What Are Drywall Joints?

Underground diaphragm wall construction refers to the excavation of a narrow deep trench and clear foundation in sections on the floor of the proposed underground building along the design site with special slotting machinery under the condition of mud wall protection. The reinforced cage was sunk and poured with underwater concrete to form a section of reinforced concrete wall. Several walls are connected into a whole to form a continuous underground wall. ^[1]