INVESTIGATION OF CHANNEL SCOURING DURING THE DAMMING OF THE AMUDARYA AT THE TAKHIATASH HYDROFACILITY

The hydraulic elements were studied and the scour depth at various stages of channel construction were measured in order to determine the design characteristics for damming the opening by the poineer method. Systematic surveys were made of the cross section, the water levels upstream and downstream from the constricted channels were measured, the width and depth of the opening and velocities and flows were measured, and float studies with depth measurements were made along the course of the buoy. In order to prevent channel scouring in the region of the opening at high flows it is necessary to stabilize it with a mattress. It is noted that in the selection of the stabilization mattress, it is important that in the longitudinal direction, the lower boundary of the mattress should just overlap the line of smallest transit-flow width, the position of which can be determined theoretically, while the upper boundary should correspond with the boundary where the free stream surface begins to drop near the opening. Comments are made on the flow through a channel section constricted by embankments placed by the pioneer method.

• Supplemental Notes:
  • Translated from Gidrotekhnicheskoe Stroitelstvo, No. 8, August 1975, pp 27-30.
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Karapetyan, M R
• Publication Date: 1975-8

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 749-754
• Serial:
  • Hydrotechnical Construction
  • Issue Number: 8
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Channels (Waterways); Dams; Hydraulics; Mattresses (Foundations); Rivers; Scour
• Old TRIS Terms: Mattresses
• Subject Areas: Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00145058
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 13 1977 12:00AM