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Stability Analysis of Flood Bunds: A Study on Geotechnical Health Evaluation of Embankments
Language英语
Noshin, Sumayya1; Alam, Mehtab2; Sadiq, Shamsher3; Mandokhail, Saeedullah Jan4
2018
Source PublicationIOP Conference Series: Materials Science and Engineering
Author of SourceIOP
Volume414
Issue1
Pages012035
meetingIOP Conference Series: Materials Science and Engineering
Conference DateApril 2, 2018 - April 3, 2018
Conference PlaceBaleli, Quetta
CountryPakistan
Contribution Rank2
AbstractFlood constitutes one of the world's most serious environmental hazards. Flood bunds are the earthen hydraulic structures which are constructed along the River to control the Flood water to avoid damages to the infrastructures, crops, livestock and loss of human lives. Pakistan which lies in the Indus Basin has been facing severe threats and losses from the floods since histories. About 6807km length of flood embankment has been constructed to safeguard against the floods in the country. Punjab has been worst hit province by heavy floods and rains causing heavy loss. Geotechnical Evaluation is vital for proper functioning of such structures. In this study four flood bunds susceptible to potential embankment breaching during flood have been selected along river Chenab in district Muzaffar Garh Irrigation zone. Suite of analysis using GeoStudio software (SLOPE/W and SEEP/W for stability and seepage analysis respectively) has been performed by considering four different critical scenarios, (1) steady state at highest flood level (2) rapid drawdown from highest flood level (3) steady state at extreme condition with 3 feet free board (4) rapid drawdown from extreme condition with 3 feet free board. The safety of the flood bunds is evaluated in terms of River Embankment Breaching Vulnerability Index (REBVI), safe exit gradient and factor of safety against slope failure. Based on these calculated factors from the numerical analysis it is found that embankment at RD:25,29 are marginally safe, whereas at RD: 147, 157 are susceptible to pipping failure. Therefore, it is recommended to make embankment impervious using cohesive material and to install cut-off walls or berms to lengthen the seepage path. © 2018 Institute of Physics Publishing. All rights reserved.
KeywordStability Stability analysis flood bunds embankments
DOI10.1088/1757-899X/414/1/012035
ISSN1757-8981
EISSN1757-899X
Indexed ByEI
Accession numberAccession number:20184005906076
Citation statistics
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/23911
Collection中国科学院水利部成都山地灾害与环境研究所
Corresponding AuthorNoshin, Sumayya
Affiliation1.Department of Civil Engineering, UET, Lahore, Pakistan;
2.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China;
3.Department of Civil and Environment Engineering, Hanyang University, Seoul, Korea, Republic of;
4.Department of Civil Engineering, BUITEMS, Quetta, Pakistan
Recommended Citation
GB/T 7714
Noshin, Sumayya,Alam, Mehtab,Sadiq, Shamsher,et al. Stability Analysis of Flood Bunds: A Study on Geotechnical Health Evaluation of Embankments[C]//IOP,2018:012035.
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