The proliferation of unsafe behavior in underground-construction sites has been widespread, which leads to accidents in underground construction from time to time. Accidents are not only a threat to the personal safety of construction workers but also cause property losses. Intervention on how to prevent the propagation of unsafe behavior among underground-construction workers in a timely manner, further improvement in the safety-management level of construction enterprises, and ensuring smooth implementation of projects are urgent measures to solve this problem. In this study, an SCIMR (Susce...