采矿与安全工程学报2013，Vol.30Issue(1)：19-22,4.
大断面巷道交叉点缩面期间顶板控制技术
Roof control technology of the intersection of large section roadway during shrinking face
姜玉连 1潘军 1贺永强 1黄光俊1
作者信息
- 1. 中煤平朔集团有限公司井工二矿,山西朔州036006
- 折叠
摘要
Abstract
Based on the shrinking face project and roof support problem of intersection of roadway at fully mechanized top coal caving face in the No.2 Deep Mine of Pingshuo, the stress and displacement fields of surrounding rock of the roadway intersection are calculated and analyzed by FLAC3D three-dimensional numerical simulation software. By compared with site monitoring data, the rule of the intersection of roadway roof's variation are obtained and analyzed. The result shows that the roadway height of intersection could not be ensured in the present support condition. Therefore, the roof of intersection should be reinforced to meet the security of support. After reinforced supporting, the roof deformation has been effectively controlled, which could ensure the roadway height of intersection during shrinking face.关键词
缩面/交叉点/大断面/顶板控制/数值模拟Key words
shrinking face/ intersection/ large section/ roof control/ numerical simulation分类
矿业与冶金引用本文复制引用
姜玉连,潘军,贺永强,黄光俊..大断面巷道交叉点缩面期间顶板控制技术[J].采矿与安全工程学报,2013,30(1):19-22,4.
