No matter what L/D is changing, the sediment influence on pile tip resistance is great.
无论桩长径比的大小如何，沉渣对桩端阻力影响都较大。
Various factors which may affect the ultimate pile tip pressure are also analyzed herein for reference of designing.
文中还分析了影响桩端极限压力的各种因素，可供进行压浆桩设计时参考。
Failure surface shape of pile tip and ultimate tip resistance was obtained according to Mohr-Column failure criteria.
根据莫尔-库仑破坏准则得出了桩端的破坏面形状以及极限端阻力。
The bearing capacity and settlement of the piles with sediment in pile tip is reduced as the thickness of sediment increases.
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 length of short pile is decided by soft soil strength of short pile tip in terms of analysis on bearing capacity of short pile.
在分析短桩加固区承载力内涵的基础上，提出了短桩长度由桩端处软土强度决定的设计标准。
According to the condition in the construction, the technique of pressure grouting of pile tip was adopted and obtained well effect.
该工程基础原设计采用人工挖孔灌注桩，根据施工中出现的实际情况，又采用桩端压力注浆技术，取得了良好的效果。
The thesis analysis the pile shaft resistance distribution, the pile axial force distribution, the pile tip resistance and P-S curve.
对桩土作用桩侧摩阻力分布、桩轴力分布、桩端阻力、P - S曲线进行分析。
After pressure grouting on pile tip, elastic working range of piles will be extended and be in favour of pile to bear repeated loads and dynamic loads.
桩端压力灌浆后，桩的弹性工作范围延长，有利于桩承受重复荷载和动力荷载。
The bearing capacity of super-long and large-diameter bored pile tip is influenced by the facts including construction process, depth effect, size effect and so on.
阐述了超长大直径钻孔灌注桩桩端承载力的影响因素，包括施工工艺、深度效应和尺寸效应等。
When the load on pile top is small, the later friction undertake mainly the load. With the increase of load on pile top, the resistance of pile tip develops gradually.
桩端力发挥的程度与桩顶荷载的大小相关，桩顶压力较小时，桩顶荷载主要由桩侧摩阻力承担，随桩顶压力的增大，桩端力将逐渐发挥。
When the bearing stratum at the tip of bored pile is sandy soil stratum, the method of pile tip pressure grouting can effectively improve the bearing capacity of single piles.
泥浆护壁钻孔灌注桩当桩端持力层为砂土层等非岩石层时，通过桩底压密灌浆能有效地提高单桩承载力。
The key problem of karst foundation is not the foundation strength itself but the foundation stability, especially the stability of the free face of rock mass on the pile tip.
岩溶地基突出问题不是地基强度而是地基稳定性，尤其是桩端岩体临空面稳定性。
When installing steel tubular piles in regions where granite is shallowly overburdened, the piles are easy to deviate and the pile tip is easy to warp, resulting in slow driving.
在浅覆盖层花岗岩地区进行钢管桩施工，存在易偏位、桩尖易卷口和进度慢等技术难题。
The primary goal of this research is to study the influences of different pile-tip soils on the bearing characters of bored piles.
通过模型试验研究不同桩端土对承压钻孔灌注桩承载特性的影响。
The primary goal of this research is to study the influences of different pile-tip soils on the bearing characters of bored piles.
通过模型试验研究不同桩端土对承压钻孔灌注桩承载特性的影响。
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