高速公路高边坡稳定性的联合监测分析

United monitoring and analysis on the stability of high slopes for expressway

介绍了多点位移计和锚索测力计在安徽省某高速公路高边坡稳定性监测中的联合应用,实时监控坡体变形过程。采用比较法、作图法、特征值统计法和测值影响因素分析法等,以边坡变形和破坏现象为依据,结合现场施工和地质情况,将两种仪器的监测成果进行综合分析,探讨了各测点位移与空间、时间的关系,对比了位移与锚固力随时间的变化规律,分析了边坡变形发展的阶段及其主要影响因素,动态分析了该边坡的稳定性,提供了利用联合监测的方法全程跟踪和指导现场实现信息化施工的例证。

Through monitoring the process of slope deformation in real time, the united application of multi-spots extensometer and tendon ergometer to the stability monitoring of high slopes for certain expressway in Anhui Province is introduced. Some methods such as the comparison, the mapping, the eigenvalue statistics and the measuring the values of impact factors are adopted. According to the slope deformation and failure phenomenon and combining with the geology condition and construction situation, the united analysis for the two kinds of monitoring instruments is made and the relationship of every spot displacement with space and time is discussed. The changing rules of the displacement and anchoring force with time are contrasted, arid the main effect factors and the stage of slope deformation development are analyzed. Then the slope stability is dynamically analyzed, which provide the example for making use of the united monitoring to track and guide the informational construction.