农田水利工程薄壁构件的超声回弹法强度检测分析

Strength Detection and Analysis of Thin-wall Components in Irrigation and Water Conservancy Projects with Ultrasonic Springback Method

针对辽宁省薄壁构件混凝土试件的声速值、回弹值利用超声-回弹综合法检测,并对检测结果应用自拟和技术规程推荐的强曲线拟合。结果表明:较CECS 02推荐的测强曲线利用自拟超声-回弹测强曲线具有较高的相关系数,而且相对误差更小,自拟超声-回弹测强曲线更加适用于辽宁地区农田水利薄壁构件的强度检测。

In this paper,the ultrasonic-rebound method is used to measure the rebound value and sound velocity of thin-wall concrete specimens in Liaoning Province,and to fit the measured values through self-fitting and strong curve recommended by technical regulations.The results show that compared with the strength-measuring curve recommended by CECS 02,the self-fitting ultrasonic-rebound strength curve has a high correlation coefficient,and smaller of relative error.The self-designed ultrasonic-rebound strength measurement curve is more suitable for the strength measurement of the thin-wall components of irrigation and water conservancy in Liaoning Region.