Deep deformations of the upper stream of a low-pressure reservoir

The article presents the results of analysis deep deformations Amu Darya riverbed in upper reaches low-pressure reservoir. combined transverse profiles different sections Takhiatash reservoir showed that coastal zones are most intensively silted up. At same time, core zone with highest flow rates is very weakly declared. height silting layer along length stream increases direction dam. area extends upstream for a 2-3 times longer than soundings section, which 17.5 km. To ensure normal operation hydraulic system, it recommended conditions should be created and stable approach to ensured by maneuvering shield holes. do this, necessary create erosion left-bank spillway increasing water through extreme discharge Flushing section river continue until optimal width leading channel reached, provides main front structure. It proved formation development sediment deposits on right bank between 8-10 leads change correction creates shoals regulator Kizketken channel, can complicate intake zone. Therefore, take measures prevent right-bank go from channel. As shown monitoring operating mode waterworks, district waterworks intensive processes formation, has strong influence operational dam, especially intakes flushing sediments, skip flood costs shields dam stability structures.