Loess landslide control system based on ecological remediation

Abstract

The invention discloses a loess landslide control system based on ecological remediation. After substep square cutting of a loess landslide mass, the side slope of the loess landslide mass is of a multistep structure, a square-cut side slope is formed, single-row slide-resistant piles are arranged on a slide-resistant section on the front portion of the landslide mass, a retaining wall is constructed at the front edge of the landslide mass, a drainage project is constructed on the slope face and periphery of the landslide mass, and a three-dimensional soil engineering grid grass planting protection slope is laid on the slope face of the square-cut side slope. Cutting, retaining, protection and drainage in landslide treatment are combined, the landslide slide force is reduced to the maximum extent, the landslide skid resisting force is increased to the maximum extent, the influence of rainfall on the slope is eliminated, a slope protection system with an ecological function is constructed through a three-dimensional soil engineering grid, the functions of self washout resistance, slide force resisting reinforcement, ecological restoration and the like of the landslide mass are improved, the overall stability of landslide is effectively improved, and therefore the aim of permanently controlling loess landslide is achieved.

Description

technical field [0001] The invention belongs to the field of geological engineering and relates to a loess landslide prevention and control system based on ecological restoration. Background technique [0002] With the continuous expansion of the western development process, more and more engineering construction, including road, railway engineering, and urban construction, have been carried out in depth in the Loess Plateau area. At present, the biggest impact on engineering construction in the Loess Plateau is the loess landslide. Because of its frequent, widespread, complex and catastrophic characteristics, the loess landslide seriously endangers the life and property of people in the Loess Plateau, hydropower, transportation, industry and agriculture. Therefore, in order to ensure the safety of people's life and property in the Loess Plateau area and the smooth development of the western development project, it is necessary to propose a permanent control system for loess...

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Problems solved by technology

At the same time, people in the Loess Plateau area have been accustomed to living near the mountains since ancient times, and have cultivated wasteland on the Loess Plateau. The combined effect of the two aspects has resulted in the loess area where there are more human engineering activities compared with the loess area without the influence of human engineering activities. Slopes, vegetation coverage is sparse, and most of the precipitation in the loess area occurs in the form of torrential rain. The erosion of rainwater can easily cause the loss of topsoil and grass seeds. In addition, the drought period is long and the evaporation is large. The survival rate of vegetation on the slope itself is low. During heavy rain, the vegetation on the slope often does not have the effect of anti-erosion and anti-sliding. The rainwater infiltrates along the vertical joints of the loess, easily forming through cracks, increasing the bulk density of the soil, and lacking plant roots to strengthen the soil and resist erosion and anti-sliding. role, easier to slide

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

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