摘要
通过对混凝土强度推定值的推导条件分析和异常值剔除的有效性分析,提出了抽检样本的正态性问题,并举例说明了频数分析法的应用。结果表明:抽检样本的正态性是混凝土强度能否推定和异常值能否剔除的前提条件,仅通过数据处理、数据剔除无法有效解决检测数据的非正态性问题,应从抽样方法、抽样数量、试验条件方面解决该问题。
Through the analysis of the derivation conditions of the estimated strength of concrete and the effectiveness of outlying observations,the normality of sample and frequency analysis was proposed with examples.The results indicate that the normality of sample is the precondition for the estimated strength of concrete and outlying observations.The non-normality problems of sample cannot be solved effectively with outlying observations and data processing,which should be solved with sampling method,sampling quantity,and test conditions.
作者
朵润民
陈仁进
梅莉莉
DUO Runmin;CHEN Renjin;MEI Lili(Guangdong Architecture Design and Research Institute Co.,Ltd.Guangzhou 510145,China;Guangdong Yuexin Construction Engineer Quality and Safety Co.,Ltd.Dongguan 523220,China;Henan Province Construction Engineering Quality Inspection and Testing Center Station Co.,Ltd.Zhengzhou 450053,China)
出处
《广东土木与建筑》
2022年第7期56-59,共4页
Guangdong Architecture Civil Engineering
关键词
混凝土抗压强度
钻芯法
强度推定值
正态分布
频数分布图
compressive strength of concrete
core drilling method
estimated strength of concrete
normal distribution
frequency distribution plot
