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1·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。

2·It is showed that the pile spacing has a great influence on the ultimate bearing capacity of pile tip.

该公式反映出群桩间距对极限承载力的影响。

3·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。

4·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。

5·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。

6·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。

7·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。

8·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。

9·The manual hole digging pile was adopted in foundation of some building. Granite residual clay was chosen as the bearing stratum of pile tip.

某建筑物基础采用人工挖孔桩，桩端持力层为花岗岩残积粘性土，经检测发现桩身完整而承载力远低于设计要求。

10·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。