桩端后注浆技术提高桩基承载力研究初探

对桩端后注浆技术作用机理进行了研究，分析了该技术在某工程灌注桩基础工程实例中的应用情况，工程实践表明注浆后单桩承载力实测值比计算值大20％左右，且该楼沉降量很小，说明桩端后注浆技术收到预期的注浆效果。

The research on the post-grouting of pile end construction technique in improving the loading capacity of pile foundation

The paper researches the mechanics for the post-grouting of pile end construction technique,analyzes the application of the technique in the example of some grouting construction.It is shown the measured value of the loading capacity of the single post-grouting pile is 20 percent higher than the calculated value and the settlement volume of the building is much lower, so it is illustrated that the post-grouting of pile end construction technique's expected effect is obtained.