Research of Bearing Mechanism of Double Support Structure of Deep Soft Rock Roadway

Feng Jie Zhang; Pan Liu; Xiang Rui Meng; Zhao Ning Gao

doi:10.4028/www.scientific.net/AMR.734-737.606

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 734-737Research of Bearing Mechanism of Double Support...

Research of Bearing Mechanism of Double Support Structure of Deep Soft Rock Roadway

Abstract:

the stabilization of the rock support structure is the key to the safety and stability in the deep soft rock roadway, According to the bearing characteristics of surrounding rock, this paper puts forward the definition of double bearing structure, using FLAC3D numerical simulation software and theory of mechanics analyses Bearing Mechanism of Double Support Structure. The research shows: Excavation of soft rock roadway, the vertical strain and horizontal strain of the surrounding rock of roadway has wave, the surround rock appearing obvious deformation and displacement of roadway roof and floor in 3M, and the roadside appearing extrusion failure in the range of 2m. The roadway is more stable as the figure of the plastic radius is smaller, the same to outer bearing structure’s boundary and the width of outer bearing structure and plastic zone.

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Periodical:

Advanced Materials Research (Volumes 734-737)

Pages:

606-613

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.734-737.606

Citation:

Cite this paper

Online since:

August 2013

Authors:

Feng Jie Zhang, Pan Liu, Xiang Rui Meng, Zhao Ning Gao

Keywords:

Double Support Structure, Horizontal Strain, Numerical Simulation, Plastic Zone, Soft Rock Roadway, Stable

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