冲击地压风险源能量场立体成像智能判识预警技术  

Intelligent identification and early warning technology of rockburst risk by energy field stereo imaging

作　　者：郭伟 刘心强 王桂峰[2] 李二海 温颖远 静涛 桑成辛 GUO Wei;LIU Xin-qiang;WANG Gui-feng;LI Er-hai;WEN Ying-yuan;JING Tao;SANG Cheng-xin(Shaanxi Yonglong Energy Development and Construction Co.,Ltd.,Baoji 721000,China;National Key Laboratory of Fine Coal Exploration and Intelligent Development,School of Mining Engineering,China University of Mining and Technology,Xuzhou 221116,China;China Energy Ningxia Coal Industry Co.,Ltd.,Yinchuan 751410,China;College of Geology and Mineral Engineering,Xinjiang University,Urumqi 830047,China)

机构地区：[1]陕西永陇能源开发建设有限责任公司,陕西宝鸡721000 [2]中国矿业大学矿业工程学院煤炭精细勘探与智能开发全国重点实验室,江苏徐州221116 [3]国家能源集团宁夏煤业有限责任公司,宁夏银川751410 [4]新疆大学地质与矿业工程学院,新疆乌鲁木齐830047

出　　处：《煤炭科技》2023年第4期95-102,共8页Coal Science & Technology Magazine

基　　金：国家重点研发计划(2020YFB1314203,2020YFB1314204);国家自然科学基金(51504248,52274098);江苏省自然科学基金项目(BK20140194);江苏省重点研发计划(BE2015040);江苏高校优势学科建设工程资助项目(SZBF2011-6-B35)。

摘　　要：针对冲击地压监测还存在难以识别危险区域及其发展趋势,不能针对性采取卸压、解危措施而导致事故频发的问题,开发能量场立体成像冲击风险源智能判识预警技术及软件系统,功能包括:采动能量场2D和3D成像、覆岩关键层智能识别与运动规律监测、地质风险区智能划分和数据驱动联合预警、各个巷道及煤壁的冲击危险状态定量表征、采掘工作面安全进尺预测等。研究表明:不同尺度岩体临近主破裂前的变形局部化现象是冲击发生前的重要前兆信息。采动能量场预警系统,通过成像2D、3D动态云图及危险性指数、微震密集度等时间域监测,实现了在三维空间精准识别冲击危险状态、危险区域及发展趋势,可形成冲击地压风险源靶向判识、卸压措施动态调整的防冲关键技术;采掘过程中实现靶向精准监测(危险区和危险状态),针对性提前卸压或降低开采强度,干涉冲击地压的孕育过程,从而避免灾害发生。成果破解了复杂多因素致灾环境下冲击地压调控难题,实现了冲击地压监测预警和防控技术创新,为风险源超前识别、实时预警和解危措施效果评估提供了关键技术及装备,为冲击矿井安全高效开采提供了保障。In view of the problem that rock burst monitoring is still difficult to identify dangerous areas and their development trends,and that the targeted pressure relief and danger relief measures cannot be taken,which leads to frequent accidents,the intelligent identification and early warning technology and software system for energy field three-dimensional imaging of impact risk sources are developed.Its functions include:2D and 3D imaging of energy recovery field,intelligent identification and movement law monitoring of key strata of overburden,intelligent division of geological risk areas and data driven joint early warning quantitative characterization of the impact hazard status of each roadway and coal wall,and prediction of the safe footage of the mining face.The research shows that the deformation localization phenomenon of rock masses at different scales before the main fracture is an important precursor information before the occurrence of rockbursts.The early warning system of mining energy field,through imaging 2D and 3D dynamic cloud images and time domain monitoring such as risk index and microseismic intensity,has realized accurate identification of impact hazard status,hazardous area and development trend in 3D space,and can form key anti scour technologies for target identification of rock burst risk sources and dynamic adjustment of pressure relief measures.In the process of excavation,targeted and accurate monitoring(dangerous area and dangerous state)is realized,and targeted pressure relief or reduction of mining intensity is carried out in advance to interfere with the incubation process of rock burst,so as to avoid disasters.The results solved the problem of rock burst regulation under the complex multi factor disaster environment,realized the innovation of rock burst monitoring,early warning and prevention and control technology,provided key technology and equipment for the advance identification of risk sources,real-time early warning and the effect evaluation of risk relief measures,and provi

关 键 词：冲击地压 能量场 靶向监测 动态防冲 

分 类 号：P631[天文地球—地质矿产勘探]