采矿与安全工程学报Issue(3)：356-362,7.DOI:10.13545/j.cnki.jmse.2015.03.002
肥城煤田奥灰顶部注浆加固可行性分析
Feasibility analysis of grouting reinforcement of Ordovician top in Feicheng coalfield
摘要
Abstract
In view that drainage for decreasing water pressure was useless to guarantee safe mining threatened by water inrush from Ordovician limestone in Feicheng coalfield, the feasibility study of grouting reinforcement of Ordovician top was carried out.Based on the statistics of exploratory boring data, coal mine drilling construction, X-ray diffraction of limestone samples, and microscopic thin sec-tion analysis, the macro and micro characteristics of Karst fissure in the Ordovician top of Feicheng coalfield were obtained.The result shows that the optimal depth for grouting reconstruction in Feicheng coalfield is about 20 meters below Ordovician top.Taking LW101002 in Caozhuang coal mine as test object, the grouting reinforcement project for Ordovician top was carried out.The conclusion validity is proved by the comparison of geophysical exploration and drilling before and after grouting.Practice proves that safety mining on the aquifer with high-pressure can be achieved by grouting reinforcement of Ordovician top.关键词
奥灰/岩溶裂隙/注浆加固/突水Key words
Ordovician limestone/Karst fissure/grouting reinforcement/water inrush分类
天文与地球科学引用本文复制引用
施龙青,邱梅,牛超,韩进,季小凯..肥城煤田奥灰顶部注浆加固可行性分析[J].采矿与安全工程学报,2015,(3):356-362,7.基金项目
教育部高等学校博士学科点专项科研基金项目(20133718110004)；青岛经济技术开发区重点科技发展计划项目(2013-1-62)；山东科技大学科研创新团队支持计划项目(2012KYTD101)；山东科技大学研究生科技创新基金项目(YC140103) （20133718110004）
