桩外跨孔超声波法探测摩擦桩桩长和嵌岩桩嵌岩状况

Use Pile Outside Cross-hole Ultrasonic Method to Detect Length of Friction Pile and Rock-socketed Condition of Rock-socketed Piles

介绍在桥梁下部结构已完成施工的情况下,如何利用桩外跨孔超声波法探测摩擦桩桩长和确定嵌岩桩的入岩深度、沉渣厚度及持力层性状等的方法技术。

Introduce the condition after the lower part of the srucure of a bridge has been completed,how to use pile outside cross-hole ultrasonic method to detect length of friction pile,and the method to detect the status of rock-socketed piles,including depth to rock stares,sediment thickness,bearing stratum.