复杂片岩地区的桩基工程常出现桩基承载力不足的问题。
The shortage of bearing capacity is often encountered in pile foundation construction in complex schist area.
低应变动态无损检测法是检测桩基承载力和桩身质量的一项新技术。
Low strain dynamic nondestructive testing is a new technology to test bearing capacity and quality of pile.
本文结合实践对低应变法对桩基承载力的应力状态进行了探讨分析。
Based on the practice of low strain of pile bearing capacity of stress analysis is discussed.
为自平衡测桩技术在以后的桩基承载力测试中的推广应用提供了资料。
The paper give base datum to the widely application of the new pile load testing method.
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.
桩基础承载力随着时间推移呈逐渐增大的趋势，这就是桩基承载力的时间效应。
The time effect of the bearing load of column foundation is that the bearing load increases with the lapse of time.
自平衡法是一种新型的桩基承载力测试方法，与传统静载荷试验方法相比具有许多优点。
As a new method to test pile's bearing capacity, self-balancing method has many advantages over the traditional ones for static loading test.
湿陷性黄土地区地基土浸水湿陷后，桩侧表面可能产生负摩阻力，将导致桩基承载力降低。
The negative skin friction resistance caused by collapsible deformation after water soaking into collapsible loess will reduce the vertical bearing capacity of piles.
研究了复合桩基承载力可靠性分析的方法，这对复合桩基的可靠性设计将起到积极的推动作用。
The probability analysis method of the bearing capacity of composite pile foundation is investigated, which can push the developing of the reliability method of composite pile foundation.
实际测试表明，该系统操作简便、实时性强、精度高，可广泛应用于桩基承载力的静载试验中。
It's validated by rigorous testing that the system is high accuracy, easy for operation, real-time and low power. Therefore, the system can be widely utilized for current static load test projects.
介绍了处于黄河中下游冲积平原的郑州黄河公铁两用桥深长桩基承载力测试的传统静载荷试桩法。
Conventional static loading method for long piles adopted in Zhengzhou Road-rail Bridge on the alluvial plain in the middle and lower reaches of the Huanghe River was introduced.
自平衡法作为一种新型的桩基承载力测试方法，具有测试荷载大、测试简便、结果可靠等多方面的突出优点。
As a new method for large pile bearing capacity test, the self-balancing method has several outstanding merits, such as great testing load capacity, simplicity and its creditability.
介绍了自平衡法测试桩基承载力在南京新三汊河大桥中的应用，探讨了这种方法用于水中桥梁工程桩基础的优势。
This paper introduces the application of self-balance method to determine the bearing capacity of pile in Nanjing Sancha River Bridge.
侧摩阻力值还处于线性增长阶段，且数值十分可观，据此有望解决贵州省目前桩基承载力侧摩阻力不能充分利用的问题。
The shaft friction value is still in the linear growth phase. The self-balanced method may resolve the problem that the shaft friction is not ful used in Guizhou Province.
对该新型桩基开展了一系列现场试验和检测，以其结果验证了该桩型的适用性，桩基承载力和复合地基变形满足了设计要求；
A series of field detection and in-situ test have been performed; the results show that the bearing capacity satisfies the design capacity and the use of this style pile is successful.
在桩基工程中，单桩竖向承载力的确定关系到设计是否安全和经济的重要问题。
Vertical bearing capacity of single pile relate to the important question whether the design is safe and economical or not in the pile foundation construction.
随着高层及超高层建筑的涌现，桩基静载试验作为确定单桩极限承载力最可靠的方法已被广泛采用。
With more and more high-rise constructions have been builded, the static load test of pile is adopted as the foremost way to identify vertical ultimate bearing capacity of single pile.
但目前，在我国公路桥梁规范中，对于桩基础仅给出轴向承载力的安全系数。
But nowadays, in the code of highway bridge only have safety coefficient for axial bearing capacity of pile foundation.
从桩基规范中有关嵌岩桩竖向极限承载力的计算入手，分析其存在的问题和不合理之处。
Through analyzing the calculation of vertical bearing capacity of rock-socketed pile given in technical code for building pile foundations, some unreasonable issues in the code were found.
但实践证明这种桩形在灰土井桩基础中较为突出的问题是其承载力偏低、沉降值偏大。
However, the practice indicated the problem of this kind of pile is that its bearing capacity is low but settlement is large.
上海地区建筑工程普遍采用桩基，但以粘性土为持力层的预制桩实测承载力普遍低于理论值，主要是因为休止期较短及对端承力作用认识不足。
Pile foundation is widely used in construction in Shanghai region, but the site test data on bearing capacity of pre-cast concrete pile based on cohesive soil were lower than theoretical level.
软岩地基上的嵌岩桩基础一般都认为是端承桩，设计时假定上部结构荷载全部由桩来承受，而不考虑桩间土的承载力。
Piles socketed in soft rock were traditionally regarded as end bearing piles, and the loads transferred from superstructure were assumed in design to be shouldered totally by the piles.
首先，本文介绍了静载试验的试验装置、加载方法，及如何通过静载试验测试数据确定桩基的竖向承载力。
First, this paper introduces us the dead load experimental test equipment, the increasing load method, and how to confirm the pile foundation's vertical bearing weight through this way.
然而在目前建筑业激烈竞争的市场环境下，控制建筑成本，尤其是通过降低过剩承载力来降低桩基成本势在必行。
However, with the fierce competition of construction in the market environment, controlling pile foundation's cost is imperative, especially by reducing overplus capacity.
锤击桩是桩基工程中广泛使用的一种沉桩方法，确定其单桩极限承载力是桩基工程设计中需首要解决的问题之一。
Driven pile is widely used in pile foundation and how to get it's ultimate bearing capacity is one of the problem that should be determined at first.
含有沉渣的桩基随着沉渣厚度的增加其承载力也不断降低，桩沉降越来越大。
The bearing capacity and settlement of the piles with sediment in pile tip is reduced as the thickness of sediment increases.
压入式沉桩是以较小的静压力，使桩克服土体的阻力，把预制钢筋混凝土桩沉入预定的标高，从而获得较大的承载力的桩基工程。
The jacked pile, as one of the types of pile foundation engineering, overcomes the resistance of soil and sinks to the preset level by less static pressure while affording a larger bearing capacity.
对设计中的基础承载力的确定、筏桩复合受力分析、下卧软土、持力层应力扩展、桩基施工等方面进行了较为详细的研讨。
Detailed study was done in the determination of base bearing capacity, raft stake composite stress analysis, auger ground, bearing stratum stress stretching and pile foundation construction.
桩基的竖向承载力由桩侧摩阻力和桩端阻力所组成。
The pile's vertical bearing capacity, is composed of point resistance and skin resistance.
根据复合桩基极限承载力计算模式，建立了考虑桩基-承台-地基土三者共同相互作用的可靠度极限状态方程。
According to the evaluation mode of limit bearing capacity of compound piling, a limit state equation of reliability for the interaction of associated piling, piling cap, and groundwork soil is setup.
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