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1·The characteristic of high building is load heavy, ground base buried deeply, base width big in common and usually using the pile foundation work.

高层建筑的特点是荷载大，基础埋深大，且一般基础宽度大，多用桩基。

2·In conventional pile foundation design theory, piles work at the elastic range and upper loads are fully Shared by piles.

传统的桩基础设计理论考虑桩工作在弹性阶段，上部荷载完全由桩来承担。

3·Based on years of work experience, this paper discusses the pile foundation engineering quality problems and control.

本文结合多年工作经验，探讨桩基础工程质量通病与防治。

4·Rowed pile structure is most widely adopted in the supporting work of foundation pit currently and reasonable pile spacing can save the costs of the supporting work.

排桩式结构是目前基坑支护工程中应用最广泛的形式，合理选取桩距可节省支护工程造价。

5·Ram extension pile is widely used in reinforcement work for construction foundation as a new type reinforcement pattern.

夯扩桩作为一种新型地基加固方式在我国建筑地基加固中得到了越来越广泛的应用。

6·Work behavior of composite foundation of cemented soil pile is studied by 3D non-linear FEM analysis applying post-peak softening model of cemented soil.

考虑水泥土峰值后软化性能对水泥土桩复合地基性能进行了三维非线性有限元分析。

7·Combined with practical work the construction technology of post-grouting bored pile is introduced and discussed from test pile, construction procedure, pile foundation test and other aspects.

介绍了后压浆钻孔灌注桩的施工工艺，结合工程实例，从试桩、成桩工艺、桩基检测等方面进行了论述，指出后压浆钻孔灌注桩工艺具有承载力高、工程造价低的特。

8·Analysis results reflect the practical work properties of pile-soil interaction, and validate the correctness of composite pile foundation.

分析结果基本反映了桩-土-筏的实际工作性状，验证了复合桩基理论的正确性。