially when the roadbed passes through the volcanic deposition area, the stability of the slope is low. At present, most of the slopes are protected by planting plants and installing slope protection bricks to reduce The runoff of the subgrade slope keeps the subgrade slope in a certain spatial shape, thus reducing the erosion of the slope by rainfall....

AI Technical Summary

Problems solved by technology

[0002] The roadbed is the basis for the normal operation of vehicles and is an important part of the road. In the process of highway construction, many slope projects will inevitably occur due to terrain reasons. These generated slopes destroy the ecological balance of the original landform soil vegetation system. , the soil’s ability to resist rainwater erosion is reduced, especially when the roadbed passes through the volcanic deposition area, the stability of the slope is low. At present, most of the slopes are protected by planting plants and installing slope protection bricks to reduce The runoff of the subgrade slope keeps the subgrade slope in a certain spatial shape, thus reducing the erosion of the slope by rainfall. However, due to the low density and low water content of the volcanic ash silt soil, strong winds and rainfall can cause damage to the slope. destroy

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