临界比降的英文

angle of ultimate stability

critical slope angle

例句与用法

As a practical application , the safety situation of jiujiang dike under the 1998 pluvial condition of once a hundred years in yangtze river has been evaluated by the reliability method from the point view of the seepage stability in terms of probability analysis and two dimensional saturated seepage finite element analysis combining with the mechanism of seepage burst in jiujiang dike summarized in the thesis
通过渗流有限元和渗流可靠性分析论证了1998长江流域特大洪水灾害中九江市防护大堤发生的严重溃口破坏的渗流破坏机理。分析、比较得出结论：堤防下游坡脚的出逸比降接近和超过临界比降，在1998年长江百年一遇的洪水条件下九江大堤溃口断面的抗渗可靠性仅在55左右的非常低水平。