The pile foundation and post grouting for Beijing Fortune Center project was completed by CABR-FE Company.
北京财富中心桩基后压浆施工工程，由建研地基公司完成。
By analyzing the data of O-cell pile testing, new load transfer models before and after post grouting are proposed.
通过分析自平衡试桩数据，提出了注浆前后荷载传递函数模型。
It is also verified that the bearing capacity of post grouting manpower mine pile can be estimated by empirical formula.
同时也验证了后压浆人工挖孔桩的承载力可以通过经验公式进行估算。
The strengthening mechanism, construction technological proceedings and the main points to be noticed in construction with post grouting technique are given.
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 empirical formula and calculation parameters can be used in design of post grouting man power mine pile on the same geological type with reference value.
应用的经验公式及其计算参数可供同类型地质的后压浆人工挖孔桩的设计参考。
To improve the bearing capacity of piles under Sutong Yangtze River Bridge, different post grouting techniques were adopted to large diameter and super-long piles.
为提高苏通大桥桩基础的承载力，将不同后压浆工艺应用于苏通大桥大直径超长桩中。
Test results show that composite foundation scheme of the post grouting CFG pile satisfies requirements of design, which proves that this scheme has good economic benefit.
检测结果表明，该后压浆CFG桩复合地基满足设计要求，具有良好的经济效益。
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.
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。
Therefore, it is necessary to conduct the research and study of pile foundation post grouting techniques to reduce the pile foundation settlement and shorten the settlement stability time.
因此，进行桩基后注浆技术来减小桩基础沉降量以及缩短沉降稳定时间的研究非常必要。
Based on the application of post grouting technique in the rigid pile composite foundation, the authors investigated the mechanism of the capacity increase of short rigid pile by this technique.
结合后注浆技术在刚性桩复合地基工程中的应用，探讨后注浆技术提高刚性短桩承载力的作用机理。
The bored cast in place concrete piles embedded in rock were used in the main structure. The post grouting prestressed pipe piles adopted in the design were the first time applied in the karst area.
航站楼的主体结构采用嵌岩冲孔桩，设计中采用的后压浆预应力管桩是首次在岩溶地区应用。
The tests show that the longer the age of bored piles, the higher the opening pressure of pile end post grouting. However, the age of bored piles has little influence on the final grouting pressure.
注浆试验表明：随着成桩龄期的增加，开塞压力也相应增大，但成桩龄期对终注压力影响不大。
Combining with the Hangzhou Liqun Building project, authors introduce some aspects of the pile-bottom post-grouting technology such as features, construction methods and quality control.
结合杭州利群大厦工程实例，介绍了桩底后压浆技术的特点、施工工艺和质量控制。
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.
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。
The pile-end post-grouting technology can increase the bearing capacity of piles and improve the bearing performance of piles.
桩端后压浆可以提高桩的承载力，改善桩的承载性状。
Secondly, the author analyses the mechanism that the post-grouting increases the bearing capacity of the bore pile.
其次，从分析影响桩基承载力的因素出发，对后压浆的作用机理进行探讨。
The application of post-grouting technique for cast-in-situ pile could not only ensure the construction quality, but also raise the bearing capacity of each pile.
采用灌注桩后注浆技术，既可确保桩基施工质量，又能提高单桩承载力，极大地发挥桩基承载的潜力。
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.
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。
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.
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.
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。
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