基于極限平衡法的機(jī)場高填方邊坡穩(wěn)定性分析研究
[Abstract]:With the rapid development of civil aviation, more and more airports are built up the mountain, which results in a large number of excavations and fill slopes. The geological conditions of these slopes are complex, the height is large, the forming time is short, and the stability of these slopes seriously restricts and affects the design, construction and operation of the airport. The application of different limit equilibrium methods to the stability of airport high fill slope is compared and analyzed. The general strip method is used to simplify Bishop's method and simple layout method. The stability of loess high fill slope of an airport in North China under normal conditions and three kinds of water contents under seismic action is analyzed by using Morgenstein-Price method. The results show that water has a great influence on slope stability, and it is very important for the selection of shear strength parameters under the condition of proper water content in the design process of the slope, and for the different calculation methods. The calculation results of the stability coefficient are different. The results of simplified Bishop method and Morgenstein-Price method are close, and the results of general slice method and brief method are close. The stability coefficient of the former two methods is about 7% higher than that of the latter.
【作者單位】: 中國民航機(jī)場建設(shè)集團(tuán)公司西北分公司;河北工業(yè)大學(xué)土木工程學(xué)院;長安大學(xué)公路學(xué)院;
【基金】:國家自然科學(xué)基金(41272285)
【分類號】:U416.14
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