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that morning, with the last blast of artillery, in the cheers of the workers at the scene, the supporting project of the national major scientific research project “Tianqin Project” The static laboratory realized smooth tunneling in advance. Next, the work of interior decoration and scientific research equipment admission will be carried out one after another, which is expected to be delivered to Sun Yat-sen University in January 2021. 
“Tianqin Project” cave ultra-quiet laboratory is located at Sun Yat-sen University In the Zhuhai campus, the main projects include the main body of the tunnel and connecting roads, of which the main body of the tunnel is 1108 meters long and the total area is about 24030 square meters. Peng Yonghui, project leader of the Super Static Laboratory of the China Railway Tunnel Bureau, said, “The tunnel is in the shape of a “medium”, which is different from the previous tunnel engineering. It is equivalent to a group of tunnels crisscrossing. There are 10 intersections, which There are also many types, and the entire project is more difficult to excavate.” The construction unit introduced the advanced equipment for tunnel excavation, three-arm rock-drilling trolleys, to achieve efficient tunneling, and completed the tunnel penetration in advance. 
“Tianqin Project” is led by Sun Yat-sen University and is a country Major scientific and technological infrastructure planning and construction projects mainly carry out space gravitational wave detection research and promote a series of basic physics research. The key technologies developed by it can also be used to accurately measure the earth’s gravity field and understand the earth’s water resources and mineral resources. Distribution and changes provide important scientific basis for the country to formulate major policies.
The cave ultra-quiet laboratory is one of the important ground infrastructure facilities of the “Tianqin Project”. After completion, it will become a high-precision technical instrument and equipment detection platform for the “Tianqin Project” . Peng Yonghui, the project leader of the cave ultra-quiet laboratory of China Railway Tunnel Bureau, said, “The gravitational wave research in this cave is less disturbed by the external environment, and the data obtained is more accurate and more conducive to scientific research.”
(Originally titled “National Gravity Wave Research Project Important Infrastructure Tunnel Ultra-quiet Laboratory Tunnels Completely Connected”)