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本文在作者已研究的以直线方程式表示各高度铁路路堤、各土性指标时最危险滑动圆弧圆心位置的基础上,进一步研究了表示上述最危险滑动圆弧圆心位置的第二方程式,使用简便精确并绘有图解。一、进一步研究最危险滑动圆弧圆心位置的必要性试求以粘性土为填料的路堤最危险滑动圆弧圆心位置,通常是非常繁琐的。我曾提出了以直线方程式y=a+bx的形式表示各高度铁路路堤、各土性指标时最危险滑动圆弧圆心位置(路堤不同高度的a、b值见表1),但此方程式只能决定相应于某一坡高的路堤边坡最危险滑动圆弧的圆心位于某一条特定的直线上。如图1注有不同路堤高度H的许多斜直线,分别表示各高度路堤边坡最危险滑动圆弧圆心位置轨迹线。由于路堤填料的土性指标不同,确定最危险滑动圆弧圆心位置x、y坐标值时,仍需在此直线上寻找,仍不方便。为此,如果能
Based on the linear equation of the author, the author has studied the second equation of the most dangerous sliding arc center position on each railway embankment and each soil index, which is easy to use Precise and pictorial. I. The Necessity of Further Studying the Location of the Center of the Most Dangerous Slide Arcs It is usually very tedious to find the center of the most dangerous sliding arc of a embankment filled with clay. I have proposed to use the linear equation y = a + bx to represent the location of the center of the most dangerous sliding arc at each height of railway embankment and each of the soil indexes (see Table 1 for the values of a and b at different heights of the embankment) It can be determined that the center of the most dangerous sliding arc of a bank slope corresponding to a certain slope height is located on a specific straight line. As shown in Figure 1, there are many oblique lines with different embankment heights H, which respectively represent the trajectories of the most dangerous sliding arc center position of each embankment slope. Due to the different index of embankment filler, it is still inconvenient to determine the x, y coordinates of the most dangerous slip arc center position in this line. To this end, if you can