【摘 要】
：
北流河特大桥桥头岸坡地质条件复杂,构造发育。本文根据边坡的地质结构及边坡破坏特征,在此基础上,采用Sarma法指定折线型复杂滑面进行计算,定量计算岸坡的稳定性。研究结果
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北流河特大桥桥头岸坡地质条件复杂,构造发育。本文根据边坡的地质结构及边坡破坏特征,在此基础上,采用Sarma法指定折线型复杂滑面进行计算,定量计算岸坡的稳定性。研究结果表明,小里程岸坡区整体较稳定,局部有断层或滑动的区段在暴雨和库水位上升时易产生滑坡。大里程岸坡区为整体稳定性较好,但局部由于节理发育,风化作用和软化作用使岩石强度降低而产生掉块现象。
Beiliuhe Bridge Bridgehead slope complex geological conditions, tectonic development. Based on the geological structure of slope and the characteristics of slope failure, this paper uses Sarma method to design a complex line with a broken line for calculation, and calculates the stability of bank slope quantitatively. The results show that the slope area of small mileage is relatively stable as a whole, and faults or sliding sections in local areas are prone to landslide when the storm water and reservoir water level rise. The overall stability of the large-scale bank slope area is good, but because of the joint development, weathering and softening, the strength of the rock is reduced and the block-off phenomenon occurs.
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