INFLUENCE OF SURFACE CRACKS ON THE STABILITY OF CRACKED SOIL SLOPE

Q4 Engineering International Journal for Computational Civil and Structural Engineering Pub Date : 2022-12-28 DOI:10.22337/2587-9618-2022-18-4-82-90

M. Hosseini, P. Beiranvand, M. Mohammadiasl, Ashkan Hasanvand

{"title":"INFLUENCE OF SURFACE CRACKS ON THE STABILITY OF CRACKED SOIL SLOPE","authors":"M. Hosseini, P. Beiranvand, M. Mohammadiasl, Ashkan Hasanvand","doi":"10.22337/2587-9618-2022-18-4-82-90","DOIUrl":null,"url":null,"abstract":"The slope stability is a major concern to geotechnical engineers. Traditional methods of slope stability analysis have potentially ignored the influence of surface cracks. It is also known that seasonal rainfall and seepage through crack are closely related with slope failure. First, surface cracks provide special flow channels which increase the soil permeability and decrease the soil strength. Second, water-filled cracks apply an additional active force on the slope. Finally, cracks can create a part of the critical failure surface that has no shear strength. The objective of this paper is to investigate the influence of existing cracks on the stability of a cracked soil slope in different state. The effects of crack depth, slope angle and water-filled cracks on the stability of the cracked slope are explored. The analysis was conducted using the computer modelling programs Optum G2 to analysis of slope factor of safety. The results show that with increasing of slope angle the factor of safety decreases and this problem is significant in the slope with water filled cracks. Also, Factor of safety for all of slope angles in Dry and water filled cracks states with increasing the crack depth, decrease significantly.","PeriodicalId":36116,"journal":{"name":"International Journal for Computational Civil and Structural Engineering","volume":"14 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2022-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal for Computational Civil and Structural Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.22337/2587-9618-2022-18-4-82-90","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Engineering","Score":null,"Total":0}

引用次数: 0

Abstract

The slope stability is a major concern to geotechnical engineers. Traditional methods of slope stability analysis have potentially ignored the influence of surface cracks. It is also known that seasonal rainfall and seepage through crack are closely related with slope failure. First, surface cracks provide special flow channels which increase the soil permeability and decrease the soil strength. Second, water-filled cracks apply an additional active force on the slope. Finally, cracks can create a part of the critical failure surface that has no shear strength. The objective of this paper is to investigate the influence of existing cracks on the stability of a cracked soil slope in different state. The effects of crack depth, slope angle and water-filled cracks on the stability of the cracked slope are explored. The analysis was conducted using the computer modelling programs Optum G2 to analysis of slope factor of safety. The results show that with increasing of slope angle the factor of safety decreases and this problem is significant in the slope with water filled cracks. Also, Factor of safety for all of slope angles in Dry and water filled cracks states with increasing the crack depth, decrease significantly.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

地表裂缝对裂隙土坡稳定性的影响

边坡稳定性是岩土工程人员关注的主要问题。传统的边坡稳定性分析方法可能忽略了地表裂缝的影响。季节性降雨和裂缝渗流与边坡破坏密切相关。首先，表面裂缝提供了特殊的流动通道，增加了土壤的渗透性，降低了土壤的强度。其次，充满水的裂缝对边坡施加了额外的主动力。最后，裂缝会形成一个没有抗剪强度的临界破坏面。本文的目的是研究不同状态下既有裂缝对裂隙土坡稳定性的影响。探讨了裂缝深度、坡角和充水裂缝对裂隙边坡稳定性的影响。采用计算机模拟程序Optum G2对边坡安全系数进行分析。结果表明，随着坡角的增大，边坡的安全系数减小，在含水裂缝的边坡中，这一问题尤为突出。干裂缝和充水裂缝状态下各边坡角的安全系数随裂缝深度的增加而显著减小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