第36卷第5期2023年5月传感技术学报CHINESEJOURNALOFSENSORSANDACTUATORSVol.36No.5May2023收稿日期:2022-11-25修改日期:2023-01-31ResearchonSettlementMonitoringMethodofUndergroundPipeGallerySegmentBasedonDistributedOpticalFiberSensorWANGLei∗,XUYuntao,MAOZhekai(HangzhouWaterDigitalTechnologyCo.,Ltd.,HangzhouZhejiang310013,China)Abstract:Thegeologicalconditionsalongtheundergroundpipegalleryarecomplex.Itiseasyforunevensettlementeventtooccurbe⁃causeofthelowbearingcapacityandlargedeformationafterbearingofthefoundation,resultinginthedamageofthewatersupplypipe⁃linelaidonit.Inordertoreducethepatrolworkandsavethecostofsettlementmeasurement,apipelinemonitoringsystembasedondistributedopticalfibersensingisstudied,thesensingopticalfiberislaidonthesegmenttomonitorthepipegalleryinrealtime.Basedonthestrainsettlementmechanismmodel,anexperimentisconductedonthemonitoringsystem.Theaverageabsoluteerrorofthestrain⁃settlementcurvecalculatedfromtheexperimentaldataisabout1.23mm.Theexperimentalresultsshowthatthesystemhasthecharacteristic...