论文部分内容阅读
观测滑坡深部变形是了解滑坡启动机理以及进行滑坡监测预警的重要内容。本文以三峡库区凉水井滑坡作为监测实例,收集了测斜仪监测方法和拉线式监测方法测量出的深部变形数据,分析了深部变形随时间的变化规律以及与地表变形的关系,对比了两种监测方法获得的数据,测斜式监测方法表现更加灵敏,但量程小,拉线式监测方法量程大,但灵敏度低。依据深部与地表协调变形对滑坡变形启动模式提出了新的分类,在此基础上,对两种监测方法的适用性进行了总结,并提出了合理建议。
Observation of deep deformation of landslides is an important part of understanding the mechanism of landslide initiation and landslide monitoring and early warning. In this paper, the Liangshuijing landslide in the Three Gorges Reservoir Area is taken as an example to monitor the deep deformation data measured by the inclinometer monitoring method and the cable monitoring method. The variation of the deep deformation with time and the relationship with the surface deformation are analyzed. Measured data obtained by the monitoring method, the method of measuring inclinometer monitoring performance more sensitive, but the range is small, pull-line monitoring method range is large, but the sensitivity is low. Based on the coordinated deformation between deep ground and surface, a new classification of landslide deformation initiation mode is proposed. Based on this, the applicability of the two monitoring methods is summarized and some reasonable suggestions are put forward.