Geotechnical Engineering


1.Introduction to disciplines and majors

Geotechnical engineering, as a secondary discipline of civil engineering, is a subject whose geotechnical utilization, transformation and renovation are the research objects. The main research content involves civil engineering, water conservancy, transportation and environmental engineering and other geotechnical engineering and scientific issues. Including: geotechnical basic mechanical model, geotechnical engineering properties, geotechnical engineering design methods and theories, geotechnical engineering construction technology and management, and test analysis technology, etc., focusing on the research and application of geotechnical testing technology and analysis theory. The discipline involves civil engineering, railway, transportation, water conservancy and hydropower, urban construction, engineering geology, mining engineering and other engineering fields.

Recipients of a master's degree in engineering in this discipline should master solid and broad aspects of engineering geology and hydrogeological evaluation, geotechnical engineering design, geotechnical mechanics and geotechnical engineering support, geotechnical engineering construction and management, environmental geotechnical engineering, and computer applications. In-depth expertise in basic theories and systems, in-depth understanding of the status quo, frontiers and development trends of the discipline, able to apply modern scientific theories and methods, experimental techniques and methods, and computer technology to independently complete significant scientific research or engineering design And make creative achievements. Able to use two foreign languages to read professional books and periodicals, one of which can achieve four sessions of listening, speaking, reading and writing.

2. Geotechnical engineering research direction

(1) Basic theory of rock and soil mechanics and its engineering application

Mainly study the strength theory of rock and soil, constitutive model and optimization design method of geotechnical engineering. To study the law of deformation, displacement and destruction of underground caverns, workshops, stopes, tunnels, shafts, high-rise building foundations, bridge foundations and slope engineering in geotechnical engineering, through field monitoring, laboratory Methods such as simulation and computer numerical analysis provide scientific basis for engineering design and construction, optimization of engineering design, and guarantee of production and construction safety.

(2) Geotechnical engineering stability analysis and control technology

Mainly study the stability of geotechnical engineering and its control technology. Through on-site monitoring, physical simulation and numerical calculation, study the influence of various factors on the stability of geotechnical engineering, study the stability control technology in line with the geotechnical mechanical characteristics, especially study the new technology and new technology of anchor-shotcrete support, grouting reinforcement The application of Austrian law in geotechnical engineering, study the action mechanism of geotechnical reinforcement and the determination of reasonable parameters.

(3) Measurement theory and technology of geotechnical stress and deformation

The stress and deformation states and their distribution rules are the most basic content of all geotechnical engineering stability. Stress and strain are important means to understand the stress and deformation states and their distribution in geotechnical engineering. The research focus in this direction is on the following two aspects:

Ground stress measurement theory and technology. Study the principles and methods of in-situ stress measurement, especially for the systematic performance of the most widely used stress relief method and hydraulic fracturing method in discontinuous, heterogeneous, heterogeneous and nonlinear rock masses Experiment and research. Develop practical measurement and analysis techniques and instruments to improve the measurement accuracy and reliability of the stress relief method and hydraulic fracturing method under complex rock mass and geological conditions. At the same time, develop new geostress measurement theory and technology.

Rock mass engineering stress and deformation monitoring technology. Study reliable and practical geotechnical engineering deformation and stress monitoring technologies, instruments and systems. Research the theory and technology of back analysis of initial mechanical conditions and properties of rock mass based on deformation and stress measurement data.

(4) Numerical analysis of geotechnical engineering

This research direction mainly studies the application of various numerical analysis methods, including finite element method, boundary element method, discrete element method, discontinuous deformation analysis method, etc. in geotechnical engineering. The focus is on applying the above methods to reasonably and accurately simulate and analyze and solve practical problems in geotechnical engineering. The talents required to be trained must have a solid foundation of mathematics and mechanics, be familiar with the basic principles and methods of numerical analysis, and continue to develop existing analytical theories and technologies to make them more practical and more accurate. It should also have the ability to compile utility software.

(5) Physical and mechanical properties of rock and rock mass

This research direction is based on solid mechanics, using new achievements in fracture mechanics, damage mechanics and rheological mechanics to study the mechanical properties of rocks and rock masses.

Main contents include: mechanical properties of intact rock, stress-strain relationship of rock, rock failure type and failure mechanism, rock strength criterion; mechanical properties of jointed rock mass, influence of structure on rock strength and deformation; rock rheology, rock And rheological properties of rock masses. According to the results of field test and laboratory test, the constitutive model of rock and rock mass is established by using relevant mechanics theory, probability statistics, fuzzy mathematics, grey theory, artificial intelligence theory and uncertainty analysis theory.

(6) Soil dynamics and rock dynamics

Mainly study the geotechnical dynamic characteristics, dynamic test technology, foundation vibration and seismic performance of geotechnical structures, the effect of impact load on geotechnical soil and the effects of stress, strain, displacement, cracks and damage caused in geotechnical body. Impact load refers to the explosion and high-speed collision load where the external load changes rapidly with time. In engineering, it mainly refers to the practical problems related to geotechnical dynamics, such as pile foundation engineering, underground excavation engineering, rock drilling, rock breaking, rock burst and rock burst.

(7) Environmental geotechnical engineering and foundation treatment

Theoretical research on optimal design of deep foundation pit supporting structure, research on underground engineering construction monitoring technology and safety prediction method, deformation characteristics and treatment methods of soft soil foundation, soil dynamic performance and dynamic reinforcement mechanism, geotechnical engineering issues closely related to human environment Wait.