| 千米深井软岩巷道破坏机理及支护技术研究 |
| |
| 引用本文： | 李海燕,刘端举,孙庆国,王怀新,刘玉萍.千米深井软岩巷道破坏机理及支护技术研究[J].山东大学学报(工学版),2009,39(4):112-115. |
| |
| 作者姓名： | 李海燕 刘端举 孙庆国 王怀新 刘玉萍 |
| |
| 作者单位： | 李海燕，刘玉萍： 山东大学岩土结构与工程研究中心, 山东 济南 250061;
刘端举，孙庆国，王怀新：新汶矿业集团， 山东 新泰 271211 |
| |
| 摘 要： | 基于矿井开采逐渐向深部发展,巷道围岩呈现高地压、大变形、难支护的特点,常规锚网支护已难以控制巷道围岩变形的情况.通过对华丰煤矿-1?100水平巷道破坏机理的研究,提出了采用马蹄形巷道支护断面和全封闭支护的理念,加强底板承载能力和巷道抗蠕变能力;根据千米深井巷道围岩流变特性,研究得出了围岩地压得到合理释放趋于稳定时进行永久支护的时机和距离,并在永久支护中实施锚注加固,使松散破碎岩块胶结成整体提高了围岩的内聚力和内摩擦角,使围岩由“软”变“硬”,使无支护作用的围岩体变为支护结构,同时锚注锚杆成为全长锚固锚杆,加强了围岩的加固效果,达到安全永久支护巷道的目的.
|
| 关 键 词： | 软岩巷道 破坏机理 二次支护 锚注 |
| 收稿时间： | 2009-05-20 |
Study on failure mechanism and supporting technology of soft rock roadaway in a kilometer deep mine |
| |
| LI Hai-yan,LIU Duan-ju,SUN Qing-guo,WANG Huai-xin,LIU Yu-ping.Study on failure mechanism and supporting technology of soft rock roadaway in a kilometer deep mine[J].Journal of Shandong University of Technology,2009,39(4):112-115. |
| |
| Authors: | LI Hai-yan LIU Duan-ju SUN Qing-guo WANG Huai-xin LIU Yu-ping |
| |
| Affiliation: | LI Hai-Yan, LIU Yu-Ping：Geotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, China;
LIU Duan-Ju, SUN Qing-Guo, WANG Huai-Xin： Xinwen Mining Group, Xintai 271211, China |
| |
| Abstract: | With the gradual deep exploitation of the mine,the surrounding rock mass in the roadway has such characteristics as high ground pressure,large distortion and is difficult to support,which can cause difficulties to control the distortion of surrounding rock with anchor-net support and not be able to meet the demand of safe production.By means of a study on failure mechanism of the 1100 horizontal roadway in the Huafeng coal mine,the conceptions of U-shaped supporting section and closed support were put forwa... |
| |
| Keywords: | soft rock roadway failure mechanism secondary support anchoring and grouting |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《山东大学学报(工学版)》浏览原始摘要信息 |
|
点击此处可从《山东大学学报(工学版)》下载全文 |
|
