Project and Monitoring Scope
Shuangjiangkou uses a 315m gravel-soil core rockfill dam. Shape arrays were installed at elevations 2,330m, 2,337m and 2,420m in the core wall and 2,337m and 2,420m in the upstream rockfill, totaling more than 1,400m for construction-stage settlement and deformation monitoring.
Selection Trials and Installation
Selection trials included repeated 4.5MPa pressure cycles and field accuracy comparisons. The sensor strings connected to concrete cover plates through universal joints. Some sections adopted an arched arrangement to increase the available settlement space.
The 4.5MPa figure describes a selection-test condition for this project. Confirm the pressure rating of the delivered product version; it is not the default rating for every RT-1010 configuration.
Acquisition and Retrieval Without Continuous Site Power
Where continuous site power and communications were unavailable, low-power loggers woke on schedule and stored readings for Bluetooth retrieval. The configuration provided construction-stage deformation records under difficult infrastructure conditions.
Related Technical Information
See the RT-1010 product information for installation arrangements, accuracy versions and pressure options, and the RT-1010, RT-1015 and RT-1020 selection guide for borehole monitoring choices. Project arrangements and test conditions in this case do not replace the monitoring design or configuration checks for another project.