The first step in the optimization process is to divide the slip surface into a number of straight line segments. The slip su rface in essence becomes just like a Fully Specified slip surface. Next, the end po ints of the line segments are moved to probe the possibility of a lower safety f actor. The process starts with the point where the slip surface enters ground surface. This point is moved backward and forward randomly along the ground surface until the lowest safety factor is found. Next, adjustments are made to the next point along the slip surface until again the
lowest safety factor is found. This process is repeated for all the points along the slip surface. Next, the longest slip surface line segment is subdivided into two parts and a new point is inserted into the middle. This process is repeated over and over until changes in the computed safety factor are within a specified tolerance or until the process reaches the specified limits
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优化过程的第一步是将滑面分成一些直线段，本质上滑面变得像一个完全指定的滑面。下一步，移动直线段的终点以考察是否有更小安全系数。这个过程开始于滑面进入地面的点，这点沿地面前后随机地移动，直到找到最小的安全系数为止。接下来，对滑面上的相邻点进行调整，直到找到最小的安全系数为止，沿滑面的所有点重复这个过程。下一步，最长的滑面线段被分成两段，在其中间插入一个点。这个过程不断地重复直至计算安全系数的变化量在一个指定的容差内或这个过程达到一个指定的限度（比如最大优化次数）。
