三峡库区生基包滑坡监测及成果分析

Monitoring Results and Analysis of Shengjibao Landslide in the Three Gorges Reservoir Area

摘要:

生基包滑坡监测属于三峡库区奉节县三期地质灾害监测预警项目之一，该滑坡位于长江左岸，临近人口稠密的安坪乡集镇，地理位置重要。三峡水库175 m蓄水后，其变形破坏特征有何表现？对航道安全运营有无潜在威胁？是否会对滑坡体上的重要建筑及村民生产生活构成危害？针对这些问题，首先分析了滑坡的工程地质特征及主要的影响因素；其次，确立以4种监测手段为主、人工巡查为辅的监测方案；通过对大地变形GPS、深部位移、滑坡推力等几种监测方法的运用及对其成果进行分析研究，以实例说明其在滑坡监测中的应用；再次，结合宏观人工巡查进行对照分析，以充分说明大地变形、深部位移和滑坡推力监测在实际运用中的可行性；最后，根据监测结论提出对生基包滑坡防治的建议。

Abstract:

Landslide of Shengjibao in Fengjie County of the Three Gorges reservoir area was one of the monitoring and early-warning projects with important geographical position. Engineering geological characteristics and main influence factors were analyzed, and four monitoring methods were determined with the application of GPS in the crust deformation, deep displacement, landslide thrust monitoring. The feasibility of these monitoring methods was proved in operation, and at last, suggestions were put forward to control of Shengjibao landslide according to monitoring conclusion.