I passed by these sand barriers hundreds of times when I used to teach at Sweida University. These barriers are used for two purposes. The first is during active combat to provide some kind of protection and the other is on the two sides of a road to provide protection for a checkpoint that blocks the road. They can be 1-3 meters high.

It is translated in international news websites and UN documents "Sand barriers". Find below a photo of a sand barrier: https://bit.ly/2X1iaIP


It's also used in UN documents: https://bit.ly/3CwfJOS
10. On 15 March, east of United Nations position 9-63, near Udaysah (Sector
East), the Israel Defense Forces removed pieces of concrete pipe from a track
leading to the Israeli technical fence, south of the Blue Line. Subsequently,
Lebanese municipal workers violated the Blue Line when creating a sand barrier in the same location