China's first national major science and technology infrastructure in earthquake engineering, the Large-Scale Earthquake Engineering Simulation Research Facility, has been established at Tianjin University. This facility is currently the world's largest and most advanced earthquake simulation research facility, critically important for ensuring the safety of major civil, hydraulic, marine, and transportation engineering projects.

At the core of the facility are the large-scale underground earthquake simulation shaking table and the underwater shaking table array. The underwater shaking table array not only simulates seismic motions at different locations but also replicates water-related environments such as river currents, sea currents, and waves. This capability provides an experimental environment for "mega-projects" in marine environments such as cross-sea bridges, underwater tunnels, hydraulic dams, and offshore wind farms, facilitating their construction.

China HK Power has equipped the actuators' hydraulic systems of the earthquake simulation shaking table and underwater shaking table array with 12 sets of large-scale oil-water cooling equipment. These units utilize siphon principles for self-priming of water pumps and employ cooling water from an underground reservoir to maintain stable and safe operation of the hydraulic systems under varying heat generation conditions.