深基坑水平位移監(jiān)測數(shù)據(jù)分析及預(yù)測模型研究

Research on Monitoring Data Analysis and Prediction Model of Horizontal Displacement of Deep Foundation Pit

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ResearchonMonitoringDataAnalysis and PredictionModelof Horizontal Displacement of DeepFoundationPit

中圖分類號：TU433 文獻(xiàn)標(biāo)志碼：A 文章編號：1005-8249（2025）01-0065-05

DOI：10.19860/j.cnki.issn1005-8249.2025.01.013

LIU Hailong

(Nanchang Construction Engineering Comprehensive Supervision Center，Nanchang 33OO38，China) Abstract：Toaccuratelygraspthevariationlawofhorizontaldisplacementindeepfoundationpits，basedonthemeasured deformationdataofacertainenginering site，statistical methodsarefirstused toanalyeitsdeformationcharacteristics.Then， dynamic weight particle swarmoptimizationalgorithm，adaptive fuzzyneural network，andlimit learning mechanismarefurther usedtobuildadeformationpredictionmodeltostudythepredictionof horizontaldisplacementinfoundationpits.Theresults show that the horizontal displacement range of the engineering example foundation pit is 23.84～31.96 mm ， with an average value of $29.03\mathrm{\mm}$ ，and the maximum horizontal displacement is mainly located at 0，74H ；The relative error range of the deformation prediction results of the foundation pit is 2.02%～2.17% ，which has high prediction accuracy.The prediction model isreasonable，andthepredictionresultsshowthatthehorizontaldisplacementof the foundationpitwillcontinueto increase，buttherateof increase tends todecrease，andtheoveralldeformation tends tostabilize.Bypredicting the deformationofthefoundationpit，the horizontaldisplacementvariationlawofthefoundationpithasbeenmastered，providing technical support for its safe construction.

Key words：deep foundation pit；horizontal displacement；data analysis；deformation prediction；extreme learning machine

0 引言

在深基坑施工過程中，水平位移是基坑變形監(jiān)測過程中的必測項目，其控制效果可作為基坑支護(hù)結(jié)構(gòu)安全性評價的重要依據(jù)，因此，開展深基坑水平位移研究具有重要意義[1-2]。（剩余6577字）