{"title":"岩石的损伤量化和失效预测:基于红外辐射和声发射能量演变的新方法","authors":"","doi":"10.1016/j.ijrmms.2024.105920","DOIUrl":null,"url":null,"abstract":"<div><p>Rock failure under external force is a process of energy conversion between the external environment and the rock system. This study aims to quantify rock damage and predict failure from an energy perspective. Infrared radiation (IR) and acoustic emission (AE) technologies were used to monitor the failure process of red sandstone during uniaxial loading experiments in real time. The energy evolution law during the rock failure process was analyzed. Based on the Stefan–Boltzmann law, a quantitative parameter, average cumulative radiation energy increment (<span><math><mrow><mi>Δ</mi><mi>A</mi><mi>C</mi><mi>R</mi><mi>E</mi></mrow></math></span>), was proposed for IR indicators. A coupling mathematical model between elastic strain energy and <span><math><mrow><mi>Δ</mi><mi>A</mi><mi>C</mi><mi>R</mi><mi>E</mi></mrow></math></span> was derived. The correlation between cumulative AE energy and dissipated strain energy was also analyzed. Results reveal that the rock failure process can be divided into four stages according to energy evolution: compaction, elastic, elastic–plastic, and failure stages. The proposed <span><math><mrow><mi>Δ</mi><mi>A</mi><mi>C</mi><mi>R</mi><mi>E</mi></mrow></math></span> can serve as a basis for dividing these stages. A cubic polynomial relationship was found between <span><math><mrow><mi>Δ</mi><mi>A</mi><mi>C</mi><mi>R</mi><mi>E</mi></mrow></math></span> and elastic strain energy. AE cumulative energy and dissipated strain energy showed similar variation trends. Furthermore, based on <span><math><mrow><mi>Δ</mi><mi>A</mi><mi>C</mi><mi>R</mi><mi>E</mi></mrow></math></span>, AE cumulative energy, and energy evolution theory, a failure prediction indicator (<span><math><mrow><mi>I</mi><mi>R</mi><mi>A</mi><mi>E</mi><mi>E</mi><mi>R</mi></mrow></math></span>) was proposed. This indicator can effectively identify precursor points of rock failure. A quantitative indicator for rock damage evolution under combined IR and AE action was created using <span><math><mrow><mi>I</mi><mi>R</mi><mi>A</mi><mi>E</mi><mi>E</mi><mi>R</mi></mrow></math></span> as the characterization parameter of the rock damage variable, demonstrating high reliability. This research provides strong support for estimating rock states and guiding the design of rock engineering structures.</p></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":null,"pages":null},"PeriodicalIF":7.0000,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Damage quantification and failure prediction of rock: A novel approach based on energy evolution obtained from infrared radiation and acoustic emission\",\"authors\":\"\",\"doi\":\"10.1016/j.ijrmms.2024.105920\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Rock failure under external force is a process of energy conversion between the external environment and the rock system. This study aims to quantify rock damage and predict failure from an energy perspective. Infrared radiation (IR) and acoustic emission (AE) technologies were used to monitor the failure process of red sandstone during uniaxial loading experiments in real time. The energy evolution law during the rock failure process was analyzed. Based on the Stefan–Boltzmann law, a quantitative parameter, average cumulative radiation energy increment (<span><math><mrow><mi>Δ</mi><mi>A</mi><mi>C</mi><mi>R</mi><mi>E</mi></mrow></math></span>), was proposed for IR indicators. A coupling mathematical model between elastic strain energy and <span><math><mrow><mi>Δ</mi><mi>A</mi><mi>C</mi><mi>R</mi><mi>E</mi></mrow></math></span> was derived. The correlation between cumulative AE energy and dissipated strain energy was also analyzed. Results reveal that the rock failure process can be divided into four stages according to energy evolution: compaction, elastic, elastic–plastic, and failure stages. The proposed <span><math><mrow><mi>Δ</mi><mi>A</mi><mi>C</mi><mi>R</mi><mi>E</mi></mrow></math></span> can serve as a basis for dividing these stages. A cubic polynomial relationship was found between <span><math><mrow><mi>Δ</mi><mi>A</mi><mi>C</mi><mi>R</mi><mi>E</mi></mrow></math></span> and elastic strain energy. AE cumulative energy and dissipated strain energy showed similar variation trends. Furthermore, based on <span><math><mrow><mi>Δ</mi><mi>A</mi><mi>C</mi><mi>R</mi><mi>E</mi></mrow></math></span>, AE cumulative energy, and energy evolution theory, a failure prediction indicator (<span><math><mrow><mi>I</mi><mi>R</mi><mi>A</mi><mi>E</mi><mi>E</mi><mi>R</mi></mrow></math></span>) was proposed. This indicator can effectively identify precursor points of rock failure. A quantitative indicator for rock damage evolution under combined IR and AE action was created using <span><math><mrow><mi>I</mi><mi>R</mi><mi>A</mi><mi>E</mi><mi>E</mi><mi>R</mi></mrow></math></span> as the characterization parameter of the rock damage variable, demonstrating high reliability. This research provides strong support for estimating rock states and guiding the design of rock engineering structures.</p></div>\",\"PeriodicalId\":54941,\"journal\":{\"name\":\"International Journal of Rock Mechanics and Mining Sciences\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":7.0000,\"publicationDate\":\"2024-09-19\",\"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/S1365160924002855\",\"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}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Rock Mechanics and Mining Sciences","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1365160924002855","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}
Damage quantification and failure prediction of rock: A novel approach based on energy evolution obtained from infrared radiation and acoustic emission
Rock failure under external force is a process of energy conversion between the external environment and the rock system. This study aims to quantify rock damage and predict failure from an energy perspective. Infrared radiation (IR) and acoustic emission (AE) technologies were used to monitor the failure process of red sandstone during uniaxial loading experiments in real time. The energy evolution law during the rock failure process was analyzed. Based on the Stefan–Boltzmann law, a quantitative parameter, average cumulative radiation energy increment (), was proposed for IR indicators. A coupling mathematical model between elastic strain energy and was derived. The correlation between cumulative AE energy and dissipated strain energy was also analyzed. Results reveal that the rock failure process can be divided into four stages according to energy evolution: compaction, elastic, elastic–plastic, and failure stages. The proposed can serve as a basis for dividing these stages. A cubic polynomial relationship was found between and elastic strain energy. AE cumulative energy and dissipated strain energy showed similar variation trends. Furthermore, based on , AE cumulative energy, and energy evolution theory, a failure prediction indicator () was proposed. This indicator can effectively identify precursor points of rock failure. A quantitative indicator for rock damage evolution under combined IR and AE action was created using as the characterization parameter of the rock damage variable, demonstrating high reliability. This research provides strong support for estimating rock states and guiding the design of rock engineering structures.
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.