桥梁嵌岩桩桩底基岩岩性变软时的终孔分析

结合某大桥人工挖孔桩施工中实际地质情况与设计不相符的工程实例，通过对比计算，确定出嵌入岩层的互层深度，并以此为依据进一步确定基桩终孔标高，以期控制桩基终孔质量，保证桥梁结构安全。

On analysis of final hole soft soil of pile foundation of embedded rock pile of bridges

By combining with the project case of the irrelevance of the factual geological situation and design in the artificial excavated pile of some bridge, the paper identifies the interbedded depth of embedded rock layer according to the comparison and calculation, and ensures the height of the final hole of the foundation pile based on the depth, so as to control the quality of the final hole of the foundation pit, and ensure the safety of the bridge structure.