Study On The Main Engineering Geological Problems Of The Science And Technology Museum Of The Qinghai Tibet Plateau In Xining

Based on the project of Science and Technology Museum of Qinghai Tibetan Plateau,the characteristics of the formation,age,structure and uniformity of the special rock and soil in the each stratum were analyzed and determined by the methods of on-site and lab testing.,especially the distribution of the soft and hard strata and the main physical and mechanical indexes.And put forward the characteristic value of bearing capacity of foundation of each rock stratum;demonstrated the feasibility of using natural foundation form and construction condition of pile and its influence on environment;evaluated the possibility of pile forming and standard values of the standard value of the bearing capacity of the pile end,the limit end resistance of the pile and the limit side resistance were provided.The main geological problems of the science and Technology Museum in Xining were analyzed and we thought the wide distribution of collapsible loess was the main engineering geological problem in this area.On the basis of the analysis of the collapse on site,the analysis of multi scale microstructure of loess soil in Xining from the aspects of pore and mineral composition by the techniques of multi-scale microstructure and explored the relationship between the multi-scale microstructure of loess soil and its main engineering geological problems in Xining area.The analysis results of the engineering geological condition and the relationship between the micro structure and the wet sink of the loess have a reference value for the similar projects in Xining area.