Review on research of butterfly failure theory and its application

Abstract

The mining of coal mine leads to the drastic change of the regional stress field of the roadway compared with the primary rock stress. Based on the non-isobaric stress environment of mining roadway, the quantitative relationship between the failure mode of roadway surrounding rock and the regional stress field is established by the butterfly failure theory, which provides a theoretical basis for the study of the mechanical behavior and dynamic disaster of roadway surrounding rock. Firstly, this paper systematically reviews the development process of butterfly failure related research, and expounds the research trend of butterfly theory. Then, three failure modes and their discriminant criteria, five types of butterfly failure characteristics and the adaptability of butterfly failure theory in four aspects of roadway surrounding rock are evaluated, and the application and innovation of butterfly failure theory in various roadway surrounding rock stability control, coal and gas joint mining, rock burst, coal and gas outburst, butterfly earthquake and fault formation mechanism are introduced. Finally, the adaptability and limitations of butterfly failure theory are deeply discussed, and the future development direction of butterfly failure theory is pointed out from the perspective of butterfly failure charecteristic charecterization, practical verification of a series of mechanisms, and new technology research and development.