摘要
长江三峡永久船闸是三峡工程最主要的水工建筑物之一,其水平位移监测系统主要由布设在各级闸首和闸室的垂线和引张线组成。对永久船闸水平位移监测系统进行了介绍,并对近10 a来的监测成果进行了综合分析,阐述了三峡永久船闸水平位移的变形规律。监测成果表明:各级闸首基础垂线监测点累积水平位移量均很小;各线闸首顶部垂线监测点位移指向闸室临空面,上下游方向的水平位移受温度影响明显;闸室边墙主要表现为向闸室中心线方向的变形,南北闸室变形基本相当。
The permanent ship lock is one of the most important hydraulic structures of TGP and the horizontal displacement monitoring system consists of perpendicular lines and tension wires arranged in lock heads and lock chambers.We introduce the horizontal displacement monitoring system,analyze the monitoring results in recent 10 years and describe the horizontal displacement deformation laws of TGP permanent ship lock.The monitoring results show that the horizontal displacement of the perpendicular monitoring sites in the base of each step lock head is smaller;while the displacement of the perpendicular monitoring sites in the top of each step lock head develops towards the free face of lock chamber and the upstream and downstream horizontal displacements are obviously effected by temperature;the deformation of lock chamber side wall develops towards the centerline of chamber and the deformations of southern and northern chambers are basically the same.
出处
《人民长江》
北大核心
2010年第20期16-18,共3页
Yangtze River
关键词
变形监测
正垂线
倒垂线
引张线
船闸
三峡水利枢纽
deformation monitoring
V-perpendicular line
inverted perpendicular line
tension wires
ship lock
TGP
