DIN 18196
|
DIN 18196 |
|---|---|
| Area | Earthworks and foundations |
| title | Soil classification |
| Brief description: | Soil classification for civil engineering purposes |
| Latest edition | 2011-05 |
| ISO |
The DIN standard DIN 18196 regulates the classification system used in Germany for soils for structural purposes according to grain size and other properties. “Soils” does not only stand for soils in the sense of soil science , but also includes unconsolidated loose sediments near the surface that are not pedogenetically influenced . The current edition of DIN 18196 is from 2011; similar to DIN 4022 , it classifies the various floors in a hierarchical system.
classification
The standard meets the classification shown in the table below. The identifying features and examples additionally listed in the standard are not reproduced in this list.
| Main group | Grain size fraction ≤ 0.063 mm | Particle size proportion> 2.0 mm | Group (general) | Group (detailed) | Abbreviation group symbol |
|---|---|---|---|---|---|
| Coarse-grained soil | ≤ 5 | > 40 | gravel | Narrow gravel | GE |
| Broad gravel-sand mixtures | GW | ||||
| Intermittently graded gravel-sand mixtures | GI | ||||
| ≤ 40 | sand | Narrow tiered sands | SE | ||
| Wide-ranging sand-gravel mixtures | SW | ||||
| Intermittently graded sand-gravel mixtures | SI | ||||
| Mixed grain soil | 5 to 40 | > 40 | Gravel silt | 5 to 15 wt% ≤ 0.063 mm | GU |
| 15 to 40 wt% ≤ 0.063 mm | GU * | ||||
| Gravel clay | 5 to 15 wt% ≤ 0.063 mm | GT | |||
| 15 to 40 wt% ≤ 0.063 mm | GT * | ||||
| ≤ 40 | Sand silt | 5 to 15 wt% ≤ 0.063 mm | SU | ||
| 15 to 40 wt% ≤ 0.063 mm | SU * | ||||
| Sand clay | 5 to 15 wt% ≤ 0.063 mm | ST | |||
| 15 to 40 wt% ≤ 0.063 mm | ST * | ||||
| Fine-grained soil | > 40 | - | Silt | Slightly plastic silt (W L ≤ 35) | UL |
| Medium-plastic silt (35 <W L ≤ 50) | AROUND | ||||
| Pronounced plastic silts (W L > 50) | UA | ||||
| volume | Slightly plastic clays (W L ≤ 35) | TL | |||
| Medium plastic clays (35 <W L ≤ 50) | TM | ||||
| Pronounced plastic clays (W L > 50) | TA | ||||
| Organogenic soil | > 40 | - | Not combustible and smolderable | Organogenic silts (35 <W L ≤ 50) | OU |
| Organogenic clays (W L > 50) | OT | ||||
| ≤ 40 | Coarse to mixed-grain soils with humic additions | OH | |||
| Coarse to mixed-grain soils with chalky, pebbly formations | OK | ||||
| Organic soil | - | - | Flammable and smolderable | Not to moderately decomposed peat | HN |
| Decomposed peat | HZ | ||||
| Mudden ( digested sludge ) | F. | ||||
| Replenishment 1 | - | - | - | Replenishment from foreign matter | [] |
- 1 A backfill is a bed made up of natural soils and / or foreign substances under human influence.