Experimental studies and failure mechanisms of strain andfault-slip rockburst:A review

应变型和断裂滑移型岩爆试验及破坏机理研究综述

In recent years,rockburst have gained significant attention as a crucial topic in rock engineering.Strain andfault-slip rockburst are two common types that occur frequently and cause substantial damage.The objective of thisreview is to conduct a comprehensive study on the experiments and failure mechanisms of strain and fault-slip rockburst.Firstly,the article analyzes the evolving trends in experimental research on rockburst in the past decade,highlightingmechanical properties and failure modes as the primary research focuses in understanding rockburst mechanisms.Subsequently,it provides an overview of the experimental techniques and methods employed for studying both types ofrockburst.Then,with a focus on the mechanical properties and failure modes,the article conducts an extensive analysisof the failure mechanisms associated with strain and fault-slip rockburst.By analyzing experimental data and observingthe failure characteristics of samples,it discusses the variations and common features exhibited by these two types ofrockburst under various test conditions.This analysis is of paramount importance in revealing the causes of rockburstformation and development,as well as in predicting rockburst trends and assessing associated risks.Lastly,thelimitations of current rockburst experiments and future research directions are discussed,followed by a comprehensivesummary of the entire article.

近年来,岩爆作为岩石工程中的一个重要课题备受关注,应变型和断裂滑移型岩爆是其中两种典型的岩爆,发生的频次高、危害大。研究人员致力于通过试验揭示这两类岩爆的破坏机理,从而合理准确地对其进行预测防控。随着技术的发展和对岩爆认识的加深,试验方法从单轴试验机逐渐演变为真三轴试验机,这种试验方法能更真实地反映实际岩体所承受的原位应力情况。与此同时,在试验中考虑的因素也更加全面,例如中间主应力的影响被纳入考虑范围。本文旨在全面研究应变型和断裂滑移型岩爆试验及其破坏机理。首先,分析了近十年岩爆试验研究热点的演化趋势,发现力学特性和破坏模式是岩爆破坏机理的主要研究方向。然后介绍了两种岩爆的试验技术与方法。之后,从力学特性和破坏模式两个角度着重分析了应变型和断裂滑移型岩爆的破坏机理,通过分析试验数据和观察试样的破坏特征,探讨了两种岩爆在不同试验条件下的变化规律和共性特点,这对于揭示岩爆形成与发展的原因以及预测岩爆的趋势和风险具有重要意义。最后,对目前岩爆试验的局限性和未来研究方向进行了探讨。本综述深入地总结并分析了两类岩爆机理的复杂性,并为未来相关研究的深化提供了新的见解和借鉴。