岩石脆性评价方法研究进展及适应性探讨

脆性是岩石材料最重要的力学性质之一，准确评价岩石脆性在水利水电、交通、能源勘探开发的地下工程与边坡稳定性、岩石可钻性及可切割性分析等方面起着非常重要的作用。国内外研究人员从物理参数、力学参数、弹性参数等方面建立了大量的脆性评估指标，但目前仍缺乏统一的脆性认知和描述。本文系统综述了国内外岩石脆性评价方法，对常用的数十种脆性评价指标进行了分类，总结了现有脆性指标的基本原理和应用状况，探讨了各类脆性指标的适应性、优势及存在的问题，最后探讨了岩石脆性评价方法未来的研究方向。

REVIEW OF ROCK BRITTLENESS EVALUATION METHODS AND DISCUS-SION ON THEIR ADAPTABILITIES

Brittleness is one of the most important mechanical properties of rock materials. Accurate evaluation of rock brittleness has extremely high practical value and plays a crucial role in underground engineering and slope stability, rock drillability and cutability analysis in water conservancy, hydropower, transportation, energy exploration and development. Researchers from all over the world have established many brittleness evaluation indexes from physical parameters, mechanical parameters, and elastic parameters. However, there is no unified recognition and definition of rock brittleness yet. This article systematically reviews the methods of rock brittleness evaluation at home and abroad, classifies dozens of commonly used brittleness evaluation indicators, summarizes the basic principles and application status of existing brittleness indicators, and discusses the adaptability, advantages and existing problems of brittleness indicators. Finally, the future research direction of rock brittleness evaluation method is discussed.