Construction technology and intelligent application of transparent working face model
WANG Xiaohui;LIU Zaibin;CHEN Baohui;MA Liang;GAO Yaoquan;ZHANG Dongliang;DU Yiming;LEI Xiaorong;YAN Junsheng
回采工作面模型是指导煤矿安全高效生产的重要前提,对实现煤炭精准开采和地质保障具有重要意义。特别是在复杂地质条件下,回采工作面模型若不能准确描述构造与地层之间的关系,将会影响煤矿生产过程中的采区规划、采掘工艺及生产效率等方面。以某复杂地质条件的矿井回采工作面为例,开展高精度回采工作面模型构建技术及智能化应用研究。首先,提出地层和断层的构建技术,成功解决了特殊地质现象及逆断层三维空间重值的难题。同时,引入动态更新技术实现了模型的局部动态修正,大幅提升了模型的准确性与实用性。其次,结合实时监测数据,提出智能规划截割与智能地质预测技术,能够有效提高生产决策的精准性与及时性。随后,构建了I030903回采工作面静态模型,并融入局部动态更新技术,将该动态模型应用于煤矿透明地质保障系统,取得了显著的应用效果。结果表明:该建模技术能够快速、准确地模拟任意复杂地质体,为处理地层不整合、地层尖灭、煤层分叉和断层切割等问题提供便利。经验证,模型误差值均处于0.2 m以下,且0~0.1 m范围内占整体97%。基于透明回采工作面模型的智能规划截割技术有效指导了采煤机的精准开采,而智能地质预测技术则能够在异常情况下自动生成预警信息并及时传达相关人员。该方法为煤矿智能化开采提供了技术支持和保障。
The working face model is an important prerequisite for guiding safe and efficient production in coal mines and holds significant importance for achieving precise coal mining and geological security. Especially under complex geological conditions, if the working face model cannot accurately describe the relationships between geological structures and strata, it will impact the planning of mining areas, mining and excavation processes, and production efficiency. Taking the working face of a mine under complex geological conditions as an example, this study conducts research on high-precision working face modeling technology and its intelligent application. First, a construction technology for strata and faults is proposed, successfully solving the challenges of special geological phenomena and the three-dimensional spatial recalculation of reverse faults. Additionally, dynamic updating technology is introduced to achieve local dynamic corrections of the model, significantly improving its accuracy and practicality. Secondly, by integrating real-time monitoring data, intelligent planning for cutting and intelligent geological prediction technologies are proposed, which effectively enhance the precision and timeliness of production decision-making. Subsequently, a static model of the I030903 working face was constructed, incorporating local dynamic updating capabilities. This dynamic model was applied to the transparent geological security system for coal mines, achieving significant application results. The results indicate that the modeling technology can quickly and accurately simulate any complex geological body, providing convenience for handling issues such as stratigraphic unconformities, strata pinching out, coal seam bifurcation, and fault cutting. Verified data show that model errors are within 0.2 m, with 97% of errors falling within the 0-0.1 m range. The intelligent cutting planning technology, based on the transparent working face model, effectively guided the precise coal extraction by the shearer, while the intelligent geological prediction technology could automatically generate warning information in abnormal situations and promptly communicate it to relevant personnel. The research results demonstrate the advancement and feasibility of this method, providing solid technical support and assurance for intelligent coal mining.
working face model;dynamic updating;intelligence;precision mining;geological security
主办单位:煤炭科学研究总院有限公司 中国煤炭学会学术期刊工作委员会