Abstract：
Due to the complexity of geological conditions of Hunan TV Program Making Base, the distribution of soft sand layer and drift sand is wide and irregular. According to the geological prospecting results, from the structure safety and economy, pile foundation selection has carried on the detailed comparison and analysis, manual excavation pile was selected as the most ideal pile foundation. At the same time, solidification treatment before pile foundation excavation and pile-forming technical treatment during pile foundation excavation are discussed systematically and integrally, from the engineering cost, construction period and other requirements. The best construction method was selected, which has scientific guidance to the construction site. The research results have reference value for the selection and construction of the pile foundation under similar geological conditions.
