A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dynamic Behavior of a Geotextile-Reinforced Pond Ash Embankment
The present study investigates the applicability of woven geotextile in improving the seismic performance of a pond ash embankment located in Renusagar, in seismic zone III of India. Reinforcing materials used are woven geotextiles, placed at 1 and 3 layers of pond ash embankment. To obtain the material models, strain-controlled cyclic triaxial tests had been carried out. A general expression was developed for shear modulus and damping ratio of pond ashes reinforced with and without woven geotextiles considering the data taken from seismic zones of III and IV. The proposed equations have been compared with the reported results of other pond ashes located in India. Finite element model of the pond ash embankment reinforced with geotextiles has been developed. A fluid solid porous material model has been employed to incorporate pore pressure build up during cyclic loading. A parametric study has also been performed to study the effect of reinforcements on the seismic behavior of Renusagar pond ash embankment. Results showed that using the three layers of geotextile, the lateral displacement reduces up to 17%, and the excess pore pressure reduces as much as 30–45%. From the study, it can be concluded that use of woven geotextile in pond ash dykes can be beneficial for its application as reinforcing material in highway embankments, building fills, and earth dams.
Dynamic Behavior of a Geotextile-Reinforced Pond Ash Embankment
The present study investigates the applicability of woven geotextile in improving the seismic performance of a pond ash embankment located in Renusagar, in seismic zone III of India. Reinforcing materials used are woven geotextiles, placed at 1 and 3 layers of pond ash embankment. To obtain the material models, strain-controlled cyclic triaxial tests had been carried out. A general expression was developed for shear modulus and damping ratio of pond ashes reinforced with and without woven geotextiles considering the data taken from seismic zones of III and IV. The proposed equations have been compared with the reported results of other pond ashes located in India. Finite element model of the pond ash embankment reinforced with geotextiles has been developed. A fluid solid porous material model has been employed to incorporate pore pressure build up during cyclic loading. A parametric study has also been performed to study the effect of reinforcements on the seismic behavior of Renusagar pond ash embankment. Results showed that using the three layers of geotextile, the lateral displacement reduces up to 17%, and the excess pore pressure reduces as much as 30–45%. From the study, it can be concluded that use of woven geotextile in pond ash dykes can be beneficial for its application as reinforcing material in highway embankments, building fills, and earth dams.
Dynamic Behavior of a Geotextile-Reinforced Pond Ash Embankment
Vijayasri, Thanikella (author) / Raychowdhury, Prishati (author) / Patra, Nihar Ranjan (author)
Journal of Earthquake Engineering ; 24 ; 1803-1828
2020-11-01
26 pages
Article (Journal)
Electronic Resource
Unknown
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