Impact of flow direction and soil characteristics on suffusion susceptibility: Analyzing soil resistance and filtration effects

IF 3.3 2区工程技术 Q3 ENERGY & FUELS Geomechanics for Energy and the Environment Pub Date : 2025-03-08 DOI:10.1016/j.gete.2025.100657

Dinh Minh Tran , Didier Marot , Fateh Bendahmane , Rachel Gelet

{"title":"Impact of flow direction and soil characteristics on suffusion susceptibility: Analyzing soil resistance and filtration effects","authors":"Dinh Minh Tran , Didier Marot , Fateh Bendahmane , Rachel Gelet","doi":"10.1016/j.gete.2025.100657","DOIUrl":null,"url":null,"abstract":"<div><div>Most suffusion tests described in the literature are performed by applying a vertical flow to homogenous specimens, whereas on site, the flow can be in another direction and the soil may display local variations of density and grain size distribution. A series of suffusion tests are performed with a multi-direction flow device, under vertical or horizontal flow. Two cohesionless soils which slightly differ by their grain size distribution and density are tested. Specimens are either composed of a single soil or bi-layered, i.e. a layer of each soil. The suffusion susceptibility is characterized by two critical hydraulic gradients and an erosion resistance index. With the current testing procedure, the influence of the local density variations on the suffusion susceptibility is not significant. The results show that under horizontal flow, each tested soil becomes more heterogeneous, but also slightly more resistant towards suffusion. When considering bi-layered specimens and a flow parallel to the soil interface, the suffusion susceptibility is mainly controlled by the most erodible soil. On the other hand, when the flow is perpendicular to the soil interface, the suffusion susceptibility is mainly controlled by the most resistant soil. The results also highlight the influence of pore opening on the filtration and the selection of the pore opening of the downstream filter is discussed<strong>.</strong></div></div>","PeriodicalId":56008,"journal":{"name":"Geomechanics for Energy and the Environment","volume":"42 ","pages":"Article 100657"},"PeriodicalIF":3.3000,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Geomechanics for Energy and the Environment","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S235238082500022X","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENERGY & FUELS","Score":null,"Total":0}

引用次数: 0

Abstract

Most suffusion tests described in the literature are performed by applying a vertical flow to homogenous specimens, whereas on site, the flow can be in another direction and the soil may display local variations of density and grain size distribution. A series of suffusion tests are performed with a multi-direction flow device, under vertical or horizontal flow. Two cohesionless soils which slightly differ by their grain size distribution and density are tested. Specimens are either composed of a single soil or bi-layered, i.e. a layer of each soil. The suffusion susceptibility is characterized by two critical hydraulic gradients and an erosion resistance index. With the current testing procedure, the influence of the local density variations on the suffusion susceptibility is not significant. The results show that under horizontal flow, each tested soil becomes more heterogeneous, but also slightly more resistant towards suffusion. When considering bi-layered specimens and a flow parallel to the soil interface, the suffusion susceptibility is mainly controlled by the most erodible soil. On the other hand, when the flow is perpendicular to the soil interface, the suffusion susceptibility is mainly controlled by the most resistant soil. The results also highlight the influence of pore opening on the filtration and the selection of the pore opening of the downstream filter is discussed.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

求助全文

约1分钟内获得全文去求助

来源期刊

Geomechanics for Energy and the Environment Earth and Planetary Sciences-Geotechnical Engineering and Engineering Geology

CiteScore

5.90

自引率

11.80%

发文量

期刊介绍： The aim of the Journal is to publish research results of the highest quality and of lasting importance on the subject of geomechanics, with the focus on applications to geological energy production and storage, and the interaction of soils and rocks with the natural and engineered environment. Special attention is given to concepts and developments of new energy geotechnologies that comprise intrinsic mechanisms protecting the environment against a potential engineering induced damage, hence warranting sustainable usage of energy resources. The scope of the journal is broad, including fundamental concepts in geomechanics and mechanics of porous media, the experiments and analysis of novel phenomena and applications. Of special interest are issues resulting from coupling of particular physics, chemistry and biology of external forcings, as well as of pore fluid/gas and minerals to the solid mechanics of the medium skeleton and pore fluid mechanics. The multi-scale and inter-scale interactions between the phenomena and the behavior representations are also of particular interest. Contributions to general theoretical approach to these issues, but of potential reference to geomechanics in its context of energy and the environment are also most welcome.