Embankment slope is made to 18.43 degree, ordinary slope protrudes from the edge but this one is made to stabilize load from the slope. how do we set the slope? here is a picture.
again not sure, the height H, is just part of the wall. The wall is a mass gravity wall, the mass of the wall needs to be sufficient to resist sliding and over turning
These are neither structural nor geotechnical design requirements .
Acc. to my past experience,
- The embankment slope shall be decided considering the stability of slope and surface . ( Typical permanent slope could be 1 V: 2 H.
- The height should be decided considering the soil build up with rain and drainage gutter / header channel.
I found the following picture at ( Clarence DUNHAM THE THEORY OF REINFORCED CONCRETE, 1944)
I hope my respond answers your questions and make sense.