{"title":"基于能量耗散理论的节理岩体损伤各向异性及能量演化机制研究","authors":"Bingqian Yan, Hongpu Kang, Jianping Zuo, Peitao Wang, Xiangshang Li, Meifeng Cai, Jianzhong Liu","doi":"10.1007/s10064-023-03278-1","DOIUrl":null,"url":null,"abstract":"<div><p>The rapid development of roads and scenic spots in the suburbs of Beijing has formed a large number of artificial slopes, creating conditions for geological disasters such as collapse. It is urgent to study the influence of joint development and rainfall on the energy evolution mechanism in the process of geological disasters and rock mass failure. The deformation and failure process of jointed rock mass was accompanied by the accumulation and release of energy. To explore the damage anisotropy characteristics and the energy evolution law of jointed rock mass, nuclear magnetic resonance (NMR), triaxial compression, and acoustic emission (AE) tests of rock specimens were carried out. The pore evolution law of jointed rock specimen was analyzed, and the variation law of mechanical parameters and acoustic emission of rock specimen was studied. By establishing the energy evolution constitutive model of jointed rock specimens, the variation laws of total energy, elastic strain energy, and dissipative energy during deformation and failure of jointed rock masses were analyzed, and the energy evolution mechanism during damage and failure of jointed rock masses was revealed. The failure mode characteristics of jointed rock specimens with different dip angles under different confining pressures were analyzed.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"82 8","pages":""},"PeriodicalIF":3.7000,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Study on damage anisotropy and energy evolution mechanism of jointed rock mass based on energy dissipation theory\",\"authors\":\"Bingqian Yan, Hongpu Kang, Jianping Zuo, Peitao Wang, Xiangshang Li, Meifeng Cai, Jianzhong Liu\",\"doi\":\"10.1007/s10064-023-03278-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The rapid development of roads and scenic spots in the suburbs of Beijing has formed a large number of artificial slopes, creating conditions for geological disasters such as collapse. It is urgent to study the influence of joint development and rainfall on the energy evolution mechanism in the process of geological disasters and rock mass failure. The deformation and failure process of jointed rock mass was accompanied by the accumulation and release of energy. To explore the damage anisotropy characteristics and the energy evolution law of jointed rock mass, nuclear magnetic resonance (NMR), triaxial compression, and acoustic emission (AE) tests of rock specimens were carried out. The pore evolution law of jointed rock specimen was analyzed, and the variation law of mechanical parameters and acoustic emission of rock specimen was studied. By establishing the energy evolution constitutive model of jointed rock specimens, the variation laws of total energy, elastic strain energy, and dissipative energy during deformation and failure of jointed rock masses were analyzed, and the energy evolution mechanism during damage and failure of jointed rock masses was revealed. The failure mode characteristics of jointed rock specimens with different dip angles under different confining pressures were analyzed.</p></div>\",\"PeriodicalId\":500,\"journal\":{\"name\":\"Bulletin of Engineering Geology and the Environment\",\"volume\":\"82 8\",\"pages\":\"\"},\"PeriodicalIF\":3.7000,\"publicationDate\":\"2023-07-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bulletin of Engineering Geology and the Environment\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10064-023-03278-1\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, ENVIRONMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of Engineering Geology and the Environment","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10064-023-03278-1","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
Study on damage anisotropy and energy evolution mechanism of jointed rock mass based on energy dissipation theory
The rapid development of roads and scenic spots in the suburbs of Beijing has formed a large number of artificial slopes, creating conditions for geological disasters such as collapse. It is urgent to study the influence of joint development and rainfall on the energy evolution mechanism in the process of geological disasters and rock mass failure. The deformation and failure process of jointed rock mass was accompanied by the accumulation and release of energy. To explore the damage anisotropy characteristics and the energy evolution law of jointed rock mass, nuclear magnetic resonance (NMR), triaxial compression, and acoustic emission (AE) tests of rock specimens were carried out. The pore evolution law of jointed rock specimen was analyzed, and the variation law of mechanical parameters and acoustic emission of rock specimen was studied. By establishing the energy evolution constitutive model of jointed rock specimens, the variation laws of total energy, elastic strain energy, and dissipative energy during deformation and failure of jointed rock masses were analyzed, and the energy evolution mechanism during damage and failure of jointed rock masses was revealed. The failure mode characteristics of jointed rock specimens with different dip angles under different confining pressures were analyzed.
期刊介绍：
Engineering geology is defined in the statutes of the IAEG as the science devoted to the investigation, study and solution of engineering and environmental problems which may arise as the result of the interaction between geology and the works or activities of man, as well as of the prediction of and development of measures for the prevention or remediation of geological hazards. Engineering geology embraces:
• the applications/implications of the geomorphology, structural geology, and hydrogeological conditions of geological formations;
• the characterisation of the mineralogical, physico-geomechanical, chemical and hydraulic properties of all earth materials involved in construction, resource recovery and environmental change;
• the assessment of the mechanical and hydrological behaviour of soil and rock masses;
• the prediction of changes to the above properties with time;
• the determination of the parameters to be considered in the stability analysis of engineering works and earth masses.
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