Recently, the People’s Government of Hubei Province announced the Decision on Science and Technology Award in 2019, and the achievements of the Research on Key Technologies for Heavy-load Trenchless Horizontal Directional Drilling Rig in the Whole Life Cycle of our School won the second prize for science and technology progress of Hubei Province. The project was completed by Prof. Wen Guojun’s team and Wuxi DRILLTO Construction Machinery Co., Ltd., and the participants included Wang Yudan, Yu Feng Wu Chuan, Mei Shuang, Jia Shaokuan, Wang Wei, Zhao Quan, Chen Guoqiang, Xu Linhong, etc. The project has conducted in-depth research on key technical problems in the whole life cycle of heavy-load trenchless drilling rig, such as design and manufacturing, guided construction, monitoring decision-making and after-sales training. After more than 10 years of research, it has achieved a number of innovative achievements: took the lead in the industry to realize the full 3-D digital design of parts and complete machine of the trenchless drilling rig, realized “what you want is what you get”, and solved the problem that the design theory of heavy-load trenchless drilling rig was immature and too dependent on experience; proposed the intelligent direction control algorithm of variable step drilling depth interval to solve the problem that it was difficult to accurately guide long-distance directional drilling, and developed the intelligent guidance system based on machine vision to realize precision oriented intelligent control decision-making; realized the real-time detection of drilling condition parameters while drilling, and applied the remote monitoring to trenchless drilling rig industry, to solve the difficulty that the implicit problems could not be found and solved on construction site in time, and realized remote auxiliary decision-making and active maintenance; took the lead in realizing virtual training in the industry, released three training versions: desktop type, virtual reality combination type and helmet type, to solve the problem of time-consuming and labor-intensive training of heavy-load trenchless drilling rigs with great safety risks.
Representative achievements of the program include: 35 authorized invention patents and utility model patents, 15 published academic papers, 10 registered software copyrights, etc. The research results filled in a number of technical gaps in China, and have been popularized and applied in trenchless drilling rig manufacturing enterprises and trenchless engineering construction enterprises: relying on the program, Wuxi DRILLTO Construction Machinery Co., Ltd. developed the first set of ZT-400 drilling rig, which promoted the sharp price reduction of similar products abroad; the products are exported to more than 20 countries, realizing a total sales volume of 869 million Yuan; completed more than 500 major trenchless projects, greatly reduced the maintenance costs and training costs, and achieved significant economic and social benefits, which made great contributions to the development and progress of the drilling rig industry of China.