I would like to ask the steel support line load is 420kn/m (design value), 20 meters deep foundation pit, steel support diameter of 609, wall thickness of 16mm
So, not in tube. Both ends of the tube should have beam, beam should be behind the steel gate or steel concrete continuous wall.The load should appear on the beam or plate
Of course you can't do this! The worker is right! You might as well ask someone to give a sketch and see how it can be added
So, what you said is the foundation pit excavation, pipe ends supporting, then why have load and steel 420kN/m?Do you want to build a house above the shop?
