王绅皓, 谢婉丽, 奚家米, 井旭. 基于GIS与BP神经网络的矿区塌陷易发性预测[J]. 煤矿安全, 2021, 52(9): 218-223,230.
    引用本文: 王绅皓, 谢婉丽, 奚家米, 井旭. 基于GIS与BP神经网络的矿区塌陷易发性预测[J]. 煤矿安全, 2021, 52(9): 218-223,230.
    WANG Shenhao, XIE Wanli, XI Jiami, JING Xu. Prediction of mine collapse risk based on GIS and BP neural network[J]. Safety in Coal Mines, 2021, 52(9): 218-223,230.
    Citation: WANG Shenhao, XIE Wanli, XI Jiami, JING Xu. Prediction of mine collapse risk based on GIS and BP neural network[J]. Safety in Coal Mines, 2021, 52(9): 218-223,230.

    基于GIS与BP神经网络的矿区塌陷易发性预测

    Prediction of mine collapse risk based on GIS and BP neural network

    • 摘要: 为了提高矿区塌陷预测的效率及简便性,提出使用神经网络算法进行分析预测。选取水文特征、地质构造、终采时间、覆岩强度、顶板跨度、开采深度、采煤高度、空间迭置层数8个致灾因子作为塌陷易发性的评价指标,并将矿区划分为4个塌陷易发性等级;利用GIS的空间分析功能对各预测数据进行栅格化;并以矿区中部及南部单元作为样本进行训练构建BP神经网络模型,余下的北部单元检验预测效果;结合GIS系统将模型输出结果图像化得到矿区的塌陷易发性分区图。结果显示:神经网络模型在训练过程中达到快速的收敛效果,预测结果和已发生的塌陷基本吻合,适合应用于初期对矿区塌陷的预测。

       

      Abstract: In order to improve the efficiency and simplicity of mining area collapse prediction, it is proposed to use neural network algorithm for analysis and prediction. Eight hazard factors including hydrological characteristics, geological structure, final mining time, overburden strata strength, roof span, mining depth, coal mining height, and number of spatially superposed layers are selected as the evaluation indicators of collapse susceptibility, and the mining area is divided into 4 classes of collapse susceptibility. The spatial analysis function of GIS is used to raster the predicted data. The central and southern units of the mining area are used as samples for training to construct a BP neural network model, and the remaining northern units are used to test the prediction effect. Combine the GIS system to image the output results of the model to obtain the zoning map of the collapse susceptibility of the mining area. The results show that the neural network model achieves a rapid convergence effect during the training process, and the prediction result is basically consistent with the collapse that has occurred, and it is suitable for initial prediction of mining area collapse.

       

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