跨孔地震波CT技术在煤矿多层采空区注浆效果检测中的应用  

Application of cross-hole seismic wave CT technology in the detection of grouting effect in multi-layer goaf in coal mine

作　　者：王苏龙 WANG Sulong(Beijing China Coal Mine Engineering Company Limited,Beijing 100013,China;National Engineering Research Center of Deep Shaft Construction,Beijing 100013,China)

机构地区：[1]北京中煤矿山工程有限公司,北京100013 [2]矿山深井建设技术国家工程研究中心,北京100013

出　　处：《建井技术》2024年第6期14-18,24,共6页Mine Construction Technology

摘　　要：煤矿采空区造成地面建筑物建成后的下沉、变形等形式的破坏,易产生安全隐患。为确保地面建筑的使用安全,需要对采空区进行治理。因采空区注浆的隐蔽性,注浆效果检测是确保治理质量的关键,仅依靠单孔参数的检测,无法整体、客观地评价采空区注浆效果。采用跨孔地震波CT技术对检测区域剖面进行波速测定,并与单孔检测参数进行对比分析,使采空区注浆效果的评价更加全面、合理、准确。通过在塔山煤矿采空区治理注浆效果检测中的实际应用,证明该技术在注浆效果检测中具有一定的准确性,值得推广应用。The gob of coal mine may cause subsidence,deformation and other damage after the completion of the ground building,which is easy to produce security risks.In order to ensure the safety of the ground building,it is necessary to control the gob.Because of the hidden nature of the gob grouting,the grouting effect detection is the key to ensure the quality of the treatment.It is impossible to evaluate the grouting effect of the gob as a whole and objectively only by the detection of single hole parameters.The cross-hole seismic wave CT technique is used to measure the wave velocity of the section in the detection area,and it is compared with the single hole detection parameter,so that the evaluation of the grouting effect in the gob is more comprehensive,reasonable and accurate.The practical application in the test of grouting effect of goaf control in Tashan Coal Mine proves that this technology has certain accuracy in the test of grouting effect and is worthy of popularization and application.

关 键 词：多层采空区 注浆 跨孔 地震波CT 效果检测 

分 类 号：P631.3[天文地球—地质矿产勘探]