The paper expounds the installation procedure of 3# unit under-rack and thrust bearing in Lijiaxia hydropower plant,and proposes the measurement to obtain the design requirement.

• 文章重点阐述了李家峡水电站3%23机组下机架与推力轴承安装过程，以及为达到设计要求，对变形控制所采取的工艺措施。