The Methods Use of the Heterogeneous Engineering-geological Conditions Diagnostic During Shield Underground Tunneling

An analysis of using modern methods of heterogeneous engineering-geological conditions diagnostic during shield underground tunneling. Measurement of technological indicators penetrations may use to diagnose address characteristics of ground array: groundwater flow and level, as well as the type of soil and its physical properties (density and specific cohesion). Level sensors and suspension data may determine the filling speed camera dirt water at different pressures of air in the chamber. This water rate, measured in a particular location and corrected to normal atmospheric pressure conditions, can be used to select special techniques of tunnel structures in the vicinity of the measurements. Excavation volume measurement to diagnose the actual situation of the underground water level and adjust modes of penetration for improving the sustainability of the face. Information exploration wells from the surface can complement the geological descriptions of excavated material from the shield, and the ratio of the allocated two lithological differences horizontal bedding can be used to define boundaries between them in the vertical face plane. To diagnose soil density determined that the amount recoverable sandy soil per cycle has a direct relationship with a significant measure of the density of sand samples. Also during the sinking of the measured torque indicators rotor can diagnose value of specific cohesion of conglomerate rocks in the mine.