N.G.Bugai, A.I.Krivonog, S.Î.Dvornik
Investigations of strength of of vertical drain construction with using geotextiles

Applied hydromechanics, Vol. 12 (84) ¹ 2, (2010) p.20-30
The outcomes of experimental studies of hardness of a new construction of vertical drain with usage of the screen from a fibrous-porous polypropylene are reduced. It is offered to arrange drain in makeup of a curbing of deep foundation pits at building altitude buildings. The construction drain rests on reinforced-concrete piles of a curbing and consists from perforated PVC of a tube, cushioning layer of breakstone or shingle and jointless housing--screen from a filamentary polypropylene. The piece drain a diameter of 500 mm is studied, which one rests on reinforced-concrete piles a diameter of 800 mm to scale 1:1 at stress on drain up to 2 kg/sm2, that will match to maximal stress at depth of foundation pit up to 22 m. The concrete guidelines on a construction and allocation drain are obtained,the hardness will be provided with which one.
KEY WORDS:
drain, fibrous-porous polypropylene
TEXT LANGUAGE: Ukrainian