后压浆钻孔灌注桩可以大大改善桩体的受力性能，提高单桩承载力，是对传统工法的一项重大突破。
The posterior grouting bored pile can greatly improve the pile's bearing performance and increase the pile capacity through the improvement to traditional process.
介绍了后压浆钻孔灌注桩的施工工艺，结合工程实例，从试桩、成桩工艺、桩基检测等方面进行了论述，指出后压浆钻孔灌注桩工艺具有承载力高、工程造价低的特。
Combined with practical work the construction technology of post-grouting bored pile is introduced and discussed from test pile, construction procedure, pile foundation test and other aspects.
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.
钻孔灌注桩后压浆技术可提高桩的竖向承载力、减少桩的沉降并改善桩的工程性状。
The post-grouting technique for bored piles can increase the vertical bearing capacity of piles, decrease the subsidence and improve the engineering behaviors of piles.
介绍了影响泥浆护壁钻孔灌注桩单桩承载力的主要因素，后压浆技术的加固机理、施工工艺流程及施工要点。
The strengthening mechanism, construction technological proceedings and the main points to be noticed in construction with post grouting technique are given.
钻孔压浆桩与钻孔灌注桩和后压浆技术在施工工艺上不同，其桩土荷载传递性状亦有差异。
The construction process of drilling and fluid compress pile and that of drilling and grouting pile are different, so the load transfer behaviours between pile and soil are also varied.
有事为了克服以上缺点改用钻孔灌注桩和后压浆灌注桩，但灌注桩在砂土地层中也不易钻进，常出现卡钻、掉钻；
Sometimes, in order to overcome these shortcomings to use bored piles and post-grouting pile, but bored piles are difficult to drilling in sand stratum, drill pipe sticking and dropping often appears;
有事为了克服以上缺点改用钻孔灌注桩和后压浆灌注桩，但灌注桩在砂土地层中也不易钻进，常出现卡钻、掉钻；
Sometimes, in order to overcome these shortcomings to use bored piles and post-grouting pile, but bored piles are difficult to drilling in sand stratum, drill pipe sticking and dropping often appears;
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