Journals Information
Civil Engineering and Architecture Vol. 11(4), pp. 2240 - 2254
DOI: 10.13189/cea.2023.110441
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Impact of Overburden on Hydraulic Conductivity and Numerical Analyses of Seepage and Stability of Cement Stabilized Embankments
Shahnawaz Zardari *, Riaz Bhanbhro , Muhammad Auchar Zardari , Bashir Ahmed Memon , Aamir Khan Mastoi , Amjad Hussain Bhutto
Department of Civil Engineering, Quaid-e-Awam University of Engineering, Science and Technology, Pakistan
ABSTRACT
The study introduces new approaches for determining hydraulic conductivity of natural and cemented soils under varying overburden and consolidation loads, followed by numerical evaluations of seepage and canal stability when cemented soils are utilised. This was done mostly due to the fact that Pakistan has several canal breaches and embankment failures annually. Therefore, it is crucial to examine the stability of existing canals in terms of seepage and stability and to recommend ways for their reinforcement. This study attempts to examine constant seepage conditions and the stability of existing canals. Results reveal that overburden loads can impair hydraulic conductivity considerably. At higher stresses of 200 kPa of overburden stress, the hydraulic conductivity of natural soils was reduced by 189%, and by 306% and 133% for the mix of 5% cement and silty clay and 10% cement, respectively. In addition, it was noted that the canal embankments were only marginally safe due to the constant seepage. Varying ratios of 5% and 10% cement with silty clay having 1 m thick layers with different dimensions were used to analyse and reinforce the weak canal embankments. It was also discovered that 5% cemented soil layers provided greater stability. This research suggests techniques for fortifying both the present and future canal embankments.
KEYWORDS
Overburden Stress, Consolidation Stress, Hydraulic Conductivity, Cemented Soils, Triaxial Test
Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Shahnawaz Zardari , Riaz Bhanbhro , Muhammad Auchar Zardari , Bashir Ahmed Memon , Aamir Khan Mastoi , Amjad Hussain Bhutto , "Impact of Overburden on Hydraulic Conductivity and Numerical Analyses of Seepage and Stability of Cement Stabilized Embankments," Civil Engineering and Architecture, Vol. 11, No. 4, pp. 2240 - 2254, 2023. DOI: 10.13189/cea.2023.110441.
(b). APA Format:
Shahnawaz Zardari , Riaz Bhanbhro , Muhammad Auchar Zardari , Bashir Ahmed Memon , Aamir Khan Mastoi , Amjad Hussain Bhutto (2023). Impact of Overburden on Hydraulic Conductivity and Numerical Analyses of Seepage and Stability of Cement Stabilized Embankments. Civil Engineering and Architecture, 11(4), 2240 - 2254. DOI: 10.13189/cea.2023.110441.