桩侧阻力先于桩端阻力的发挥,桩的沉降量主要是桩身压缩量。
The side friction is mobilized earlier than the tip resistance and the pile settlement is mainly the compression of pile shaft compression.
验证了桩侧阻力与接触面两侧切向位移差之间关系可以用双曲线表示。
It was validated that the relationship between the side resistance of piles and the difference of tangential displacement between two sides of the pile-soil interface could be expressed by hyperbola.
表明孔壁粗糙度越大,相应的桩侧阻力就越大,从而提高钻孔灌注桩的承载力。
The result shows that bigger hole coarsenesses have bigger side pile resistance so as to improve the bearing capacity of bored - pile.
认为有必要深入研究影响桩侧阻力的因素,探讨桩侧阻力的取值方法和计算手段。
So it is necessary to research ingredient of impacting pile side resistance deeply, and to probe into available way and calculation means of pile side resistance.
本文基于埋设有测试元件的嵌岩桩原位试验,分析了在桩顶荷载作用下,嵌岩桩的桩侧阻力、桩端阻力的特征。
Based on the in-situ testing of rock-socked pile embedded with test components, the characteristics of the point resistance and skin resistance are studied in this paper.
通过单桩竖向抗压静载试验和动载试验,分析了静动载对桩身轴力分布、桩身侧摩阻力和基桩沉降的影响及其变化规律。
Distributive regularities of inner force of pile under static and dynamic load, the change of pile's side resistance, and settlement of piles are analyzed by static and dynamic load test.
通过非线性优化算法,拟合实测的Q—S曲线,可得到桩土系统的工程力学参数,并由此计算得到桩身轴力及侧摩阻力分布曲线。
Measured Q-S curve are back figured by nonlinear optimization approach and model parameters are found simultaneously, then distribution of axial force and skin friction along pile are calculated.
将单桩简化为受侧摩阻力的弹性杆单元,土体简化为均质弹性半空间无限体。
The single pile is simplified to elastic shaft elements suffering skin friction and the soil mass is considered to be homogeneous isotropic elastic semi space.
泥浆制备、循环、净化等因素的好坏直接影响到钻进速度和成孔质量、桩侧摩阻力及桩端阻力的发挥。
These factors, which include slurrys preparation, circulation, depuration and so on, would influence drilling speed, bore quality, exertion of pile shaft resistance and base resistance.
剪切位移传递法的主要特点是将桩侧摩阻力与端阻力分开考虑,通过位移协调将二者再联系起来。
Shear displacement transfer characterised via separate analysis of side friction and tip resistance, and then associating them through displacement coordination.
本文在研究静压桩沉桩机理的基础上,探讨影响沉桩时桩端阻力和桩侧摩阻力大小的各种因素。
Based on the research of mechanism of jacked pile, the factors that may affect the end resistance and the shaft resistance are discussed.
打入式基桩施工引起的持续振动可引起桩周土液化,降低桩侧摩阻力,从而影响单桩承载力。
Owing to the liquefaction of soil around piles caused by sustained construction vibration the lateral resistance and bearing capacity of piles could be decreased.
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.
设置在分层土中的桩,其桩侧总摩阻力由桩所穿过的各土层的摩阻力所构成。
The skin resistance consists of frictions provided from every soil layer which the pile goes through.
发现置换率相同时,承台板宽度大,水泥土桩的荷载临界深度也大,桩侧摩阻力分布深度下移。
It is found that the load critical depth and the friction range increase while the cap breadth increases with the same replacement ratio.
发现置换率相同时,承台板宽度大,水泥土桩的荷载临界深度也大,桩侧摩阻力分布深度下移。
It is found that the load critical depth and the friction range increase while the cap breadth increases with the samer.
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.
建立了桩周土的极限侧阻力标准值及极限端阻力标准值与剪切波速度的相关模型。
The interrelated model of the shear wave velocity with the normal value of ultimate lateral resistance(qsik)and ultimate end bearing resistance(qpk)of the soil around the pile is established.
其竖向荷载主要依靠桩侧摩阻力进行传递,桩侧摩阻力的发挥存在最佳深度范围。
The vertical load transmission mostly depends on the side friction of pile, and there is an optimal range of depth for side friction.
研究了褥垫层厚度变化对桩身轴力传递、桩侧摩阻力分布、桩端阻力发挥、桩土荷载分担及桩土应力比的影响。
Axial force transmission, distribution of skin friction, tip resistance of pile, as well as tress ratio between pile and soil are changing with pillow.
结合广州地区岩土工程条件,提出了桩的极限侧阻力和极限端阻力的计算方法,并将之应用于实际工程桩基础设计中。
Some methods are put forward to evaluate ultimate flank friction and ultimate tip resistance of piles according to the geotechnical engineering condition in Guangzhou.
泥浆性能直接影响钻孔桩的承载力和桩侧摩阻力。
Property of slurry has direct impact on the bearing capacity and skin friction of bored piles.
同时,该修正方法可应用到钻孔灌注桩及桩侧负摩阻力引起的基桩沉降计算中。
At the same time, the revised method can be used to calculate the settlement of a bored pile and that of a foundation pile caused by negative frictional resistance around the pile.
根据实测资料,分析了桩侧摩阻力和端承力随上部堆载的变化关系,并由此研究了大型堆载条件下的桩土性状。
According to in-situ test data, the variation is analysed of pile skin friction and toe resistance with piling up weights.
桩侧摩阻力在各种情况的影响下变化较大,为能准确对其进行取值需对其影响因素进行研究。
It is founded that the value of side soil resistance of pile will change distinctly in different situation, to determine it more accurately the influence factors of it need to be researched.
桩的轴向承载力是由桩端阻力和桩侧摩阻力共同构成的。
The axial capacity of single pile includes point or base resistance and side resistance.
对于桩长和桩的长径比均小于25的嵌岩桩,侧阻力随桩顶荷载的增加而增大,且在高的应力水平下平缓增长,当达到最大荷载时达到试验最大值,其嵌岩部分侧阻力从上至下依次发挥。
When pile length and the ratio about pile length to pile diameter is less than 25, side resistance is aggrandized by increasing of the load, and gently added at high stress level.
而靠近桩端的桩侧土体,尽管桩土相对位移较小,桩侧摩阻力值却会急剧增大。
Though very little relative displacement between pile and soil occurs, the side resistance of soil close to pile bottom will increase sharply.
求得不同地层与桩身之间的侧摩阻力。
在对侧摩阻力双曲线模型进行分析的基础上,对上海某地区灌注桩进行了现场试验。
Based on the analysis of hyperbolic model of skin friction, this paper introduces in-situ static test results of cast-in-place piles conducted in some place of Shanghai.
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