摘要
对岩溶地区多根灌注桩19个预留的混凝土试件进行率定试验,得到了对应的强度与波速值,然后对率定试验成果分别采用平方抛物线、幂函数、指数函数进行回归分析,得到了f—c专用曲线,结果显示采用这3种曲线均能较好的拟合混凝土强度与声速之间的函数关系。
calibration test has been done for 19 concrete specimens of a cast-in-situ pile in karst area and then the test result is fit by quadratic parabola,power function and exponential function to acquire a special f-c curve.It is demonstrated that these three types of curve can fit the functional relationship between concrete strength and wave speed closely.
出处
《公路工程》
2009年第5期10-12,共3页
Highway Engineering
基金
西部交通建设科技项目(200531878618)
关键词
灌注桩
率定试验
回归分析
专用曲线
cast-in-situ piles
calibration test
regression analysis
special curve
