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1·This article introduces the method of mechanical impedance employed in the non-destructive quality-control of the foundation pile.

本文介绍了机械阻抗法无破损检验桩基础质量。

2·This paper discusses that influence of horizontal resisting force due to soil around pile on the dynamic property of foundation pile.

本文探讨了桩周土体的横向抗力对基桩动力稳定性的影响。

3·Then the paper gave living engineering examples analyzed foundation pile completeness and defect type, put forward quality assessment of pile foundation.

结合工程实例检分析了基桩的完整性及缺陷类型，对桩基进行了质量评价。

4·There are many methods detecting the integrity of foundation pile. Low strain method, which has low cost and is easy to use, is widely used by detection departments.

对基桩完整性检测的方法很多，因低应变法具有成本低、使用便捷等特点，被检测单位广泛采用。

5·The self-Balanced method is a new technologies of foundation pile static load test, vertical compression pile is closer to the actual working conditions of a test method.

自平衡试桩法是一种基桩静载试验新技术，是接近于竖向抗压桩实际工作条件的一种试验方法。

6·The method of analyzing and calculating the internal force of wharf foundation pile and vibration analysis method for wharf foundation pile under flood tide torrent are advanced.

提出涨潮急流下码头基桩内力的分析计算方法和基桩的振动分析方法，找出了断桩原因。

7·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.

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。

8·In this paper, the causes of rebound foundation pit result in the crack in the foundation pile were analyzed through the engineering case, and the preventive measures were proposed.

本文通过实例分析了在深基坑工程中，由于基坑回弹导致钻孔灌注桩断桩的原因，并提出了预防措施。

9·The stress - wave reflection method exist limitation in testing the quality of foundation pile. The direction of defects in pile body exerts a tremendous influence on testing results.

应力波反射法在检测基桩质量的应用上存在着方法上的局限，且桩身缺陷的方向性对检测结果影响极大。

10·Usually the poured pile by artificial excavation expanding bottom is one foundation pile style of tall building, whose quality can affect the structural safety of the construction directly.

人工挖孔扩底灌注桩是高层建筑常用的一种桩基础形式，其施工质量的好坏直接影响到建筑的结构安全。