摘要
采用超声波无损检测方法,对不同设计强度等级混凝土试块、模型桩及工程桩试验,通过两种不同的数学模型进行回归分析,得到混凝土强度与声速之间相互关系式,从而建立地区"声速—强度"专用公式。结合嫩多公路相应检测数据,进一步完善了测强曲线的研究。
How to evaluate the intensity of the concrete pile is a major concern in the design, construction and supervision. This paper establishes multi - relationship between the strength of concrete and the sound speed in concrete cube, model piles and constructive stakes, the density of which is different. Regression analysis was carried out on the basis of the experiment. It is aimed to establish formula about sound speed and strength. The sresult was examined in a highway construction, which shows that the data corresponds to the prediction result.
出处
《低温建筑技术》
2008年第3期96-97,共2页
Low Temperature Architecture Technology
基金
黑龙江省交通厅重点科技项目(HJZ-2003-39)
黑龙江大学青年基金项目[QL200631]
关键词
无损检测
灌注桩
超声
测强曲线
non-destructive testing
cast-in-place hie
ultrasonic
curve for strength check
