以某跨河桥梁段施工为例，分析了该工程的施工技术难点，从测量放样、埋设护筒、泥浆制备等方面，介绍了旋挖钻机与冲击钻机组合在嵌岩桩施工中的工艺流程，并探讨了施工中的注意事项，指出旋挖钻机与冲击钻机联合使用，缩短了工期，提高了工程效益。%Taking a across river bridge segment construction as an example,this paper analyzed the construction technical difficulties of the engi-neering,from the measuring lofting,embedding liners,slurry preparation and other aspects,introduced the process ofrotary drilling rig and per-cussion drill combination in rock-embedded pile construction,and discussed the matters needing attention in construction,pointed out that the combination use of rotary drilling rig and percussion drill,shortened the time limit for a project,improved the engineering benefit.
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