摘要
Abstract
To address the low monitoring frequency and susceptibility to environmental interference associated with conventional deformation monitoring methods for aging dams,such as manual leveling and total station measurements,as well as the high cost of high-precision automated equipment,a novel structural deformation monitoring robot was introduced.An automated closed-loop monitoring system integrating"sensing-transmission-platform"functions was established at Meishan Reservoir Dam.High-density field measurements were continuously collected over 130 consecutive days at the left abutment and Arch Piers 3-14.The system was comprehensively evaluated in terms of measurement accuracy,system reliability,and practical application performance.The results showed that,under complex field conditions,the system achieved a displacement resolution of 0.1 mm,while the nominal measurement accuracy of the device ranged from 0.3 to 1.0 mm.The field monitoring data exhibited good completeness,continuity,and stability.A total of 1504 instantaneous fluctuations exceeding the predefined threshold were identified throughout the monitoring period,and subtle stage-wise deformation responses of the dam were successfully captured.The structural deformation monitoring robot effectively overcomes the limitations of conventional methods,particularly their low monitoring frequency and poor continuity,thereby providing reliable engineering evidence for the intelligent monitoring of large-scale hydraulic structures.关键词
大坝结构变形/时空演化/系统性能评估/自动化监测/监测机器人/梅山水库Key words
dam structural deformation/spatiotemporal evolution/system performance evaluation/automated monitoring/monitoring robot/Meishan Reservoir分类
建筑与水利
