超声-回弹法检测农田水利薄壁构件强度研究

发布时间：2018-04-30 11:51

  本文选题：超声 + 回弹　； 参考：《中国农村水利水电》2017年04期

【摘要】：针对目前农田水利薄壁构件混凝土还没有实体强度检测方法和标准的问题,以薄壁构件干硬性混凝土标准立方体试件为研究对象,运用超声-回弹综合法获得江西省薄壁构件干硬性混凝土的声速值、回弹值,通过CECS 02:2005推荐的全国统一超声-回弹测强曲线和自拟超声-回弹测强曲线对其结果进行拟合,从结果可以看出,采用自拟超声-回弹测强曲线进行拟合的相对误差比全国统一超声-回弹测强曲线的相对误差小得多,而且相关系数较高,可以作为江西地区薄壁构件混凝土的超声-回弹测强曲线。
[Abstract]:In order to solve the problem that the concrete of thin-walled members of irrigation and water conservancy does not have solid strength testing methods and standards at present, the standard cube specimen of thin-walled concrete is taken as the research object. The sound velocity and springback of thin wall concrete in Jiangxi Province are obtained by using the method of ultrasonic and springback synthesis. The results are fitted by the national unified ultrasonic and springback strength measurement curve and the self-designed ultrasonic rebound strength measurement curve, which are recommended by CECS 02: 2005. It can be seen from the results that the relative error of fitting the self-made ultrasonic rebound intensity curve is much smaller and the correlation coefficient is higher than that of the unified ultrasonic rebound strength measurement curve in the whole country. It can be used as the ultrasonic-resilience curve of thin-walled member concrete in Jiangxi area.
【作者单位】： 江西省水利科学研究院;
【基金】：中央级公益性科研院所基本科研业务费专项项目(Y415014) 江西省水利厅科技项目(KT201414)
【分类号】：S277;TV544
，

本文编号：1824445