Application of Concrete Filled Steel Tubular Supports in the Shaft Station

Abstract:

In order to solve the issues of large deformation and difficult to support in Lu Cun coal mine-270m level shaft station, the reasons of damage to the original roadway supporting conditions have been analyzed through the field investigations. A composite supporting scheme which depend mostly on concrete-filled steel tubular (CFST) supports, spray the anchor net and surrounding rock grouting reinforcement technology as a supplement was designed. The cross-section of the supports is circular. The main steel pipe is 20^# seamless steel pipe with diameter of 194mm and wall thickness of 8mm. It is shows that the composite supports can effectively control the deformation of surrounding rock of roadway and maintain long-term stability.

• Periodical: Advanced Materials Research (Volume 1089)
• Pages: 213-218
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1089.213
• Online since: January 2015
• Authors: Hao Xie*, Feng Yin Zhang, He Guo, Bao Sen Zhang
• Keywords: Anchor Net Spray, Concrete-Filled Steel Tubular Supports, Shaft Station, Surrounding Rock Grouting

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