滑坡地質災害遠程監(jiān)測預報系統(tǒng)及其工程應用

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1、第28卷第6期巖石力學與工程學報Vol.28No.62009年6月ChineseJournalofRockMechanicsandEngineeringJune，2009滑坡地質災害遠程監(jiān)測預報系統(tǒng)及其工程應用何滿潮(中國礦業(yè)大學深部巖石力學與地下工程國家重點實驗室，北京100083)摘要：露天礦邊坡穩(wěn)定性監(jiān)控預報技術研究，對滑坡地質災害防控具有重要意義。以滑體、滑床和監(jiān)控錨索相互作用力學原理為理論基礎，提出滑體和滑床相對運動狀態(tài)的力學監(jiān)測原理，把多因素監(jiān)測變?yōu)閱我换瑒恿αW量監(jiān)測，給出滑動力與監(jiān)控預緊力的關系。通過滑坡物理模型試驗得出，在滑坡發(fā)生前，邊坡巖體

2、內應力會連續(xù)發(fā)生變化，當滑動力大于抗滑力后，邊坡巖體會發(fā)生變形和滑動，且捕捉邊坡巖體內應力的變化優(yōu)于對巖體位移的監(jiān)測?；谏鲜鲈砗驮囼灲Y果，開發(fā)了滑坡地質災害遠程監(jiān)測預報系統(tǒng)，實現(xiàn)攝動力動態(tài)變化的遠程實時監(jiān)測。提出4種監(jiān)測預警模型，通過對露天礦山邊坡等的現(xiàn)場實踐應用，該監(jiān)控新技術成功地進行邊坡穩(wěn)態(tài)實時監(jiān)控和預測預報。關鍵詞：邊坡工程；邊坡穩(wěn)定性；滑坡預報；遠程監(jiān)測預報系統(tǒng)；滑動力中圖分類號：P642.2文獻標識碼：A文章編號：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