铁道标准设计Issue(9)：15-18,4.
含水率对采空区顶板稳定影响研究
Influence Research on Goaf Roof Stability of Different Water Content
梁鑫 1程谦恭 2杨晓云1
作者信息
- 1. 西南交通大学地球科学与环境工程学院,成都610031
- 2. 广西工学院土木建筑工程系,广西柳州 545006
- 折叠
摘要
Abstract
The paper focuses on the research on the stability of goaf roof with different water content by FLAC3D software. Roof span is the most dominative factor affecting the stability, so four span valves are used here. The maximum of vertical displacement was taken to evaluate the roof stability. The test results prove that there is a critical value on roof stability caused by water content. Rocks' density and strength are different in different water content conditions. The maximum ground surface vertical displacement under the condition of different water content in the same span are no different, but the extent of ground surface overall settlement increases with the increase of water content, and the surface vertical displacement also increases with the span increase. Roof vertical displacement is linear relationship with the span and roof thickness under the condition of the same water content and same roof strength parameters.关键词
采空区/含水率/顶板稳定Key words
goaf/water content/roof stability分类
矿业与冶金引用本文复制引用
梁鑫,程谦恭,杨晓云..含水率对采空区顶板稳定影响研究[J].铁道标准设计,2012,(9):15-18,4.
