CONSTRUCTION TECHNOLOGY OF PILE FOUNDATION IN THE KARST DEVELOPMENT AREA OF AN AIRPORT TERMINAL BUILDING
Combined with the T3 terminal area of Nanning Wuwei International Airport and supporting facilities construction project-terminal building project,the design and construction of pile foundation in the strong karst development area are studied.One pile hole+pipe wave detection method is used to replace the traditional multiple pile hole.The pipe wave detection in the borehole of the pile center can quickly explore the development and distribution of karst,weak interlayer and fissure zone in the pile range.Compared with the traditional pile hole,the survey cost is saved and the construction period is accelerated.The construction of pile foundation adopts the dry hole construction technology,and the targeted treatment scheme is adopted for the bad geology such as cross hole,collapse hole and karst cave to control the construction quality.
karst developmentpile foundation constructionone pile holebad geological
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