A flexible slope protection method for the natural slope of arsenic sandstone

Abstract

The invention provides a flexible slope protection method for a soft sandstone natural side slope. The method comprises the following steps of (1) slope surface early-stage cleaning; (2) net hanging; (3) micro lubricating system building; (4) spray coating; (5) plant planting and greening; (6) operation and maintenance. The method has the advantages that through a series of measures of the flexible slope protection method, a processed side slope surface layer soft sandstone composite body has the comprehensive performance such as excellent mechanical performance, ultraviolet degradation resistance performance, wind etching resistance performance, water etching resistance performance, gravity etching resistant performance, freeze thawing resistance, water preservation, heat insulation and fertilizer preservation, the soft sandstone can be fixed, meanwhile, the method is combined with plant-growing methods such as a seed spraying method, the vegetation recovery is promoted, and the water and soil maintaining effect is effectively improved. The flexible slope protection method is suitable for ecological control and restoration engineering of the soft sandstone natural side slope and is particularly suitable for soft sandstone regions with the serious water and soil loss.

Description

technical field [0001] The invention relates to a slope protection method for natural slopes, in particular to a flexible slope protection method for natural slopes of arsenic sandstone. Background technique [0002] In the border area of ​​Shanxi, Shaanxi and Mongolia in the Yellow River Basin, there are loose rock formations commonly known as "sandstone" by the local people. Interbedded rocks and argillaceous sandstones. The formation is a continental clastic rock series, with thin overlying strata and low pressure, resulting in low diagenesis, poor cementation between sand grains, and low structural strength. It is as hard as stone without water, and soft as mud when it meets water. [0003] At present, in order to solve the problem that the arsenic sandstone is as hard as a rock without water and as soft as mud when it meets water, domestic scholars have studied and proposed a variety of different control measures. It is difficult to fully implement the measures. Moreo...

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Problems solved by technology

[0003] At present, in order to solve the problem that the arsenic sandstone is as hard as a rock without water and as soft as mud when it meets water, domestic scholars have studied and proposed a variety of different control measures. It is difficult to fully implement the measures. Moreover, cement, stone, concrete and other hard materials are generally used as the main building materials in the slope protection project. In the design, the stability of the slope is first considered from the perspective of mechanics, and the ecological restoration is ignored, so that the ecological function of the natural slope Restoration is more difficult; at the same time, factors such as the coordination of the surrounding natural environment and phytoremediation are not considered in the ecological restoration of such natural slopes, which is not in harmony with the surrounding landscape, and is contrary to the current development trend of focusing on protecting the ecological environment.

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