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远距离输送地面注浆技术应用 被引量:2

Application of long-distance conveying ground grouting technology
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摘要 针对传统井下注浆加固工艺采用注浆泵在施工现场就近注浆,受水泥运输和注浆泵泵送能力限制,注浆加固具有严重的滞后性,运输成本高,严重影响支护效果的问题,冀中股份邢东矿采用地面制浆、管路输送、井下打眼注浆的远距离输送地面注浆技术,将制浆与注浆分离,采用重力给压的方式实现远距离浆液输送及施工地点注浆给压。实践表明,该技术将注浆工期由传统注浆方式的50 d缩短至4 d,提高了注浆效率,确保了巷道围岩稳定性,对钢管混凝土支架的稳定性起到了辅助作用,为解决深井围岩注浆加固的运输问题提供了借鉴。 In the traditional underground grouting reinforcement process,grouting pump was used to grout near the construction site.Due to the limitation of pumping capacity of cement transportation and grouting pump,grouting reinforcement with serious hysteresis and high transportation cost,seriously affected the supporting effect.Xingdong Mine adopted ground grouting,pipeline transportation,and long-distance conveying ground grouting technology for underground grouting,separating pulping and grouting,and using gravity to achieve long-distance slurry transport.Practice showed that the technology shortened the grouting period from 50 d to 4 d in the traditional grouting mode,which improved the grouting efficiency,ensured the stability of the surrounding rock of the roadway,and played an auxiliary role in the stability of the concrete-filled steel tube supports,providing reference for the transportation problem of grouting reinforcement in deep well surrounding rock.
作者 汪隆靖 孙建 吴俊 Wang Longjing;Sun Jian;Wu Jun(Luhe Coal Industry Corporation Ltd.,Lanhua Group,Jincheng 048114,China;Xingdong Mine,Jizhong Energy Corporation Ltd.,Xingtai 054001,China)
出处 《煤炭与化工》 CAS 2019年第1期12-15,共4页 Coal and Chemical Industry
关键词 远距离输送 壁后注浆 围岩加固 long distance transportation post-grouting surrounding rock reinforcement
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