矿井地质灾害隐患动态融合识别框架及关键技术

Dynamic fusion-based identification framework and key technologies for mine geological hazard risks

  • 摘要: 透明矿井构建是我国煤矿智能化建设实施的关键。受矿井地质探测、多场融合识别理论与技术的限制,现有矿井地质灾害隐患识别的精度、准确度及时效性仍难以满足新时期透明矿井构建对多源地质信息数据的应用要求。在总结现有震电联合反演、井地联合反演、多波多属性联合动态反演、多源多尺度多物理场联合反演等技术发展的基础上,提出“三尺度−三精度−一个模型”的透明矿井构建思想,三尺度即矿区、采区(精度3 m)、工作面(精度0.5 m和0.1 m)三个尺度,一个模型即时空统一的透明地质模型。设计了多源异构数据管理方式,包括多源、多模态矿井数据的规范化采集、清洗、标注及湖仓一体化管理方法,为地质大模型提供了高可信度的数据支撑;提出了矿井地质灾害隐患动态识别技术框架,包括多源多场信息的实时感知与汇聚、多场地球物理数据的综合集成与处理、多场联合反演、特征构建与动态识别、预警发布、模型更新与大模型交互等5项技术内涵,通过“数据感知−数据处理−多场反演−特征构建−动态识别−反馈优化”的闭环流程实现矿井地质灾害隐患的持续感知与智能决策。系统阐述了矿井典型地质灾害隐患识别模型构建的关键技术,包括:地面地球物理多场联合反演及识别、掘进巷道随钻原位探测识别、综采面煤岩层位及结构识别、瓦斯地质识别、富水地质识别、以及扰动条件下地质构造动态识别等6类识别模型。为构建智能化、透明化、实景化的透明矿井地质云平台提供新的理论技术支撑。

     

    Abstract: The construction of transparent mines is critical to the implementation of intelligent coal mining in China. Limited by current theories and technologies of geological exploration and multi-field fusion-based identification, the precision, accuracy, and timeliness of existing mine geological hazard risk identification still cannot meet the requirements of transparent mine construction in the new era for the application of multi-source geological information data. On the basis of summarizing the development of techniques such as seismic–electrical joint inversion, borehole–surface joint inversion, multi-wave and multi-attribute joint dynamic inversion, and multi-source, multi-scale, multi-physical-field joint inversion, this paper proposes the concept of a “three-scale–three-resolution–one-model” transparent mine. The three scales refer to the mine area, the mining district (resolution of 3 m), and the working face (resolutions of 0.5 m and 0.1 m), while the “one model” refers to a transparent geological model that is unified in space and time. A multi-source heterogeneous data management scheme is designed, including standardized acquisition, cleaning, annotation, and lakehouse-based integrated management of multi-source and multi-modal mine data, providing highly reliable data support for geological large models. A dynamic identification technical framework for mine geological hazard risks is proposed, comprising five core components: real-time perception and aggregation of multi-source and multi-field information, comprehensive integration and processing of multi-field geophysical data, multi-field joint inversion, feature construction and dynamic identification, and early warning, model updating and interaction with large models. Through a closed-loop workflow of “data sensing–data processing–multi-field inversion–feature construction–dynamic identification–feedback optimization,” the framework enables continuous perception and intelligent decision-making for mine geological hazard risks. In addition, the key techniques for constructing typical mine geological hazard risk identification models are systematically elaborated, including six types of models: surface geophysical multi-field joint inversion and identification, in-situ while-drilling detection and identification in development roadways, coal–rock layering and structural identification at fully mechanized faces, gas-related geological identification, water-rich geological identification, and dynamic identification of geological structures under disturbance conditions. The study provides new theoretical and technical support for building an intelligent, transparent, and reality-based transparent mine geological cloud platform.

     

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