child_road01	detail/dt_conc	10		10
child_road02	detail/dt_conc	10		10
child_road03	detail/dt_conc	10		10
child_wall01	detail/dt_conc	10		10
child_wall02	detail/dt_conc	10		10
child_wall03	detail/dt_conc	10		10
child_wall04	detail/dt_conc	10		10
child_wall05	detail/dt_conc	10		10
child_wall06	detail/dt_conc	10		10
child_wall07	detail/dt_conc	10		10
child_wall08	detail/dt_conc	10		10