前方交会法监测位移对基线边精度要求的讨论  

DISCUSSION ABOUT THE BASELINE NETWORK PRECISION OF FORWARD INTERSECTION METHOD IN DEFORMATION MONITORING

作　　者：徐卫国[1] 张永[1] 肖鸾[2] 

机构地区：[1]中国地质大学工程学院,武汉430074 [2]株洲工学院土木工程系,株洲412008

出　　处：《工程地球物理学报》2005年第5期398-402,共5页Chinese Journal of Engineering Geophysics

摘　　要：用前方交会法进行位移监测是测量中常用的方法。监测点的位移量是两期观测结果之差。两期互差可以抵消相同的误差影响。结合这个特点,本文分析了前方交会法中布设基线网的精度要求。对于中、小型位移监测基线网的布设,提出了自己的见解。Forward intersection survey is the common method in displacement monitoring. The difference of displacement in the monitoring position comes from the observing results in the two periods. The differences can eliminate the same error. The paper analyzes the precise requirements of laying out the baseline network in forward intersection survey, and puts forward the author＇s suggestion for laying out baseline network in middle--sized or small-- sized monitoring survey.

关 键 词：前方交会 变形监测 精度 基线网 

分 类 号：P217[天文地球—测绘科学与技术]