混合塔筒风机基础施工关键技术研究与应用OA

In response to the challenges of controlling settlement of traditional wind turbine foundations in deep soft soil strata,and technical bottlenecks such as pile group effects during the construction of hybrid tower foundations,insufficient tensioning accuracy,and mass concrete temperature control,research on key technologies for efficient construction is carried out.Relying on the Zhongming Leling 80 MW wind power project,the following three core innovative technologies are developed:1)A PHC pipe pile group driving optimization technology is developed,establishing a"hammer weight-drop height-penetration rate"parameter model.Combined with a"flexible cushion+spiral jump driving"process and BIM dynamic simulation,it effectively controlled the pile group effect;2)A fan-shaped positioning device was invented to achieve high-precision positioning of tensioning pipes;3)An intelligent temperature control system for mass concrete is constructed,utilizing composite phase change materials(PCM)and distributed optical fiber temperature measurement technology,linked with a circulating water cooling system for real-time regulation.Application results show that the pile head damage rate is successfully reduced to 1.5%,the positioning efficiency of tensioning pipes is increased by 50%,and the temperature difference between the interior and exterior of the concrete is controlled within 18℃.The construction cycle for a single foundation is shortened from 21 days to 13 days,with significant improvements in rebar installation and concrete pouring efficiency.These key technologies effectively overcome the construction challenges of hybrid towers in soft soil strata,providing a replicable technical path for the construction of wind farms in soft soil areas,and hold significant engineering application value for promoting cost reduction and efficiency increase in the wind power industry.