Wind power tower construction method

摘要

PPROBLEM TO BE SOLVED: To provide a construction method of a wind power generation tower very superior in workability, safety and economic efficiency by constructing the enlarged wind power generation tower of about 40 to 120 m while wholly dispensing with a large crane and a large-scale temporary member by performing installation work of a wind power generator such as a nacelle and a rotor blade in a relatively low place of an aboveground part of about 20 m to 30 m. PSOLUTION: This wind power generation tower is constructed by a step of installing the wind power generator such as the nacelle 4 and the rotor blade 5 in a head part of an inside tower body 1 by fixing an outside tower body 2 to a foundation 3 by constructing the tower bodies 1 and 2 of two bodies slidably combined inside and outside in the vertical direction in a nesting system, and a step of binding a lower end part 11 of the inside tower body 1 to an upper end part 20a of the outside tower body 2 in the stage of reaching a rising limit by lifting the inside tower body 1 by taking reaction to the outside tower body 2. PCOPYRIGHT: (C)2007,JPO&INPIT