{"title":"粘土在测湿条件下微观结构特性的综合研究","authors":"Venkata Balaiah Kami, Anumita Mishra","doi":"10.1007/s10064-025-04129-x","DOIUrl":null,"url":null,"abstract":"<div><p>The present work investigated the macrostructural and microstructural changes in the behavior of two different soil samples collected from Rayaka (Su-1Clay) and Dodka (Su-2Clay) in Vadodara, Gujarat, India, under multi-staged oedometer tests. The microstructural analysis was performed to understand the pore morphology and particle rearrangement for different stress cycles and durations. For interlinking the macroscopic and microscopic data, porosity and void ratio were compared for both levels, and results showed an average deviation of 6%. From the mineralogical data, illite group minerals were predominant in both the samples and similar macroscopic behavior was observed during the multi-staged tests. The pore count was found to be higher during the initial stages of consolidation, as there was no stress involved. The microscopic results for Su-2Clay indicated that the loading patterns, load duration and plane of observations (i.e., parallel or perpendicular to loading) do not influence the circularity of pores and shape ratio. It was observed that the particle rearrangement was influenced by their loading value and duration, plane of observations and loading patterns. As a result, the behavior of most of the particles changed from anisotropic to isotropic as the stress value and time increased.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 2","pages":""},"PeriodicalIF":4.9000,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A comprehensive study on microstructural behavior of clay under oedometer condition\",\"authors\":\"Venkata Balaiah Kami, Anumita Mishra\",\"doi\":\"10.1007/s10064-025-04129-x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The present work investigated the macrostructural and microstructural changes in the behavior of two different soil samples collected from Rayaka (Su-1Clay) and Dodka (Su-2Clay) in Vadodara, Gujarat, India, under multi-staged oedometer tests. The microstructural analysis was performed to understand the pore morphology and particle rearrangement for different stress cycles and durations. For interlinking the macroscopic and microscopic data, porosity and void ratio were compared for both levels, and results showed an average deviation of 6%. From the mineralogical data, illite group minerals were predominant in both the samples and similar macroscopic behavior was observed during the multi-staged tests. The pore count was found to be higher during the initial stages of consolidation, as there was no stress involved. The microscopic results for Su-2Clay indicated that the loading patterns, load duration and plane of observations (i.e., parallel or perpendicular to loading) do not influence the circularity of pores and shape ratio. It was observed that the particle rearrangement was influenced by their loading value and duration, plane of observations and loading patterns. As a result, the behavior of most of the particles changed from anisotropic to isotropic as the stress value and time increased.</p></div>\",\"PeriodicalId\":500,\"journal\":{\"name\":\"Bulletin of Engineering Geology and the Environment\",\"volume\":\"84 2\",\"pages\":\"\"},\"PeriodicalIF\":4.9000,\"publicationDate\":\"2025-02-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bulletin of Engineering Geology and the Environment\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10064-025-04129-x\",\"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/s10064-025-04129-x","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}
A comprehensive study on microstructural behavior of clay under oedometer condition
The present work investigated the macrostructural and microstructural changes in the behavior of two different soil samples collected from Rayaka (Su-1Clay) and Dodka (Su-2Clay) in Vadodara, Gujarat, India, under multi-staged oedometer tests. The microstructural analysis was performed to understand the pore morphology and particle rearrangement for different stress cycles and durations. For interlinking the macroscopic and microscopic data, porosity and void ratio were compared for both levels, and results showed an average deviation of 6%. From the mineralogical data, illite group minerals were predominant in both the samples and similar macroscopic behavior was observed during the multi-staged tests. The pore count was found to be higher during the initial stages of consolidation, as there was no stress involved. The microscopic results for Su-2Clay indicated that the loading patterns, load duration and plane of observations (i.e., parallel or perpendicular to loading) do not influence the circularity of pores and shape ratio. It was observed that the particle rearrangement was influenced by their loading value and duration, plane of observations and loading patterns. As a result, the behavior of most of the particles changed from anisotropic to isotropic as the stress value and time increased.
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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