煤矿安全2025，Vol.56Issue(1)：155-163,9.DOI:10.13347/j.cnki.mkaq.20240501
西部矿区可注断层破碎带注浆加固特性试验研究
Experimental study on grouting reinforcement characteristics of groutable fault fracture zone in western mining area
摘要
Abstract
Grouting transformation of aquifer is the most direct and effective means to control sandstone water disasters in western mining areas.In order to explore the influence of different factors on the grouting reinforcement characteristics of groutable fault fracture zone in western mining area,we design groutability test,uniaxial compressive strength test and permeability test to study the influence law and results of different factors on groutability and grouting reinforcement effect under the premise of complete grout-ability.The results show that when the water cement ratio is 1.5∶1,the strength of grouting reinforcement has reached the standard of field application,and the impermeability effect is almost the same and good as that when the water cement ratio is 1∶1.When the curing age is 14 d,the strength of grouting reinforcement under the two conditions of water cement ratio of 1∶1 and 1.5∶1 reaches the standard of field application,and the impermeability effect is almost the same and good as that when the curing age is 28 d.Ac-cording to the research conclusions and field practice,the slurry with a water-cement ratio of 1.5∶1 was selected and applied to the grouting project.After grouting,the water absorption rate of each borehole was not greater than the critical value of 0.01 L/(min·m·m),and the grouting amount decreased from an average of 1 317.81 t to an average of 80.2 t.The grouting effect is obvi-ous and good,which provides a guarantee for the safe mining of the mine and the ecological protection of water resources in the western mining area.关键词
含水层改造/注浆加固/砂岩水害/水资源保护/养护龄期Key words
transformation of aquifer/grouting reinforcement/sandstone water disaster/protection of water resources/curing age分类
矿业与冶金引用本文复制引用
范铭今,陈军涛,古海龙,唐道增,韩港,张树强,李光强..西部矿区可注断层破碎带注浆加固特性试验研究[J].煤矿安全,2025,56(1):155-163,9.基金项目
国家自然科学基金资助项目(52104203) （52104203）
山东省自然科学基金资助项目(ZR2022ME140) （ZR2022ME140）
煤炭资源高效开采与洁净利用国家重点实验室资助项目(2021-CMCU-KF015) （2021-CMCU-KF015）
