超声法检测灌注桩混凝土强度的应用研究  

Study on Ultrasonic Inspection of Concrete Strength of Cast-in-situ Piles in Karst Area

作　　者：袁铜森[1] 向洪[1] 杨春林[1] 胡柏学[1] 戴国亮[2] 

机构地区：[1]湖南省交通科学研究院,湖南长沙410015 [2]东南大学土木工程学院,江苏南京210096

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)

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.

关 键 词：灌注桩 率定试验 回归分析 专用曲线 

分 类 号：TU473.16[建筑科学—结构工程]