What does subgrade slope protection include, and what knowledge does subgrade slope protection include?

The following is taken from the Code for Design of Railway Subgrade (TB10001-2016) in my hand. I hope I can help you.

The design of subgrade slope protection should be based on geotechnical properties, geological structure, hydrogeological conditions, climate environment, slope direction, slope ratio and height. And take measures of plant protection or the combination of plant protection and engineering protection. Slope protection forms include:

1.

plant protection

2.

Skeleton slope protection

3.

Solid slope protection (wall)

4.

Slope protection of tunnel and window (wall)

5.

Anchor frame beam slope protection

6.

shotcrete

(mortar) slope protection

7.

Stone cage slope protection

8.

Protective screening

9.

Geosynthetics protection

(basically. As for what knowledge each protection type contains, it is too much. If I type here, the workload is too heavy, so I won't start one by one. You can view information about each form of protection on the Internet. )