结合实际工程，对嵌入卵石层钻孔灌注桩后压浆设计、施工中后压浆方法的选择、注浆量的确定、后压浆桩的承载力计算、后压浆在超长桩中的应用等进行了研究。
Based on actual projects, it carries out research on the choice of post-grouting method, grouting quantity and bearing capacity of bored pile, and the application of post-grouting in super-long pile.
桩端压浆技术克服了传统钻孔灌注桩的不足，使桩的承载力提高、沉降量减小。
The technology of base grouting overcomes the shortcomings of traditional bored piles, improving the bearing capacity of piles and decreasing settlement.
灌注桩后压浆技术解决了桩底沉淤和桩身泥皮影响灌注桩承载力的问题，使桩底、桩侧土得到了加固，从而大幅度提高了灌注桩的承载力，降低了桩的沉降量。
Problem on the bearing capacity of cast-in-place pile influenced by the deposit at pile end and the mud hanged on pile shaft can be solved by the technique with the post grouting.
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