岩石声发射b值及其计算方法研究  

Study on Rock Acoustic Emission b-Value and Its Calculation Method

作　　者：赵海溪 丁梦磊 刘雪艳 蒋芳 ZHAO Haixi;DING Menglei;LIU Xueyan;JIANG Fang(College of Geosciences and Engineering,North China University of Water Resources and Electric Power,Zhengzhou 450046,China)

机构地区：[1]华北水利水电大学地球科学与工程学院,河南郑州450046

出　　处：《河南科技》2023年第8期69-72,共4页Henan Science and Technology

摘　　要：【目的】声发射技术被广泛应用于岩土工程等领域中,该技术对灾害的监测预警起到很好的辅助作用。其中,b值分析已经成为研究的一个重要方面。【方法】为了系统总结岩石声发射b值的相关研究,通过查阅总结已有的文献资料,对声发射特征参数b值近年来的研究现状及进展进行阐述,探讨b值的计算方法。【结果】通过对b值计算公式、数据处理方法的详细阐述,总结出两种常用的b值计算方法的优势和局限性。【结论】最后对岩石声发射b值的研究工作进行分析,为今后研究中的进一步解决相关问题提供思路,本研究成果可对岩石声发射b值的有关研究提供一些帮助。[Purposes]Acoustic emission technology has been widely used in geotechnical engineering and other fields,and has played a very important auxiliary role in disaster monitoring and warning.The b-value analysis has become an important research aspect.[Methods]In order to systematically summa⁃rize the relevant studies on the b-value of acoustic emission in rocks,after reviewing and summarizing previous literatures.This study mainly describes the research status and progress of the b-value of acous⁃tic emission characteristic parameter in recent years,and discusses the calculation method of b-value.[Findings]The b-value calculation formula and data processing method are described in detail,and the advantages and limitations of two commonly used b-value calculation methods are summarized.[Conclu⁃sions]Finally,the research work of rock AE b-value is prospected,and several problems that can be fur⁃ther solved in the future research are put forward.This study can provide some help for the related re⁃search of rock AE b-value.

关 键 词：岩石声发射 声发射b值 b值计算方法 岩石损伤 

分 类 号：TU45[建筑科学—岩土工程]