From January 8 to 10, 2021, the National Tunnel Boring Technology and Shield TBM Intelligent Manufacturing Technology Innovation Exchange and Observation Conference was successfully held in Changsha. The theme of this technical innovation exchange and observation conference was "Practicing Three Transformations, Developing Intelligent Equipment, Promoting Intelligent Construction". Chairman Chen Xuehua was invited to attend and delivered a keynote speech.


　　The conference was hosted by the China Urban Construction Civil Engineering Science and Technology Research Association, and co-organized by Guangzhou Jintu Geotechnical Engineering Technology Co., Ltd., Changsha Rail Transit Group Co., Ltd., Sunward Intelligent Equipment Co., Ltd., China Railway Engineering Equipment Group Co., Ltd., Changsha Zhongtian Traffic Rock Drilling Technology Service Co., Ltd., China Railway 11th Bureau Wuhan Heavy Equipment Co., Ltd., Shandong University, State Key Laboratory of Shield Machine and Boring Technology, and other units. The conference received strong support from Tunnel Website, Central South University, Hunan University, Wuhan University, Guangzhou Rail Transit Shield Technology Research Institute, and China Railway 18th Bureau Tunnel Engineering Co., Ltd.

　　Chief Engineer Xu Shangnong of Changsha Rail Transit Group Co., Ltd., Professor Chen Kui of Shenzhen University and expert of China Railway, Dr. Chen Xuehua, Chairman of Guangzhou Jintu Geotechnical Engineering Technology Co., Ltd., and Deputy Director Zhou Jianjun of State Key Laboratory of Shield Machine and Boring Technology attended the opening ceremony. More than 100 experts and scholars from all over the country attended the conference on site. Due to the impact of the epidemic, more than 1,000 people participated in the conference online by watching the live broadcast.


　　Chairman Chen delivered a keynote report titled "Rectangular Pipe Jacking 'Green, Safe, Efficient' Construction of Underground Engineering" at the conference. He mentioned that with the development of China's urban construction and technology, the utilization rate of underground space is gradually increasing. The application of rectangular pipe jacking technology plays an important role in improving land utilization, alleviating ground traffic, reducing environmental pollution, and beautifying urban landscapes, reflecting "green city, low-carbon city". Underground engineering construction often adopts open-cut method, shallow cover cut-and-cover method, and pipe jacking method. The open-cut method requires closing traffic, relocating pipelines, excavating and transporting earthwork, and has high costs for foundation pit support and water stop; the shallow cover cut-and-cover method has slow construction speed, low safety, and uncontrollable settlement. Therefore, under such conditions, especially for underpass node construction, there is an urgent need to adopt "green, safe, environmentally friendly" non-excavation rectangular jacking technology.


　　This technical innovation exchange and observation conference focused on current hot topics such as tunnel boring technology and shield TBM intelligent manufacturing. It was an academic event held to discuss how to promote the "Three Transformations", further enhance China's comprehensive national strength and international competitiveness, and strengthen academic exchanges in shield design, construction, manufacturing, and scientific research.

　　In the field of underground space development, as a benchmark enterprise, Guangzhou Jintu carries forward the Luban craftsman spirit, continuously innovates, and makes its modest contribution as a private enterprise to China's underground space development and construction, boosting China's underground engineering industry to glory!