本文介绍基岩变形计和夹层错动变形计,并对基岩变形规律及原因作了分析。认为葛洲坝工程基岩变形的主要原因是由于上部结构的混凝土自重和地应力、基岩蠕变、水压力、边荷载、温度变化等因素引起的。此外发现基岩变形与深度有关,由表层逐步向深层增大,还总结了基岩不同深度与变形的相关关系。在蓄水期间基岩变形较小。 This paper introduces the bedrock deforming meter and the sandwich deforming deformable meter, and analyzes the deformation law and reason of the bedrock. It is considered that the deformation of the bedrock of Gezhouba Project is mainly caused by such factors as the self-weight and in-situ stress of concrete in the superstructure, creep of bedrock, water pressure, side load and temperature change. In addition, it is found that the deformation of the bedrock is related to the depth, gradually increasing from the surface to the deep, and the correlation between the depth and deformation of the bedrock is also summarized. Bedrock deformation is small during the storage period.