ОПОЛЗНЕВАЯ УСТОЙЧИВОСТЬ ЛЕССОВЫХ СКЛОНОВ И ОТКОСОВ ПРИ СЕЙСМИЧЕСКИХ ВОЗДЕЙСТВИЯХ

Аннотация

Subject of research: slopes with various inclinations from loess soils characterized by different physical and mechanical measures. Purpose of work: to work out the method of seismic stable slope that would assess the dynamic stability of slopes and measures that provide seismic stability of slopes under dynamic (seismic) influence. Method of research: laboratory experimental researches on the models of loess slopes using modem measuring instruments and techniques. The results obtained and their novelty: the dynamics of stable and dcfonnational functions of the loess in slopes of different profile was studied depending on the content and condition of soils under the seismic influence of different intensively; the calculation method of determining the critical acceleration is proposed for inclined surface of soil thickness (criteria of soil structure's dynamic stability); the condition of diluted zone’s appearing out of steep slope and the size of dynamic loading was displayed; “the method of seismic stable slope” fro evaluation of slope’s dynamic stability is proposed herewith; the measures for providing the seismic stability of slopes by loading the surface of the slope were worked out. Practical value: consists of working out the criteria for evaluation the possibility of landslides dilution, method of slope’s seismic stability and measures which provide the seismic stability of dewy slopes. Degree of embed and economic effcctivity : the results of the research were used the evaluation of seismic stability of the erection built on natural slope. The summary of dissertation paper is used by MA students of TASI specializing in “Hydro technical erections” as scientific example. The economic affcctivity of seismic stable slope and ways of loading the slope is first of all aimed in providing the seismic stability of loess slope. Field of application: to provide seismic stability of dewy loess slopes in seismic regions.