| 基于FLAC3D的沿空留巷巷道底板变形规律分析 |
| |
| 引用本文： | 赵国芳.基于FLAC3D的沿空留巷巷道底板变形规律分析[J].中州煤炭,2020,0(3):152-155. |
| |
| 作者姓名： | 赵国芳 |
| |
| 作者单位： | （山西晋城无烟煤矿业集团有限责任公司 寺河煤矿，山西 晋城 048205） |
| |
| 摘 要： | 为了研究沿空留巷巷道底板变形规律，理论计算了沿空留巷底板变形，主要包括弹塑性变形产生的底鼓量、扩容产生的底鼓量、流变产生的底鼓量以及遇水产生的底鼓量；然后采用FLAC3D数值模拟软件，分析了不同采动位置处沿空留巷底板的应力分布、沿空留巷巷道塑性区变形规律。采用“十”字交叉法对一次回采前超前影响期巷道围岩变形情况进行了分析。
|
| 关 键 词： | 沿空留巷 巷道底板变形 理论计算 底鼓量 3D' target='_blank'>FLAC3D “十”字交叉法 |
Analysis of deformation law of floor in gob-side entry retaining based on FLAC^3D |
| |
| Zhao Guofang.Analysis of deformation law of floor in gob-side entry retaining based on FLAC^3D[J].Zhongzhou Coal,2020,0(3):152-155. |
| |
| Authors: | Zhao Guofang |
| |
| Affiliation: | （Sihe Coal Mine，Shanxi Jincheng Anthracite Coal Mining Group Co.，Ltd.，Jincheng 048205，China） |
| |
| Abstract: | In order to study deformation law of roadway floor along goaf,the deformation of roadway floor along goaf was calculated theoretically,including floor heave caused by elastic-plastic deformation,the floor heave caused by expansion,the floor heave caused by rheology and the floor heave caused by water.Then FLAC^3D numerical simulation software was used to analyze stress distribution of the floor of gob side entry at different mining positions and deformation law of plastic zone of gob side entry.The cross-bonded was used to analyze deformation of surrounding rock in roadway before mining. |
| |
| Keywords: | gob-side entry retaining deformation of roadway floor theoretical calculation floor heave volume FLAC^3D cross-bonded |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《中州煤炭》浏览原始摘要信息 |
|
点击此处可从《中州煤炭》下载全文 |
