Large-gradient stone side slope protection structure based on rainwater collecting bags

Abstract

The invention discloses a large-gradient stone side slope protection structure based on rainwater collecting bags. The protection structure is designed in a modular manner; annular fences can be welded with a framework in advance; during a field installation, only the protection structure modules need to be fixed on a mountain slope through anchor fixing holes, and plant components are clamped on the inner sides of the annular fences, so that the installation process can be simplified, and the installation difficulty is lowered; the annular fences are fixed on the framework, and the conical plant components are clamped on the inner sides of the annular fences, so that the protection structure modules are simple and convenient and light in weight, the planting difficulty is lowered, and meanwhile the cost is lowered; the rainwater collecting bags are arranged below the plant components for collecting rainwater falling from the openings of the plant components, so that rainwater can fill automatically on rainy days for later use; the lower ends of the rainwater collecting bags are provided with openings which are connected with drip irrigation pipes, and control valves can be switched on for supplying water to the whole side slope needing protection through the drip irrigation pipes on little-rainfall seasons, so that moisture required by vegetation growth is ensured, and the water transportation cost is lowered.

Description

technical field [0001] The invention relates to a shrub slope protection construction technology in a karst (KST) area, in particular to a large-slope stone slope protection structure based on a rainwater collection bag. Background technique [0002] Karst landform refers to various landforms formed by the dissolution of soluble rocks by water and the accompanying mechanical action. Karst landforms are widely distributed in Guangxi, Guizhou, Yunnan and other places in China. In recent years, with large-scale engineering construction and mining, a large number of exposed slopes have been formed in karst landforms, resulting in a large number of rocky slopes that cannot recover vegetation. It is almost impossible to restore vegetation coverage naturally on the surface in a short period of time; In some slope engineering reinforcement measures, the emphasis is on strength and efficiency, and most of them use gray protection such as stone masonry and shotcrete, which destroys th...

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Problems solved by technology

In recent years, with large-scale engineering construction and mining, a large number of exposed slopes have been formed in karst landforms, resulting in a large number of rocky slopes that cannot recover vegetation. It is almost impossible to restore vegetation coverage naturally on the surface in a short period of time; Some slope engineering reinforcement measures mostly pursue strength and efficacy, and most of them use gray protection such as stone masonry and shotcrete, which destroys the harmony of natural ecology

With people's emphasis on ecological environment protection and the further increase of my country's economic strength, vegetation slope protection engineering technology has gradually been applied to engineering construction. Existing applications mostly use blasting afforestation methods, which are not suitable for karst landforms, or The slope is fixed by masonry and divided into small grids to make vegetation components, and then soil is planted in the divided grids to cultivate vegetation. Although such vegetation slope protection engineering technology has a certain greening effect, it still cannot meet the ecological requirements. Harmony and unity, man-made traces are too obvious

Most of the existing artificial slope greening and reconstruction projects are aimed at rocky slopes with a slope less than 75°. Both the shrub slope protection planting components set on the slope in karst area and the T-shaped planting component for slope protection shrub set on the karst area slope can achieve a good artificial soil attachment rate, which can be used after construction. Vegetation greening and regeneration will be completed within a few years; however, facing the complex and changeable characteristics of rocky slopes, rocky slopes larger than 75° or even 90° are often encountered during construction. There is no good solution yet. The common method is to re-clean the rocky slope to make the slope smaller. However, this method requires a large amount of construction, a long period of time, and is more dangerous

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