【作者】 魏进兵； 邓建辉； 谭国焕； 李焯芬；

【Author】 WEI Jin-bing~1 DENG Jian-hui~1 Tham L.G.~2 Lee C.F.~2 (1.School of Water Resource and Hydropower,Sichuan Univ.,Chengdu 610065,China 2.Deptment of Civil Engineering,the Univemity of Hong Kong,Hong Kong,China)

【机构】 四川大学水利水电学院水力学与山区河流开发保护国家重点实验室； 香港大学土木工程系；

【摘要】 为监测蓄水时滑坡体内孔隙水压力的时空变化及其对滑坡复活的影响,在三峡库区泄滩滑坡建立了一套相对完善的滑坡综合监测系统。本文对滑坡监测及监测资料分析中存在的问题及所作的改进进行了阐述：分析了观测孔水位与水位观测孔结构及滑坡体水文地质结构之间的关系；对观测孔水位的测量方式进行了对比分析,认为采用人工测读与自动水位计结合的方式对观测孔水位进行监测是一种较好的水位监测方式；对渗压计的埋设方式及反应滞后现象进行了分析；对堆积层滑坡而言,利用钻孔岩芯精确定位滑动面位置存在困难,需结合观测孔水位及变形监测资料对滑坡体的地质结构进行修正。研究成果对相关滑坡的监测系统设置及监测资料的分析具有一定的借鉴作用。更多还原

【Abstract】 A comprehensive monitoring system was established to monitor the deformation and hydrodynamic re- sponse of Xietan landslide during filling the Three Gorges Reservoir.In this paper,some problems of the monitoring system and data analysing were dissertated:The connection of water level in observation borehole to the configura- tion of borehole and hydrogeological structure of landslide was discussed;Three different measuring methods of berehole water level were compared and optimized;The installing method of piezometer and hysteresis of piezometer data was analyzed;For accumulation landslide,it’s difficult to accurately estimate the elevation of slipband by drilling,so the geological structure of landslide should be modified through the analyzing of monitoring data such as borehole water level and deformation.The technique is significative to the monitoring and data analyzing of land- slide.更多还原