富水砂卵石地层超细水泥注浆模型试验与工程应用研究  

Experiment and Engineering Application Research of Ultra-Fine Cement Grouting Model in Water-Rich Sandy Gravel Stratum

作　　者：刘光程[1] 

机构地区：[1]淮南职业技术学院,安徽淮南232001

出　　处：《重庆科技学院学报（自然科学版）》2016年第4期25-28,76,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：安徽高校自然科学重点项目"深井软岩及动压影响下硐室群围岩控制与支护关键技术研究"(KJ2015A346);安徽省高校省级优秀青年人才基金项目"深井软岩巷道底臌综合治理关键技术研究"(2012SQRL257);淮南职业技术学院自然科学基金项目"深井高应力大变形软岩巷道新型复合支护技术研究及应用"(HKJ14-2);2013年淮南职业技术学院精品课程"地基与基础工程"

摘　　要：通过室内模型试验进行超细水泥注浆研究,提出了富水、围岩松散等复杂条件下斜井全断面超前预注浆、地面预注浆、壁后注浆的综合处理方法。跟踪监测结果表明,注浆后围岩的稳定性和承载力大幅提高,巷道涌水及断面收敛变形的现象得到有效控制。通过工程实践发现,超细水泥注浆起到止水及加固围岩的作用,对富水巷道需不断止水的状况有所改善,达到了预期的安全性和可行性要求。Through indoor model experiment, uhrafine cement grouting research was conducted in this paper and it put forward a comprehensive treatment program of advanced pre - grouting, surface pre - grouting and wall grouting for inclined section under complex conditions, such as water- rich and surrounding rock loose. Site monitoring in- dicates stability and bearing capacity of surrounding rock after grouting have been greatly improved, and the section of roadway gushing convergence deformation has been effectively controlled. Engineering application showed fine cement grouting played a role in sealing and strengthening the surrounding rock, and could improve the condition of keeping sealing water -rich roadways. And the technology also meets the needs of safety and feasibility in construction.

关 键 词：富水砂卵石地层 超细水泥 注浆 力学指标 

分 类 号：TE256[石油与天然气工程—油气井工程]