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结合沁园春C区-Ⅱ区地下室工程强夯地基处理的工程实例,介绍采用强夯法处理大面积回填土的设计与施工方法。重点阐述采用强夯法处理地基的工作原理、结合现场实际地质情况合理确定有效加固深度、夯击遍数、夯击点布置;对强夯法的工艺参数、设备选型、强夯试验、施工效果等进行分析和研究,结果表明强夯处理方法效果显著,施工便捷、质量保证,在山坡建筑大面积回填的地基中可推广采用。
Combined with the engineering example of dynamic compaction foundation treatment in the basement of Zone-Ⅱ of Qinyuanchun-Ⅱ, the design and construction methods of large-area backfill soil with dynamic compaction are introduced. The paper mainly elaborates the working principle of using dynamic compaction method to treat the foundation, and determines the effective reinforcement depth, the number of ramming times and the layout of the tamper point according to the actual geological conditions in the field. The technical parameters, equipment selection, dynamic compaction test, The results show that the effect of dynamic compaction method is significant, construction is convenient and quality assurance can be popularized and adopted in the large-area backfill foundation of hillside buildings.