The Application and Research of the Technology of Sliding Micrometer in Pile Frictional Resistance Test
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摘要: 阐述了滑动测微技术的基本原理与特点,并通过工程实例,说明了在考虑桩身混凝土应力应变的非线性问题和桩身横截面变化等因素下,滑动测微技术可使桩身侧阻力的测试结果更为精确,并讨论了桩身混凝土非均质问题的解决途径。Abstract: This paper illustrates the essential principle and characteristic of the sliding micrometer,and by an engineering case proposes that it can raise the test accuracy of pile frictional resistance,considering some factors such as the nonlinearity of stress and strain of pile shaft concrete and the variation of pile diameter,and discusses the solution way of the non-homogeneity of pile shaft concrete.
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Key words:
- pile load test /
- sliding micrometer /
- fricational resistance /
- nonlinearity
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