The basic theory and several major techniques in geohazard control engineering

First of all, it is necessary to clarify what the basic theoretical problem of geoengineering is. The author believes that the basic theory of geoengineering is the theory of geological control. There are two points of view in the prevention and control of geologic hazards or in the prevention and control of geologic body instability: ① load support system point of view; ② geologic body transformation point of view. The viewpoint of geoid modification is a very important one, and its basic theory is geo-cybernetics, which scientifically puts forward the technical measures to prevent and control the instability of geoid. Geological body modification is a basic part of geoengineering theory, and the balance of forces is formed by the constituents of the geological body, the structure of the geological body and the conditions of the geological environment. When one of the above three is damaged, instability may occur, which can be achieved by changing the composition, structure and environmental conditions of the geological body to achieve a new stable state.

The commonly used geological technology in geological engineering work can be summarized in the following six aspects: ① drilling technology; ② physical exploration technology: CT, electromagnetic wave chromatography, geological radar, etc.; ③ testing technology: comprehensive borehole measurement, rheological test, rigid press, etc.; ④ monitoring technology: telemetry, remote control, three-dimensional monitoring, etc.; ⑤ geological body transformation technology: grouting, anchoring, support and blocking engineering, etc.; ⑥ computer technology: numerical analysis, simulation, inverse analysis, simulation, inverse analysis, etc.; ⑥ computer technology: numerical analysis, simulation, inverse analysis, inverse analysis, inverse analysis, inverse analysis, inverse analysis, inverse analysis and inverse analysis. analysis, simulation, inverse analysis, automatic control, etc.