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Geotechnical and Geological Engineering

, Volume 36, Issue 4, pp 2701–2706 | Cite as

New Method of Calculation About Shallow Buried Seam Loosing Pressure

Original paper

Abstract

The traditional method for calculating the loose chamber pressure of shallow buried soil does not consider the special overburden structure of shallow buried depth, Bo Jiyan and thick unconsolidated coal seam, and even does not consider the activity law of overlying strata when the stope is under pressure. Based on the theory of elastoplastic and the theory of limit equilibrium theory, this paper presents a method to solve the loose pressure of overlying rock in shallow coal seam, the calculation method has a more rigorous mechanical basis, and the calculation results are more consistent with the actual situation, which effectively avoids the shortcomings of traditional calculation methods, and provides a new method for solving the loose pressure of overlying strata in shallow buried coal seam.

Keywords

Shallow buried seam Surrounding rock pressure Limiting equilibrium theory Terzaghi K. Formula Method of rock pillars 

Notes

Acknowledgements

This work was supported by Science and Technology Project of Deyang City (No. 2017ZZ066).

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Civil EngineeringSichuan College of Architectural TechnologyDeyangChina
  2. 2.Sichuan College of Architectural TechnologyDeyangChina

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