期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
断裂滑移型岩爆风险评价和预警方法研究现状 被引量:3
1
作者 高安森 戚承志 单仁亮 《矿业科学学报》 CSCD 2022年第6期643-654,共12页
地下工程需要频繁穿越地质构造区域,断裂滑移型岩爆频发,严重威胁地下工程结构的稳定和安全。为了揭示断裂滑移型岩爆诱发致灾机理,本文系统分析了触发断裂滑移型岩爆的地质构造条件、时空孕育特征、扰动触发机理、风险评价指标和预警... 地下工程需要频繁穿越地质构造区域,断裂滑移型岩爆频发,严重威胁地下工程结构的稳定和安全。为了揭示断裂滑移型岩爆诱发致灾机理,本文系统分析了触发断裂滑移型岩爆的地质构造条件、时空孕育特征、扰动触发机理、风险评价指标和预警方法等。研究结果表明:断裂滑移型岩爆多发生于含软弱结构面或层理面的地质构造带附近,岩体硬性结构面可以在一定程度内控制岩爆爆坑边界;断裂滑移型岩爆在临界失稳触发阶段存在典型的时空前兆特征,声发射(微震)监测参数在临界滑移失稳阶段存在“相对平静期”破坏前兆,红外热像温度存在短暂异常后随即迅速消失的破坏前兆;岩体内部天然层理面等缺陷结构为触发断裂滑移型岩爆提供了地质构造条件,巷道开挖和掘进等为触发断裂滑移型岩爆提供了滑移失稳空间,外界动力扰动等为触发断裂滑移型岩爆提供了诱发条件。 展开更多
关键词 地下工程 断裂滑移型岩爆 风险评价 预警方法
在线阅读 下载PDF
Experimental studies and failure mechanisms of strain andfault-slip rockburst:A review
2
作者 ZHANG Qing-he WEI Chun-xu +3 位作者 YUAN Liang LIANG Zhi-wei YANG Fa-wang WANG Xiao-rui 《Journal of Central South University》 SCIE EI CAS CSCD 2024年第10期3741-3781,共41页
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 o... 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. 展开更多
关键词 strain rockburst fault-slip rockburst experimental techniques experimental methods failure mechanisms
在线阅读 下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部