基准轴线投测后的检测精度要求和归化计算

Testing precision demand of a projected datum line and its modified computation

结合高层建筑工程施工的生产实际,在施工条件限制的情况下,以15″或20″作为投测后三点是否在一直线上的限差要求来推证投测基准轴线的检测精度指标,以及为提高轴线投测精度进行归化改正的计算简捷公式,并通过实例进行了验证分析,解决了高层建筑施工中基准轴线投测的实际问题。

Considering the constraint of the high-rise building construction conditions, the testing procedure for precision of a projected datum line, which allowed tolerance of projected three points in a line is 15″to 20″, is deducted through an example of a high-rise building construction. Then, the simplified formulae for improveing project precision with modified computation are derived in detail and rerified by an example.