综合楼施工深基坑变形多点视觉监测

Multi Point Visual Monitoring of Deformation in DeepFoundation PitsDuring theConstructionof Comprehensive Buildings

PENG Fangyuan

（BUCG REAL ESTATE Co.，Ltd.，Beijing 100081，China）

Abstract：Amulti-pointvisualmonitoringmethodfordeformationofdepfoundationpitsincomprehensivebuildingconstructiois proposedwiththeaiofensuringconstructionsafety.Takingadepfoundationpitprojectofacomprehensivebuildingconstructionproject tobetestedasteresearchtarget，measuringpointsaresetuparoundiandimagesensorsaredeploedtocolctelevantimagsofthe topofthedeepfoundationpitsupprtpile，surroundingoads，pipelines，etc.Thethree-dimensionaldeepfoundationpitimageis reconstructed using the bounding box method.The rough K- meansclustering algorithm isused to calculate the range and center of the targetpoints.Thedefomationdisplacementvalueoftheeepfoundationpitisobtaindbycomparingthediferencebetweeteoriginal imageandthemonitoringimage'slandmarkpoints，Constructmonitoringdatasamplesusingthedisplacementchangesoflandmarkpoints intheobtaineddeepfoundationpitimages，andoutputdeformationpredictionresultsofdepfoundationpitsthroughtraininganRBF neuralnetwork.Theexperimentalresultsshowthatthismethodcanefectivelymonitorthedeformationofdeepfoundationpits；The maximumdeformationoftheroadselementaroundthedeepfoundationpitisabout15.12mm，whichhasnotreachedthealarmvalueof 40mm；The reinforcementstructure of the enclosurecan efectively constrain the deformation of deep foundation pits.

Keywords：softsoilarea；complexenvironmentalconditions；commercialcomplexbuilding；constructionworks；deepfoundationpit deformation；multi-point visual monitoring

0引言

随着当前城市的不断发展，针对地下空间方面的开发也不断深入，随之而来的复杂环境条件下深基坑施工问题也层出不穷[1-3]。（剩余6276字）