云南保腾高速龙江特大桥边坡稳定性分析研究

摘要

Longjiang bridge stretches across the Longchuan River, and Longjiang bank slope is the main slope of the bridge. The YCW and EMU program are used for stability calculation combined with the engineering geological analogy method and CSRM discriminant method. Through comprehensive evaluation, it is concluded that: the slope is steady below the moderate weathered rock; in extreme cases like earthquake and storm rainfall, the slope eluvium and full~strongly weathered layer is easy to produce medium and thick layer landslide.%龙江特大桥横跨龙川江，龙江岸坡为大桥的主边坡。本文采用了YCW和EMU计算程序进行稳定性计算；并与工程地质类比法、CSRM判别法等定性分析方法结合，对大桥的边坡稳定性分析，进行综合评价，得出：边坡在弱风化以下岩层稳定；在地震、暴雨极端情况下，边坡残积层和全耀强风化层易产生中、厚层滑坡。