| With the rapid development of national economy in recent years, countries increased on construction of foundation engineering, more and more airport built in the mountains. However change of mountainous terrain ups and downs, and airport construction is faced with many problems, in order to meet the requirements of airport construction, especial area and clearance, many of the construction of the airport in the mountains can form high fill. High fill slope stability is facing a major among airport construction process safety issues. While a slope instability is not the cause of a single, is often a variety of factors coupling. This article mainly studies the airport in southwest high embankment slope stability influence factors, the entire southwest region has the similarity in geotechnical engineering, this article take panzhihua airport and dazhou airport pick out earthquake, rainfall, groundwater, and filling height factors to one by one, the characteristic of effect on slope stability was analyzed, and the paper the main work is as follows:1,Illustrates the role of the several key factors influencing the slope instability mode and mechanism of action, and provides reference for landslide of opinion.2, Panzhihua airport is studied respectively, Dazhou airport in seismic stability under the influence of single factor, the stability coefficient decrease with the increase of the level of earthquake acceleration a, had good linear relationship, and analyzes the main reasons for this phenomenon.3, Panzhihua airport is studied respectively, and Dazhou airport in the stability of the single factor under the influence of rainfall change rule, when the low rainfall, rainfall on the stability coefficient, when the rainfall reaches an extreme, steep fall in the stability coefficient, and through the numerical simulation software Geo Studio/seep module of this phenomenon are analyzed in detail.4, According to the specific circumstances, Panzhihua airport ground landslide of the trailing edge is studied the effects on the landslide groundwater infiltration,trailing edge water seepage stability of the landslide caused great influence, and through the numerical simulation software Geo Studio/seep module of this phenomenon are analyzed in detail.5, Respectively by Panzhihua airport, airport as an example of Dazhou filling height, the internal friction Angle of filler was studied, the influence of packing density of high fill slope, and summarizes the influence law.6, the guiding thought of the orthogonal experiment by multi-factor comprehensive analysis of high fill slope stability influence factors sensitivity strong as: level of earthquake acceleration, groundwater seepage, rain. |
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