METHOD TO COUPLE HYDRAULIC INSULATION GEOSYNTHETIC MATERIAL (HIGSM) IN ANTI-FILTRATION SCREEN WITH LONG-TERM INTERRUPTION IN CONSTRUCTION

摘要

FIELD: construction.;SUBSTANCE: invention relates to the field of hydraulic engineering, civil and industrial construction and may be used in creation of anti-filtration structures in bases, on channels and water reservoirs and is aimed at increased reliability of design of an anti-filtration screen during its construction in several stages. A soil base is prepared, beds 1 of a hydraulic insulation geosynthetic material HIGSM. A unit of HIGSM bed 1 coupling is laid along the border 2 of the first phase of construction with the second phase of construction, marked on the surface with a tape 9 and including a reserve of the HIGSM bed 1 folded by two vertical folds 3 with length of 2.5 B, where B - installed working width of adhesion of HIGSM beds 1. At the same time inside the upper vertical fold 3 they install an anti-friction pad 5, which remains in design of the anti-filtration screen after recovery of construction, from material, the friction coefficient of which by HIGSM is less than the coefficient of friction of HIGSM layers friction along each other. Then the produced reserve of the HIGSM bed 1 on top is closed with a protective anti-friction pad 6, removed from the structure of the anti-filtration screen after recovery of construction, from a material that has friction coefficient by HIGSM and by soil less than friction coefficient between HIGSM and soil. Further the HIGSM bed 1 and its coupling unit 7 is on top filled with a material of protective layer 8 and is left to the moment of construction recovery. Free exit of the HIGSM 1 bed from the coupling unit 7 is provided due to anti-friction properties of pads 5 and 6.;EFFECT: increased reliability of design of an anti-filtration screen during its construction in several stages.;1 dwg