DOI: 10.11799/ce201702012
Study on frost heaving pressure monitoring scheme for upper lining of auxiliary vertical shaft in Maiduoshan Coal Mine
HOU Shi-zhan
Abstract：The frost heaving pressure of the upper lining was monitored in auxiliary vertical shaft of Maiduoshan Coal Mine, so as to avoid the influence of lower lining freezing. Special frost heaving pressure measuring tube was applied, frost heaving pressure sensor was arranged in the decompression hole outside of the lining, and strain gauge on the lining surface was installed in advance. And the lining surface stress was calculated according to the stress change after stress relieving and the lining concrete elastic modulus. Through monitoring the pressure change caused by frost heaving, the safe and successful construction was ensured for auxiliary vertical shaft lining in Maiduoshan Coal Mine.
Keywords：upper liningfrost heaving pressurestrain gaugecomplete stress relief method
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 36-38,42 )