What are the forms of berms? Give examples.

1, direct protection is a direct reinforcement of the riverbank slopes to resist the scouring of the water and washing. Commonly used cast stone, dry masonry schist, slurry masonry schist, gabions and tip bundles and other construction.

2, indirect protection applies to the riverbed is wider or protection of a larger length of the river section, can be built d dam, dams and dams, such as dams, will be picking the flow of water away from the riverbank.

The river section where the bridge is located, the concave bank of the river bank is subjected to water scouring year after year, which will make the river bank collapsed continuously. In order to protect the bridge and embankment safety, it is necessary to build protective structures on the concave bank. In addition, the construction of protective structures on the riverbanks is also necessary when the river flow changes due to the establishment of bridges, and when the riverbanks are washed away, jeopardizing farmland, villages and towns.

Expanded Information

In order to prevent the collapse of the slope, directly on the slope to build slope protection works to strengthen, which is more than cutting the slope to save labor, fast. Common slope protection works are: dry masonry schist and concrete block slope protection, slurry masonry schist and concrete slope protection, lattice box strip slope protection, spray slurry and concrete slope protection, anchoring method slope protection and so on.

Preventing rock weathering of soft rock and dense soil slopes without water influx, available slurry masonry and concrete slope protection. Concrete is used for slopes less than 1:1, and reinforced concrete is used for slopes 1:0.5~1:1. Among them, the slurry masonry schist slope protection can prevent rock weathering and water scouring, suitable for slopes that are more gentle.

Lattice frame strip slope protection is with prefabricated components assembled on site or poured directly on site concrete and reinforced concrete, repair into a format building, the grid can be protected by vegetation.

Dry masonry schist where there is gushing water. To prevent sliding, frame grid intersections should be fixed or y buried transverse frame strips.

In places where the bedrock fissures are small and no major collapse occurs, to prevent the bedrock from weathering and spalling, spray slurry or spray concrete slope protection. If you can get local materials, spraying with plastic mud is more economical, plastic mud can also do the hot layer of slurry. Pay attention not to have water and frost serious slope spray slurry or spray concrete.

Baidu Encyclopedia - Slope Protection