【作者】 邓建辉； 戴福初； 闵弘； 魏进兵； 卢慧； 谭国焕； 李焯芬；

【Author】 Deng JH;Dai FC;Min H;Wei JB;Loo H;Tham LG;Lee CF Key Laboratory of Rock and Soil Mechanics,Institute of Rock and Soil Mechanics,the Chinese Academy of Sciences,Wuhan 430071 China Department of Civil Engineering,the University of Hong Kong,Hong Kong China

【机构】 中国科学院武汉岩土力学研究所岩土力学重点实验室； 香港大学土木工程系；

【摘要】 为了监测水库蓄水过程中滑坡的变形与水动力学响应,在湖北秭归县泄滩滑坡体上建立了一套相对完善的滑坡综合监测系统,包括水库水位监测、降雨量监测、滑坡体水位与渗压监测以及变形监测等。本文简介了滑坡体的地形、地质条件和监测系统,重点分析了蓄水期监测成果。结果表明泄滩滑坡的渗透性良好,滑坡体的变形部位为库水淹没的前缘,因此水库蓄水是诱发滑坡体变形乃至失稳的主要因素。蓄水期水的逆向渗透对稳定滑坡的作用是有限的和短暂的。最后讨论了监测系统的优点与局限性。更多还原

【Abstract】 A comprehensive monitoring system was established to monitor the deformation andhydrodynamic response of Xietan landslide during filling the Three Gorges Reservoir which includes themonitoring of reservoir level, rainfall, piezometric pressure, water level and deformation etc. In this paper, theslide topography, geology and monitoring system are briefly introduced, and then the monitored data duringreservoir filling are analyzed. Results show that the main body of the slide is quite permeable and itssubmerged toe is right the place where deformation takes place, so reservoir filling is the main factor inducingthe slide deformation or instability. The stabilizing effect of the inverse seepage into the reservoir bank duringreservoir filling is temporary and limited. Finally advantage and limitation of the system are discussed.更多还原