基础采用底部后压浆钻孔灌注桩体系。
The post-pressure grouting bored pile is used in the foundation de…
桩端后压浆可以提高桩的承载力，改善桩的承载性状。
The pile-end post-grouting technology can increase the bearing capacity of piles and improve the bearing performance of piles.
本文通过工程实例，介绍后压浆技术的施工工艺及效益。
According to practical projects, authors introduce the construction methods and benefits in this article.
北京财富中心桩基后压浆施工工程，由建研地基公司完成。
The pile foundation and post grouting for Beijing Fortune Center project was completed by CABR-FE Company.
采用人工挖孔桩桩端后压浆技术能使桩承载力提高50%。
The pile supporting capacity can be raised 50% after using man-power hole pile mud jacking technology.
最后确定桩底后压浆扩展半径的影响因素，并对其进行模拟分析。
The enlarged radius, stress of ending soil and area of compaction zone are also discussed.
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。
It is also verified that the bearing capacity of post grouting manpower mine pile can be estimated by empirical formula.
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。
Secondly, the author analyses the mechanism that the post-grouting increases the bearing capacity of the bore pile.
文章通过工程实践，详细介绍了钢筋混凝土灌注桩后压浆提高承载力的原理。
After construction practice, the author has introduced in detail the principle of raising the bearing power by pressing after grouting with armored concrete.
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。
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.
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。
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.
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。
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.
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.
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。
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.
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.
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 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 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 f...
在渗透性小的地层后压浆机理主要是压密注浆，在渗透性大的地层的后压浆机理主要是渗透注浆。
The working mechanism in less penetrability stratum appeared to be compression while in penetrability one appeared to be penetrating mainly.
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.
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;
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.
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.
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.
水泥浆的有效浆柱压力是在初凝前还是在初凝后降低至水柱压力，直接关系到能不能在固井候凝过程中压稳地层流体、实现压稳防窜候凝。
The time when the cement slurry's column pressure reduces to the water column pressure before or after initial set is directly related to whether or not formation fluids flow out during wait-on-time.
预应力管道真空辅助压浆工艺是提高后张预应力混凝土结构安全度和耐久性的有效措施。
The prestressing duct vacuum grouting workmanship is an effective measure for improving the safety and durability of the post-tensioning concrete structures.
后沟金矿炭浆厂经过试验研究，使用原有设备，不需进行任何改动，实现了常压无氰解吸。
Through experimental study, the CIP plant of Hougou Gold Mine brought the technology of normal pressure cyanide free desorption into being without any modification of original equipment.
真空压浆是后张预应力混凝土结构施工中的一项新技术，已经越来越广泛地应用于工程实践中。
Prestressed construction technology of the box girder concrete of the bridge and the vacuum grouting technology;
真空压浆是后张预应力混凝土结构施工中的一项新技术，已经越来越广泛地应用于工程实践中。
Prestressed construction technology of the box girder concrete of the bridge and the vacuum grouting technology;
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