基于遗传规划的山体地表-埋地管道协同变形预测

    PREDICTION OF CO-DEFORMATION BETWEEN MOUNTAIN SURFACE AND BURIED PIPELINES BASED ON GENETIC PROGRAMMING

    • 摘要: 本文基于遗传规划构建了山体地表位移预测模型和埋地管道应变预测模型,以提高对地质灾害和管道安全的预测能力。针对山体地表位移预测,设计了分别针对X轴和Y轴的DXDY两类模型,用于预测地表水平和竖直方向的位移情况。针对埋地管道在受拉和受压状态下的应变特性,提出了L、U、R方向的不同应变模型,用于预测埋地管道的变形情况。通过对现场实际监测数据的采集和分析,确定了所构建模型的变量、参数及其影响因素,运用遗传规划将山体地表沉降量、埋地管道应变之间的相关性进行量化,通过遗传规划模型拟合出最优的关系式,选取适应度函数平均均方根误差(RMSE)和平均绝对百分比误差(MAPE)评估预测模型的准确性。结果表明,本文所建立的两类模型在预测山体地表位移和管道应变方面误差较小,模型表现出了较高的准确性和鲁棒性,可以较好地捕捉和处理变形过程中涉及到的非线性和多变性问题,在提取特征和规律方面表现良好,数据适应性较强,有助于提高地质灾害预警的可靠性和实用性。

       

      Abstract: This paper aimed to enhance forecasting capabilities for geological hazards and pipeline safety. Prediction models for surface displacement of mountainous terrain and strain of buried pipelines were developed using genetic programming. Separate models,DX and DY,were created to predict horizontal and vertical surface displacement along the X and Y axes,respectively. Strain models for buried pipelines under tension and compression were categorized into L,U,and R directions. Real monitoring data were analyzed to determine model variables,parameters,and influencing factors. Genetic programming quantified the correlation between surface settlement and pipeline strain,fitting the optimal relationship through these models. The accuracy of the prediction models was assessed using the average root mean square error (RMSE) and the average absolute percentage error (MAPE). The results indicate that the two types of models established in this study have small errors in predicting mountain surface displacement and pipeline strain. The models demonstrate high accuracy and robustness,effectively capturing and addressing the nonlinear and variable challenges inherent in the deformation process. They perform well in extracting features and patterns,exhibit strong data adaptability,and contribute to improving the reliability and practicality of geological disaster warning.

       

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