岩滩扩建工程进水口边坡多点位移计监测资料分析

摘要

以岩滩水电站扩建工程进水口高边坡多点位移计为例,结合位移变化过程线,地质情况、仪器的布置情况,并将不同部位仪器的监测成果加以对比,综合分析其变形特征.分析结果表明:随着多点位移计测点埋设深度的增加,边坡变形在逐渐减小;1-1断面由于软弱夹层的影响,其变形特征是边坡上部的变形量比下部的变形量大,这对边坡稳定不利,建议对此处进行支护;边坡各部位变形量值的差异与边坡的地质条件和多点位移计的埋设布置形式相关.%Taking the multipoint displacement gauge in the high slope of the Yantan Hydropower Station for example, based on the displacement process line, the geological condition and the arrangement of the instrument, as well as the monitoring results of different parts, the deformation characteristics are analyzed synthetically.The results show that the deformation of the slope decreases gradually with the increase of the depth of the multipoint displacement measurement.Due to the impact of the weak sandwich, the deformation feature of section 1-1 is that the deformation of the upper part of the slope is larger than that of the lower part, which is unfavorable to the stability of the slope;it is recommended to support here;the difference in the deformation value of each section of the slope is related to the geological conditions of the slope and the layout of the multipoint displacement gauge.