Cold and arid region tunnel gentle slope type portal snow blowing prevention forest building and planting method

Abstract

The invention discloses a cold and arid region tunnel gentle slope type cave entrance snow blowing prevention forest building and planting method. Snow prevention forest belts are planted on the two sides of a tunnel portal front section highway, and a snow storage hedge is constructed on a gentle slope on a tunnel portal; the snow prevention forest belts extend outwards from the portal by 500-1,000 m and are formed by arranging a shrub hedge and snow blowing prevention forest in a staggered mode, and snow blocking forest arranged in a splayed mode is arranged on the two sides of the intersection of the highway and a mountain chain; the shrub hedge is arranged in a belt shape, is of a compact structure and is arranged in a shape like a Chinese character 'pin'; the snow blowing prevention forest is mixed coniferous forest; a light regulation forest belt is arranged on a slope located at the portal highway, the light regulation forest belt is composed of a plurality of rows of high arbors on the two sides of the highway, and the larger the distance between the arbors and the portal is, the smaller the height of the arbors, the lower the arbor planting density is, and the lower the formed crown is. The cold and arid region tunnel gentle slope type cave entrance snow blowing prevention forest building and planting method can keep water and soil loss of the tunnel portal, can effectively avoid accumulation of snowdrift on the highway at the tunnel portal, and damage caused by snowfall to traffic safety is reduced.

Description

technical field [0001] The invention belongs to the technical field of snow prevention design for highways, and in particular relates to a method for building anti-blowing snow forests at tunnel entrances with slow waves in cold and arid regions. Background technique [0002] With the further implementation of the country's western development strategy, transportation construction has become the focus of infrastructure construction in the western region at this stage. As the road network with the longest mileage, the widest distribution and the strongest transportation capacity in the western region, it can best meet the needs of the social market economy in the western region for transportation, and plays a pivotal role in the development of the national economy and the improvement of people's living standards. However, due to the harsh natural environment and the impact of various natural disasters, the function of road transportation is seriously restricted. Among them, w...

AI Technical Summary

Problems solved by technology

Although this invention can weaken the wind energy of wind blowing snow and reduce the hidden danger of road safety caused by wind blowing snow, its technology cannot solve the harm of preventing snow blowing at the entrance of road tunnels.

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