Research on Steel Tube Confined Concrete Supports Support Technology for Soft Rock Roadway in Coal Bed Washout

Xue Bin Li; Zheng Xing Ma; Guo Lei Liu; Ming Cheng Chen; Quan Mei Zhu

doi:10.4028/www.scientific.net/AMM.121-126.3471

Paper Titles

Research on Divinable Characters of Rock Burst and Movement of Strata and Ground
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Research on Hybrid Hydraulic Excavator Test Bench
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Research and Application of NURBS Surface Modeling Technique in Computer Aided Industrial Design
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Research on Processing of Large-Size Spiral Bevel Gear CNC Machine Tools
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Research on Steel Tube Confined Concrete Supports Support Technology for Soft Rock Roadway in Coal Bed Washout
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Research on Temperature Field of Hydrostatic Thrust Bearing with Annular Cavity Multi-Pad
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Remanufacture of Die Casting Dies
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Review and Prospect of the Research of Vibration and Friction Mechanism of Machine Joint Surfaces
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Stacking Fault Substructure of Martensite in Steel
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 121-126Research on Steel Tube Confined Concrete Supports...

Research on Steel Tube Confined Concrete Supports Support Technology for Soft Rock Roadway in Coal Bed Washout

Abstract:

East auxiliary roadway of Pingshuo Mine No.3 passed through coal bed washout with the roof rock crushing, which leaded to roadway support difficulty. by experimental tests on axially loaded Φ168mm STCC (steel tube confined concrete ) short columns with different steel tube wall thickness, UBC(ultimate bearing capacity) of selected Φ168 × 7 mm steel tube confined concrete short columns was 2650 kN, support pressure was 1.16 MPa., then support scheme of Φ168 × 7 mm steel tube confined concrete supports was proposed. The result of FLAC3D simulation was that the maximum displacement of surrounding rock was 55.6mm. On-site support practice also showed that the support scheme guaranteed the stability of the roadway sounding rock

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Periodical:

Applied Mechanics and Materials (Volumes 121-126)

Pages:

3471-3476

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.121-126.3471

Citation:

Cite this paper

Online since:

October 2011

Authors:

Xue Bin Li, Zheng Xing Ma, Guo Lei Liu, Ming Cheng Chen, Quan Mei Zhu

Keywords:

Coal Bed Washout, FLAC-3D, Steel Tube Confined Concrete Supports, Ultimate Bearing Capacity

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