滑坡地質災害遠程監(jiān)測預報系統(tǒng)及其工程應用
本文關鍵詞:滑坡地質災害遠程監(jiān)測預報系統(tǒng)及其工程應用,由筆耕文化傳播整理發(fā)布。
第28卷 第6期
巖石力學與工程學報 Vol.28 No.6
2009年6月 Chinese Journal of Rock Mechanics and Engineering June,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αW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。基于上述原理和試驗結果,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:P 642.2 文獻標識碼:A 文章編號:1000–6915(2009)06–1081–10
REAL-TIME REMOTE MONITORING AND FORECASTING SYSTEM FOR GEOLOGICAL DISASTERS OF LANDSLIDES AND ITS ENGINEERING
APPLICATION
HE Manchao
(State Key Laboratory for Geomechanics and Deep Underground Engineering,China University of Mining and Technology,
Beijing 100083,China)
Abstract:It is meaningful for researching on monitoring and forecasting technology of slope stability in open pit mine to prevent landslide geological disasters. Based on the mechanical principle of interaction among landslide body,landslide bed and monitoring anchor cable of slope,the mechanical principle of relative movement between landslide body and landslide bed is proposed;and the multi-factor monitoring is transformed into single landslide mechanical monitoring. The relationship between sliding force of slope and pretightening force is provided. According to the physical model experiment of landslide,the stress will change continually inside the landslide mass before the occurrence of landslide. When the sliding force is greater than the anti-sliding force,the deformation and landslide will take place,which means the change of stress will be ahead of displacement. Consequently,monitoring the alteration of stress in the sliding mass is better than that of the displacement. Based on above principle and experiment,the system of real-time remote monitoring and forecasting for geological disasters of landslide is developed,which can realize the real-time remote monitoring of perturbation. Four types of forecasting models corresponding to the system of remote monitoring are also presented. According to the field application to opencast mines slope,this new technology successfully implements monitoring and forecasting for stable condition of slopes.
Key words:slope engineering;slope stability;landslide forecasting;remote monitoring and forecasting system;sliding forces
收稿日期:2009–01–18;修回日期:2009–04–09
基金項目:國家重點基礎研究發(fā)展計劃(973)項目(2006CB202200);國家自然科學基金重大項目(50490270);長江學者和創(chuàng)新團隊發(fā)展計劃(IRT0656) 作者簡介:何滿潮(1956–),男,,博士,1981年畢業(yè)于長春地質學院工程地質專業(yè),現(xiàn)任教授、博士生導師,主要從事深部巖石力學理論及災害控制方面的教學與研究工作。E-mail:hemanchao@
本文關鍵詞:滑坡地質災害遠程監(jiān)測預報系統(tǒng)及其工程應用,由筆耕文化傳播整理發(fā)布。
本文編號:210832
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