Study On Development Characteristics And Engineering Influence Of Hei Shui River Debris Flow On The Dam Site Of Guan Di Hydropower Station

Hei Shui River is located in the right bank of Ya Long River, Guan Di hydropower station, the dam upstream about500m, which is level1tributaries. Hei Shui river valley domain in recent years due to the rural road construction, highway slope excavation, formed part of the unstable and potential not stable source of loose materials, existing the probability of happen a greater likelihood of debris flow. If the outbreak of the mass flow, Waterspreading will be on3#ballastless field top, ballastless form a mud-rock flow, It’s hazardous to GuanDe hydropower station and itself.Through field investigation and test, find out the basin of HeiShuiHe incompact soil reserves, distribution, the stability evaluation. The well within the scope of the various structural feature of the form in, distribution, form, scale and the structure of the mechanical properties. The analysis and the form, hydrological, geological conditions of the rock weathering, and other aspects of the influence. May form of the debris flow velocity, flow, lose sand amount, fluid impact reckoned, on this basis, the frequency of HeiShuiHe debris flow analysis, and then to the GuanDe hydropower station dam disaster evaluation, puts forward the prevention measures are:1, on top of slag yard reserving flood discharge channel, and focusing on a section of the export control erosion design;2,1km upstream distance flood discharging tunnel, floor of trench’s elevation1540m parts add a grille LanDang dam, keep off stones and prevent the jam from drainage tunnel, with the grille dam design, calculation capacity of the dam, the design of the dam height, on a pier and wing grille dam of wall of slipping, resistive overturning stability calculation, to ensure the safety of the downstream GuanDe hydropower station dam.