Academician He Manchao: Drilling the "Deep" "passers -by"

Academician He Manchao. Correspondent Photo

Hunan Daily All Media Reporter Ye Zhu

【Academician Business Card】

He Manchao, academician of the Chinese Academy of Sciences, academicians of the Russian Academy of Mining Sciences, academicians of the Argentine Academy of Engineering, experts from the rock mechanics of mining engineering, and director of the National Key Laboratory of the National Key Laboratory of Deep Rock and Lower and Underground Engineering of China University of Mining and Technology. It is mainly engaged in the theory and technical research of major deformation disaster control in mines. It proposes the theoretical system of "slow variable" and "mutant" major deformation disasters, and has developed a number of large deformation disaster mechanism experimental systems. The development of a new material (cable) with a constant resistance of the negative perpaling pine (NPR) effect is successfully applied to the actual project of the project and achieved huge economic and social benefits.

On June 18, Henan Lingbao NPR test base.

On the same day, He Manchao hurried to the field base in the hinterland of Funiu Mountain.

Behind the metal trimmed half -frame glasses, the 66 -year -old mining engineering rock body mechanics experts have deep eyes and thoughtful.

Before the age of 50, He Manchao was in mines across the country over half a year, and often went down to a deep well of a kilometer to conduct on -site tests. He keeps in mind the emphasis on responsibility. "The research work we do is closely related to the working environment of the miners and even life."

In recent years, He Manchao has led the team to propose a new mining method -the 110/N00 construction method (coal -free pillar self -lane technology), which is an original innovation technology with independent intellectual property rights in my country. Compared with the traditional 121 method, this method can increase the coal collection rate from about 60%to nearly 100%, and it can greatly improve the safety of mining and the ecological protection of mining. The construction method has been applied to more than 500 coal mines across the country, and its economic and social benefits are very significant. It is also suitable for mining of non -coal mines. It is called "the third technical change in the mining field".

Hunan has excellent geological conditions, abundant mineral resources, many advantageous minerals, and relatively concentrated distribution. He Manchao suggested: "In the future, in the mining mining, Hunan can promote this more resource -saving, safe and efficient coal -free column self -lane technology." In recent years, he has led the team with our province in science and technology, talent training, equipment research and development, etc. Relevant cooperation has been carried out. Among them, the research results of the "deep well thermal damage and mine thermal energy use" were successfully applied in Zhouyuanshan Coal Mine and other mines in our province, which provided important technical support for the mining of deep coal resources in Hunan. During the interchange with the rock body of the mine, it is often facing danger of landslides and collapse accidents. He Manchao led the team to study major underground engineering disasters such as rock explosion, impact pressure, and large deformation of soft rocks, which cracked one after another.

"Mining is the baby you took away in nature. The tunnel was taken away by the rock body. If you do not give compensation, people will be angry, which will cause collapse, rock explosion, tunnel deformation, etc." He Manchao will have a complex problem. The explanation is easy to understand. "This kind of compensation is not something we can pay after buying two pounds of cucumbers, so we proposed to use new materials for compensation."

Driven by the national strategy, the construction of transportation infrastructure in the central and western regions is rising on a large scale. In particular, the terrain and geological conditions in the western region of my country are extremely complicated. The number of tunnel construction is large, technical requirements, and the great world of construction difficulties. For example, the Sichuan -Tibet Railway has nearly a thousand kilometers of "deep buried super long" tunnels. He Manchao found in the inspection and practice that in the past, the Pushi Law that was commonly used by foreign researchers and commonly used by stress compensation and the new Olympic Fa with low stress compensation, in the Sichuan -Tibet Railway "Water and soil are not convinced" in the ultra -long tunnel project.

As a result, he led the team to "right medicine" and proposed the excavation compensation method last year, which is suitable for deep excavation in large deformation rock body. It is a high -stress compensation support technology targeting the original rock stress. This technology has been well applied in the large -span road tunnel under the complex geological conditions such as the Muzhailing Tunnel, the Changning Tunnel, and the Baiyi Tunnel.

Facing the country's major needs, He Manchao, who is "rushing", is exhausted, and the original intention of being drunk at the "deep" research has never changed.

[Responsible editor: Lu Wei]

[Source: Hunan Daily · New Hunan Client]

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