Soil bioengineering

The engineering biology is a science of the elimination of landscape damage ( primarily erosion control) with biological agents. Above all plants are used, the cement by means of the roots of the ground. In hydraulic the hydraulic effect of above-ground parts of plants ( water turbulence ) is used to protect against erosion. Next, the effects of microorganisms on soil structure in biological engineering security constructions of meaning.

DIN 18918

The DIN 18918 ( Vegetation technology in landscaping - Biological methods - Stabilization by seeding, planting, stabilization with living and non-living materials and components, combined construction ) is based on the biological engineering work in Germany and provides notes on vegetation technical examination and evaluation of soils and for work for the production of vegetation areas. In assessing the environmental impact of the materials incorporated DIN 18918 refers to the requirements of the Federal Soil Protection and Contaminated Sites Ordinance ( BBodSchV ).

The DIN 18918 applies to all ground works (including construction and maintenance projects ) at

  • Plants and planting according to DIN 18916
  • Lawn and seeding according to DIN 18917
  • Biological methods according to DIN 18918
  • Development and maintenance care according to DIN 18919
  • Protection according to DIN 18920

It does not apply lawn areas for sports facilities in accordance with DIN 18035-4.

In § 6 of the DIN 18915 requirements for upper and lower floor, to substances to improve the soil, on fertilizer and seed as well as geotextiles and drainage layer construction materials are formulated.

Lebendbau

The practical application of engineering biological knowledge is referred to as Lebendbau or bioengineering (including Grünverbau ). Among the plants the narrow-leaved willow ( Salix different species) is of particular importance. Also alder species have a meaning in Lebendbau. The black alder ( Alnus glutinosa) is planted to stabilize stream banks, the green alder (A. viridis) for slope obstruction in the high mountains.

Busch situation and Buschbau

Brush layers are used in securing the gate embankments. The production takes place gradually over the bed of the embankment. In this case, layer by layer decisive carpenter types are installed ( for example, pastures ) and then showered. This beat out after a short time and, through the formation of root system for a lasting stabilization of the embankment. Also suitable for slopes with strong slip hazard.

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