GENEVA, May 4 -- SOUTHEAST UNIVERSITY (No. 2, Southeast University RoadJiangning DistrictNanjing, Jiangsu 214135), 东南大学 (中国江苏省南京市江宁区东南大学路2号), NANJING MODERN MULTIMODAL TRANSPORTATION LABORATORY (No. 56 Baoshansi RoadJiangning DistrictNanjing, Jiangsu 211135), 南京现代综合交通实验室 (中国江苏省南京市江宁区宝善寺路56号) filed a patent application (PCT/CN2023/133635) for "METHOD FOR REINFORCING FROZEN SOIL FOUNDATION BY ROTARY DRILLING-PREF...