Superstatistical approach of electric potential and acoustic emission for investigating damage evolution and precursor of water-bearing sandstone under uniaxial compression

IF 7 1区 工程技术 Q1 ENGINEERING, GEOLOGICAL
Tiancheng Shan , Zhonghui Li , Xin Zhang , Xiaoran Wang , Haishan Jia , Enyuan Wang , Quancong Zhang , Yue Niu , Dongming Wang
{"title":"Superstatistical approach of electric potential and acoustic emission for investigating damage evolution and precursor of water-bearing sandstone under uniaxial compression","authors":"Tiancheng Shan ,&nbsp;Zhonghui Li ,&nbsp;Xin Zhang ,&nbsp;Xiaoran Wang ,&nbsp;Haishan Jia ,&nbsp;Enyuan Wang ,&nbsp;Quancong Zhang ,&nbsp;Yue Niu ,&nbsp;Dongming Wang","doi":"10.1016/j.ijrmms.2025.106063","DOIUrl":null,"url":null,"abstract":"<div><div>Deep resource mining and geotechnical structures are prone to serious geological disasters in complex environments of abundant groundwater and high geostress. Comprehensive analysis of electric potential (EP) and acoustic emission (AE) from a superstatistical perspective promises predictive insights, necessitating further exploration. In this paper, to reveal the effects of different water contents and acidity, the EP and AE monitoring tests of coarse sandstone under uniaxial compression were conducted. The temporal evolution and superstatistical features of AEs and EPs were analyzed to elucidate correlations with pore-fissure parameters and mechanical properties. The impact of water content and acidity on response mechanisms of EPs and AEs was investigated by nuclear magnetic resonance (NMR), scanning electron microscope (SEM) and X-ray Diffraction (XRD) tests. Based on Tsallis entropy <em>q</em><sub>EP</sub> and <em>q</em><sub>AE</sub>, a novel muti-geophysical prediction method were proposed. The results indicate mechanical properties and AE activities decrease with increasing water content and acidity, while the average EP value enhances due to electrokinetic effect. EPs and AEs exhibit superstatistical features, and <em>q</em><sub>EP</sub> and <em>q</em><sub>AE</sub> decrease with increasing water content and acidity, correlating negatively with porosity and pore fissure dimensions. It is attributed to reduced frictional slip and rupture severity by water lubrication and chemical erosion, diminishing charge generation and elastic wave release. <em>q</em><sub>EP</sub> and <em>q</em><sub>AE</sub> vary from 1 to 3, and display drastic fluctuation after plastic stage. Then damage weighting coefficient and damage correlation coefficient proposed are used to identify the precursory of rock failure and obtain good prediction effect. These findings offer new perspectives for the prediction of geological disasters associated with water-rich environments.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"189 ","pages":"Article 106063"},"PeriodicalIF":7.0000,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Rock Mechanics and Mining Sciences","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1365160925000401","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, GEOLOGICAL","Score":null,"Total":0}
引用次数: 0

Abstract

Deep resource mining and geotechnical structures are prone to serious geological disasters in complex environments of abundant groundwater and high geostress. Comprehensive analysis of electric potential (EP) and acoustic emission (AE) from a superstatistical perspective promises predictive insights, necessitating further exploration. In this paper, to reveal the effects of different water contents and acidity, the EP and AE monitoring tests of coarse sandstone under uniaxial compression were conducted. The temporal evolution and superstatistical features of AEs and EPs were analyzed to elucidate correlations with pore-fissure parameters and mechanical properties. The impact of water content and acidity on response mechanisms of EPs and AEs was investigated by nuclear magnetic resonance (NMR), scanning electron microscope (SEM) and X-ray Diffraction (XRD) tests. Based on Tsallis entropy qEP and qAE, a novel muti-geophysical prediction method were proposed. The results indicate mechanical properties and AE activities decrease with increasing water content and acidity, while the average EP value enhances due to electrokinetic effect. EPs and AEs exhibit superstatistical features, and qEP and qAE decrease with increasing water content and acidity, correlating negatively with porosity and pore fissure dimensions. It is attributed to reduced frictional slip and rupture severity by water lubrication and chemical erosion, diminishing charge generation and elastic wave release. qEP and qAE vary from 1 to 3, and display drastic fluctuation after plastic stage. Then damage weighting coefficient and damage correlation coefficient proposed are used to identify the precursory of rock failure and obtain good prediction effect. These findings offer new perspectives for the prediction of geological disasters associated with water-rich environments.
求助全文
约1分钟内获得全文 求助全文
来源期刊
CiteScore
14.00
自引率
5.60%
发文量
196
审稿时长
18 weeks
期刊介绍: The International Journal of Rock Mechanics and Mining Sciences focuses on original research, new developments, site measurements, and case studies within the fields of rock mechanics and rock engineering. Serving as an international platform, it showcases high-quality papers addressing rock mechanics and the application of its principles and techniques in mining and civil engineering projects situated on or within rock masses. These projects encompass a wide range, including slopes, open-pit mines, quarries, shafts, tunnels, caverns, underground mines, metro systems, dams, hydro-electric stations, geothermal energy, petroleum engineering, and radioactive waste disposal. The journal welcomes submissions on various topics, with particular interest in theoretical advancements, analytical and numerical methods, rock testing, site investigation, and case studies.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信