A Loess Collapse Control Method Based on Ecological Restoration

Abstract

The invention discloses a loess collapse control method based on ecological restoration, and relates to the technical field of geological engineering. Cutting the upper part of the loess collapse by steps improves the shape of the high and steep slope at the hidden danger point of loess collapse. Seepage causes the expansion of vertical joints; at the bottom of the slope, reinforced fly ash hollow bricks are used for support, which is relatively low in cost compared with mortar masonry support structures. At the same time, glass fiber is used as reinforcement material inside, which effectively improves The tensile strength and durability of slope support, this prevention and control system can achieve an effective combination of ecological restoration and engineering treatment, eliminate the impact of precipitation on the slope, improve the slope's own functions such as erosion resistance and ecological restoration, and effectively greatly improve the overall stability of the collapse.

Description

technical field [0001] The invention relates to the technical field of geological engineering, in particular to a loess collapse control method based on ecological restoration. Background technique [0002] The loess was formed under the special climatic conditions of the Quaternary, and has special properties such as large pores, vertical joint development, and collapsibility. Steep soil slopes and even soil columns can be seen everywhere; secondly, the rainfall in the loess area is mostly concentrated from July to September every year, and most of them are in the form of heavy rain. A large amount of rainwater is poured in along the vertical cracks, and the bulk density of the soil increases, and the strength decreases greatly. This makes landslide disasters occur frequently in the Loess Plateau area. [0003] Due to the special topographical conditions in the loess area, there are few flat places due to bending and turning. In the process of industrial and civil construc...

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Problems solved by technology

[0004] At present, the western development process continues to develop, and more human engineering activities have resulted in sparse vegetation coverage on loess slopes, while precipitation in loess areas mostly occurs in the form of torrential rain, and the erosion of rainwater can easily cause the loss of topsoil and grass seeds. Large, the survival rate of vegetation on the slope itself is low, so during the heavy rain, the vegetation on the slope often cannot play the role of anti-erosion and anti-sliding, the rainwater infiltrates along the vertical joints of the loess, it is easy to form through cracks, and the bulk density of the soil increases , lacks the functions of plant roots to reinforce the soil, resist erosion and slide, and is more likely to collapse

However, most of the current vegetation slope protection measures rely solely on the soil-fixing effect of plant roots, and there are more heavy rains in summer in Northwest China. This form of slope protection is difficult to resist the erosion of plant seedlings by heavy rains, and thus fails to achieve the expected ecological restoration and anti-sliding The effect of reinforcement is also lacking in aesthetics

[0005] At present, most people in the Loess Plateau area live under high and steep slopes, and most of the houses built are close to the steep slopes, which are extremely vulnerable to the threat of geological disasters caused by loess collapse. Huge and expensive. At the same time, the Loess Plateau area is mostly high and steep slope terrain, and there are few flat and livable relocation sites. Most of the current relocation sites are on the top of the Loess Plateau. The traffic and water problems in these places are difficult to solve, causing local residents. Inconvenient life, difficult economic development

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