矿产保护与利用Issue(1)：29-33,5.DOI:10.13779/j.cnki.issn1001-0076.2017.01.005
急倾斜矿体采空区岩移规律相似模拟试验研究
Similar Simulation Experiment on Goaf Rock Displacement of Steeply Inclined Orebody
摘要
Abstract
According to occurrence characteristics and goaf area features of iron ore deposits in East Hebei Province , the similar simulation tests were conducted to analyze the deformation and failure laws of surrounding rock in goaf area .The resluts showed that with the increase of displacement difference between two sides of the goaf , the stress balance of surrounding rock was gradually bro-ken.It could be concluded there were three stages of displacement changes , including a rapid in-crease , a slow increase and another rapid increase .But the slow increase stage lasted the longest time.The hanging surrounding rock subsided toward the goaf area , while the footwall surrounding rock subsided downward vertically .The subsiding displacement showed a decreasing variation tend-ency layer by layer .The study provided a significant reference for effective mining of steeply in-clined hard-rock.关键词
相似模拟试验/VIC-3D观测/围岩/急倾斜矿体Key words
similarity simulation test/VIC-3D observation/surrounding rock/steeply inclined orebody分类
矿业与冶金引用本文复制引用
刘永亮,孙光华,叶洪涛,赵坤,胡亚飞..急倾斜矿体采空区岩移规律相似模拟试验研究[J].矿产保护与利用,2017,(1):29-33,5.基金项目
国家级大学生创新训练计划项目(201410081019) （201410081019）
河北自然科学基金项目(E2014209093) （E2014209093）
河北省自然科学基金项目(E2016209224) （E2016209224）
河北省唐山市科技局项目(12140208A-11) （12140208A-11）
