  In this paper we have investigated some rip cosmological models in an
extended symmetric teleparallel gravity theory. We consider the form
$f(Q,T)=aQ^m+bT$ in the Einstein-Hilbert action and expressed the field
equations and the dynamical parameters in terms of the non-metricity $Q$. Three
rip models such as Little Rip, Big Rip and Pseudo Rip are presented. The energy
conditions and the cosmographic parameters are derived and analysed for all
these models.
