Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Analysis of the Influence Law of Mining Disturbance on Roadway Stability: A Case Study
https://orcid.org/0000-0002-3695-7985
Abstract In Tangshan mine, the oversize of coal pillar in the No. 12 coal seam panel causes serious deformation of roadway and failure of supporting body. Firstly, based on the limit equilibrium theory, the size of the narrow coal pillar is set as 8 m. Then, the range of the surrounding rock loosening circle is determined by using the borehole peeping instrument. Finally, the parameters of supporting system are determined by combining the composite arch and suspension theory. Based on the $ FLAC^{3D} $ numerical simulation, the stress distribution of the surrounding rock of the roadway under the original and new support schemes is compared with the zero original rock stress. Therefore, the cross-combined support system of the “anchor bolt + anchor cable” is proposed. Two schemes are compared by measuring the surface displacement of the roadway. The comprehensive analysis shows that the combined support system of adjacent roadways in adjacent panels can more effectively control the deformation of roadway than the single support system of the original scheme.
Analysis of the Influence Law of Mining Disturbance on Roadway Stability: A Case Study
https://orcid.org/0000-0002-3695-7985
Abstract In Tangshan mine, the oversize of coal pillar in the No. 12 coal seam panel causes serious deformation of roadway and failure of supporting body. Firstly, based on the limit equilibrium theory, the size of the narrow coal pillar is set as 8 m. Then, the range of the surrounding rock loosening circle is determined by using the borehole peeping instrument. Finally, the parameters of supporting system are determined by combining the composite arch and suspension theory. Based on the $ FLAC^{3D} $ numerical simulation, the stress distribution of the surrounding rock of the roadway under the original and new support schemes is compared with the zero original rock stress. Therefore, the cross-combined support system of the “anchor bolt + anchor cable” is proposed. Two schemes are compared by measuring the surface displacement of the roadway. The comprehensive analysis shows that the combined support system of adjacent roadways in adjacent panels can more effectively control the deformation of roadway than the single support system of the original scheme.
Analysis of the Influence Law of Mining Disturbance on Roadway Stability: A Case Study
https://orcid.org/0000-0002-3695-7985
Abstract In Tangshan mine, the oversize of coal pillar in the No. 12 coal seam panel causes serious deformation of roadway and failure of supporting body. Firstly, based on the limit equilibrium theory, the size of the narrow coal pillar is set as 8 m. Then, the range of the surrounding rock loosening circle is determined by using the borehole peeping instrument. Finally, the parameters of supporting system are determined by combining the composite arch and suspension theory. Based on the $ FLAC^{3D} $ numerical simulation, the stress distribution of the surrounding rock of the roadway under the original and new support schemes is compared with the zero original rock stress. Therefore, the cross-combined support system of the “anchor bolt + anchor cable” is proposed. Two schemes are compared by measuring the surface displacement of the roadway. The comprehensive analysis shows that the combined support system of adjacent roadways in adjacent panels can more effectively control the deformation of roadway than the single support system of the original scheme.
Analysis of the Influence Law of Mining Disturbance on Roadway Stability: A Case Study
Wang, Zhi Qiang (Autor:in) / Shi, Lei (Autor:in) / Wang, Peng (Autor:in) / Wu, Chao (Autor:in)
2019
Aufsatz (Zeitschrift)
Englisch
Analysis of the Influence Law of Mining Disturbance on Roadway Stability: A Case Study
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