注浆封堵技术在采空区地表裂缝中的应用研究  

Research on Application of Grouting Filling Technology in Goaf Surface Cracks

作　　者：王俊华 WANG Junhua(Jinwan Hulonggou Coal Industry Co.,Ltd.,Datong Coal Mine Group,Shuozhou,Shanxi 038300,China)

机构地区：[1]大同煤矿集团挖金湾虎龙沟煤业有限公司,山西朔州038300

出　　处：《自动化应用》2024年第17期248-250,共3页Automation Application

摘　　要：为减少因采空区地表裂缝而引发的系列地质灾害,提出采用注浆充填法的治理技术,通过设计9组不同充填材料的参数对比试验,得到最佳注浆配比方案。该方案如下:电石泥和脱硫石膏的质量比为1:1,粉煤灰和水泥掺入量分别为80%和4%,水灰比为1,并自然养护。经验证,采用该注浆方案后,现场试块的抗压强度及冻融后强度损失率均满足要求,封堵效果好。In order to reduce the series of geological disasters caused by surface cracks in goaf,the grouting filling method is proposed as a treatment technology.Through comparing the parameters of 9 different filling materials,the optimal grouting ratio scheme is obtained.The scheme is as follows:The mass ratio of calcium carbide mud and desulfurization gypsum is 1:1,the dosage of fly ash and cement is 80%and 4%respectively,the water cement ratio is 1,and natural curing is carried out.After verification,the compressive strength and freeze-thaw strength loss rate of the on-site test block meet the requirements after adopting this grouting scheme,and the sealing effect is good.

关 键 词：注浆封堵技术 地表裂缝 注浆方案 抗压强度 

分 类 号：TE327[石油与天然气工程—油气田开发工程]