The paper discusses the reinforcing mechanism, pile forming technology, design and detection of column-hammer thrusting-expanding cement-soil pile. Combining with the engineering example, it obtains some understanding upon column-hammer thrusting-expanding cement-soil pile processing backfilling soil foundation, with a view to provide reference for similar engineering treatment.%通过对柱锤冲扩夯实水泥土桩法加固机理、成桩工艺、设计及检测进行论述，结合工程实例，得出了柱锤冲扩夯实水泥土桩法处理回填土地基的一些粗浅认识，以供同类工程治理时参考。
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