It would be nice to add a texture indicator on reinforced mine wall, plank and log, to show some sort of cracks and damaged texture on it when there is 75 or 80% of it's durability timer, showing it will soon vanish in few hours and will need inspection for a futur replacement planning.
Actually only carefull and periodic inspection of all your mine section inform you that you will need replacement in xx hours.
For instance, if you forgot to inspect and go to bed, if a reinforcement vanish the next hour, you go to your 10h work day, then when you came back the unreinforced wall section have potentially collapse and need to be open again (depend of game days duration settings).
A visual texture indicator can inform you in one glance that your next jump into the game will be for mine reinforcing work and mine management or at least inform your fellow miners to check the mine in your absence.