Abstract: In China, the construction of 300 m high concrete face slab rockfill dams is in progress. The monitoring system must be upgraded to adapt to higher dams than ever. This paper summarizes the monitoring technology used on 200 m high concrete face slab rockfill dams in China, and conducts special studies on the improvement of main monitoring technology for 300 m high dams. New monitoring technology should be adopted in construction of 300 m high concrete face slab rockfill dams. And, by taking the advantages of “digital dams”, the monitoring results should be used to instruct construction to enhance the construction quality.

Key words: 300 m high concrete face slab rockfill dam, safety monitoring, settlement, horizontal displacement, new technology, instructing construction

摘要： 中国混凝土面板堆石坝正在向300 m级坝高突破发展。坝高的突破必然导致安全监测系统升级。通过总结200 m面板坝安全监测施工经验，提出了适用于300 m级面板坝的改进措施。300 m级面板坝安全监测系统应积极引用新型监测技术，并通过“数字化”大坝平台充分利用监测指导施工的工程效益。

关键词: 300 m级高面板坝, 安全监测, 沉降, 水平位移, 新型技术, 指导施工