地下工程细水泥与普通水泥灌浆对比试验研究  

Comparative experimental study on grouting of fine cement and ordinary cement in underground engineering

作　　者：荆少东[1,2] 丁长栋 贾春磊[2] 张宜虎[3] 朱瑜劼 Jing Shaodong;Ding Changdong;Jia Chunlei;Zhang Yihu;Zhu Yujie(Engineering Department of SINOPEC,Beijing 100728,China;SINOPEC Petroleum Engineering Design Corporation,Dongying 257100,Shandong,China;Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources,Changjiang River Scientific Research Institute,Wuhan 430010,Hubei,China)

机构地区：[1]中国石油化工集团公司工程部,北京100728 [2]中石化石油工程设计有限公司,山东东营257100 [3]长江科学院水利部岩土力学与工程重点实验室,湖北武汉430010

出　　处：《岩土工程技术》2025年第2期305-310,共6页Geotechnical Engineering Technique

基　　金：国家自然科学基金(52309123,U2340226);中央级公益性科研院所基本科研业务费资助项目(CKSF2023310/YT,CKSF2023319/YT);岩土力学与工程安全重点实验室开放基金课题(No.SKLGME023013)。

摘　　要：水封洞库、储气库、引水隧洞等地下工程对区域渗流场控制均有严格要求,灌浆是控制工程区域渗流场的重要方式。不同地质条件下的岩体可灌性不同,对灌浆材料的粒径敏感性也不同,需要开展相关试验论证,为工程施工提供科学依据。依托某水封洞库灌浆施工,通过开展超细水泥、湿磨细水泥与普通水泥灌浆对比试验,研究不同类型灌浆材料在该工程中的适用性。试验结果表明:当岩体透水率较大时,超细水泥、湿磨细水泥与普通水泥三种灌浆材料渗控效果差异不明显,相同岩体透水率条件下,采用不同材料灌浆,单位耗灰量总体一致;灌浆压力增大,灌浆孔的单位耗灰量显著增加,灌浆实施效果显著提升;当岩体透水率很小,采用超细水泥或湿磨细水泥能够进一步降低围岩渗水量。因此,在依托工程中无需大范围采用超细水泥和湿磨细水泥进行灌浆,在普通水泥可灌性不强的特殊情况下,建议采用超细水泥和湿磨细水泥灌浆,同时合理调节灌浆压力,以显著改善灌浆效果。Underground projects such as water-sealed caverns,gas storages,and diversion tunnels have strict requirements for the control of regional seepage fields.Grouting is an important way to control the seepage field in the engineering area.The groutabil-ity under different geological conditions is different,and the sensitivity to the particle size of grouting material is different.It is neces-sary to carry out relevant experimental demonstrations to provide a scientific basis for engineering construction.Based on the grouting construction of a water-sealed cavern,and by conducting comparative experiments of ultra-fine cement,wet grinding fine cement,and ordinary cement grouting,the applicability of different types of grouting materials was studied in the project.The test results show that when the rock permeability is high,there is no obvious difference in the seepage control effect of the three grouting materials.Under the condition of the same permeability of rock mass,different materials were used for grouting,and the unit ash consumption was gen-erally the same.With the increase in grouting pressure,the unit ash consumption of the grouting hole increased significantly,and the ef-fect of grouting was significantly improved.When the rock permeability is very low,using ultra-fine cement or wet-grinding fine ce-ment can further reduce the seepage of the surrounding rock.Therefore,there is no need to use ultra-fine cement and wet grinding fine cement for grouting on a large scale in this project.In special cases where the groutability of ordinary cement is not good,it is recom-mended to use ultra-fine cement and wet-ground fine cement and to reasonably adjust the grouting pressure to significantly improve the grouting effect.

关 键 词：地下工程 灌浆试验 普通水泥 超细水泥 湿磨细水泥 

分 类 号：TV41[水利工程—水工结构工程]