岩石力学试验中试样选择和抗压强度预测方法研究

›› 2011, Vol. 32 ›› Issue (11): 3393-3403.

岩石力学试验中试样选择和抗压强度预测方法研究

邓华锋^{1, 2}，李建林¹，邓成进¹，王乐华¹，鲁涛¹

1. 三峡大学三峡库区地质灾害教育部重点实验室，湖北宜昌 443002；2. 武汉大学水利水电学院，武汉 430072

收稿日期:2010-03-04 出版日期:2011-11-01 发布日期:2011-11-09
作者简介:邓华锋，男，1979年生，讲师，博士，主要从事岩土工程方面的研究工作
基金资助:
湖北省自然科学基金项目(No. 2008CDB366)；宜昌市科学技术研究与开发项目(No. A2011-302-6)。

Analysis of sampling in rock mechanics test and compressive strength prediction methods

DENG Hua-feng^{1, 2}，LI Jian-lin¹，DENG Cheng-jin¹，WANG Le-hua¹，LU Tao¹

1. Key Laboratory of Geological Hazards on Three Gorges Reservoir Area, Ministry of Education, China Three Gorges University, Yichang, Hubei 443002, China; 2. School of Water Resources and Hydropower, Wuhan University, Wuhan 430072, China

Received:2010-03-04 Online:2011-11-01 Published:2011-11-09

摘要/Abstract

摘要： 岩石力学试验是岩石力学的基础，是研究岩石力学与工程的重要手段之一，但岩石力学试验的结果往往要受到很多因素的影响，试验结果的离散是普遍存在的，有时可能会得到完全相反的结论。以超声波传播速度、回弹值与岩石强度之间相互关系为基础，综合两种方法的优点，把超声-回弹综合法应用到岩石试样选择中，在正式试验之前，挑出那些可能会使试验结果很离散的试样，可以提高室内试验的测试准确程度。实践表明，这种综合选样方法具有较好的适用性，对有缺陷的试样有较好的识辨能力，而且方便、快速、对试样没有损伤，同时，超声-回弹综合法可以较好地预测岩石的抗压强度。因此，这种综合方法在岩石试样选择和强度预测中值得借鉴。

关键词: 超声波速, 回弹法, 缺陷, 选样, 强度预测

Abstract: Rock mechanics is based on rock mechanics test, which is one of the most important methods in studying rock mechanics and engineering. But the experimental results of rock mechanics test are always influenced by many factors and the discrete experimental results are ubiquitous. Those bring some inaccurate or even reverse results. Based on the relationship among ultrasonic velocity, rebound value and strength of rock, the ultrasonic-rebound comprehensive method was applied to the rock sample selection which has the advantages of two methods. In order to get the accurate results, the rock specimens which may cause discrete results can be selected out first before the laboratory test. Practice shows that such a comprehensive sampling method has good applicability. It is quite convenient to distinguish the rock specimens with interior defects and has no injury. At the same time, the ultrasonic-rebound method is quite useful to predict the compressive strength. So the application of this method in sampling of rock mechanics test and strength prediction is worth using for reference.

Key words: ultrasonic velocity, rebound method, interior defects, sampling, strength prediction

中图分类号:

TU 443

邓华锋，李建林，邓成进，王乐华，鲁涛. 岩石力学试验中试样选择和抗压强度预测方法研究[J]. , 2011, 32(11): 3393-3403.

DENG Hua-feng ，LI Jian-lin ，DENG Cheng-jin ，WANG Le-hua ，LU Tao. Analysis of sampling in rock mechanics test and compressive strength prediction methods[J]. , 2011, 32(11): 3393-3403.

参考文献

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