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在日本 ,构造脆弱的地质带曾多次发生滑坡 ,滑坡危险性判断和崩塌、预测是依据土块移动量的测量数据判断的。近年来 ,采用GPS观测系统对土表崩塌和滑坡体移动量进行观测 ,这项技术与传统的伸缩计法相比 ,克服了易受气象条件限制、测点设置难等弊端 ,能长期提供观测点的情报。通过介绍GPS观测系统的工作原理和适用条件以及GPS确定位置的方法和分类 ,并通过列举GPS在测量滑坡体移动量中应用实例 ,说明了GPS是测量大规模滑坡体绝对移动量和移动方向的有效手段。
In Japan, landslides, landslide hazard judgments and collapses have repeatedly occurred on structurally weak geological belts. The prediction is based on the measured data of soil mass movement. In recent years, using GPS observation system to observe the collapse of the earth’s surface and the displacement of the landslide body, compared with the traditional telescopic method, this technology overcomes the disadvantages of being susceptible to the meteorological conditions, the setting of measuring points, and the like, Intelligence. By introducing the working principle and applicable conditions of GPS observing system and the method and classification of determining the position by GPS, and by enumerating the application examples of GPS in measuring the displacement of landslide, it shows that GPS measures the absolute displacement and the moving direction of large-scale landslide Effective means.