US Patent Issued to Ocean University of China on Dec. 2 for "Model test device and method for curtain grouting and excavation of tunnels in high-temperature, water-rich and weak strata" (Chinese Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,488,706, issued on Dec. 2, was assigned to Ocean University of China (Shandong, China).

"Model test device and method for curtain grouting and excavation of tunnels in high-temperature, water-rich and weak strata" was invented by Fei Sha (Shandong, China), Shijiu Gu (Shandong, China), Xuguang Chen (Shandong, China), Mingshuai Xi (Shandong, China), Hao Kong (Shandong, China), Rui Fan (Shandong, China), Meng Bu (Shandong, China), Liming Chen (Shandong, China) and Hang Li (Shandong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "This invention discloses a model test device and method for curtain grouting and excavation of tunnels in high-temperature, ...