基于集对分析组合理论的全风化边坡位移预测研究
摘要:风化花岗岩边坡位移受多种不确定因素影响,其预测是一个复杂的不确定性问题。以平益高速某风化花岗岩边坡为研究对象,先利用少量位移监测数据建立五种单项预测模型,然后基于集对关系准则定量分析各单项模型预测值与实测值间的集对关系,并通过联系数确定组合权重系数,最终建立了关于边坡位移的组合预测模型,并将预测数据与实测数据进行了对比验证。研究表明,利用集对分析组合理论建立的模型实现了预测信息的优化组合,相对单项模型,组合模型的预测相对误差最大不超过20%,绝对误差平方SSE、标准误差SE等指标偏小,可为边坡动态施工管理提供更加可靠的依据。拓宽了集对分析组合理论的应用范围,也为解决其他类似工程的位移预测问题提供了思路。
Abstract:The displacement of weathered granite slope is affected by many uncertain factors, resulting in complicated uncertain problem for its prediction. A weathered granite slope in Ping-Yi Expressway was taken as the study object. Based on a small number of monitoring data, five single prediction models were established. Then, the set pair relationship between each single model predicted value and the measured value was quantitatively analyzed based on the set pair relation criterion, and the combination weight coefficient was determined by the relation number.Finally,the combined prediction model of slope displacement was established, and the predicted value was compared with the measured value. The study shows that the optimal combination of prediction information is realized by using the set pair analysis and combination theory. Compared with the single model, the maximum relative error of the combined model is less than 20%, and the absolute error square SSE, standard error SSE as well as other indicators are small, which can provide a more reliable basis for dynamic slope construction management. The application scope of the set pair analysis and combination theory is expanded, and ideas for solving displacement prediction problems of other similar projects are provided.
中文标题:
基于集对分析组合理论的全风化边坡位移预测研究
Study on Displacement Prediction of Completely Weathered Slope Based on Set Pair Analysis and Combination Theory
作者:
刘文劼1,,黄勇军2,潘世强1,谭鹏2
Liu Wenjie1,,Huang Yongjun2,Pan Shiqiang1,Tan Peng2
作者简介:刘文劼,男,1987年生,汉族,湖南怀化人,博士,高级工程师,主要从事边坡监测及稳定性控制方面的研究,E-mail:liuwje@163.com
通讯地址:
1.湖南省交通科学研究院有限公司,湖南长沙 410007 2.湖南建工交通建设有限公司,湖南长沙 410029
1.HunanTransportationResearchInstituteCo.,Ltd.,Changsha410007,Hunan,China 2.HNCEGCommunicationsConstructionCo.,Ltd.,Changsha410029,Hunan,China
中图分类号:P 642; U 416.1+4
doi:10.3969/j.issn.1007-2993.2023.01.006
出版物:岩土工程技术
收稿日期:2021-08-31
刊出日期:2023-02-08
关键词:边坡,位移监测,集对分析,组合权重系数,相对误差
Key words:slope,displacement monitoring,set pair analysis,combined weight coefficient,relative errors
文档包含图片数量:图片(6)张
文档包含表格数量:表格(5)个
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基金项目:
基金项目:湖南省交通科技项目“高速公路边坡智能监测技术开发与风险管控云平台应用研究”(201907)
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