METHOD FOR FLEXIBLE INTERFACE STRUCTURE CONSTRUCTION Russian patent published in 2005 - IPC

FIELD: hydraulic engineering, particularly interface structures adapted to prevent river or channel bottom erosion.

SUBSTANCE: method involves erecting weir, downstream apron and upstream apron. First of all composite weir is assembled on prepared base. The weir is composed of previously prepared blocks which are placed one near another and joined by embedded members. The embedded members are pressed one to another and tied up with connection wire with the use of twisting key. Weir ridge is reinforced with metal channel bar. Then woven nets unwound from rolls are connected to weir block hinges from downstream weir side. The woven nets are connected one to another to form integral mat. High-strength concrete is laid on the mat to form reinforced concrete downstream apron. Vertical piers are installed from structure sides and woven nets are connected to hinges of pier blocks from upstream side thereof. The nets are unwound from reels along river bed and connected one to another to form integral mat. The mat is coated with high-strength concrete to form reinforced concrete upstream apron. Number of woven net to be laid from lower weir side may be more than one. Space between weir blocks may be filled with sealant to create deformable joins.

EFFECT: increased structural strength and operational reliability, reduced labor inputs.

3 cl, 10 dwg