摘要
文章从国内外滑坡灾害、滑坡灾害的危害及现有滑坡监测方法等方面，论述了滑坡灾害带来的危害性，从而验证了滑坡监测的重要性。但目前现行的滑坡监测手段各有不足之处。针对这种情况，提出了新的测量方法改进其不足之处。位相测量剖面术的测量原理是将LCD投影仪安装于滑坡体上，在滑坡体外稳定地带放置监测系统，CCD光束中心垂直于滑坡体位移方向，监测系统由望远镜头和CCD组成，CCD输出的视频信号进入计算机。通过软件对图像进行处理，绘制出滑坡整体的三维面貌，并计算出滑动的距离，从而有效的观测滑坡体的运动过程。
The present monitoring methods on landslide are not satisfactory due to their shortcomings. So we developed a new measuring method, called phase measuring profilometry （PMP）, expecting the method can solve these problems. The principle of the PMP is measuring the LCD beam emitting from LCD projector which is fixed on landslide. The measuring device is installed on a stable ground where is far from the landslide, The monitoring system is made up of telescope lens and CCD monitoring device. The video-signal, which is outputted by CCD, serves as the input of the computer. The image is processed using computer. The image shows the three-dimensional view of landslide, and displacement of landslide can be calculated from series images, thus the movement of landslide can be obtained.
出处
《中国地质灾害与防治学报》
CSCD
2005年第B12期15-18,共4页
The Chinese Journal of Geological Hazard and Control
