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Modern Mining ›› 2024, Vol. 40 ›› Issue (02): 210-213.

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Research on Deformation Control Technology of Roadway Surrounding Rock
under Fast Excavation Disturbance

Aiming at the deformation and control of roadway surrounding rock under the disturbance of
fast excavation in Huangling No. 1 Coal Mine,the distribution and evolution characteristics of horizontal
stress and abutment stress of surrounding rock were analyzed by means of field investigation,monitoring and
theoretical calculation on the basis of clarifying the disturbance of fast excavation in 632 return airway.The
height of natural balance arch of 632 return airway is 1.048 m.The support measures combining temporary
support and permanent support are proposed. The combined support of bolt+anchor cable beam+metal mesh
is adopted in the roof of 632 return airway,and the combined support of bolt+plastic steel mesh is adopted
in the two sides.With the help of in-situ monitoring technology,the feasibility of surrounding rock control
scheme is verified,and the deformation of roadway surrounding rock under fast excavation disturbance is
controlled.
  

  1. No. 1Coal Mine of Huangling Mining Company,Shaanxi Coal and Chemical Industry Group Co.,Ltd.

  • Online:2024-02-18 Published:2024-08-14

Abstract:

Aiming at the deformation and control of roadway surrounding rock under the disturbance of
fast excavation in Huangling No. 1 Coal Mine,the distribution and evolution characteristics of horizontal
stress and abutment stress of surrounding rock were analyzed by means of field investigation,monitoring and
theoretical calculation on the basis of clarifying the disturbance of fast excavation in 632 return airway.The
height of natural balance arch of 632 return airway is 1.048 m.The support measures combining temporary
support and permanent support are proposed. The combined support of bolt+anchor cable beam+metal mesh
is adopted in the roof of 632 return airway,and the combined support of bolt+plastic steel mesh is adopted
in the two sides.With the help of in-situ monitoring technology,the feasibility of surrounding rock control
scheme is verified,and the deformation of roadway surrounding rock under fast excavation disturbance is
controlled.

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