Baiyun Airport Phase III expansion project surrounding Airport Economic Industrial Park infrastructure phase I project (Longkou-Xiaobu resettlement area) the project planned total land area of about 383,166 square meters, the project planned total construction area of about 405,341 square meters. The main construction contents of the project include the construction of resettlement area, underground space development and construction, commercial and public construction supporting facilities, roads within the scope of the red line and other airport economic industrial park infrastructure. The design grade of the foundation of the project is Grade A, and the highest safety grade of the foundation pit is grade two. The whole construction process is difficult and the construction risk is high. It is necessary to strictly control the change of groundwater, the deformation of surrounding embankments and building structures.