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软土路基在外荷载作用下的沉降在时序上常表现复杂的非线性,本文采用抛物线模型预测软基的沉降趋势。针对简单遗传算法存在的问题,进行了大量改进,改进后的遗传算法能有效克服传统方法易陷入局部极小的缺陷,大大提高算法的搜索效率、精度和稳定性。实践表明该方法是一种有效可靠的沉降预测新方法。
The settlement of soft soil subgrade under external load often shows complex nonlinearity in time sequence. In this paper, the parabola model is used to predict the settlement tendency of soft ground. Aiming at the existing problems of simple genetic algorithm, a great deal of improvement has been made. The improved genetic algorithm can effectively overcome the defect that the traditional method is easy to fall into local minima and greatly improve the searching efficiency, accuracy and stability of the algorithm. Practice shows that the method is an effective and reliable new method of settlement prediction.