岩土力学Issue(10):3033-3038,6.
基于磁测的边坡深部大变形监测方法
Slope internal large deformation monitoring using magnetic survey
摘要
Abstract
The existing slope internal deformation sensors are easily influenced by rainwater, mud-rock flows, rolling stones and other environmental factors. The arrangement of equipments is not convenient for the internal deformation monitoring; and the internal deformation monitoring can not be realized by the present technology during middle and late periods of sliding. Based on the magnetic localization theory, the smart rock is fabricated with magnetic label;and smart rock is embedded in the deep part of slope. So the slope internal large deformation monitoring system is established with the combination of smart rock and full tensor magnetic gradiometer. The localization by magnetic gradient tensor contraction is used to track the three dimensional motion of smart rock in order to realize the slope internal large deformation monitoring. With regard to the precision of full tensor magnetic gradiometer and influence of earth magnetic gradient, the effective monitoring distance can reach 35 meters by the analysis of magnetic strength and magnetic gradient. In the experiment, the deformation monitoring accuracy is 0.06 meter, which can be used as reference in the further study and practical engineering monitoring.关键词
边坡/深部大变形监测/智能石头/磁测Key words
slope/internal large deformation monitoring/smart rock/magnetic survey分类
建筑与水利引用本文复制引用
江胜华,周智,欧进萍..基于磁测的边坡深部大变形监测方法[J].岩土力学,2013,(10):3033-3038,6.基金项目
国家自然科学基金(No.51208078)。 ()