AM扩底灌注桩桩身应变测试

Pile Strain Testing of AM Bulb Cast-in-place Piles

采用高精度滑动测微计测试AM扩底桩在各级荷载下的桩身应变,测试精度高,测试结果可靠。由应变测试结果推算出桩身端阻力及摩阻力,较好地为AM扩底桩在武汉天兴洲公铁两用长江大桥铁路引桥工程中的推广应用提供了设计依据。

The pile strain of AM bulb cast-in-place pile is tested by high precision sliding micrometer, which can have high precision and reliable testing results. The pile tip resistance and pile shaft resistance can be calculated by using the strain testing, which provides a good reference for the design of popularly application for the bridge approach project of Wuhan Tianxinzhou road Railway Bridge using AM bulb cast-in-place piles.