Academicians and big names gathered, and the exhibition continued to be exciting. On May 20th, the 2nd Xiangjiang Forum on Underground Engineering Technology and Equipment was held in Changsha International Conference Center. At the foot of Lushan Mountain and on the banks of the Xiangjiang River, well-known academicians and experts from the field of underground engineering at home and abroad gathered in Changsha, the star city, to go to the industry event and seek common development of the industry.

This forum is sponsored by the Underwater Tunnel Engineering Technology Branch of the Chinese Society of Rock Mechanics and Engineering, the Rail Transit Engineering Branch of the Chinese Railway Society, the Rock Fragmentation Professional Committee of the Chinese Society of Rock Mechanics and Engineering, and the Hunan Railway Society. The Hunan Provincial Key Laboratory of Underground Engineering Equipment, the Hunan Provincial Underground Tunneling Equipment Engineering Technology Research Center, and the China Railway Construction Underground Engineering Equipment Engineering Laboratory are co-organized.

Sha Mingyuan, Executive General Manager of Operation Management Department of China Railway Construction Co., Ltd. presided over the morning forum

With the expansion of development space and breakthroughs in technological innovation, human society is facing an urgent need for the development of more underground space, and marching into the depths of the earth is also a major technological strategy of our country. Preliminary research on projects such as deep space laboratory, ultra-long-distance sea-crossing tunnel, high-density urban underground pipe network, ultra-large-scale underground energy storage space, deep geothermal energy development, and the west route project of the South-to-North Water Diversion Project is becoming more and more perfect. The implementation of these major underground projects , Not only brings many new engineering problems and technical challenges, but also provides more opportunities for the incubation of major innovations in the field of underground engineering technology and equipment and the development of the industry.

Cheng Yongliang, Deputy Secretary of the Party Committee and General Manager of China Railway Construction Heavy Industry, delivered a speech and delivered a theme report on "Discussion on New Technology of Underground Engineering Equipment" at the forum

The forum focused on major tunnel engineering design and construction, intelligent tunnel construction, research and development and application of new underground engineering equipment, equipment digitization and intelligence, new materials and new construction methods for underground space construction, and invited well-known experts and scholars in the field of underground engineering at home and abroad to discuss together Major technical problems and development trends facing the development of the underground space industry.

Professor Guo Zhibiao of China University of Mining and Technology made a keynote report on "Mechanical Properties and Application of New NPR Steel Materials"

Yang Huayong, academician of the Chinese Academy of Engineering, made a keynote report on "Some Explorations in the Intelligentization of Full-face Tunnel Driving Equipment"

Li Guoliang, deputy chief engineer of China Railway First Survey and Design Institute Group Co., Ltd., made a theme report on "TBM equipment selection and equipment for deep-buried super-long tunnels"

Zhong Changping, director of Guangzhou Metro Research Institute, made a theme report on "Key Techniques for Shield Construction in Composite Strata with Water-rich Karst Development"

Wang Haitao, deputy chief engineer of Xinjiang Yili River Basin Development and Construction Administration, and Han Xiaoliang, secretary of the general party branch of the Marketing Center of China Water Resources and Hydropower Third Engineering Bureau Co., Ltd., presided over the first part of the afternoon forum

Qin Pengxiang, Director of the Technology Department of Huaneng Tibet Yarlung Zangbo Hydropower Development Investment Co., Ltd., made a keynote report on "Key Techniques for Shield Construction in Composite Strata with Water-rich Karst Development"

Wang Yanjun, Chief Engineer of Sichuan-Tibet Railway Headquarters of China Railway Construction Co., Ltd., made a theme report on "Problems Facing TBM Construction and Solutions"

Li Dongfeng, chief engineer of the Third Engineering Bureau of China Water Resources and Hydropower Co., Ltd., made a keynote report on "Key Techniques for TBM Construction of Long Tunnels with Ultra-Large Buried Depth and Complicated Geology"

Chai Yongmo, consultant of China Railway Southwest Academy of Sciences, made a theme report on "Key Technologies for TBM Excavation of Inclined Shafts and Heading Tunnels in Small Diameter Tunnels"

Zhang Yuelin, deputy chief engineer of China Water Northern Survey, Design and Research Co., Ltd., made a theme report on "Integrated Prevention and Control Technology for Open TBM Crossing High-Buried and Complex Geological Tunnel Sections"

Zeng Shaoyi, deputy director of the TBM Management Center of China Railway Eighteenth Bureau Group Co., Ltd., made a keynote report on "Advanced Treatment Technology for TBM Construction"

Professor Zhou Zilong of Central South University made a keynote report on "High-stress Hard Rock Tunneling and Excavation Technology"

Liao Hongyan, Deputy Chief Engineer of Guangzhou Metro Group Co., Ltd., and Han Bing, Equipment Director of China Railway Construction South China Construction Co., Ltd. presided over the second part of the afternoon forum

Luo Shijin, Chief Engineer of the Yongzhou Railway Headquarters Project, made a keynote report on "Key Technologies for the Construction of Jintang Subsea Tunnel on Yongzhou Railway"

Xu Guanghua, Director of the Shield Center of Guangdong Hydropower Second Bureau Co., Ltd., made a keynote report on "Shield Tunneling Ultra-high Pressure Compressive Operation Technology"

Professor Wang Shuying of Central South University made a keynote report on "Improvement Mechanism and Technical Application of Shield Tunneling Muck

Peng Chunlei, Chairman of Hunan Hongyu Engineering Group Co., Ltd., made a keynote report on "Chain Knife Cutting of Underground Diaphragm Walls and New Technology of Pulsating Grouting for Seepage Prevention and Reinforcement"

At the forum, sixteen experts with wonderful speeches and unique insights built a platform for everyone to generate insights and trigger in-depth thinking, presenting an ideological feast of underground engineering technology and equipment, and cohesively promote the transformation and upgrading of the industry and the future development. Has gained wisdom and contributed strength. Editor/He Yuting