I'm sorry to hear this noisy inconvenience and headache --literally.

With respect to legal aid, just ask for legal advice. Most likely would be free, firenze. If someone in your household has time to make phone call and be around /visit to get an answer later.

There is no place on campus near / in the library to rent a locker for you to dump your books for research?.. Just asking.

And as a final absolute last resort, provide the student newspaper with this latest development. That'll give them fodder! Might galvanize student housing management/facility management to modify their direction to contractors. But keep in mind, they have to complete the retrofit before winter comes again. As a negotiating tactic, your household is aiming for a compromise on construction noise/work times.