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为了以有限的实验数据确定预应力锚杆布置的合理间距,结合山东省境内的104国道界河立交桥加筋土挡土墙的失稳加固工程实例,首先通过最小二乘支持向量机拟合优化对象与优化目标之间的复杂函数关系建立模型,然后采用现场实验数据样本进行模型训练,最后采用人工鱼群算法对模型进行优化,获得合理的布置间距,并通过加固效果监测验证了参数的合理性.结果表明,该法具有建模容易、收敛快和计算精度高等特点,说明该模型是合理可行的.
In order to determine the reasonable spacing of prestressed anchor with finite experimental data, combined with the instability reinforcement engineering example of reinforced earth retaining wall of 104 national highway crossing in Shandong Province, the optimal object is first fitted by least square support vector machine And optimize the target complex function between the establishment of the model, and then use the field experimental data samples for model training, and finally using artificial fish swarm algorithm to optimize the model to obtain a reasonable arrangement of spacing, and through the reinforcement effect monitoring to verify the rationality of the parameters The results show that the proposed method is easy to model, fast convergence and high computational accuracy, which shows the model is reasonable and feasible.