三峡升船机船厢室底板沉降监测变形数据分析

三峡升船机是目前世界上规模最大和技术难度最高的升船机，其底板高程为50 m。为监测该底板在施工期间的沉降情况并研究沉降对升船机土建施工、埋件及设备安装的影响，对沉降监测数据及原因进行了分析，建立了变形与影响因素之间的数学模型。研究表明：该底板沉降呈周期性变化且在±2 mm左右，其影响可以忽略不计。

Analysis on deformation data from settlement monitoring of bottom slab of chamber for ship-lift of Three Gorges Project

The ship-lift of Three Gorges Project is the largest ship-lift with the highest technical difficulty in the world at present; of which the bottom slab height is 50 m. In order to monitoring the settlement of the bottom slab during the construction and study its impact on the civil construction， embedded parts and equipment installation of the ship-lift， an analysis is made on the monitoring data and the causation of the settlement， and then a math-model between deformation and impact factors is established herein. The study shows that the settlement of the bottom slab presents a periodical change with a scope of ±2 mm， from which the impact can be neglected.