Mining engineering:
Mining Engineering Science and Technology Department of Chongqing University was established in 1935, which is one of the earliest mining engineering disciplines in China universities. Since the adjustment of colleges and universities in China in the early 1950s, the development direction of this discipline is mainly the mining of layered solid deposits, with emphasis on underground coal mining and coal seam gas drainage. In China, it took the lead in scientific research on mine gas disasters, and established its own unique theoretical system of coal and gas outburst mechanism and its prevention theory and method. Since 196 1 began to train graduate students majoring in mining engineering, it has successively obtained four professional master's degree authorization points in mining engineering, (mine) engineering mechanics, mineral processing, safety technology and engineering, a first-class doctoral degree authorization point in mining engineering, an engineering master's degree authorization point in mining engineering and safety engineering, and a postdoctoral mobile station in mining engineering. The two disciplines of mining engineering were also rated as 1992 key disciplines in Sichuan province. 1997 entered the ranks of national "2 1 1 project" key discipline construction, and entered the ranks of national "985 project" key discipline platform construction in 2005. Relying on the discipline of mining engineering, the Key Laboratory of Southwest Resources Development and Environmental Disaster Control Engineering was established in 2000, the National and Local Joint Engineering Laboratory of Complex Gas Coal Seam Mining was established in 2009, and the State Key Laboratory of Coal Mine Disaster Dynamics and Control was established on 201/kloc-0. In recent years, through the construction of the national "2 1 1 Engineering" key discipline and the national "985 Project" scientific and technological innovation platform, the mining engineering discipline has developed into a comprehensive discipline through interdisciplinary, infiltration and integration, and a strong scientific research team has been engaged in basic scientific research in the field of coal mine power disasters and control for a long time. A unique research system has been formed in four aspects: geological representation and fluid dynamics of coal mine dynamic disasters, coal and rock engineering disaster dynamics, coal mine dynamic disaster control theory and new technology, and coal mine safety mining evaluation theory and method. Innovative achievements have been made in the basic theory and frontier research of mining engineering, and it has become the only important base for high-level personnel training and applied basic research in the fields of resource development and environmental disaster control engineering in southwest China recognized by the Ministry of Education.
This discipline has carried out a series of innovative research work in geological representation and fluid dynamics of coal mine dynamic disasters, dynamics of coal and rock engineering disasters, theory and new technology of coal mine dynamic disaster control, theory and method of coal mine safety mining evaluation, etc., including: (1) In terms of the law of coal mine coalbed methane enrichment and migration, it has revealed the law of coal mine coalbed methane enrichment and migration. The calculation method of coal seam gas permeability under geostress field, geothermal field and geoelectric field and the equation of coal seam gas seepage under the joint action of the three fields are determined, and the theory and new prediction method of deep gas occurrence, migration and emission in coal mining are put forward, which provides theoretical basis and technical guarantee for improving mine gas drainage rate. (2) In the aspect of coal mine dynamic disaster mechanism and prediction, based on the mechanical viewpoint of coal and gas outburst mechanism founded by Academician Xian, the simulation experimental device of coal and gas outburst and the triaxial servo seepage device of gas-bearing coal are independently developed, and the basic mechanical models such as gas-bearing coal thermal-fluid-solid coupling model, gas-bearing coal elastic-plastic damage constitutive model, coal rock fracture failure criterion and so on are established, and the theory and method of coal and gas outburst prediction are established. (3) In terms of the theory and new technology of dynamic disaster control in mines and coal mines, the technology of gas extraction by short-distance protective layer mining is implemented, and the physical method of enhancing gas extraction by electro-osmosis and acoustic vibration method is studied. The technology of high-pressure water jet assisted drilling is applied to gas extraction in low-permeability soft coal seams for the first time, which explores a new way to highlight the major safety engineering problems of gas extraction and disaster control in coal mines.
The discipline undertakes 466 scientific research projects (including 278 vertical projects), with a total research funding of about 1.9 1 billion yuan (including vertical funding of 1. 1 billion yuan), including: innovative groups of the National Natural Science Foundation of China 1 one, and national 973860. Won 3 second prizes of national scientific and technological progress, 7 first prizes of provincial and ministerial level scientific and technological progress, and the second and third prizes of provincial and ministerial level 10; Published academic papers 1024, including SCI 105 and EI 25 1; Apply for national patents 124, including 63 authorized invention patents, 32 public invention patents and 29 authorized utility model patents; Published 8 monographs.
Safety science and engineering:
Chongqing University 1935 established the Department of Mining and Metallurgy, which is one of the earliest universities in China to offer safety science and engineering-related disciplines, and the only university in Southwest China with the right to award undergraduate, master and doctoral degrees in safety engineering. After more than 70 years of construction and development, great progress has been made. In 2003, it was authorized by the first-class doctor's degree in mining engineering, the second-class doctor's degree in safety technology and engineering and its corresponding master's degree, and the first batch of first-class doctor's degrees in safety science and engineering on 201kloc-0, and the master's degree in safety engineering in 2004. In 2000, the Ministry of Education approved the construction of the Key Laboratory of Southwest Resources Development and Environmental Disaster Control Project, in 2009, the National and Local Joint Engineering Laboratory of Gas Extraction in Complex Gas Layers, and in 201/kloc-0, the National Key Laboratory of Coal Mine Disaster Dynamics and Control, and it was equipped with postdoctoral mobile stations for mining engineering (including safety technology and engineering). 1997 entered the national "2 1 1 engineering" key discipline construction ranks, and entered in 2005.