经常采用的措施是使用抗拔桩或抗拔锚杆。
研究了极限上拔承载力和抗拔桩的破坏机理。
The ultimate uplift bearing capacity, failure mechanism of piles were studied.
桩侧后注浆抗拔桩是一种新型的抗拔桩基础。
The side-grouting uplift pile is a newly developed pile foundations.
嵌岩扩底抗拔桩极限承载力主要受桩顶位移控制。
The ultimate uplift capacity of pile is mainly effected affected by enlarged base of pile.
结果表明抗拔桩的曲线形状与持力层岩石风化程度和桩的嵌岩深度有关。
It is shown that the shape of curves is related to the rock weathering of bearing strata and rock-socketed depth.
所得结论将为PHC管桩作为抗拔桩在工程中的应用提供有益的参考依据。
The conclusions are useful for the further using of PHC pile as resistant extraction pile in engineering.
国内外关于扩底抗拔桩的承载力研究较多，而对扩底抗拔桩的位移研究较少。
The domestic and foreign researchers paid more attention to the uplift capacity than to the deformation of the base-enlarged tension piles.
介绍了抗拔桩后注浆技术的基本原理、实施方法、效果分析及承载力计算模式。
The mechanism, method, effect and capacity mode of tensile pile with post grouting are introduced.
为了了解扩底抗拔桩的抗拔机理和抗浮特点，进行扩底抗拔桩和等截面抗拔桩的试桩试验。
In order to understand float resisting mechanism and its characteristic a test on the bored cast-in-place pile with enlarged bottom and up-lift resistance pile with equal section is carried out.
试验结果表明采用二次注浆工艺能显著提高微型桩抗拔极限承载力，有效地减小抗拔桩位移；
The test results indicate that the compaction of soil from twice pressure groutings can raise the ultimate uplift capacity of micropiles obviously and reduce the displacement effectively.
从本质上说，这是一个研究如何实现抗拔桩在地下车库设计中的合理性，经济性，安全性的问题。
In the essence, this is a problem that how to achieve rationality, economy, safety in the design of underground parking area.
坑底以下有效桩长相同时，开挖深度越大，开挖后桩周土体超固结比越大，抗拔桩极限承载力也越大。
When the length of the pile under the bottom of the pit is the same, the deeper the excavation is, the larger the ultimate uplift capacity of pile is.
提出了在地下车库内增设抗拔桩和剪力墙的加固方案，计算结果显示，增设剪力墙后桩基所受上拔力大幅度降低。
The reinforcement scheme which add tension piles and shear walls in the garage was put forward. The calculation results show that the uplift load of the pile greatly reduced after adding shear walls.
在考虑地下室基础承台刚域及抗拔桩布置的情况下，对基础梁的弯矩计算进行分析推导，得出了跨中弯矩的折减系数计算公式。
Moments on basement foundation beams considering rigid zone of pile caps and pulling resistance of piles are analyzed. Reduction factor of midspan moment is gained.
本文的研究课题就是以此为背景，提出了对地下车库一体化设计方法的研究，主要针对地下车库抗浮设计的核心问题：抗拔桩合理化设计。
As this background, the article put forward research of incorporate design method for underground garage, and the most important core problem is rational design of uplift pile.
基于可反映桩基荷载传递性状的“套叠”式桩周土变形模式和弹性理论，将等直径部分和扩径体部分桩周土分段建立位移方程，推导了桩身带有扩径体的非刚性和刚性DX抗拔桩的荷载-位移关系的解析解。
Based on the elastic theory and the overlapped-form strain mode of the soil, the paper deals with an analytical solution for the load-displacement relationship of non-rigid and rigid DX pullout pile.
根据最小势能原理，使用修正变分法来分析抗拔单桩和抗拔群桩的变形。
According to the principle of the minimum potential energy the deformation of single tension pile and pile groups was analyzed using a modified variational approach.
本文结合工程实践，通过现场试验分析研究提出锚杆桩抗拔极限荷载直接或间接的确定方法，并提出了合理的施工方案。
The direct or indirect method to determine ultimate uplift load of anchored rod pile is proposed herein based on field tests in association with engineering practice.
以新疆地区某高压输电线冻土桩基础受力分析为背景，在人工冻结条件下，进行了单桩的室内抗拔模型试验。
Aimed at the pile foundation in frozen soil of a high voltage transmission line project in Xinjiang Region, a laboratory tensile model test is carried out under artificial frozen condition.
如何利用现场抗拔静载试验中未达到破坏的工程试桩数据来确定其抗拔极限承载力是一个重要的工程问题。
It is very important for engineer to determine the uplift ultimate bearing capacity by using the data of non-destructive test of pile.
用大型有限元软件ABAQUS分析了挤扩支盘桩的抗拔特性，并与抗压特性进行了比较。
The extraction-resistant behaviors of squeezed branch piles are analyzed with large FEM software ABAQUS and compared to the compression-resistant behaviors.
结果表明，DX桩的抗拔承载力明显大于同等条件下的等截面桩，且DX桩的荷载-上拔位移关系呈缓变形；
The results show that the tension bearing capacity of DX pile is apparently higher than that of the pile with constant section, and the curve of load-displacement of DX pile is slowly varying.
利用直桩，斜桩的抗拔、抗压静载荷试验对微型桩的承载力进行了探讨。
Based on the uplift tests and the loading tests of vertical and raking piles the bearing capacity of mini piles is discussed.
福建大剧院桩基工程预应力抗拔钻孔灌注桩钢筋笼采用直螺纹连接新技术。
The new Technology of Straight Threaded Coupling have been adopted in the Prestressed Resist draw Bored cast-in-place Pile of the Pile Foundation of Fujian Theatre.
根据最小势能原理，使用修正变分法来分析抗拔单桩和抗拔群桩的变形。
According to the principle of the minimum potential energy, the deformation of single tension pile and pile groups was analyzed using a modified variational approach.
承受上拔荷载是杆塔基础的主要功能之一，而以往对软土地基上微型桩抗拔特性的研究较少。
Being subjected to pullout is one of main functions of transmission tower foundation, but there are few researches on the characteristics of micropiles pullout behavior in soft ground.
在现场试验基础上，研究沉管干振挤密抗拔防浮碎石桩在拉压循环荷载和拉拔循环荷载下单桩及其抗拔钢筋的性状。
Based on the in-situ tests, the behaviors of single diving dry-vibrated compacted and anti-pull stone column with steel bars are studied during the compression-uplift cyclic loading.
在现场试验基础上，研究沉管干振挤密抗拔防浮碎石桩在拉压循环荷载和拉拔循环荷载下单桩及其抗拔钢筋的性状。
Based on the in-situ tests, the behaviors of single diving dry-vibrated compacted and anti-pull stone column with steel bars are studied during the compression-uplift cyclic loading.
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