The Research On Stability Of Jinlongshan Landslide After The Reservoir Storing Water

The bank landslide of reservoir is a most important engineering geological problems that come into being with the hydropower Station being constructed. Lots of studies have been done during past years. However, the theories and methods of research have seldom been progressed, as this or that kind of condition confines.The creep-slide-body of JinLongShan-section- II locates the left bank of a reservoir which is situated the downstream of the YaLongJiang river. The study of its stability not only is very important for this reservoir running but also can be referred to for others bank landslides of constructing and proposed hydropower Station.According to the method and system of study slide-slope: "from geological mechanism analysis and numerical simulation analysis and stability evaluation to forecast", this dissertation has researched the stability of the creep-slide-body which is situated in JinLongShan-section-II after the reservoir stored water.Firstly, Based on the investigation of spot and analysis of amounts of data of exploration and monitor about creep-slide-body of JinLongShan-section- II and lots of documents being referred, the dissertation summarizes the characteristics and mechanism that water induces the bank landslide. Hereby, this paper carries out geological analysis deeply and establishes three-dimension-Modflow model, three-dimension- o model, three-dimension-FLAC model to research characteristics of the penetration field, stress field and deformation field. The deformation law that was revealed by monitor data is reappeared. It also evaluates the stability of the creep-slide-body after the reservoir-stored water and the stability during the reservoir running. Yet, the stability of the creep-slide-body is being researched under the condition of discharging water rapidly.Based on this, the traditional model of time series analysis and gray system theory that is developed recently are established to forecast. And an exploring is carried out applying the function of step that the 3D-FLAC Software offered. This will provide material of dynamic and timely landslide forecast for engineering practice and scientific research.