海洋静力触探仪标准装置研究及不确定度评定  

Research on Measurement Standard of Offshore Static Cone Penetrometer and Uncertainty Evaluation

作　　者：钱飞 许素安[2] 高辰昊 闫冰男 马一开 晏天 QIAN Fei;XU Su'an;GAO Chenhao;YAN Bingnan;MA Yikai;YAN Tian(South China Sea Sea Area and Island Center Ministry of Natural Resources,South China Sea Standard Metrology and Information Center Ministry of Natural Resources,Guangzhou 510000,China;China Jiliang University,Hangzhou 310000,China)

机构地区：[1]自然资源部南海海域海岛中心,自然资源部南海标准计量与信息中心,广州510000 [2]中国计量大学,杭州310000

出　　处：《宇航计测技术》2024年第2期1-8,38,共9页Journal of Astronautic Metrology and Measurement

基　　金：海洋观监测船舶码头运行维护(102121192080130009002)。

摘　　要：为解决海洋静力触探仪量值溯源问题,结合设备测量过程中受温度影响的分析,根据量值溯源技术路线,设计构建了可在模拟海洋温度条件下开展海洋静力触探仪校准的标准装置。在对该标准装置的稳定性和开展试验的重复性考核的基础上,对校准试验结果进行了不确定度评定分析,分析表明海洋静力触探仪标准装置所复现的孔隙水压力标准值扩展不确定度为0.017 MPa(k=2),锥尖阻力标准值扩展不确定度为0.031~0.270 kN(k=2),侧壁摩阻力标准值扩展不确定度为0.031~0.036 kN(k=2),构建的标准装置性能指标满足海洋静力触探仪的量值溯源需求。In order to solve the metrological traceability of offshore static cone penetrometer,the influence of temperature on measurement is analyzed.On this basis,the measurement standard of offshore static cone penetrometer is designed.The uncertainty of measurement results is analyzed based on checking stability of the measurement standard and repeatability of experiment.The results show that the uncertainty of pore pressure is 0.017 MPa(k=2),the uncertainty of cone resistance is 0.031~0.270 kN(k=2),and the uncertainty of sleeve friction resistance is 0.031~0.036 kN(k=2).The measurement standard meets requirements for traceability of offshore static cone penetrometer.

关 键 词：海洋静力触探仪 锥尖阻力 侧壁摩阻力 不确定度 

分 类 号：TB93[一般工业技术—计量学]