滑坡地質(zhì)災(zāi)害遠(yuǎn)程監(jiān)測預(yù)報(bào)系統(tǒng)及其工程應(yīng)用
本文關(guān)鍵詞:滑坡地質(zhì)災(zāi)害遠(yuǎn)程監(jiān)測預(yù)報(bào)系統(tǒng)及其工程應(yīng)用,由筆耕文化傳播整理發(fā)布。
第28卷 第6期
巖石力學(xué)與工程學(xué)報(bào) Vol.28 No.6
2009年6月 Chinese Journal of Rock Mechanics and Engineering June,2009
滑坡地質(zhì)災(zāi)害遠(yuǎn)程監(jiān)測預(yù)報(bào)系統(tǒng)及其工程應(yīng)用
何滿潮
(中國礦業(yè)大學(xué) 深部巖石力學(xué)與地下工程國家重點(diǎn)實(shí)驗(yàn)室,北京 100083)
摘要:露天礦邊坡穩(wěn)定性監(jiān)控預(yù)報(bào)技術(shù)研究,對滑坡地質(zhì)災(zāi)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(xué)原理為理論基礎(chǔ),提出滑體和滑床相對運(yùn)動狀態(tài)的力學(xué)監(jiān)測原理,把多因素監(jiān)測變?yōu)閱我换瑒恿αW(xué)量監(jiān)測,給出滑動力與監(jiān)控預(yù)緊力的關(guān)系。通過滑坡物理模型試驗(yàn)得出,在滑坡發(fā)生前,邊坡巖體內(nèi)應(yīng)力會連續(xù)發(fā)生變化,當(dāng)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(nèi)應(yīng)力的變化優(yōu)于對巖體位移的監(jiān)測;谏鲜鲈砗驮囼(yàn)結(jié)果,開發(fā)了滑坡地質(zhì)災(zāi)害遠(yuǎn)程監(jiān)測預(yù)報(bào)系統(tǒng),實(shí)現(xiàn)攝動力動態(tài)變化的遠(yuǎn)程實(shí)時(shí)監(jiān)測。提出4種監(jiān)測預(yù)警模型,通過對露天礦山邊坡等的現(xiàn)場實(shí)踐應(yīng)用,該監(jiān)控新技術(shù)成功地進(jìn)行邊坡穩(wěn)態(tài)實(shí)時(shí)監(jiān)控和預(yù)測預(yù)報(bào)。
關(guān)鍵詞:邊坡工程;邊坡穩(wěn)定性;滑坡預(yù)報(bào);遠(yuǎn)程監(jiān)測預(yù)報(bào)系統(tǒng);滑動力
中圖分類號:P 642.2 文獻(xiàn)標(biāo)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(xiàng)目:國家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(973)項(xiàng)目(2006CB202200);國家自然科學(xué)基金重大項(xiàng)目(50490270);長江學(xué)者和創(chuàng)新團(tuán)隊(duì)發(fā)展計(jì)劃(IRT0656) 作者簡介:何滿潮(1956–),男,,博士,1981年畢業(yè)于長春地質(zhì)學(xué)院工程地質(zhì)專業(yè),現(xiàn)任教授、博士生導(dǎo)師,主要從事深部巖石力學(xué)理論及災(zāi)害控制方面的教學(xué)與研究工作。E-mail:hemanchao@
本文關(guān)鍵詞:滑坡地質(zhì)災(zāi)害遠(yuǎn)程監(jiān)測預(yù)報(bào)系統(tǒng)及其工程應(yīng)用,由筆耕文化傳播整理發(fā)布。
本文編號:210832
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