FIELD: construction engineering, namely, underwater bases of stone filling which can be efficiently built by using decreased number of elements of stone filling, and method for flattening with densification, meant for efficient construction of such base.;SUBSTANCE: underwater base of stone filling includes first zone meant for making support for comparatively large load from a caisson-like structure, and second zone, positioned near first zone and meant for making support for comparatively small load from blocks of demolition waste, etc. First zone is made in form of rigid body of central wall of stone filling, having densification degree, exceeding densification degree in second zone. First and second zones have upper surfaces, which are evened out relatively to one another. During construction elements of stone filling are dropped into water so that height of excessive bank in first zone exceeds that in second zone, and free fall of load is performed repeatedly onto first and second zones for densification of stone filling elements.;EFFECT: increased efficiency of construction.;2 cl, 6 dwg
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