摘要
针对钻芯法混凝土抗压强度批量检测时,推定区间不满足限值要求的推定值问题,基于混凝土抗压强度的正态分布特性,从错判概率和漏判概率的角度重点分析最小值大于设计值时,最小值作为推定值的适宜性问题。结论为当最小值小于推定区间下限或在区间内时可以作为推定值;当最小值大于推定区间上限时不宜作为推定值。该结论对钻芯法混凝土批量检测有较好的指导作用。
Aiming at the problem ofinterval estimationdoesn＇t satisfy the limitinferred value when used drilling core method to make concrete compressive strength batch detection, based on the normal distribution of concrete compressive strength, this paper focused on when the minimum value was greater than the design value, whether if the minimum value be the presumed value was suitability from the perspective of error rate and misdeteetion rate, the conclusion was that the minimum could be the constructive value when it was less than the lower bound or in the interval： and when it was greater than the upper boundit should not be used as inferred value. The conclusion has a good guiding function for batch inspection of core drilling method.
出处
《工程质量》
2018年第2期11-14,共4页
Construction Quality
关键词
混凝土抗压强度
推定区间
推定值
错判概率
漏判概率
最小值
compressive strength of concrete： reference interval： reference value
probability ofcommission
probability of omission
minimum value
