Check all true statements for pavement structures on permafrost. Pavement thickn
ID: 1732804 • Letter: C
Question
Check all true statements for pavement structures on permafrost.
Pavement thickness is designed to keep thaw sensitive soils under the embankment always frozen.
Thermosyphons may assist in keeping the permafrost frozen.
At the embankment slope toes, it is hard if not impossible to keep the underlying soils frozen year around.
Clearing snow off from the embankment slopes helps stabilizing embankments on permafrost.
a.Pavement thickness is designed to keep thaw sensitive soils under the embankment always frozen.
b.Thermosyphons may assist in keeping the permafrost frozen.
c.At the embankment slope toes, it is hard if not impossible to keep the underlying soils frozen year around.
d.Clearing snow off from the embankment slopes helps stabilizing embankments on permafrost.
Explanation / Answer
Thermosyphons may assist in keeping the permafrost frozen.
Clearing snow off from the embankment slopes helps stabilizing embankments on permafrost.
b.Thermosyphons may assist in keeping the permafrost frozen.