Design of TBM Shield Machine with Large Slope and Small Turning Radius
Many mines in China have tried to use TBM to excavate deeper and deeper roadways underground,and have gained some practical experience.However,there are fewer studies on the construction conditions of space spiral line with large slope(≥±12°)and small turning radius(R≤150 m).The overall structure of the three mining areas of HaiShiWan Coal Mine is a southward-dipping skip-shaped or box-shaped inclination,the inclination in the eastern part of the well field,due to the influence of Fh-4,the local can be upright inverted,the central vast area,the inclination of the coal seam is relatively gentle,the east and west flanks inclination becomes steeper.Influenced by the mining area and geological structure,through the study of TBM tunneling technology in rocky tunnel with large slope and small turning radius,the technology has achieved better application effect.
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