土工基础

›› 2014, Vol. 28 ›› Issue (2): 159-162.

• 工程实录 • 上一篇    下一篇

岩石单轴压缩试验活动承压板对变形测值影响的修正方法

何晓晴   

  1. （中冶集团武汉勘察研究院有限公司，武汉 430080）
  • 收稿日期:2013-12-30 出版日期:2014-04-21 发布日期:2014-04-25
  • 作者简介:何晓晴（1972-），女，工程师，研究方向为岩土试验。

The Deformation of the Movable Bearing Plates on the Uniaxial Compression Test Results of Intact Rock Samples

HE Xiaoqing   

  1. (Wuhan SurveyingGeotechnical Research Institute Co., Ltd. of MCC，Wuhan, 430080)
  • Received:2013-12-30 Online:2014-04-21 Published:2014-04-25

摘要： 阐述了室内岩石压力机活动承压板在岩石单轴压缩变形试验中对变形测值的影响，提出了以逐级压力P(kN)为横坐标，每级压力下的变形测值与上一级压力下变形测值的差值△Uh为纵坐标绘制压力P(kN)～△Uh（变形差值）的关系曲线图，根据曲线的趋势确定第一级压力下的变形值，从而对后面第二、三……级压力下的变形测值进行修正以此来降低活动承压板对变形测值的影响。

关键词: 活动承压板, 变形测值, 关系曲线, 修正值

Abstract: The effect of deformation of the bearing plates on the testing results of the laboratory uniaxial compression of intact rock samples are discussed in this paper. The proposed correction method can be summarized as following: Plotting the relationship between the measured incremental deformations, which is the measured differences under the current applied pressure, P and the previous pressure, and the incremental applied pressures. The deformation under the first applied pressure can be estimated based on extrapolating the plotted curve; therefore, the following incremental loadings can be corrected accordingly.

Key words: Movable Bearing Plates, Deformation Measurement, Relationship between Pressure and Deformation, Correction Values