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Li Siguang (1889-1971) was a Chinese geologist and the founder of geomechanics. The word Zhonghua is a native of Huanggang, Hubei. In his early years, he joined the League and participated in the Xinhai Revolution.

He founded geomechanics in the 20s of this century and made great contributions to geological theory. He used the viewpoint of mechanics to study the phenomenon of crustal movement, regarded various tectonic traces as the result of in-situ stress activities, established the basic concept of geomechanics of "tectonic system", provided a new method for exploring geological natural phenomena, opened up a new way for the study of crustal motion laws, created a new situation in geological science, and enjoyed a high reputation in the world. His theories have made great contributions to China's oil exploration.

For example, he used geomechanics to analyze the characteristics of geological structure in eastern China, and believed that the three subsidence zones of the New China tectonic system had a broad prospect for oil searching, which theoretically denied the theory of "China's oil poverty". The successive discoveries of Daqing, Shengli, Dagang and other oil fields confirmed his scientific foresight. In terms of geological work, he emphasized that on the basis of studying the activity of geological structures, the changes of in-situ stress were observed, and the direction was pointed out for the realization of the first forecast.

In addition, as early as the early 20s, Li Siguang visited the foothills of the Taihang Mountains, the Datong Basin, the Lushan Mountains and the Huangshan Mountains in China, and successively discovered the remains of Quaternary glaciers, which overturned the erroneous conclusion of many international glaciological authorities that there are no Quaternary glaciers in China. Li Siguang has studied in Japan and the United Kingdom, and has traveled to France, Germany and Switzerland. Before 1949, he was a professor in the Department of Geology of Peking University and the director of the Institute of Geology of the ** Research Institute.

After 1949, he served as Vice President of the Chinese Academy of Sciences, Director of the Chinese Institute of Paleontology, Member of the Department of Geosciences of the Chinese Academy of Sciences, Chairman of the China Association for Science and Technology, and Minister of Geology.

Deputy to the First, Second and Third National People's Congress, Chinese People's Political Consultative Conference.

Vice Chairman of the 2nd, 3rd and 4th National Committee, member of the 9th ** Committee of the Communist Party of China.

Li Siguang is a native of Huanggang, Hubei, and he likes to use his brain since he was a child, and often asks others questions. When he was young, Li Siguang understood a truth: Only science and technology can change China's backward appearance.

In order to accurately analyze the geological characteristics of China, Li Siguang's footprints are all over China. He braved the odds and dangers to climb mountains and mountains to measure precise data in order to analyze the structure of geological formations. He first proposed that the Qaidam Basin, the North China Plain, the Northeast Plain, the Sichuan Basin and other places should be used as the main areas for oil exploration.

Li Siguang's report encouraged people to actively search for oil.

Li Siguang personally led the team to carry out oil survey work in Xinjiang, North China, and Northeast China, and through hard work, he discovered the geological structure of oil storage in many places. Li Siguang successively discovered large oil fields such as Daqing Oilfield, Shengli Oilfield, and Dagang Oilfield. Li Siguang not only studied geology, but also founded a new discipline - geomechanics, which provided a theoretical basis for the study of the distribution of minerals and guided people to discover many precious mineral deposits such as tungsten and chromium.

Li Siguang is an outstanding geologist and a pioneer in China's geological undertakings. He has made great contributions to the socialist construction of our country, so he enjoys a high reputation.

Li Siguang has made great contributions to the motherland by studying geology in depth with a heart that has made the motherland strong, and his perseverance in scientific spirit is worthy of our study.

Li Siguang, formerly known as Li Zhonghua and Zhonggong, is a native of Huanggang, Hubei, the founder of Chinese geomechanics and one of the main leaders and founders of China's modern earth science and geology. Geomechanics, which he founded, has made important contributions to the development of China's petroleum industry. The understanding of the three subsidences of the new Chinese tectonic system and the broad prospect of oil search has opened up a prediction method combining active tectonic research and in-situ stress observation. He once brought back a gamma meter from England, which played an important role in China's later search for uranium; According to the theory of geomechanics, 211 extra-large uranium deposits were found, which made outstanding contributions to the successful development of China's atomic and hydrogen bombs.

He returned to China under the letter of appointment from Mr. Cai Yuanpei, President of Peking University, and served as a professor and head of the Department of Geology of Peking University, a member of the Senate of Peking University and the general director of the School of Science. He also established the Geological Society of China with Zhang Hongzhao, Ding Wenjiang and others, and served as the vice president of the first session.

1. Li Siguang (October 26, 1889 - April 29, 1971), the name Zhonggong, formerly known as Li Zhonghua, a native of Huanggang, Hubei, Mongolian, geologist, educator, homemaker, social activist, the founder of Chinese geomechanics, one of the main leaders and founders of China's modern earth science and geological work, the first batch of outstanding scientists after the founding of New China and the father who made outstanding contributions to the development of New China, In 2009, he was selected as one of the 100 people who moved Chinese since the founding of New China.

2. Li Siguang graduated from Osaka Higher Technical School in Japan in July 1910; In 1911, he served as the Minister of Industry of the Hubei Army; In January 1928, he was appointed as the director of the Institute of Geology of the ** Research Institute; In 1948, he was elected as an academician of the ** Research Institute; In May 1950, he was appointed Vice President of the Chinese Academy of Sciences. In April 1951, he was elected Vice Chairman of the Executive Committee of the World Association of Scientists. In September 1952, he was appointed Minister of Geology of the People's Republic of China; In 1955, he was elected as a member (academician) of the Chinese Academy of Sciences; In September 1958, he was appointed as the chairman of the China Association for Science and Technology; In April 1969, he was elected as a member of the 9th ** Committee of China; In August 1970, he served as the head of the science and education group.

3. Li Siguang founded geomechanics and made important contributions to the development of China's petroleum industry; In his early years, he had superb research on the fossils of the family and their stratigraphic significance, proposed the existence of Quaternary glaciers in eastern China, established the concepts of "geomechanics" and "tectonic system" in the new marginal disciplines, and established the school of geomechanics. This paper proposes the understanding of the broad prospect of oil prospecting in the three subsidence zones of the New China tectonic system, and creates a forecasting method that combines active tectonic research and in-situ stress observation.