建筑物下伏采空区充填注浆效果综合检验技术  

Combined Examine Technique for Results of Backfill Grouting for Goaf beneath Buildings

作　　者：李光勇 李生生[3] 周禹良[3] LI Guang-yong;LI Sheng-sheng;ZHOU Yu-liang(School of Mining Engineering,China University of Mining and Technology,Xuzhou 221116,China;Tongjialiang Coal Mine,Datong Mine Corporation Co.,l,td.,Datong 037025,China;Tiandi Science and Technology Company Limited,Beijing 100013,China)

机构地区：[1]中国矿业大学矿业工程学院,江苏徐州221116 [2]大同煤矿集团有限责任公司同家梁矿,山西大同037025 [3]天地科技股份有限公司,北京100013

出　　处：《煤炭技术》2018年第10期86-88,共3页Coal Technology

基　　金：中国煤炭科工集团有限公司科技创新基金(2013QN009);天地科技股份有限公司技术创新基金(KJ-2014-BJZM-03)

摘　　要：为了对锅炉房下伏采空区地面注浆充填效果进行检验,采用钻孔取芯、钻孔电视观测结合钻孔声波测试的综合检验方法。钻孔取芯获得了浆液结石体照片;钻孔电视观测直观表明采空区残余空洞及采动裂隙被浆液充填密实;钻孔声波测试基于围岩、浆液结石体和采空区残余空洞的声波速度差异对治理区整体注浆充填效果进行评价。In order to examine the results of backfill grouting for goaf beneath a boiler room which to be construct in the future,a combined examine technique including drilling for core,borehole television and borehole acoustic wave test is utilized.Firstly,concretion of the cement-fly ash grouts is got by the drilling for core;then,a vivid picture prove the fill effect of the grout for residual void and mining fractures of the goaf directly is obtained by the borehole television.Furthermore,the entire grouting results is evaluated by borehole acoustic wave test based on the velocity gap among bedrock,concretion of the grouts and residual void and mining fractures of the goaf.

关 键 词：采空区 充填注浆 钻孔电视 钻孔声波测试 

分 类 号：TD322[矿业工程—矿井建设]