Jinfeng | Bihai Cangwu, thousands of miles away

During the Beijing Winter Olympics in 2022, 1050M high -Chengtangba, which supported the sources of the Snowfield Snow in the Yanqing Division, attracted attention. The maximum dam height of this dang dam and 77m in length of the dam. With the technical support of the Jinfeng team of Tsinghua University, it was poured from Shoucang concrete to the ceiling of Tangba, which lasted only 140 days. As the original technology of China, its advantages such as security and environmental protection and construction have been highly evaluated by all parties. Behind this technology, there are actually poetic stories.

In 2003, Jinfeng opened his brain with his brother An Xuehui, who returned to China, to combine the traditional Chinese stone masonry dam and advanced concrete combinations.

In the past 20 years, Jinfeng led the team to study in stacked stone concrete research. Completed the whole process from concept innovation to basic research, from engineering application to comprehensive practice, from Chinese standards to international standards. In 2021, the technical bulletin of "Design and Practice of Stacks of Stacks of Stacks" was officially released, and the International Dam Commission was born in the first 100 years of international technical standards with Chinese original technology as the core. This historic breakthrough has greatly enhanced China's international discourse in the core field of dam workers.

▲ Jinfeng

Introduction -digestion and absorption -re -innovation

In 1966, Jin Feng was born in Guizhou. There are many mountains and rivers here, and the national culture is diverse. It has bred Guizhou people's bold, optimistic, and inclusive personality characteristics. In 1982, the 16 -year -old Jinfeng was admitted to the Department of Water Conservancy of Tsinghua University. After graduating from undergraduate in 1987, he followed Professor Zhang Chuhan (elected as an academician of the Chinese Academy of Sciences in 2001). In the research team, Professor Zhang encouraged students to actively innovate and created an academic space of equal and freedom. Jin Feng grew rapidly in such an environment, daring and persistent innovation.

In the early 1990s, Dr. Jinfeng graduated. As an academic secretary of Academician Zhang Guangdou in Water Conservancy, Mr. Zhang accompanied Mr. Zhang to guide major water conservancy and hydropower engineering construction. In the meantime, Mr. Zhang Guangdou taught himself: China must take the technological development path of "introduction -digestion and absorption -re -innovation", cultivate China's own technical personnel, and solve the real problems in combination with actual projects. Mr. Zhang's teachings have benefited Jin Feng, and it has strengthened the idea of ​​taking the road of innovation and working hard on core technologies.

Chinese technology goes to the world

At the end of the 1990s, Jin Fengli invited An Xuehui, the younger brother, who was an associate professor at Tokyo University in Japan at that time, returned to China and cooperated in invention of stacked stone concrete. In 2005, an accidental opportunity, the Jinfeng team built the world's first stacked stone concrete dam in a certain part of the Beijing Military Region. Although the dam is only 14.5m high, the first successful case not only gave the team confidence, but also opened the door to gradually recognized by the engineering community.

结合后续的工程实践，团队开展了堆石混凝土充填性、综合力学性能等一系列的室内和现场试验研究，试验结果和工程实践均表明：堆石混凝土具有良好的综合性能，并在简化工艺、 Breakthrough progress has been made to cancel the performance of temperature control and improvement of material cracking, solving the core difficulties of temperature -controlled cracks in the field of concrete dam in the field of concrete dam.

Relevant results were recommended by 11 academicians such as Pan Jiazheng and Ma Hongqi, and have been appraised and promoted by the National Ministry of Development and Reform Commission, the Ministry of Water Resources, and the Ministry of Education. The design and construction technology industry standards for stacking stone concrete have also been promulgated.

With the technical support of the Jinfeng team, more than 200 stacked stone concrete projects were promoted and applied to more than 20 provinces, municipalities, and autonomous regions in the motherland, and more than 100 stacked stones concrete dams were built. In 2017, the stack of stone concrete dams won the second prize of the National Technology Invention Award.

The technical bulletin of the International Dam Commission of the International Dam Commission of the International Expert Leaded by Jinfeng as the first international technical standards with Chinese original technology as the core of the Chinese original technology as the core, promote the new dam type. Overseas engineering and other overseas engineering such as Angorani Hydropower Station was successfully applied.

Rogers, chairman of the International Dam Commission, pointed out: "The stacked stone concrete dam invented by Professor Jinfeng University in Tsinghua University has been in the past 20 years. , Environmentally friendly, promote social development, and build a safe and reliable dam. "

On the basis of stacking stone concrete technology, Jinfeng has successively invented new technologies and new processes such as underwater self -protection concrete, structured glue, self -current control grouting, TBM tube films from dense backfilling. In 2020, the "key technology and equipment of the double shield anchor TBM under complex geological conditions" won the first prize of the China Dam Society Technology Invention Award (ranked first). At present, the energy industry standard, "Technical Guidance of Underwater Self -Professional Protective Concrete Technology", has been approved, and will be officially promulgated in 2022.

