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为探究岳屯边坡的运动规律,采用固定测斜仪分别测定了土孔和桩孔的位移情况,重点分析了土孔顶部和桩孔顶部位移数据,数据分析结果表明:岳屯边坡的运动方向总体向西,潜在滑动面深度为3~5m;抗滑桩与土体接触紧密,未发生剥离;悬臂桩的桩顶位移较大,不能只凭此作为判断边坡稳定性的依据;降雨入渗对边坡浅层土体影响较大,对深部土体影响有限。分析结果为岳屯边坡的稳定性判断和滑坡预警提供了一定的数据支持,为延安地区的黄土边坡稳定性研究提供了一定的理论依据。
In order to explore the movement rule of Yurtun slope, the displacements of soil hole and pile hole were determined by fixed inclinometer, and the displacement data of soil hole and top of pile hole were analyzed emphatically. The data analysis showed that: The direction of the movement is generally westward, with the potential sliding surface depth being 3 ~ 5m. The anti-slide pile is in close contact with the soil without peeling off. The displacement of the top of the cantilever pile is larger, which can not be solely used as the basis for judging the slope stability. Rainfall infiltration has a great influence on shallow soil of slope and has a limited impact on deep soil. The analysis results provide some data support for the stability assessment and landslide warning of Yuentun slope and provide some theoretical basis for the stability research of loess slope in Yan’an.