| 一个新的岩石力学特性测定方法 |
| |
| 引用本文： | 王伟,徐卫亚.一个新的岩石力学特性测定方法[J].岩土力学,2008,29(Z1):538-544. |
| |
| 作者姓名： | 王伟 徐卫亚 |
| |
| 作者单位： | 1.岩土力学与堤坝工程教育部重点实验室，南京 210098；2.河海大学 岩土工程科学研究所，南京 210098 |
| |
| 摘 要： | 当前，压痕试验是测定金属、高聚物和陶瓷等材料力学特性的一种十分有效且简便的方法。本文旨在探讨如何应用该方法测定岩石材料的力学特性。介绍了一种新的用于岩石材料测试的微痕试验（微米级压痕试验）系统和它的校准方法，具体阐述了该方法在岩石上的应用。通过和常规单压试验结果的比较，讨论了岩石杨氏弹性模量和抗压强度指标的测量结果。介绍了该设备在进行有压微痕试验的改进，并通过对砂岩的有压微痕试验反映出砂岩力学性能对于围压的依赖性。
|
| 关 键 词： | 压痕试验 岩石 围压 校准试验 力学性能 |
| 收稿时间： | 2008-07-25 |
A new method of testing rock properties |
| |
| WANG Wei,XU Wei-ya.A new method of testing rock properties[J].Rock and Soil Mechanics,2008,29(Z1):538-544. |
| |
| Authors: | WANG Wei XU Wei-ya |
| |
| Institution: | 1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China; 2. Geotechnical Research Institute, Hohai University, Nanjing 210098, China |
| |
| Abstract: | Currently, the indentation test is an effective method to characterize the mechanical properties of materials such as metals, polymers and ceramics. The objective of this work is to provide a comprehensive methodology for the characterization of geomaterials (rocks) by microindentation (indentation in microns). The study concerns the calibration of the device and its application to the characterization of rocks. Compared with the conventional axial compression test, Young’s modulus and compression resistance obtained by microindentation test are discussed. On the other hand, for the purpose of the microindentation test under confining pressure, the modified apparatus is presented. Through this type of microindentation, the dependence of sandstone on the confining pressure is shown. |
| |
| Keywords: | indentation test rocks confining pressure calibration test mechanical properties |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《岩土力学》浏览原始摘要信息 |
| 点击此处可从《岩土力学》下载免费的PDF全文 |
