CAUSES AND PREVENTIONS OF THE GROUND FISSURES IN BEIJING AIRPORT

The Beijing Capital International Airport Terminal 2 has been built using more than ten years. In recent years, the ground fissures have been found in the Z2-Z3-F region. The ground fissures made the road surface uneven, have affected the normal use of the Terminal 2. In order to find out the characteristics and causes of the ground fissures, and provide basis for the prevention and control of the ground fissures, by collecting and summarizing related literature and survey data, comprehensive geophysical prospecting method, road surface displacement monitoring results. Briefly introduces regional geological environment background of the ground fissures, and preliminarily studies the main features of ground fissures and systematically analyzes the factors and mechanism of ground fissure disaster at last. Tectonic activity is the intrinsic factors that give rise to the ground fissures disaster, is the main cause of the formation and development of the ground fissures, the ground uneven settlement caused by the underground water level changing, is the extrinsic factor, it is also an cause of the development of ground fissures. Pointed out that it is not feasible and economical to use the engineering measures to cure the ground fissures radically. Thus, a few pieces of preventive advice and measures are proposed, such as the internet of things technology, it provides a useful reference for the treatment of the ground fissures in the future.