American Society of Civil Engineers


Active Earth Pressure on Retaining Wall for c-Φ Soil Backfill under Seismic Loading Condition


by Sanjay Kumar Shukla, (corresponding author), (Reader, Geotech. Engrg. Div., Dept. of Civ.Engrg., Inst. of Technol., Banaras Hindu Univ., Varanasi 221 005, India; also Adjunct Assoc. Prof., Discipline of Civ. and Envir. Engrg., School of Engrg., James Cook Univ., Townsville, Queensland 4811, Australia E-mail: skshukla_itbhu@hotmail.com; sanjay.shukla1@jcu.edu.au), Shrawan Kumar Gupta, (Asst. Engr., CES (I) Pvt. Ltd., New Delhi, India; formerly, Postgraduate Student, Geotech. Engrg. Div., Dept. of Civ. Engrg., Inst. of Technol., Banaras Hindu Univ., Varanasi 221 005, India), and Nagaratnam Sivakugan, (Assoc. Prof. and Head, Discipline of Civ. and Envir. Engrg., School of Engrg., James Cook Univ., Townsville, Queensland 4811, Australia. E-mail: siva.sivakugan@jcu.edu.au)

Journal of Geotechnical and Geoenvironmental Engineering, Vol. 135, No. 5, May 2009, pp. 690-696, (doi:  http://dx.doi.org/10.1061/(ASCE)GT.1943-5606.0000003)

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Document type: Technical Note
Closure:(See full record)
Discussion: by Venanzio R. Greco E-mail: venanziogreco@strutture.unical.it    (See full record)
Abstract: This technical note describes the derivation of an analytical expression for the total active force on the retaining wall for c-Φ soil backfill considering both the horizontal and vertical seismic coefficients. The results based on this expression are compared with those obtained from earlier analytical expressions for the active force for c-Φ soil backfill under seismic conditions, and found to have a similar trend of variation. The parametric study shows that the inclination of the critical failure plane with the horizontal plane decreases with the increase in values of seismic coefficients; the decrease being more for their higher values. The total active force increases with the increase in value of horizontal seismic coefficient; while it decreases with the increase in value of vertical seismic coefficient except for a very high value of horizontal seismic coefficient. Design charts are presented for various combinations of horizontal and vertical seismic coefficients (kh and kv), and values of cohesion and angle of shearing resistance for estimating the total active force on the retaining wall for c-Φ soil backfill for practical applications.


ASCE Subject Headings:
Backfills
Earth pressure
Earthquakes
Retaining structures
Seismic effects