煤炭工程 ›› 2014, Vol. 46 ›› Issue (12): 84-86.doi: 10.11799/ce201412028

• 研究探讨 • 上一篇    下一篇

基于Monte Carlo方法改进的BP神经网络对回采工作面瓦斯涌出量预测

魏引尚1,刘云飞2   

  1. 1. 西安科技大学
    2. 中国五环工程有限公司
  • 收稿日期:2013-12-30 修回日期:2014-02-28 出版日期:2014-12-12 发布日期:2014-12-10
  • 通讯作者: 刘云飞 E-mail:1611815644@qq.com

To Study on Forecasting of Mine Gas Emission Based on The Monte Carlo method improved BP Neural Net

  • Received:2013-12-30 Revised:2014-02-28 Online:2014-12-12 Published:2014-12-10

摘要:

首先构建和训练以煤层埋藏深度、煤层厚度、煤层瓦斯含量、工作面煤层与邻近煤层距离、工作面推进距离、工作面产量为输入变量,回采工作面绝对瓦斯涌出量为输出变量的BP神经网络模型。然后采用Monte Carlo方法通过对6组输入变量的随机抽样来预判各自的发展趋势并对输入变量随时间变化的行为进行模拟,将模拟结果作为BP神经网络输入层节点值,代入训练好的网络,输出值即为下一生产周期回采面绝对瓦斯涌出量的预测值。结果显示,该预测精度较高,能很好的指导生产矿井的瓦斯治理工作。

关键词: BP网络, Monte Carlo方法, 瓦斯涌出量预测

Abstract:

The first, a BP net is built and trained with six input variables of burial depth of coal seam coal seam thickness gas content the distance of coal working face and adjacent coal seam daily advance distance average daily output and the absolute Gas emission as output variables of the neural network model. Then the Monte Carlo method is tried to predict the development trends and the input variables change with time behavior simulation by random sampling of 6 groups input variables, the simulation results are used as the input layer node, then the output value is the forecast of next production cycle Gas emission. The results showed that this prediction method has a high precision and this prediction method can be a good guide for the production of mine Gas control work.

Key words: BP neural network, Monte Carlo method, The Prediction of Gas emission

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