声波透射法测桩中准确获取声速的一种方法

One Method of Obtaining Accurate Sonic Velocity in Piles Cross-hole Sonic Logging

在声波透射法测桩中,声测管倾斜将严重影响检测结果,平测法不能直接判别声测管倾斜与否。寻找最短声程的方法能直接判断声测管的倾向,求出倾角,准确获得声速。

The pipe lean will bring negative effects to evaluate the quality of piles in cross-hole sonic logging. It cannot identify whether the pipe is lean or not when both the transmitting and receiving sensors keep the same level during the test. The pipe obliquity will be obtained through looking for the minimum distance of the pipes. So the sonic velocity crossing the concrete can be calculated.