三角高程测量在地震小区划中的应用
APPL ICATION OF TRIGONOMETRIC LEVEL ING IN SEISMIC MICROZONATION
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摘要: 通过设计、实测、分析处理寿光市地震小区划项目中的三角高程测量,利用2"级全站仪,采用正倒镜的方法,实测得出的每千米高差全中误差为13 mm,达到了五等水准测量的精度,完全可以满足小区划项目中的高程要求。同时可以根据不同项目要求,设计不同的测量方案,在满足精度要求的前提下,有利于提高工作效率,加快工作进度。Abstract: On basis of analysis on trigonometric leveling in seismic microzonation of Shouguang, this paper propose a method of replacing the 5 grade leveling by triangulated height surveying of 2"total station, the accuracy reaches the 5 grade leveling and can achieve the requirements.Using this method, designing different leveling according to different project requirements can improve work efficiency, speed up the work progress.