滑坡地质灾害远程监测预报系统及其工程应用

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1、第28卷第6期岩石力学与工程学报Vol.28No.62009年6月ChineseJournalofRockMechanicsandEngineeringJune，2009滑坡地质灾害远程监测预报系统及其工程应用何满潮(中国矿业大学深部岩石力学与地下工程国家重点实验室，北京100083)摘要：露天矿边坡稳定性监控预报技术研究，对滑坡地质灾害防控具有重要意义。以滑体、滑床和监控锚索相互作用力学原理为理论基础，提出滑体和滑床相对运动状态的力学监测原理，把多因素监测变为单一滑动力力学量监测，给出滑动力与监控预紧力的关系。通过滑坡物理模型试验得出，在滑坡发生前，边坡岩体

2、内应力会连续发生变化，当滑动力大于抗滑力后，边坡岩体会发生变形和滑动，且捕捉边坡岩体内应力的变化优于对岩体位移的监测。基于上述原理和试验结果，开发了滑坡地质灾害远程监测预报系统，实现摄动力动态变化的远程实时监测。提出4种监测预警模型，通过对露天矿山边坡等的现场实践应用，该监控新技术成功地进行边坡稳态实时监控和预测预报。关键词：边坡工程；边坡稳定性；滑坡预报；远程监测预报系统；滑动力中图分类号：P642.2文献标识码：A文章编号：1000–6915(2009)06–1081–10REAL-TIMEREMOTEMONITORINGANDFORECASTINGSYS

3、TEMFORGEOLOGICALDISASTERSOFLANDSLIDESANDITSENGINEERINGAPPLICATIONHEManchao(StateKeyLaboratoryforGeomechanicsandDeepUndergroundEngineering，ChinaUniversityofMiningandTechnology，Beijing100083，China)Abstract：Itismeaningfulforresearchingonmonitoringandforecastingtechnologyofslopestabilit

4、yinopenpitminetopreventlandslidegeologicaldisasters.Basedonthemechanicalprincipleofinteractionamonglandslidebody，landslidebedandmonitoringanchorcableofslope，themechanicalprincipleofrelativemovementbetweenlandslidebodyandlandslidebedisproposed；andthemulti-factormonitoringistransforme

5、dintosinglelandslidemechanicalmonitoring.Therelationshipbetweenslidingforceofslopeandpretighteningforceisprovided.Accordingtothephysicalmodelexperimentoflandslide，thestresswillchangecontinuallyinsidethelandslidemassbeforetheoccurrenceoflandslide.Whentheslidingforceisgreaterthanthean

6、ti-slidingforce，thedeformationandlandslidewilltakeplace，whichmeansthechangeofstresswillbeaheadofdisplacement.Consequently，monitoringthealterationofstressintheslidingmassisbetterthanthatofthedisplacement.Basedonaboveprincipleandexperiment，thesystemofreal-timeremotemonitoringandforeca

7、stingforgeologicaldisastersoflandslideisdeveloped，whichcanrealizethereal-timeremotemonitoringofperturbation.Fourtypesofforecastingmodelscorrespondingtothesystemofremotemonitoringarealsopresented.Accordingtothefieldapplicationtoopencastminesslope，thisnewtechnologysuccessfullyimplemen

8、tsmonitoringandfore