Exploring the dwarven mines in search of Tyr is the first major part of the story in God of War Ragnarok. You are going to see a lot of different puzzle mechanics for the first time in here, which makes this place a little more challenging than other locations in the game.
One of the most common puzzles you are going to find in these dwarven mines are the water puzzles. Be it a water wheel that you must provide water to so it starts rotating or the reverse. Finding a way to obstruct the water flow. Sometimes these are easy but other times they can be quite tricky.
If you are having some trouble with any of the different puzzles getting machines and gears to start moving in the depths of the mines, the video guide here will be quite helpful to you. You will be able to see the solution for all of the puzzles in the mine and how they can be solved quickly.