Discussion on "Active earth pressure against inclined rigid retaining wall considering rotation of principal stresses under translation mode" by Luo et al. (2021).

The prediction of active earth pressure is an essential issue in geotechnical engineering. Luo et al. (2021) proposed a new theoretical method for calculating the active earth pressure on a battered rigid retaining structure under translation mode. The theory of Luo et al. (2021) has some drawbacks which are discussed in this paper. [ABSTRACT FROM AUTHOR]