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针对广西百隆高速公路建设期间发生的两处深路堑边坡坍滑,基于对已有勘探手段的分析比较,采取精确、实用的钻探加钻孔测斜手段进行了边坡变形监测。通过分析、比对两个主滑面上精心布设的五测斜孔的水平累积偏差及A、B方向水平累积位移随孔深的变化实测资料,推断了监测期内各滑(边)坡的发展变化性状以及仍处于活动中滑坡的滑动面(带)埋深,其合理性和正确性得到了现场调查的证实。研究结论为评价整治后的两边坡稳定性提供了依据。
In view of the slump of two deep-cutting slopes occurred during the construction of Guangxi’s Blum Expressway, slope deformation monitoring was carried out based on the analysis and comparison of the existing exploration methods with accurate and practical drilling and drilling diagometry. Through the analysis and comparison of the horizontal accumulated deviations of the five test inclined holes arranged on the two main slide surfaces and the measured data of the horizontal accumulated displacements of the A and B directions with the change of the hole depth, Developmental traits and the sliding surface (belt) depth of the landslide that is still in the process of being active, the rationality and correctness of the landslides have been confirmed by on-site investigations. The conclusion of the study provides the basis for evaluating the stability of slopes after rehabilitating.