桩身应力应变测试是从微观上了解桩基工作性状的基本方法。
It is the basic method of understanding the performance behavior of big diameter driven cast-in-place pile by the test of stress and strain.
本文对武汉岩土力学研究所近十年桩基检测工作进行了较为系统的介绍和综述，包括：桩基检测技术的应用研究及采用的检测方法；
The testing works on pile foundations including the applicability of the research results and the testing methods adopted in recent decade is introduced and summarized in this paper.
为了满足工程设计的需要，有必要对桩基在往复荷载作用下的工作性状和计算方法进行研究。
To satisfy the needs of project design, it is necessary to study for calculation method and the working properties of pile foundation under reciprocating load role.
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