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介绍了钻孔后压浆灌注桩施工工艺和加固机理，并根据原位测试结果分析了钻孔后压浆灌注桩荷载传递规律和大面积堆载试验对承载力的影响。
The construction process and reinforcement mechanism of post-drilling grouting piles are introduced. Based on the in-situ test results, the load transfer law of grouting piles after drilling and the influence of large-area loading test on bearing capacity are analyzed.