Method for lifting and transporting large parts of underground nuclear power station

The invention discloses a method for lifting and transporting large parts of an underground nuclear power station. The method comprises the following steps: (1) implementing the construction of rock-anchored beams of a nuclear reactor plant cavern, lifting an annular construction bridge machine through an object-lifting vertical shaft, and installing the annular construction bridge machine on the rock-anchored beams; (2) completing the excavation of the nuclear reactor plant cavern, installing a containment cylinder and annular crane track beams, lifting an annular crane girder into the object-lifting vertical shaft by a gantry crane, and installing the annular crane girder on the annular crane track beams in cooperation of the gantry crane and the annular construction bridge machine; (3) by using the annular crane track beams and the annular crane girder as stress supporting points, lifting containment dome steel linings into the nuclear reactor plant cavern from the object-lifting vertical shaft piece by piece, and assembling the containment dome steel linings piece by piece; (4) transporting permanent large equipment into the containment cylinder through an equipment transportation passage, and turning and lifting the permanent large equipment by using the annular crane girder. The method meets the demands of lifting and transporting the large equipment of a commercial underground nuclear power station, thereby being widely applied in the technical field of nuclear engineering.