Since there is still no mature technology to check the length of reinforcing cage in piles, the present method will provide a reasonable method for checking the length of reinforcing cage in piles.

• 鉴于灌注桩中钢筋笼实际长度的检测至今没有成熟检测技术，因此，这种方法对灌注桩的质量控制及同类检测工作有一定的借鉴意义。