混凝土灌注桩钻芯法芯样抗压强度结果不确定度评定  

Evaluation of the Uncertainty of the Compressive Strength Results of Core Samples by Core Drilling Method for Concrete Cast-in-place Piles

作　　者：潘杨 PAN Yang(Shenzhen Gangjia Engineering Test&Inspection Co.,Ltd.)

机构地区：[1]深圳市港嘉工程检测有限公司

出　　处：《广东建材》2024年第6期75-77,共3页Guangdong Building Materials

摘　　要：本文结合工程实例分析了混凝土灌注桩钻芯法芯样抗压强度试验过程中引入的因素,建立了混凝土芯样抗压强度测量不确定的计算模型,计算出不同因素导致的不确定度分量,从而分别计算A类和B类测量不确定度、合成标准不确定度及扩展不确定度。根据不同因素导致的不确定度分量大小,分析出影响不确定度的关键因素,基于此提出提高抗压强度检测结果准确性的方法。In this thesis,the factors introduced in the compressive strength test of the core sample by the core drilling method of concrete cast-in-place pile were analyzed with engineering examples,and the calculation model of the measurement uncertainty of the compressive strength of the concrete core sample was established,and the uncertainty components caused by different factors were calculated,so as to calculate the measurement uncertainty of class A and class B,the combined standard uncertainty and the expanded uncertainty respectively.According to the uncertainty components caused by different factors,the key factors affecting the uncertainty were analyzed,and a method to improve the accuracy of compressive strength detection results was proposed.

关 键 词：基桩钻芯法 混凝土芯样 抗压强度 不确定度的计算方法 

分 类 号：TU473.1[建筑科学—结构工程]