工作面覆岩裂隙演化测试技术发展趋势  

Development trend of test technology for overburden fracture evolution in working face

作　　者：王晓蕾 WANG Xiaolei(Department of Mining Engineering,Lüliang University,Lüliang 033001,China;Key Laboratory of Maintenance and Inspection of Coal Mine Mechanical Equipment of Lüliang,Luliang 033001,China;Luliang Engineering Research Center of Intelligent Coal Mine,Lüliang 033001,China)

机构地区：[1]吕梁学院矿业工程系,山西吕梁033001 [2]煤矿机械装备维护与检测试验吕梁市重点实验室,山西吕梁033001 [3]吕梁市智慧煤矿工程技术研究中心,山西吕梁033001

出　　处：《中国测试》2022年第5期22-30,共9页China Measurement & Test

基　　金：山西省高等学校科技创新项目(2019L0954);煤矿机械装备故障诊断与健康管理技术创新团队资助(TD201812);吕梁市平台基地建设项目(2021GCZX-1-46)。

摘　　要：我国众多矿井面临水害和瓦斯灾害的威胁。工作面回采后裂隙演化特征是矿山防治水及瓦斯治理的技术基础,对于煤矿安全生产具有重要意义。在叙述煤层开采覆岩破坏和开采覆岩裂隙演化理论的基础上,较系统地梳理相似模拟、数值模拟、钻孔电视、分段注水试验、微震监测技术五种测试方法的工艺技术及装备、测试结果、存在问题及适用条件,并对工作面覆岩裂隙演化测试技术发展趋势进行展望,指出未来数值模拟应引入新的思维和数学方法;相似模拟引入数字岩心和3D打印技术高保真进行还原;现场测试技术向动态化、实时化、智能化方向发展。Many mines in our country are facing the threat of water and gas disasters.The evolution characteristics of the fissures after the working face stoping is the technical basis of mine water prevention and gas control,and it is of great significance to coal mine safety production.Based on the description of coal seam mining overburden failure and mining overburden crack evolution theory,the process technology and equipment,test results,existing problems and applicable conditions of five test methods such as similar simulation,numerical simulation,borehole television,segmented water injection test,and microseismic monitoring technology are systematically sorted out.The development trend of overburden fracture evolution testing technology in working face is prospected,and it is pointed out that new thinking and mathematical methods should be introduced into numerical simulation in the future.Similar simulation introduces digital core and 3D printing technology with high fidelity perform restoration;on-site testing technology is developing in the direction of dynamic,real-time,and intelligent.

关 键 词：矿井工程 上覆岩层 裂隙演化 发展趋势 

分 类 号：TD712[矿业工程—矿井通风与安全] TB9[一般工业技术—计量学]