提高建筑物沉降观测精度的方法  

METHOD FOR IMPROVING PRECISION OF BUILDING SUBSIDENCE OBSERVATION

作　　者：王振[1] 潘国荣[1] 

机构地区：[1]同济大学测量与国土信息工程系,上海市四平路1239号200092

出　　处：《测绘信息与工程》2007年第3期44-46,共3页Journal of Geomatics

摘　　要：提出了提高建筑物沉降观测精度的方法,分析了能有效地避免观测值的粗差i、角及i角变化的误差、前后视距不等和立尺不直带来的误差影响,提高了建筑物沉降观测精度。On the basis of traditional technique,a new method is introduced for improving the precision of building subsidence observation.With this method,the inaccuracy of observed value,＂angle i＂ and ＂variation of angle i＂ error,the error of different stadias between front and back,the effect of leveling staff offset plumb by illustrations can be avoid effectively,accordingly raising the precision of subsidence of construction observation is raised.

关 键 词：精密水准测量 建筑物沉降观测 变形监测 沉降测点 精度 

分 类 号：P258[天文地球—测绘科学与技术]