working on 1RM improvement using singles/doubles?

looks good, im looking for a 315 1RM by end of february, currently at 285.

im looking to maximise my use of time in the weight room. When i go to the gym, I look to get stronger by moving bigger numbers. A lot of times, the track work was too much so the gym work isnt going to be as good of quality. But typically Im able to complete a good sprint session, then be able to do cleans, squats, RDLs, upper body work, etc. depending on the day, with good quality.

so basically my original question is looking to increase my 1RM the quickest way possible thus maximizing my gym time.