超声波法在基桩反射波检测中的应用

Application of the supersonic method in stake inspection by reflective waves

分析基桩反射波法检测中对桩长的校核和桩身砼强度等级的确定存在的问题.提出用超声波法测量桩头的速度来改进桩身波速的经验值.桩身砼的波速和砼的强度之间具有一定的相关性,而利用超声波法测定波速后可以得到砼的强度.工程实测表明,该方法可有效地应用于桩身长度的测定和桩身砼强度的确定.

Some defects in the measurement of length of a stake and in acquirement of strength grade of the concrete in a stake are discussed. It is brought forward that the accuracy of wave velocity of a stake can be improved by measuring the supersonic velocity of the head of it. According to the result of a practical measurement, this method can be effectively applied to practical engineering.