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10.3 Types of soils according to ENV 1046<br />
Type<br />
of soil<br />
Group<br />
of soils<br />
according<br />
to<br />
ATV127<br />
G1<br />
Soil group<br />
Typical name Symbol Distinguishing feature Examples<br />
Gravel with a single size<br />
Gravels with a different size of<br />
the particles, gravel-sand<br />
Gravels with the same size of the<br />
particles, gravel-sand<br />
Sand with a single size<br />
(GE)<br />
[GU]<br />
[GW]<br />
(GI) [GP]<br />
(SE)<br />
[SU]<br />
Steep soil particle size line, with<br />
predominant particles with the<br />
same size<br />
Incessant soil particle size line, a<br />
few soil particle size groups<br />
Steep soil particle size line, one<br />
or more soil particle size groups<br />
are missing<br />
Steep soil particle size line, one<br />
soil particle size group dominates<br />
Crushed stone, river and<br />
bank gravel, moraine,<br />
cinder, volcanic ash<br />
Sand from dunes and<br />
bottom alluvium, river<br />
sand<br />
Covering<br />
YES<br />
G<br />
r<br />
a<br />
v<br />
e<br />
l<br />
Sands with a different size of the<br />
particles, sand-gravel<br />
Sands with the same size of the<br />
particles, sand-gravel<br />
[SW]<br />
(SI) [SP]<br />
Steep soil particle size line, a few<br />
soil particle size groups<br />
Steep soil particle size line, one<br />
or more soil particle size groups<br />
are missing<br />
Moraine sand, bank<br />
sand, shore sand<br />
YES<br />
G2<br />
и<br />
G3<br />
Alluvium gravels, gravel-alluvium-sand<br />
with the same size of<br />
the particles<br />
Clay gravels, gravel-sand-clay<br />
with the same size of the particles<br />
Alluvium sands, sand-alluvium<br />
with the same size of the particles<br />
Clay sands, sand-clay with the<br />
same size of the particles<br />
(GU)<br />
[GM]<br />
(GT)<br />
[GC]<br />
(SU)<br />
[SM]<br />
(ST)<br />
[SC]<br />
Wide/ soil particle size ine with<br />
interruptions with fine alluvium<br />
particles<br />
Wide/ soil particle size line with<br />
interruptions with fine alluvium<br />
particles<br />
Wide/ soil particle size line with<br />
interruptions with fine alluvium<br />
particles<br />
Wide/ soil particle size line with<br />
interruptions with fine alluvium<br />
particles<br />
Crashed gravel, beveled<br />
fragments, clay gravel<br />
Quick sand, sand loess<br />
Sand soil, alluvium clay,<br />
alluvium lime clay<br />
YES<br />
C<br />
ohesive<br />
O<br />
r<br />
g<br />
a<br />
n<br />
i<br />
c<br />
G4<br />
Nonorganic alluvium, fine sands,<br />
rock particles, alluvium or fine<br />
sands<br />
Nonorganic clay, plastic soil clay<br />
Soils with a mixed size of the<br />
particles and admixture of humus<br />
and talc<br />
Organic alluvium and organic<br />
alluvium clay<br />
Organic clay, clay with organic<br />
admixtures<br />
(UL)<br />
[ML]<br />
(TA)(TL)<br />
(TM)<br />
[CL]<br />
[OK]<br />
[OL](OU)<br />
[OH](OT)<br />
Low stability, short reaction, zero<br />
to weak plasticity<br />
Medium to high stability, slow<br />
reaction, low to medium plasticity<br />
Admixtures of plants / non-plant,<br />
rots, low weight, high porosity<br />
Medium stable, from slow to very<br />
fast reaction, low to medium<br />
plasticity<br />
High stability, zero reaction,<br />
medium to high plasticity<br />
Loess, clay<br />
Alluvium clay, clay<br />
Upper layers, hard sand<br />
Sea chalk, upper soil<br />
layer<br />
Mud, soil<br />
YES<br />
NO<br />
O<br />
r<br />
g<br />
a<br />
n<br />
i<br />
c<br />
Peat, others high organic soils<br />
Slime<br />
(HN)(H2)<br />
[Pt]<br />
[F]<br />
Non-homogenous peat, threadlike,<br />
colors from brown to black<br />
Slimes in the alluvium, often<br />
spreaded with sand / clay/talc,<br />
very soft<br />
Peat<br />
Slime<br />
NO<br />
Pipelife<br />
www.pipelife.com<br />
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