A procedure to estimate the lateral force in clay-pipe interaction after breakout Pablo Cesar Trejo, Jose Renato M.S. Oliveira, Márcio S.S. Almeida, Maria C.F. Almeida and Mario A. Vignoles Rev. Fr. Geotech., 168 (2021) 3 Published online: 21 April 2021 DOI: 10.1051/geotech/2021013