▲ Jinfeng made a technical explanation at the dam construction site

The road to tackling is endless

From putting forward a new concept, clarifying technical route, indoor verification, on -site trials, theoretical research, to practical application, summary experience, development of supporting equipment, writing technical standards, etc., from scratch, from low dams to high dams, stacked stacked concrete concrete, stacked stacked concrete In fact, technology has gone through a very difficult process and constantly facing new challenges.

Jin Feng clearly remembers, "When doing the first project of the Beijing Military Region, Tsinghua University had no large -scale test venues. I took the team to Nanhua University for verification test. The start of the work was caught up to the summer. The temperature was high during the day. Stay up late to pour. After the pouring is completed, everyone is hungry, looking around the street on the street late at night. " But in such a difficult environment, the team has cultivated the first batch of stacked stone concrete technicians. In addition, "Dam Construction has strict technical standards. Before the technical standards of stacked stone concrete, each project needs to be continuously demonstrated to obtain the trust of the engineering community. We do engineering and summarize engineering experience. Carry out basic research while training a team. "

In the boring and repeated experiments, Jinfeng led the team to continuously solve various technical problems. At present, dozens of graduate students have conducted research, and dozens of engineers support design and construction units on site. Relying on this team, they are accumulating data, accumulating experience, discovering problems, and solving problems every day. Jin Feng believes that the research of workmanship must unite talents and maintain a stable team, so that everyone can continue to improve and continue to innovate.

Open team grows fast

"The innovation team I understand should be a loose and open organization."

Jin Feng learned from Academician Zhang Chuhan that the team should be open. The team has core members, but there is no team border. From the closer cooperation to partial cooperation, to loose cooperation, to general cooperation, it is a model of cooperation with a large number of researchers like a gradient spectrum. Relying on this concept and model, Jin Feng united talents as much as possible and strengthened cooperation to allow everyone to conduct research for common goals.

In addition to the study of stacked stacked concrete, the static power analysis of concrete dams and Gaoba earthquake resistance is a direction that Jinfeng began to study since the PhD. His research revealed the real workmanship and earthquake resistance of high concrete dams. Engineering measures, establish a performance -based high -dam resistance evaluation method system, and overcome several technical difficulties in the construction of 300M ultra -high dams.

The "Research on the Dynamic and Static Simulation Model of the Great Dam -Foundation -Library Water System" he participated in the 1999 National Natural Science Award of the National Natural Science Award (ranked third); "Won the first prize of the Science and Technology Progress Award of Excellent Achievement Award in the 2011 High School (ranking first); the" high dam static static overload damage mechanism and safety evaluation method "he participated in the 2012 National Science and Technology Progress Award (ranking No. 1 two). Related results provide important technical support for the solution of several key technical problems in the high -concrete dam of high -concrete dams in the western earthquake zone.

▲ The scientific research team of the aquatic work vibration group of Tsinghua University

Cultivate innovative talents and international talents

The ancients said, read thousands of books, and walk thousands of miles. Jinfeng is a member of the Air China Lifetime Platinum Card. The footprints are all over the autonomous regions of the motherland in the mainland of the motherland. They also went abroad and inspected many water conservancy and hydropower projects. I often live in high -end hotels in the first day, and the suit led the academic conference. The next day, I flew to a remote and backward hometown.

"My teachers and predecessors glanced all over the customs of customs when they were young. They maintained their exercise habits for a long time. At the age of 80 or ninety, they were still mentally energetic and open -minded. This is the gift of this professional gift." With the love of the water conservancy cause, Jinfeng's whole body body Investment in engineering talents. He serves as deputy chairman of the teaching and guidance committee of the Ministry of Education. As a famous teacher in Beijing, he hosted a national boutique course for "aquatic architecture".

In teaching, Jin Feng often encourages students to go out of the campus, facing the blue sea and twilight, and broaden their horizons. He said, "By the age of me, innovation is gradually failing, bringing students, teams, work, and lack of surgery. The director of the design also participated in the actual engineering design, and after many failures, accumulated experience. Therefore, you can share these with the younger generation and let them take less detours and grow faster. "

Today, Jinfeng's research team has trained nearly 200 outstanding technology and management talents for my country's water conservancy and hydropower industry. Among the 30 outstanding youth hydropower technology workers awarded the National Hydropower British Awards, 5 have graduated from this team.

"When technology is going out in China, a large number of high -level talents that can carry out international exchanges are needed. They will speak foreign languages, understand technology, be good at communication, and understand international situations."

It is indeed happy to be recognized internationally internationally, but Jinfeng reminded that it is only the only Chinese core technical standard of nearly 200 international technical standards of the International Dam Commission. Hydropower people still have a long and long way to go.

- END -