This project is the structure of the bolt ball space frame, 375m long, 120m span, total structure height of 45.574m, and construction area of 46486.86㎡. This project is a space frame structure with a super long span, which is one of the largest domestic space frame projects in China. The installation of the project starts with a middle section and then leads to the two ends . The space frame itself belongs to a super -risk project. In addition, its coverage of coal yard is the main coal supply area of the power plant. The normal operation of the coal yard is going on during construction. That results in a large construction difficulty and a high safety risk.