“…Some scholars identify and evaluate the risk of CM, give CM safety control methods, and believe that the lack of safety measures will lead to greater safety accidents [2]. Some studies analyze the types, characteristics, and causes of CM accidents, pointing out that the types of crane accidents include installation and dismantling accidents, accidents using machinery, falling object accidents, and the causes of accidents including cranes themselves, man-made, and natural factors, resulting in the definition of CM extrusion, falling, and tipping, and analyzing the risks of accidents in terms of operation and equipment [3][4]. Some studies have shown that the two most important risks in the construction phase are quality risk and schedule risk, for quality risk can establish a raw material incoming inspection system, establish a raw material incoming inspection system; for schedule risk, should strengthen the scientific control of the preliminary engineering design, and improve the construction work to ensure the quality of the project and avoid the consumption of resources caused by rework [5].…”