Optimal Design On Gongboxia Hydro-Power Station Construction During Flood Perind

Optimal Design on GongBoXia Hydro-power StationConstruction during Flood PeriodAuthor: Tutor:Abstract: Combined with the significant project-Gongboxia hydro-power station construction, emphasized on construction during flood period of power station construction period, the climate character of the upstream of Yellow river basin and the practice operation state of cascade reservoirs are analyzed, some problems in construction such as diversion scheme, cofferdam and optimal design of diversion during flood period are also studied, so as to provide technological support for Gongboxia hydro-power station construction period. The main results of the paper are as follows:(1) The flood analysis on Gongboxia hydro-power in construction in 2002. In accordance with the flood datum of the upstream of Yellow river basin and the dozens of years of the operation regulation of Longyangxia reservoir, the levels of Longyangxia reservoir of prospective two years are forecasted. Combined with the union dispatching of Long-li reservoirs, the flood constitutions of Gongboxia dam site, the flood scheme of Gongboxia in construction are presented.(2) The optimal design of cofferdam and diversion during flood period. To accelerate construction of diversion tunnel and reduce risk, study on years of operation regulations of Longyangxia and Lijiaxia reservoirs, by analyzing and calculating the flood in construction and during flood period, cross-section of diversion tunnel is optimized.(3) The design of Gongboxia hydro-power in 2002. After decided, combined with the character of engineering, construction condition, topography and conditions, decided location and mode of, and technological design of cut-flow.(4) The construction design. In terms of cut-flow design demand and construct feature, carry out precise construction and design.