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激光由于它固有的特点,已日益广泛地应用在建筑工程上,现对其中利用它的有利特点而和建坝工作者特别有关的应用加以介绍. 方亚兰戈特顾问公司用国家物理研究所技术发展的激光设备成功地用在监控格兰特文上游坝的位移,在新建的卡斯列希尔坝也得到了类似的应用。它的基本原理是,由两个远距离点确定一个光轴,坝两固定端激光装置与中间任一标点三点构成一视准系统。第一点在坝端,装置激光源,第二点是成象圆中心,放在坝的标点处,第三点在坝另一端,安置激光成象接收屏幕.由光源射出的激光束通过标点的成象圆在后视接收屏幕上产生图象.
Due to its inherent characteristics, lasers have been increasingly used in construction projects and are described in terms of applications that are of particular interest to dam users by virtue of their advantageous features. Fang Yalan Gert consultants use the technical development of the National Institute of Physics Of the laser equipment was successfully used to monitor displacements in the upper reaches of Grantham and was similarly used in the new Cashel Hill Dam. Its basic principle is that an optical axis is determined by two long-distance points, and the two fixed-point laser devices in the dam and any three punctuation points in the middle form a sight system. The first point at the dam end, the installation of laser source, the second point is the imaging center, on the dam punctuation, the third point at the other end of the dam, the placement of the laser imaging receiving screen by the laser beam emitted by the source through the punctuation The imaging circle produces the image on the rear view receiving screen.