Stone cage net refers to the box cage made of heavy hexagonal mesh, so it is called "stone cage net or stone cage net cage", Europe is also called grid cage, stone cage net cage. Stone cage cage is filled with stones in construction site, which forms a flexible, permeable and integral structure, such as retaining wall, River lining, weir and other support erosion prevention works.

Stone cage mesh is divided into several cells by a partition of 1 meter apart (twisted hexagonal metal mesh). In order to strengthen the structure of stone cage cage, all sides of the surface mesh are made of thicker steel wire. Controlling and guiding River and flood discharge dams and diversion dams to prevent water and soil erosion Bridges to protect the road protection of retaining walls in harbor engineering of coastal defense works with soil-consolidation structures.
The characteristics of the net are:
(1) economy. Just put the stone in a cage and seal it.
(2) simple construction and no special technology.
(3) it has strong ability to resist natural destruction, corrosion resistance and adverse weather effects.
(4) it can withstand large deformation but still does not collapse.
(5) the mud between cracks in the cages is conducive to plant production and can be integrated into the surrounding natural environment.
(6) good permeability to prevent damage caused by hydrostatic force.
(7) save transportation costs. It can be folded up for transportation and assembled on site.
The main uses of stone cage nets are:
(1) control and guide rivers and floods.
(2) flood discharge dams and diversion dams
(3) rockfall protection
(4) prevent water and soil erosion
(5) bridge protection
(6) soil consolidation structure
(7) coastal defense project
(8) port engineering
(9) retaining wall
(10) road protection
Stone cage mesh can also be made into triangular, trapezoidal, such mesh of stone cage stacked dam, slope in a plane.
Stone cage mesh is often used in water conservancy projects, stone cage mesh retaining wall is composed of 0.5-1.0 meters of stone cage cage stacked into a retaining wall. Stone cage cage retaining wall is mainly used for steep hillside, the role is to control debris flow, prevent landslides, as well as highway, railway subgrade protection and so on.
The use of cage is due to its unique ecological function. A little soil is sprinkled on the surface of the protective body for greening. Because the space between the stone and the stone is full of voids, the voids contain soil, which is conducive to the development of plant roots and create a good ecological environment. Even if the soil is not sprinkled, as time goes on, the gaps between the rocks will be silent soil, which will grow some herbs, forming a natural ecological environment.