Stone cage check dam used for mountainous area erosion gully control

Abstract

A stone cage check dam used for mountainous area erosion gully control comprises cement piles. The stone cage check dam is characterized in that a cylindrical cage is formed by a wire net which is formed by galvanized iron wires in a staggered weaving mode, and rock blocks are placed into the cylindrical cage; a gully bottom base is excavated from the center line of a gully bottom downwards, multiple layers of stone cages which are overlapped are horizontally paved inside the base, a layer of stone cage is vertically paved on the upper portion of the base, and all the stone cages are connected through iron wires; a row of cement piles which are embedded into the gully bottom are respectively arranged on the two sides of the multiple layers of stone cages which are horizontally paved, a plurality of stone cage check dams are arranged along the erosion gully, and the distance between every two stone cage check dams satisfies the requirement that the bottom portion of the prior stone cage check dam is at the same height as the top portion of the next check dam. The stone cage check dam can realize mountainous area erosion gully control, is not limited by water flow speed, gully sand content, gully widths, gully erosion types and the like, can prevent gully head advancing, gully shore expanding and gully bend sapping and realize comprehensive control over erosion gullies, has the advantages of being strong in water permeability, high in stability, long in service life, low in cost and the like, and not only solves the problem of water and soil loss of the mountainous area erosion gullies, but also enables the gullies to deposit to form terraces, so that the area of available land is increased, and conditions are provided for agriculture and forestry production.

Description

technical field [0001] The invention relates to the field of water and soil conservation watershed management, in particular to a gabion valley square used for the management of erosion ditch in mountainous areas. Background technique [0002] Soil erosion and the resulting land degradation are one of the important reasons for the deterioration of the ecological environment. Gully erosion is a serious form of erosion in soil erosion, resulting in the reduction of cultivated land and soil fertility, which in turn leads to a decline in food production and threatens people's production safety. In recent years, measures aimed at controlling erosion gullies have been developed and applied, mainly engineering measures. Most of the existing engineering measures are earthen millwork, dry masonry stone millwork, mortar masonry stone millwork, and concrete millwork. However, earthworks have poor erosion resistance and are easily damaged. Dry masonry stoneworks are unstable in structur...

AI Technical Summary

Problems solved by technology

However, earthwork mills have poor erosion resistance and are easily damaged, dry masonry stone mills are unstable in structure, mortar masonry stone mills have poor water permeability, and concrete millwork is expensive, especially in rainy seasons, with low water permeability and less sand-retaining silt; The erosion of the lower gully is serious, and it is easy to cause the phenomenon of advancing ditch head, cutting down ditch bed and expanding ditch bank

Images