【作者】 金福喜； 卿笃干； 彭环云； 朱自强； 曾凡河； 张可能；

【Author】 JIN Fu-xi PENG Huan-yun ZhANG Ke-neng Institute Geotechnical Engineering,Hunan Univ,Changsha,Hunan 410082,China; QING Zhu-gan ZHU Zi-qiang ZENG Fan-he School of Info-Physics and Genmatics Engineering,Central South Univ,Changsha Hunan 410083,China

【机构】 中南大学地学与环境工程学院； 中南大学信息物理工程学院；

【摘要】 在滑坡实施抗滑桩支挡治理之后,考虑到红砂岩滑坡的普遍性和高速公路工期的紧迫性,为了掌握坡体稳定性发展趋势,推断滑面确切深度,评价支挡结构的安全性,对地表大地变形、支护结构顶部位移、岩土体深部位移和地下水位等项目进行了综合监测.通过监测发现局部地段桩侧地表裂缝有持续扩展迹象,地表、桩顶和钻孔深部在治理后仍有明显的位移累积。根据深部累计位移曲线特点推断存在较设计滑面更深的滑动面.结合工程地质条件、水文地质条件等因素,在分析了地表和深部位移变化趋势的基础上,阐述了滑坡治理后的动态稳定性,指出了后续监测工作的重点.更多还原

【Abstract】 In order to predict the development trend of stability of the landslide,and deduct the depth of slide surface and assess the safety of reinforcement structure as well,comprehensive monitoring,including ground displacement,deep displacement and groundwater level and so on has been done after the construction of anti-sliding piles.The paper analyzes developing trends and impact factors of displacements in ground and drill- hole monitoring.Results show that the landslide is still developing after being managed,and the displacement- depth curves open up a new slide surface deeper than that indicated in design stage.Based on the analysis of de- veloping trends of displacements in ground and drill-hole monitoring and engineering and hydrological geology, this paper illustrates the dynamic stability of the landslide managed,and presents the emphasis of later monitor- ing.更多还原