采矿与安全工程学报2015，Vol.32Issue(6)：984-988,5.DOI:10.13545/j.cnki.jmse.2015.06.019
大段面冻结斜井表土段井壁冻结压力实测分析
Measurement research of freezing pressure for large cross section mine inclined freezing shaft sinking in alluvium
摘要
Abstract
Taking freezing main inclined shaft on big cross section under construction in Gucheng Coalmine, Lu'an Group as the research object, the evolution of the frozen pressure and a large number of in-suit measured data have been obtained through the earth pressure cell during the construction process. And the freezing pressure evolution laws of the roof, floor and two sides during the construc-tion process have been analyzed. Firstly, the freezing pressure changes showed obvious volatility in the course of construction,affected by freezing temperature, hydration heat and thawing time and so on. Secondly,the inclined shaft stress shows a general linear growth trend with the increase of buried depth, despite some differences of spatial distribution. Thirdly, after analyzing the measured and calculated value of earth pressure during the inclined shaft construction, the current design theory is observed to have shortcomings and needs improving. The findings have important reference and guiding value with data and and experience obtained for the inclined frozen wall and inclined shaft design and construction for the similar alluvium condition and freezing condition.关键词
冻结压力/冻结壁/现场实测/表土段/斜井井壁Key words
freezing pressure/frozen wall/in-suit measurement/alluvium/inclined shaft分类
矿业与冶金引用本文复制引用
王建州,周国庆,高润飞,樊耀广,魏国军,鲍强,王涛,周檀君..大段面冻结斜井表土段井壁冻结压力实测分析[J].采矿与安全工程学报,2015,32(6):984-988,5.基金项目
国家重点基础研究发展计划(973)项目(2012CB026103) （973）
国家高技术研究发展计划(863)项目(2012AA06A401) （863）
国家自然科学基金项目(51104146,41271096) （51104146,41271096）
中央高校基本科研业务费专项资金项目(2010QNA46) （2010QNA46）
