航道护岸工程中基槽边坡稳定研究

航道护岸工程中经常发生基槽边坡滑坡失稳事故，从而造成经济和安全问题。因此，就滑坡发生机理进行研究对保障航道护岸工程顺利建设有重大意义。从极限平衡原理出发，分别运用Fellenius法和Bishop法验算了苏北某航道护岸工程开挖边坡的设计稳定性，并分析比较两种方法的差异，得出了在多层土的计算中有时会出现Fellenius法比Bishop法的安全系数略大的结论。结合工程实际中可能出现的渗流和超载等因素，计算得到边坡安全系数的变化规律和极限平衡状态时的临界负荷，从而提出了相应的预防渗流、控制超载等措施，可以为航道护岸建设提供参考。

On Slope Stability of Foundation Trench in Waterway Revetment Engineering

Slope slide often happens in waterway engineering,which arises both economic and safety problems.So,it is of great significance to analyze the mechanism of slope slide in waterway engineering.Firstly,we studied the slope theoretical stability in waterway engineering with methods of Fellenius and Bishop.Secondly,we analyzed the differences of the two methods and drew the conclusion that the safety coefficient in Fellenius might be higher than that in Bishop.Thirdly,combining with some contingency factors,we got the variation rate in safety coefficient and critical load in the state of slope limit equilibrium.At last,we brought forward some measures for loading control and seepage prevention,which could be used in waterway engineering.